作者机构：
[Xia Liu; Zhongshan Feng; Cuiwen Deng; Quan Yang; Minhao Wang; Xinjie Zhang; Yi Hu; Yufan Zheng; Juan Zeng; Juanjuan Han] Hubei Key Laboratory of Agricultural Waste Resource Utilization, School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China;[Bencai Lin] School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, PR China
通讯机构：
[Juan Zeng; Juanjuan Han] H;Hubei Key Laboratory of Agricultural Waste Resource Utilization, School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
摘要：
This work reports an eco-friendly, economical, and straightforward fabrication of chitosan (CS)/poly(diallyldimethylammonium chloride) (PDDA) blended anion exchange membranes via an aqueous processing strategy, where CS dissolved in a KOH/urea/H 2 O system forms the polymer matrix and PDDA acts as the hydroxide-ion conductor. Membranes are cast from solution and neutralized in KCl(aq) to form a gel film, followed by dehydration to form films. Robust hydrogen bond cross-linking facilitates lateral aggregation of chitosan chains, ensuring excellent component compatibility, low in-plane swelling (4.3–10.3 % at 80 °C), and favorable mechanical properties. The inherent hydrophilicity of CS and PDDA, imparts high through-plane swelling (45.0–150.1 % at 80 °C) and water uptake (142.5–327.2 % at 80 °C). High water uptake facilitates improved hydroxide conductivity (22.6–41.2 mS cm −1 at 80 °C) and significantly enhances alkaline stability in hot KOH solutions (mass retention: 79.3–88.6 %; IEC retention: 70.6–73.9 %; conductivity retention: 76.8–86.1 %). The optimized PDDA@CS 7.0% -2 membrane achieves a peak power density of 180.0 mW cm −2 at 325.2 mA cm −2 , demonstrating competitive performance among CS or PDDA-based AEMs.
This work reports an eco-friendly, economical, and straightforward fabrication of chitosan (CS)/poly(diallyldimethylammonium chloride) (PDDA) blended anion exchange membranes via an aqueous processing strategy, where CS dissolved in a KOH/urea/H 2 O system forms the polymer matrix and PDDA acts as the hydroxide-ion conductor. Membranes are cast from solution and neutralized in KCl(aq) to form a gel film, followed by dehydration to form films. Robust hydrogen bond cross-linking facilitates lateral aggregation of chitosan chains, ensuring excellent component compatibility, low in-plane swelling (4.3–10.3 % at 80 °C), and favorable mechanical properties. The inherent hydrophilicity of CS and PDDA, imparts high through-plane swelling (45.0–150.1 % at 80 °C) and water uptake (142.5–327.2 % at 80 °C). High water uptake facilitates improved hydroxide conductivity (22.6–41.2 mS cm −1 at 80 °C) and significantly enhances alkaline stability in hot KOH solutions (mass retention: 79.3–88.6 %; IEC retention: 70.6–73.9 %; conductivity retention: 76.8–86.1 %). The optimized PDDA@CS 7.0% -2 membrane achieves a peak power density of 180.0 mW cm −2 at 325.2 mA cm −2 , demonstrating competitive performance among CS or PDDA-based AEMs.
作者机构：
[Hang Yang; Hongli Diao; Shibin Xia] Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, China;[Wenxuan Jiao] School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China;[Lingyun Zouyi] Hubei Junbang Environmental Technology Co., Ltd., Wuhan, China
通讯机构：
[Hongli Diao; Shibin Xia] H;Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, China<&wdkj&>Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan, China
摘要：
The integration of artificial intelligence (AI) in the food industry has driven significant advancements in efficiency, safety, and sustainability. This review assesses the current state and future prospects of AI applications in key areas such as food traceability, safety, quality control, supply chain optimization, and intelligent packaging solutions. AI technologies, including machine learning (ML) algorithms and computer vision systems, are widely used to optimize supply chains, predict demand, reduce waste, and enhance food safety and quality monitoring. Advanced ML models are employed to analyze production data, monitor quality parameters, and predict shelf life, ensuring compliance with stringent regulatory standards. Despite these advancements, challenges related to data quality, system integration, computational demands, and ethical considerations remain, necessitating further research and collaboration among stakeholders. This review aims to elucidate these challenges while highlighting the transformative potential of AI in the food industry. By synthesizing recent developments and trends, this paper provides valuable insights for researchers, industry professionals, and policymakers, underscoring the pivotal role of AI in driving innovation and sustainability in the food sector.
