A novel approximation to the relation between reduced molecular potential of C1-3 hydrocarbon gases and their compressibility factor
作者：
Yang, Xiaohong* ;Zhang, Shunxi;Zhu, Weiling
期刊：
Petroleum Science and Technology ,2016年34(21):1755-1760 ISSN：1091-6466
通讯作者：
Yang, Xiaohong
作者机构：
[Zhang, Shunxi; Yang, Xiaohong; Zhu, Weiling] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Yang, Xiaohong] W;Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Compressibility factor;hydrocarbon gas;molecular potential;intermolecular interaction;distribution function;temperature
摘要：
Based on symmetric intermolecular interactions approximation, a novel relation between compressibility (Z) factor of hydrocarbon gases and molecular potential has been developed. The relation indicated that the Z factor was an exponential function of the depth of potential well, which was derived to be proportional to the molecular potential. By this relation, the reduced molecular potentials of methane, ethane, and propane were determined at the same temperature. The obtained reduced potentials appeared the standard L-J curve shape, suggesting the rationality and success of this approximation and showing the academic significance of the relation in estimating molecular potential.<br/> ©2016 Taylor & Francis Group, LLC.
语种：
英文
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沿[111]方向择优生长Pt/Ti电极制备及析氯电催化活性
作者：
Zhu Yu-Chan;Yuan Min;Zhang Huan;Wang Le;Quan Shan-Shan;...
期刊：
无机材料学报 ,2016年31(5):510-516 ISSN：1000-324X
通讯作者：
Ren Zhan-Dong
作者机构：
[Quan Shan-Shan; Chai Bo; Wang Le; Ren Zhan-Dong; Zhang Huan; Zhu Yu-Chan; Yuan Min] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Ren Zhan-Dong] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
氯析出;磁控溅射;形貌;机理
摘要：
针对目前低浓度氯化钠电解过程中存在的氧化物尺寸稳定阳极(DSA)使用寿命短以及Pt电极使用量高的问题,本研究通过磁控溅射法制备了具有沿[111]方向择优生长的Pt/Ti电极。SEM结果显示,磁控Pt表面平整,分散均匀,粒度大小为10 nm;通过XPS表征,未见到基体Ti的特征峰,说明其表面覆盖度好。电化学循环伏安曲线(CV)显示,磁控Pt的电化学面积最小,仅为1.08 cm~2,接近电极表观面积;磁控Pt氧区吸附电量和氢区吸附电量的比仅为0.83,说明其对氧吸附能力较差,不利于发生析氧反应。在单位电化学面积上,当电极电势为1.6 V时,磁控Pt的析氯电流达到0.085 A/cm~2,分别是电沉积Pt和热分解Pt的3.27和49.0倍,说明磁控Pt单位活性位点上具有很高的析氯反应活性。在此基础上,进一步研究表明磁控Pt电极析氯反应的Tafel斜率为44.3 mV/dec,其析氯反应机理符合Volmer-Heyrovsky机理,速控步骤为电化学复合脱附步骤。
语种：
中文
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A colorimetric and near-infrared fluorescent turn-on probe for rapid detection of sulfite
作者：
Zhang, Haiyan;Xue, Shuanghong;Feng, Guoqiang*
期刊：
Sensors and Actuators B-Chemical ,2016年231:752-758 ISSN：0925-4005
通讯作者：
Feng, Guoqiang
作者机构：
[Zhang, Haiyan] Wuhan Polytech Univ, Sch Chem & Environm Engn, 68 Xuefu South Rd, Wuhan 430023, Peoples R China.;[Feng, Guoqiang; Xue, Shuanghong] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.
通讯机构：
[Feng, Guoqiang] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.
关键词：
Near-infrared;Fluorescent turn-on probe;Naphthofluorescein;Sulfite;Fluorescence imaging
摘要：
A near-infrared (NIR) fluorescent turn-on probe for sulfite anions was developed. This probe uses naphthofluorescein as the NIR fluorophore and two levulinate groups as the reaction sites, and shows rapid response, high selectivity and sensitivity for sulfite anions with significant dual colorimetric and NIR fluorescence turn-on signal changes in DMSO-PBS buffer solution. The NIR fluorescence intensity at 695 nm (excited at 620 nm) increases linearly with sulfite concentration in a range of 0–300 μM and the detection limit was determined to be about 1.74 μM. The bioimaging experiments demonstrated that this probe has great potential for fluorescence imaging of sulfite in living cells.
语种：
英文
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Colorimetric and ratiometric fluorescent detection of bisulfite by a new HBT-hemicyanine hybrid
作者：
Zhang, Haiyan;Huang, Zijun;Feng, Guoqiang*
期刊：
Analytica Chimica Acta ,2016年920:72-79 ISSN：0003-2670
通讯作者：
Feng, Guoqiang
作者机构：
[Zhang, Haiyan] Wuhan Polytech Univ, Sch Chem & Environm Engn, 68 Xuefu South Rd, Wuhan 430023, Peoples R China.;[Huang, Zijun; Feng, Guoqiang] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.
通讯机构：
[Feng, Guoqiang] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, 152 Luoyu Rd, Wuhan 430079, Peoples R China.
关键词：
*Bisulfite;*Colorimetric;*Fluorescent;*HBT-hemicyanine hybrid;*Ratiometric
摘要：
A novel HBT-hemicyanine hybrid was prepared. This hybrid not only displays a large red-shifted (Δλ = 125 nm) emission compared to the well known ESIPT dye HBT, but also can be used as a new probe for rapid, colorimetric and ratiometric fluorescent detection of bisulfite with high selectivity and sensitivity in aqueous solution. The detection limit of this probe for HSO3− was calculated to be about 56 nM with a linear range of 0–25 μM. The potential application of this probe was exampled by detection of bisulfite in real food samples and living cells. Overall, this work not only provided a new ratiometric sensing platform, but also provided a new promising colorimetric and ratiometric fluorescent probe for bisulfite.
语种：
英文
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Kinetic evaluation on the degradation process of anaerobic digestion fed with piggery wastewater at different OLRs
作者：
Cheng, Qunpeng;Chen, Zhihua;Deng, Fang;Liao, Yuhua;Xiao, Bo;...
期刊：
Biochemical Engineering Journal ,2016年113:123-132 ISSN：1369-703X
通讯作者：
Li, Jianfen
作者机构：
[Cheng, Qunpeng; Li, Jianfen] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430073, Peoples R China.;[Cheng, Qunpeng; Chen, Zhihua; Xiao, Bo] Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430073, Peoples R China.;[Liao, Yuhua; Deng, Fang] Huazhong Univ Sci & Technol, China EU Inst Clean & Renewable Energy, Wuhan 430073, Peoples R China.
通讯机构：
[Li, Jianfen] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430073, Peoples R China.
关键词：
Anaerobic processes;Biogas;Biokinetics;Inhibition;Kinetic parameters;Modelling
摘要：
A kinetic model was developed to predict the degradation of organic matters,biogas production and the intermediate products considering the inhibition of pH, H<inf>2</inf>and H<inf>2</inf>S. The sensitivity of COD, acetate, butyrate and propionate to the kinetic parameters and the influence of pH, H<inf>2</inf>and H<inf>2</inf>S were also analysed. The results showed that the model could be well used to predict the anaerobic process. The maximum kinetic constants corresponding to the degradation of organic matters appeared at 5.3 kg COD/m<sup>3</sup>. From the degradation kinetic values of acetate, butyrate and propionate, it could be seen that the order of VFAs converted into methane was propionate >butyrate >acetate;From the degradation kinetic value of COD, it could be seen that the order of COD converted into VFAs was acetate >butyrate >propionate. With the increase of OLR, there were inhibitions existing in the anaerobic digester which showed up in the increase of concentration of H<inf>2</inf>and H<inf>2</inf>S. Through the sensitivity analysis, the initial concentration of COD was the most sensitive parameter which made great influence on the anaerobic digestion process.<br/> ©2016 Elsevier B.V.