通讯机构：
[Liu, P ; Liu, Y ; Liu, P] T;TianGong Univ, Sch Mat Sci & Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China.;Tiangong Univ, Sch Chem, Tianjin 300387, Peoples R China.;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;Tiangong Univ, Cangzhou Inst, Cangzhou 061000, Peoples R China.
摘要：
Correction for ‘Potentiating light-harvesting tactics through an A–D–A structure: repolarization of tumor-associated macrophages through phototherapy’ by Pai Liu et al. , J. Mater. Chem. B , 2024, 12 , 7870–7878, https://doi.org/10.1039/D4TB00814F.
通讯机构：
[Liu, Y; Li, SL ] T;[Liu, Y ] W;Tiangong Univ, Sch Chem Engn & Technol, State Key Lab Adv Separat Membrane Mat, Tianjin 300387, Peoples R China.;Tiangong Univ, Sch Chem, Tianjin 300387, Peoples R China.;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
摘要：
Due to repeated microbial infection and an immunosuppressive microenvironment, chronic wound healing can be significantly hindered. The development of multifunctional nanomaterials capable of simultaneous antibacterial and immunomodulatory effects continues to present challenges. Herein, a multifunctional nanocomposite, MXene/Cu(2-x)O, was developed that integrates photothermal therapy (PTT), chemodynamic therapy (CDT), and sonodynamic therapy (SDT), providing tri-modal therapy for synergistic antibacterial and immunomodulatory wound healing. MXene/Cu(2-x)O exhibited remarkable reactive oxygen species (ROS) generation through a Fenton-like reaction and ultrasound (US)-triggered in situ TiO(2) sensitization. In response to the weakly acidic infection microenvironment, the prepared nanocomposite could achieve robust antibacterial and anti-biofilm efficacy under near-infrared light (NIR) and US irradiation via synergistic ROS and hyperthermia. Concurrently, macrophages could be polarized toward the pro-inflammatory M1 phenotype, augmenting bactericidal activity with inflammatory factor secretion regulation. Additionally, hypoxia-inducible factor (HIF-1α)/vascular endothelial growth factor (VEGF)-driven angiogenesis was significantly promoted. Thus, MXene/Cu(2-x)O markedly accelerated wound healing under NIR/US irradiation. Both in vitro and in vivo experimental results confirmed that MXene/Cu(2-x)O exhibits excellent antibacterial and immunomodulatory capabilities and can effectively expedite infected wound healing. This work presents a paradigm for multimodal synergistic therapy in wound healing, offering inspiration for advancing chronic refractory wound treatment.
关键词：
Thin-film nanocomposite membrane;Montmorillonite nanosheets;Interlayer;Carbon nanotubes;Separation of Li+ and Mg2+
摘要：
A membrane for fast and efficient separation of Li + and Mg 2+ was successfully prepared by constructing a thin montmorillonite nanosheets (MMTNS) interlayer with carbon nanotubes (CNTs) onto PES substrate. The introduction of MMTNS interlayer decreased the thickness of polyamide layer formed between polyethyleneimine and trimesoyl chloride as well as improved the hydrophilicity of membrane. CNTs expanded the interlayer spacing of MMTNS interlayer and shortened the length of water channels. The optimal CNTs/MMTNS/PA membrane demonstrated high Li + /Mg 2+ separation performance with a selectivity of 20.71, and exhibited a permeability of 22.45 L m −2 h −1 , nearly double that of MMTNS/PA membrane.
A membrane for fast and efficient separation of Li + and Mg 2+ was successfully prepared by constructing a thin montmorillonite nanosheets (MMTNS) interlayer with carbon nanotubes (CNTs) onto PES substrate. The introduction of MMTNS interlayer decreased the thickness of polyamide layer formed between polyethyleneimine and trimesoyl chloride as well as improved the hydrophilicity of membrane. CNTs expanded the interlayer spacing of MMTNS interlayer and shortened the length of water channels. The optimal CNTs/MMTNS/PA membrane demonstrated high Li + /Mg 2+ separation performance with a selectivity of 20.71, and exhibited a permeability of 22.45 L m −2 h −1 , nearly double that of MMTNS/PA membrane.