语种：
英文
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改性MCM-41分子筛对阴离子偶氮染料的吸附作用机理
作者：
全姗姗;朱玉婵;任占海;郗腾;鲁明珠;...
期刊：
化工进展 ,2016年35(1):320-326 ISSN：1000-6613
通讯作者：
Zhu, Yuchan(zhuyuchan@163.com)
作者机构：
[全姗姗; 朱玉婵; 郗腾; 鲁明珠; 任占冬] School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan;Hubei;430023, China;[任占海] PetroChina Jilin Petrochemical Company, Jilin;Jilin
关键词：
吸附;甲基红;分子筛;表面电荷
摘要：
制备了改性介孔分子筛NH_3~+-MCM-41,研究了其对阴离子偶氮染料甲基红的吸附效果。研究表明,通过氨基改性使介孔分子筛MCM-41表面电荷发生改变,从而利用静电吸附作用改善了脱除效果,使甲基红吸附率提高了1.1倍,达到90.4%。溶液pH值的改变会影响NH_3~+-MCM-41的表面电荷,从而影响吸附效率,其最佳pH值为4。溶液中的杂质离子均会对吸附产生影响,当溶液中含有Cl~-、NO_3~-时,对吸附效果影响不大;而当溶液中含有CO_3~(2-)和HPO_4~(2-)等高价弱酸根离子时,对吸附效果影响很大,基本不吸附染料。此外,通过其吸附动力学研究发现,吸附过程中不符合准一级动力学模型,而较好符合准二级动力学,说明在该过程中存在化学吸附,这种化学吸附涉及吸附剂与吸附质之间的电子共用或电子转移。
语种：
中文
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Synthesis of styrene carbonate from styrene oxide and CO2 over ZnBr2 supported on MCM-41—Coated magnetic Fe3O4
作者：
Luo, Shanshan;Fan, Guozhi* ;Luo, Ming;Li, Jianfen;Song, Guangsen
期刊：
Journal of CO2 Utilization ,2016年14:23-30 ISSN：2212-9820
通讯作者：
Fan, Guozhi
作者机构：
[Li, Jianfen; Luo, Ming; Song, Guangsen; Fan, Guozhi; Luo, Shanshan] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Fan, Guozhi] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Carbon dioxide;Fe3O4;MCM-41;Styrene carbonate;ZnBr2
摘要：
ZnBr2 supported on magnetic nanoparticles Fe3O4 coated by MCM-41 (Fe3O4@MCM-41/ZnBr2) was prepared and characterized by infrared spectroscopy (IR), powder X-ray diffraction (XRD) and nitrogen adsorption–desorption isotherms. The as-prepared samples were used as a recyclable catalyst for solvent-free synthesis of styrene carbonate (SC) from styrene oxide (SO) and carbonate dioxide (CO2). The results showed that Fe3O4@MCM-41/ZnBr2 exhibited similar catalytic activity to homologous ZnBr2. It was found that the reaction depended on the reaction conditions in terms of the yield of SC. The yield of SC at 81.5% was obtained with 8 MPa CO2 pressure at 90 °C for 3 h. The supported catalyst Fe3O4@MCM-41/ZnBr2 can be easily recovered by a permanent magnet after the reaction and reused without further treatment. No significant change in the structure and loss in activity were observed. The yield of SC changed in a small range from 79.2 to 82.6% during 5 cycles.
语种：
英文
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Facile Synthesis of Fluorine Doped Graphitic Carbon Nitride with Enhanced Visible Light Photocatalytic Activity
作者：
Xu, Mengqiu;Chai, Bo* ;Yan, Juntao;Wang, Haibo;Ren, Zhandong;...