期刊：
Journal of Materials Chemistry A,2025年 ISSN：2050-7488
通讯作者：
Zhang, Lingjie;Zhao, YL;Zhang, LJ
作者机构：
[Zhang, Lingjie; Yan, Jianglin; Song, Shaoxian; Zhao, Yunliang; Huang, Lianqiu; Jiang, Xiongrui; Chen, Licai; Zhao, YL; Wang, Zhenlei] Wuhan Univ Technol, Sch Resources & Environm Engn, Wenzhi St 34, Wuhan 430070, Hubei, Peoples R China.;[Zhang, Lingjie; Quintana, Mildred; Meza, Viridiana Garcia; Wang, Zhenlei] Univ Autonoma San Luis Potosi, Fac Ciencias, Ave Parque Chapultepec 1570, San Luis Potosi 78210, Mexico.;[Zhang, Tingting] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Sarocchi, Damiano; Wang, Zhenlei] Univ Autonoma San Luis Potosi, Fac Ingn, Inst Geol, Ave Parque Chapultepec 1570, San Luis Potosi 78210, Mexico.;[Zhao, Yunliang; Zhao, YL] Wuhan Clayene Technol Co Ltd, Tangxunhu North Rd 36, Wuhan 430223, Hubei, Peoples R China.
通讯机构：
[Zhang, LJ; Zhao, YL ] W;[Zhang, LJ ] U;Wuhan Univ Technol, Sch Resources & Environm Engn, Wenzhi St 34, Wuhan 430070, Hubei, Peoples R China.;Univ Autonoma San Luis Potosi, Fac Ciencias, Ave Parque Chapultepec 1570, San Luis Potosi 78210, Mexico.;Wuhan Clayene Technol Co Ltd, Tangxunhu North Rd 36, Wuhan 430223, Hubei, Peoples R China.
摘要：
Driven by the boosted demand for energy storage and conversion devices, highly conductive proton exchange membranes (PEMs) are extremely desired. Assembling atomically thin nanosheets into nanofluidic channels represents one promising way to construct high-performance PEMs. However, how to produce ultra-aligned nanofluidic channels in a universal and scalable manner is still challenging. Here, we report a dual-constrained assembly strategy to fabricate two-dimensional (2D) montmorillonite (MMT) membranes with highly ordered nanochannels and fast proton transport through confined modification with sulfonated polyvinyl alcohol (SPVA). The numerous polar functional groups with rich lone pair electrons of SPVA enabled nanosheets to feature more negative charges and additional proton carriers, improving the spatial orientation degree of nanosheet dispersion via the electrostatic confinement effect. The hydrogen bond interaction between SPVA and nanosheets offered a unique capillary force compensation effect to constrain nanochannel disordering during water removal. Consequently, the SPVA-modified MMT membrane presented significantly enhanced alignment of nanochannels, endowing it with ultra-high proton conductivity (134.58 mS cm −1 ), ultra-low activation energy (9.19 kJ mol −1 ), and excellent stability. This work provides a facile and general strategy for constructing high-performance PEMs, and opens an avenue for the development and design of highly aligned lamellar membranes.
通讯机构：
[Hu, C ] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Agricultural carbon emissions;Spatial spillover effect;Super-SBM model;Yangtze River economic belt
摘要：
Researching the agricultural carbon emission efficiency (ACEE) of the Yangtze River Economic Belt (YEB) has significant theoretical and policy implications for promoting high− quality agricultural development and achieving China’s “dual carbon” goals. Based on the agricultural generation panel data from the YEB spanning 2001 to 2021, the Super-SBM model for undesirable outputs is employed to calculate the ACEE for 11 provinces and cities. Additionally, kernel density estimation and Moran’s I index are utilized to analyze the temporal and spatial evolution characteristics of ACEE. Furthermore, a spatial Durbin model is applied to investigate the key factors influencing ACEE in the YEB and their spatial spillover effects. Empirical results indicate that from 2001 to 2021, the ACEE within the YEB has demonstrated a fluctuating upward trend, with significant geographical disparities among the provinces and cities along the route. In terms of spatial distribution, ACEE is characterized by a pattern of downstream > midstream > upstream, reflecting an overall trend of “higher in the east and lower in the west, and the ACEE in the YEB exhibits characteristics of spatial aggregation. ACEE exhibits a significant positive spatial spillover effect in theYEB. Key factors influencing the enhancement of ACEE include the level of mechanization and the agricultural industrial structure. Conversely, the use of pesticides serves as the primary constraint hindering the improvement of ACEE. Based on the research findings, policy recommendations have been proposed to promote green, low-carbon agriculture and enhance high-quality agricultural development in the YEB.
摘要：
Constructing non-noble metal-based electrocatalysts supported on heteroatom-doped porous carbon materials with robust and enduring electrocatalytic activities for the oxygen reduction/evolution reactions (ORR/OER) is essential for propelling advancements in energy-related technologies. In this study, Co 2 P nanoparticles and Fe-N x sites embedded N, P co-doped micro-/meso-/macroporous graphitized carbon nanosheets (Co 2 P/Fe-N x @NPC) catalyst was designed via an eco-friendly phytic acid (PA)-assisted phosphidation strategy. Its synthesis involved PA-etching two-dimensional Core@shell leaf-like zeolitic imidazolium frameworks (Fe-ZIF-L@Zn/Co-ZIF-L) precursor and pyrolysis. PA not only acts as an etching agent but also is a phosphorus source for the formation of P-doping and Co 2 P. The leaf-like core-shell morphology, high surface area and excellent pore structure of graphitized carbon nanosheets facilitated the surface electron transfer and the diffusion of reactive species. Notably, the resulting Co 2 P/Fe-N x @NPC catalyst exhibited remarkable activity in both ORR (E 1/2 = 0.835 V) and OER (η 10 = 0.310 V). The theoretical investigations reveal that the synergistic effect of Fe-N 4 sites and Co 2 P nanoparticles optimized ORR intermediates adsorption and accelerated the reaction kinetics. Moreover, its bifunctional activity parameter (ΔE) for ORR and OER was only 0.705 V, which was lower than Pt/C+RuO 2 catalyst (0.715 V). This study demonstrates an effective strategy to develop ZIF-L-derived catalysts with good morphology and dual active sites.
Constructing non-noble metal-based electrocatalysts supported on heteroatom-doped porous carbon materials with robust and enduring electrocatalytic activities for the oxygen reduction/evolution reactions (ORR/OER) is essential for propelling advancements in energy-related technologies. In this study, Co 2 P nanoparticles and Fe-N x sites embedded N, P co-doped micro-/meso-/macroporous graphitized carbon nanosheets (Co 2 P/Fe-N x @NPC) catalyst was designed via an eco-friendly phytic acid (PA)-assisted phosphidation strategy. Its synthesis involved PA-etching two-dimensional Core@shell leaf-like zeolitic imidazolium frameworks (Fe-ZIF-L@Zn/Co-ZIF-L) precursor and pyrolysis. PA not only acts as an etching agent but also is a phosphorus source for the formation of P-doping and Co 2 P. The leaf-like core-shell morphology, high surface area and excellent pore structure of graphitized carbon nanosheets facilitated the surface electron transfer and the diffusion of reactive species. Notably, the resulting Co 2 P/Fe-N x @NPC catalyst exhibited remarkable activity in both ORR (E 1/2 = 0.835 V) and OER (η 10 = 0.310 V). The theoretical investigations reveal that the synergistic effect of Fe-N 4 sites and Co 2 P nanoparticles optimized ORR intermediates adsorption and accelerated the reaction kinetics. Moreover, its bifunctional activity parameter (ΔE) for ORR and OER was only 0.705 V, which was lower than Pt/C+RuO 2 catalyst (0.715 V). This study demonstrates an effective strategy to develop ZIF-L-derived catalysts with good morphology and dual active sites.
关键词：
Carbon nitride;Surface hydroxylation;Photocatalytic NO oxidation;Hydrothermal reaction;Photocatalytic mechanism
摘要：
The nitrogen oxide emissions originating from combustion pose significant risks to the environment. Photocatalysis is considered an efficient and environmentally friendly strategy to alleviate this problem. Graphitic carbon nitride (g-C3N4) is regarded as one of the most promising organic photocatalytic materials for environmental purification. However, its small specific surface area, weak adsorption and high recombination rate of charge carriers result in low intrinsic photocatalytic activity. To overcome these obstacles, a hydrothermal treatment of dicyandiamide-derived g-C3N4 (DCN) at different temperatures (140–200 °C) was employed to enhance the photocatalytic activity for NO oxidation. The experimental results demonstrated a significant improvement in the photocatalytic oxidation removal rate of NO after a hydrothermal treatment. The optimal photocatalyst, DCN-180, treated at 180 °C, demonstrated the highest NO removal efficiency (65.0 %), which is twice the value of pristine DCN (32.5 %). Additionally, the formation of the toxic intermediate NO2 was effectively suppressed during the reaction. Photoelectrochemical tests revealed that DCN-180 exhibited higher photocurrent density and smaller impedance radius compared to the untreated g-C3N4 sample. Moreover, density functional theory (DFT) calculations confirmed that the DCN-180 sample showed a stronger ability to adsorb O2 and NO. The enhanced photocatalytic NO oxidation performance of DCN-180 has been primarily attributed to its enlarged specific surface area (from 10.7 to 35.5 m2 g−1), local polarization effect, reduced interfacial charge transfer resistance, and improved adsorption abilities for NO and O2 molecules. This study provides valuable insights for designing and preparing highly efficient g-C3N4 based photocatalysts through surface modification for photocatalytic NO purification.