期刊：
NANO ,2016年11(12):1650137 ISSN：1793-2920
通讯作者：
Chai, Bo
作者机构：
[Paik, Kyung-Wook; Xu, Mengqiu; Chai, Bo; Wang, Haibo; Yan, Juntao; Ren, Zhandong] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Chai, Bo] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Fluorine doped g-C3N4;photocatalytic activity;visible light irradiation;charge separation
摘要：
Fluorine doped graphitic carbon nitride (g-C3N4) was successfully synthesized by a convenient co-polycondensation of urea and ammonium fluoride (NH4F) mixtures, and characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectra (FTIR), UV-Vis diffuse reflectance absorption spectra (UV-DRS), nitrogen adsorption–desorption, photoelectrochemical measurement and photoluminescence (PL) spectra. The photocatalytic activities of fluorine doped g-C3N4 samples were evaluated by the degradation of Rhodamine B (RhB) solution under visible light irradiation. The results showed that the fluorine doped g-C3N4 had a better photocatalytic activity than that of undoped g-C3N4, which was attributed to the favorable textural, optical and electronic properties derived from the fluorine atoms substituting nitrogen atoms of g-C3N4 frameworks. The photoelectrochemical measurements confirmed that the charges separation efficiency was improved by fluorine doping g-C3N4. Moreover, the tests of radical scavengers demonstrated that the holes (h +) and superoxide radicals ( ⋅O 2−) were the main active species for the degradation of RhB.
语种：
英文
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Impact of Telopeptides on Self-Assembly Properties of Snakehead (Channa argus) Skin Collagen
作者：
Zhang, Juntao;Zou, Meilian;Zhang, Ming;Wei, Benmei;Xu, Chengzhi;...
期刊：
Food Biophysics ,2016年11(4):380-387 ISSN：1557-1858
通讯作者：
Wang, Haibo
作者机构：
[Xu, Chengzhi; Xie, Dong; Wei, Benmei; Wang, Haibo; Zhang, Juntao; Zhang, Ming] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan, Hubei, Peoples R China.;[Zou, Meilian] Wuhan Polytech Univ, Sch Food Sci & Engn, Wuhan, Hubei, Peoples R China.
通讯机构：
[Wang, Haibo] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan, Hubei, Peoples R China.
关键词：
Fish-sourced collagen;Telopeptides;Concentrations;Rheology;Turbidity
摘要：
Much work has been done to understand the self-assembly properties of collagens from mammals. However, there is little information about fish-sourced collagens that are advantageous in certain applications. In this study, the self-assembly dynamics of tropocollagen (with telopeptides) and atelocollagen (without telopeptides) extracted from snakehead (Channa argus) skins was studied with turbidity, dynamic rheology, scanning electron microscopy (SEM), and quantitative percentage of self-assembly. Turbidity results indicate that the self-assembly of fish-sourced collagens followed the nucleation-growth two-step model, while rheological results unveiled two growth stages in the development of collagen gels. Based on SEM, telopeptides promoted the formation of thicker fibrils and increased the density of network that provided the structural basis of increased turbidity and strengthened storage and loss moduli. The SEM data were supported by the increased percentage of self-assembled collagens by telopeptides. Findings from this work may facilitate the understanding of structures and functions of products containing fish-sourced collagens and their application.
语种：
英文
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Effect of ultrasonication on the fibril-formation and gel properties of collagen from grass carp skin
作者：
Jiang, Ying;Wang, Haibo* ;Deng, Mingxia;Wang, Zhongwen;Zhang, Juntao;...
期刊：
Materials Science and Engineering C: Materials for Biological Applications ,2016年59:1038-1046 ISSN：0928-4931
通讯作者：
Wang, Haibo
作者机构：
[Jiang, Ying; Wang, Zhongwen] Wuhan Polytech Univ, Coll Food Sci & Engn, Wuhan, Hubei, Peoples R China.;[Zhang, Hanjun; Deng, Mingxia; Wang, Haibo; Zhang, Juntao] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan, Hubei, Peoples R China.;[Wang, Haiyin] Huzhong Univ Sci & Technol, Tongji Med Collage, Wuhan, Hubei, Peoples R China.