The nitrogen oxide emissions originating from combustion pose significant risks to the environment. Photocatalysis is considered an efficient and environmentally friendly strategy to alleviate this problem. Graphitic carbon nitride (g-C3N4) is regarded as one of the most promising organic photocatalytic materials for environmental purification. However, its small specific surface area, weak adsorption and high recombination rate of charge carriers result in low intrinsic photocatalytic activity. To overcome these obstacles, a hydrothermal treatment of dicyandiamide-derived g-C3N4 (DCN) at different temperatures (140–200 °C) was employed to enhance the photocatalytic activity for NO oxidation. The experimental results demonstrated a significant improvement in the photocatalytic oxidation removal rate of NO after a hydrothermal treatment. The optimal photocatalyst, DCN-180, treated at 180 °C, demonstrated the highest NO removal efficiency (65.0 %), which is twice the value of pristine DCN (32.5 %). Additionally, the formation of the toxic intermediate NO2 was effectively suppressed during the reaction. Photoelectrochemical tests revealed that DCN-180 exhibited higher photocurrent density and smaller impedance radius compared to the untreated g-C3N4 sample. Moreover, density functional theory (DFT) calculations confirmed that the DCN-180 sample showed a stronger ability to adsorb O2 and NO. The enhanced photocatalytic NO oxidation performance of DCN-180 has been primarily attributed to its enlarged specific surface area (from 10.7 to 35.5 m2 g−1), local polarization effect, reduced interfacial charge transfer resistance, and improved adsorption abilities for NO and O2 molecules. This study provides valuable insights for designing and preparing highly efficient g-C3N4 based photocatalysts through surface modification for photocatalytic NO purification.
摘要：
Tin oxide (SnO 2 ) as one of the most intensively investigated anode materials for LIBs is impeded for its commercial application due to the low electronic conductivity and huge volume change during the charge/discharge process which resulting in severe capacity fading and poor cycling ability. Herein, hybrid SnO 2 /MoS 2 @C nanocomposite was designed and synthesized hydrothermally using P123 as dispersant and glucose as the carbon source, and investigated electrochemically and comparatively. The results show that the hybrid SnO 2 /MoS 2 @C nanocomposite anode delivers reversible specific capacities of 1047.41, 985.06, 837.23, 687.37 and 545.96 mAh g -1 at current densities of 0.1, 0.2, 0.5, 1, and 2 A g -1 , respectively and the discharge specific capacity still remains ca. 1047 mAh g -1 after 200 cycles at 0.1 A g -1 , demonstrating an improved cycling stability and rate capability, which might be attributed to the unique hybrid architecture with synergistic effect on the reaction kinetics and charge transfer properties. This paves a way for developing advanced energy storage materials in in next-generation energy storage systems.
Tin oxide (SnO 2 ) as one of the most intensively investigated anode materials for LIBs is impeded for its commercial application due to the low electronic conductivity and huge volume change during the charge/discharge process which resulting in severe capacity fading and poor cycling ability. Herein, hybrid SnO 2 /MoS 2 @C nanocomposite was designed and synthesized hydrothermally using P123 as dispersant and glucose as the carbon source, and investigated electrochemically and comparatively. The results show that the hybrid SnO 2 /MoS 2 @C nanocomposite anode delivers reversible specific capacities of 1047.41, 985.06, 837.23, 687.37 and 545.96 mAh g -1 at current densities of 0.1, 0.2, 0.5, 1, and 2 A g -1 , respectively and the discharge specific capacity still remains ca. 1047 mAh g -1 after 200 cycles at 0.1 A g -1 , demonstrating an improved cycling stability and rate capability, which might be attributed to the unique hybrid architecture with synergistic effect on the reaction kinetics and charge transfer properties. This paves a way for developing advanced energy storage materials in in next-generation energy storage systems.
摘要：
The synthesis of dimethylaminopropylmethacrylamide-benzylammonium chloride (QD-BC), a kind of acrylamide quaternary ammonium salt, through the combination of N-dimethylamine propyl methacrylamide and benzyl chloride (BC) is presented in this paper. The structure of QD-BC was analyzed using FTIR, carbon spectrum, mass spectrometry and 1HNMR spectroscopy. The resulting product was then utilized for the preparation of light-cured antimicrobial coatings. The mechanical properties of the light-cured coatings were evaluated through drawing tests, etc. The antimicrobial efficacy of coatings with varying contents of QD-BC against E. coli and S. aureus was investigated. The results indicate that the coating with the QD-BC content of 7.2% exhibits maximum adhesion strength, reaching 0.87 MPa. Moreover, when the QD-BC content is 6%, the coating displays a hardness value of 5H while maintaining good flexibility throughout all formulations tested. The coating with QD-BC content of 7.5% shows the highest impact strength among all compositions studied. Furthermore, at respective concentrations of 7.5% and 4.2% for the E. coli and S. aureus testing strains, these coatings demonstrate complete antimicrobial activity with exceptional durability.
摘要：
In this study, thermal and calcium oxide (CaO) pretreatment were used as a strategy to improve the performance of the anaerobic digestion of food waste. Meanwhile, the carbon emissions among the two strategies were evaluated. The results showed that both the two strategies could effectively promote the solubilization of organic matter in food waste and improve the hydrolysis rate of anaerobic digestion, which resulted in an increase of the methane yield. The highest methane yield (284.4 mL/g VS) was obtained in the group pretreated with 1.0 g/L CaO, which was increased by 23.8% compared with the control group. After the pretreatment, the anaerobic digestion pathway changed from acetotrophic methanogenesis to the co-dominated methanogenesis process by hydrogentrophic and acetotrophic. Meanwhile, CaO pretreatment had a better performance on the carbon emission which was increased by 23.75% compared with the control group.
摘要：
Iron-manganese modified biochar (FMBC) was synthesized from rice husk via a microwave-assisted low-temperature oxidation method for the simultaneous removal of Cd(II) and As(III) from aqueous solutions. Compared with the conventional oil-bath method, the microwave-assisted synthesis endowed FMBC with a more developed porous structure (38 % increase in pore volume and 45 % enlargement in average pore diameter) and richer surface functional groups (-OH, -COOH, Fe-OH, Mn-O), significantly enhancing its adsorption performance. The adsorption of Cd(II) and As(III) by FMBC demonstrated a monolayer adsorption. The maximum adsorption capacities for Cd(II) and As(III) by FMBC reached 75.21 mg/g and 3.46 mg/g, respectively. In the dual-adsorbate system, the presence of As(III) increased the adsorption of Cd(II) on FMBC by 4.66 %, and the presence of Cd(II) increased the adsorption of As(III) on FMBC by 26.17 %, indicating respective synergism effect. Mechanistic analysis indicated that the adsorption process mainly involved electrostatic adsorption, ion exchange, complexation with oxygen-containing groups, oxidation of As(III) to As(V) by MnOx and physical adsorption. This study provides a sustainable synthesis strategy for developing low-cost, high-performance multifunctional adsorbents with broad application potential.
Iron-manganese modified biochar (FMBC) was synthesized from rice husk via a microwave-assisted low-temperature oxidation method for the simultaneous removal of Cd(II) and As(III) from aqueous solutions. Compared with the conventional oil-bath method, the microwave-assisted synthesis endowed FMBC with a more developed porous structure (38 % increase in pore volume and 45 % enlargement in average pore diameter) and richer surface functional groups (-OH, -COOH, Fe-OH, Mn-O), significantly enhancing its adsorption performance. The adsorption of Cd(II) and As(III) by FMBC demonstrated a monolayer adsorption. The maximum adsorption capacities for Cd(II) and As(III) by FMBC reached 75.21 mg/g and 3.46 mg/g, respectively. In the dual-adsorbate system, the presence of As(III) increased the adsorption of Cd(II) on FMBC by 4.66 %, and the presence of Cd(II) increased the adsorption of As(III) on FMBC by 26.17 %, indicating respective synergism effect. Mechanistic analysis indicated that the adsorption process mainly involved electrostatic adsorption, ion exchange, complexation with oxygen-containing groups, oxidation of As(III) to As(V) by MnOx and physical adsorption. This study provides a sustainable synthesis strategy for developing low-cost, high-performance multifunctional adsorbents with broad application potential.