通讯机构：
[Wang, Haibo] W;Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan, Hubei, Peoples R China.
关键词：
Collagen;Ultrasonic treatment;Fibril formation;Collagen gels;Properties
摘要：
Controlling the fibril-formation process of collagen in vitro to fabricate novel biomaterials is a new area in the field of collagen research. This study aimed to determine the effect of ultrasonication on collagen fibril formation and the properties of the resulting collagen gels. Native collagen, extracted from the skin of grass carp, self-assembled under ultrasonic conditions (at different ultrasonic power and duration). The self-assembly kinetics, fibrillar morphology, and physical and cell growth-promoting properties of the collagen gels were analyzed and compared. The results showed that the self-assembly rate of collagen was increased by ultrasonication at the nucleation stage. The resulting fibrils exhibited smaller diameters and D-periodicity lengths than that of the untreated collagen samples (p < 0.05). The viscoelasticity and textural properties of collagen gels also changed after ultrasonication at the nucleation stage. Texture profile analysis and cell proliferation assays showed that ultrasonication produced softer collagen gel colloids, which were more suitable for cell proliferation than the untreated collagen gels.
语种：
英文
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A new model for the viscosity of liquid short chain (C1–C4) 1-alcohols over density and temperature based on Lennard-Jones potential
作者：
Yang, Xiaohong* ;Zhu, Weiling
期刊：
Journal of Molecular Liquids ,2016年224:234-239 ISSN：0167-7322
通讯作者：
Yang, Xiaohong
作者机构：
[Yang, Xiaohong; Zhu, Weiling] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Yang, Xiaohong] W;Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Alcohol;Viscosity;Model;Temperature;Density;Lennard-Jones potential
摘要：
This work attempts to develop a new model for the viscosity of liquid short chain (C1–C4) 1-alcohols based on the Lennard-Jones potential. The model derived a novel equation as the mixed power and exponential function of density and temperature. When the Lennard-Jones potential took the (11.91-6) pattern, the derived equation was found in good agreement with reliable experimental data reported in literature. The R squared for the equation fitting to the 279 gathered data points that distributed in the ranges: 223.15–476.2 K and 0.1–472.8 MPa, was ≥ 0.9973. Comparing to other famous theoretical models mentioned, the new model was accurate, simpler, and had theory background and physical meanings for the main terms. All these advantages suggested the success of the developed new model and showed its practical application potentials in the industry associating the alcohols. ©2016 Elsevier B.V.
语种：
英文
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BPNN–QSTR Friction Model for Organic Compounds as Potential Lubricant Base Oils
作者：
Gao, Xinlei* ;Wang, Ruitao;Wang, Zhan;Dai, Kang
期刊：
Journal of Tribology ,2016年138(3):031801 ISSN：0742-4787
通讯作者：
Gao, Xinlei
作者机构：
[Gao, Xinlei; Wang, Ruitao; Wang, Zhan] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei, Peoples R China.;[Dai, Kang] South Cent Univ Nationalities, Coll Pharm, Wuhan 430074, Hubei, Peoples R China.
通讯机构：
[Gao, Xinlei] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei, Peoples R China.
关键词：
Friction;Lubricants
摘要：
A series of ball-disk contact friction tests were carried out using a microtribometer to study the tribological characteristics of steel/steel rubbing pairs immersed in 47 different organic compounds as lubricant base oils. The structures and their friction data were included in a back-propagation neural network (BPNN) quantitative structure tribo-ability relationship (QSTR) model. Following leave-one-out (LOO) cross-validation, the BPNN model shows good predictability and accuracy for the friction parameter (R<sup>2</sup>= 0.994, R<sup>2</sup>(LOO) = 0.849, and q<sup>2</sup>= 0.935). Connectivity indices (CHI) show the large positive contribution to friction, which imply that friction performance has a strong correlation with molecular structure. The BPNN-QSTR models can flexibly and easily estimate the friction properties of lubricant base oils. ©2016 by ASME.