摘要：
Although it has been demonstrated that biochar is an efficient technique for alleviating phosphate pollution in water, its widespread application has been limited due to the low adsorption capacity of raw biochar. Given calcium's high affinity for phosphate, this study prepared biochar through the pyrolysis of waste crayfish shells (PC) in the presence of boric acid (donated as BPC) and investigated its performance in removing phosphate from water. The experimental results shown that boric acid improved phosphate removal percentage of PC from 30.1% to 99.2% via enhancing the specific surface area and decreasing the original phosphorus content. The phosphate adsorption process of BPC followed a pseudo-first-order kinetic model, and the maximum adsorption capacity was 12.14 mg g -1 . The Langmuir equation could better describe its adsorption behavior. Additionally, BPC exhibited excellent phosphate adsorption performance in a wide pH range, and high tolerance to co-existing ions in water. This study provided a promising method to enhance the performance of PC, benefitting the wide application of PC.
Although it has been demonstrated that biochar is an efficient technique for alleviating phosphate pollution in water, its widespread application has been limited due to the low adsorption capacity of raw biochar. Given calcium's high affinity for phosphate, this study prepared biochar through the pyrolysis of waste crayfish shells (PC) in the presence of boric acid (donated as BPC) and investigated its performance in removing phosphate from water. The experimental results shown that boric acid improved phosphate removal percentage of PC from 30.1% to 99.2% via enhancing the specific surface area and decreasing the original phosphorus content. The phosphate adsorption process of BPC followed a pseudo-first-order kinetic model, and the maximum adsorption capacity was 12.14 mg g -1 . The Langmuir equation could better describe its adsorption behavior. Additionally, BPC exhibited excellent phosphate adsorption performance in a wide pH range, and high tolerance to co-existing ions in water. This study provided a promising method to enhance the performance of PC, benefitting the wide application of PC.
摘要：
<div class="mag_zhaiyao_sec"><p id="Par1" class="mag_zhaiyao_p">Cell migration is a fundamental biological process that plays a crucial role in both physiological and pathological conditions, and is largely influenced by the complex microenvironment, particularly the extracellular matrix (ECM), a macromolecular network that governs various cellular interactions. Extensive research has established that ECM-cell interactions are critical in multiple biological processes, with some directly regulating cell migration. Among ECM components, collagens stand out as key regulators of cell movement. However, existing reviews have provided only limited perspectives on the role of collagen-based biomaterials in directing migration across different cell populations. This gap in knowledge hinders a comprehensive understanding of collagen’s full potential. Drawing from systematic literature and our ongoing research, this review aims to summarize advancements over the past five years in the application of collagen-based biomaterials for modulating cell migration. The discussion primarily focuses on three pivotal cell types: stem cells, immune cells, and cancer cells. By shedding light on the functions, mechanisms, and therapeutic potential of collagen in cell migration, this review will contribute to the development of innovative collagen-based biomaterials with applications in wound healing and tissue regeneration.</div>
通讯机构：
[Zhang, L ] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
摘要：
Diffusion dialysis (DD) with anion exchange membranes (AEMs) as the core component is an ideal technology for acid recovery from acidic wastewater. Herein, a series of TEA–BPPO AEMs were prepared from triethanolamine (TEA) and brominated polyphenylene ether (BPPO) using the solution casting method. The structures of the prepared membranes were characterized and analyzed through nuclear magnetic resonance hydrogen spectroscopy ( 1 H NMR), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). In addition, the properties of the membranes, such as ion exchange capacity (IEC), linear swelling rate (LSR), water uptake ( W U ), chemical stability, thermal stability and mechanical stability, were explored. In DD experiments, the optimal AEM ( i.e. , TEA–BPPO–M80) applied to simulate acid recovery from a mixed HCl (1 mol L −1 )/FeCl 2 (0.2 mol L −1 ) solution exhibited an acid dialysis coefficient ( U H + ) of 0.0629 m h −1 and separation factor ( S ) of 97.78, which were significantly better than those of the commercial membrane DF-120. In addition, the TEA–BPPO–M80 AEM exhibited excellent thermal stability and acid resistance. In summary, the prepared membranes possess great potential for application in DD acid recovery.
摘要：
Industrial Cr(VI) effluents pose persistent environmental threats due to their toxicity and non-biodegradability. This study pioneers a novel functional sludge-derived biochar (SC@BC) synthesized via co-pyrolysis of coking sludge (CS, carbon source) and cold-rolling oily sludge (CROS, iron source) for enhanced Cr(VI) removal. Under optimized conditions (pyrolysis temperature: 800 degrees C, CS:CROS mass ratio = 1:1), SC@BC demonstrated a maximum Cr(VI) adsorption capacity of 161.13 mg/g. Kinetic analysis revealed that the adsorption process followed a pseudo-first-order model, governed by synergistic mechanisms of external diffusion and surface reactions. The removal mechanism involved electrostatic attraction, hydrogen bond, surface complexation, redox reactions, and precipitation, where Fe(II) acted as an electron donor to reduce Cr(VI) to less toxic Cr(III). Subsequent co-precipitation of Cr(III) with Fe(III) enhanced pollutant immobilization. ICP-MS analysis confirmed compliance of heavy metal leaching concentrations with GB 13456-2012 standards, validating environmental safety. This work provides a sustainable "waste-treats-waste" strategy for dual-sludge valorization and high-efficiency Cr(VI) remediation. Future research should assess SC@BC's scalability for industrial effluents and efficacy in multi-contaminant systems.
摘要：
This study compares the isothermal crystallization kinetics of nascent less-entangled UHMWPE ( PE_30°C_60min , synthesized via 5F-BAOFI/MAO) with conventional highly entangled C-UHMWPE of similar molecular weight. Avrami kinetic and Lauritzen-Hoffman analysis revealed that chain entanglement density critically governs crystallization behavior. The less-entangled PE_30°C_60min demonstrated superior crystallizability, evidenced by more crystalline domains in longer crystallization times compared to C-UHMWPE. Lauritzen-Hoffman calculations quantified interfacial energy differences: PE_30°C_60min exhibited a lower free energy of fold surface ( σ e = 8.16 × 10 -2 J ‧ m -2 ) compared to C-UHMWPE ( σ e = 0.11 J ‧ m -2 ), confirming that reduced chain entanglement enhances crystal growth kinetics. These results establish that tailored synthesis conditions controlling nascent chain entanglement effectively modulate UHMWPE crystallization kinetics and material properties.
This study compares the isothermal crystallization kinetics of nascent less-entangled UHMWPE ( PE_30°C_60min , synthesized via 5F-BAOFI/MAO) with conventional highly entangled C-UHMWPE of similar molecular weight. Avrami kinetic and Lauritzen-Hoffman analysis revealed that chain entanglement density critically governs crystallization behavior. The less-entangled PE_30°C_60min demonstrated superior crystallizability, evidenced by more crystalline domains in longer crystallization times compared to C-UHMWPE. Lauritzen-Hoffman calculations quantified interfacial energy differences: PE_30°C_60min exhibited a lower free energy of fold surface ( σ e = 8.16 × 10 -2 J ‧ m -2 ) compared to C-UHMWPE ( σ e = 0.11 J ‧ m -2 ), confirming that reduced chain entanglement enhances crystal growth kinetics. These results establish that tailored synthesis conditions controlling nascent chain entanglement effectively modulate UHMWPE crystallization kinetics and material properties.
关键词：
Isothiocyanate terphenyl and phenyl tolane;liquid crystals;low dielectric loss;electrostatic potential;microwave
摘要：
Nematic liquid crystals are advantageous for microwave communication due to their tunable dielectric properties and broad frequency range. However, the relationship between the lateral substituents of liquid crystal compounds and their dielectric behaviour, especially dielectric loss, requires further investigation. In this study, two series of new high birefringent isothiocyanate phenyl tolane (A1-A5) and isothiocyanate terphenyl (B1-B5) liquid crystals with lateral methyl or fluorine substitutions were synthesised and characterised. Dielectric properties in the 9-31 GHz frequency range, as well as mesomorphic behaviour, were assessed. The findings revealed that compound A5, featuring 2,6-difluorine substitutions on the P2 and P3 phenyl rings of isothiocyanate phenyl tolane, exhibited the lowest dielectric loss of 0.00232 (tan delta epsilon r perpendicular to decreases about 64.0%) and a higher material efficiency of 130.172 at 19 GHz (eta increases about 64.4%) compared to reference compound A1 with 2,6-difluorine substitutions on the P3 phenyl ring. DFT calculations revealed a positive correlation between tan delta epsilon r perpendicular to of A1-A5 and B1-B5 and the electrostatic potential at the -NCS end (divided by phi-NCS divided by). In conclusion, this research further advances the design and synthesis of liquid crystal molecules with low dielectric loss and high material efficiency.