语种：
英文
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Quantitative Structure Tribo-Ability Relationship for Organic Compounds as Lubricant Base Oils Using CoMFA and CoMSIA
作者：
Gao, Xinlei* ;Liu, Denghui;Wang, Zhan;Dai, Kang*
期刊：
Journal of Tribology ,2016年138(3):031802 ISSN：0742-4787
通讯作者：
Gao, Xinlei;Dai, Kang
作者机构：
[Gao, Xinlei; Liu, Denghui; Wang, Zhan] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei Province, Peoples R China.;[Dai, Kang] South Cent Univ Nationalities, Coll Pharm, Wuhan 430074, Hubei Province, Peoples R China.
通讯机构：
[Gao, Xinlei] W;[Dai, Kang] S;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei Province, Peoples R China.;South Cent Univ Nationalities, Coll Pharm, Wuhan 430074, Hubei Province, Peoples R China.
关键词：
comparative molecular field analysis;comparative molecular similarity index analysis;lubricant base oil;quantitative structure tribo-ability relationship;wear
摘要：
The structures and the wear data of 47 different organic compounds as lubricant base oils were included in a comparative molecular field analysis (CoMFA) and comparative molecular similarity index analysis (CoMSIA)quantitative structure tribo-ability relationship (QSTR) model. CoMFA- and CoMSIA-QSTR models illustrate good accuracy, robustness, and predictability, with the latter more accurate than the former. CoMFAQSTR with both steric and electrostatic fields: R<sup>2</sup>=0. 958, R<sup>2</sup><inf>(LOO)</inf>=0.958, and q<sup>2</sup>=0.625;with only a steric field: R<sup>2</sup>=0.987, R<sup>2</sup><inf>(LOO)</inf>=0.987, and q<sup>2</sup>=0.692. CoMSIA-QSTR with a steric field: R<sup>2</sup>=0.924, R<sup>2</sup><inf>(LOO)</inf>=0.923, and q<sup>2</sup>=0.898, whereas CoMSIA-QSTR with a hydrophobic field gave R<sup>2</sup>=0.985, R<sup>2</sup><inf>(LOO)</inf>=0.985, and q<sup>2</sup>=0.899. QSTR with CoMFA and CoMSIA shows a strong correlation to wear scar diameter scales (WDS), and builds statistical and graphical models that relate the wear properties of molecules to their structures. ©2016 by ASME.
语种：
英文
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Reactive extraction of amino acids mixture in hydrolysate from cottonseed meal with di(2-ethylhexyl) phosphoric acid
作者：
Zhang, Jian* ;Zhang, Shunxi;Yang, Xinni;Qiu, Ling;Gao, Bing;...
期刊：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY ,2016年91(2):483-489 ISSN：0268-2575
通讯作者：
Zhang, Jian
作者机构：
[Qiu, Ling; Zhang, Jian; Zhang, Shunxi; Li, Rui; Chen, Jiwang; Yang, Xinni] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Gao, Bing] Hubei Univ Technol, Dept Iight Ind, Wuhan 430064, Peoples R China.
通讯机构：
[Zhang, Jian] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
cottonseed meal;hydrolysate;amino acid;di(2-ethyl-hexyl)phosphoric acid;solvent extraction
摘要：
BACKGROUND: In recent years there has been a noticeable growth of amino acid utilization throughout the world. How to separate and purify amino acids from fermentation broths or protein hydrolysates in an effective and low cost way is increasingly becoming an urgent problem. The utilization of solvent extraction technology for amino acids separation offers one solution. RESULTS: Extractions of individual amino acids in aqueous solution with di(2-ethyl-hexyl)phosphoric acid (D2EPHA) are dominated by aqueous pH and their hydrophobicity. The degree of extraction of amino acids increases with increasing pH (1.0<pH<3.0), but changes only slightly in the range 3.0<pH<7.0. Amino acids with a longer carbon chain or cyclic structure have higher degrees of extraction, while those with additional polar groups have lower degrees of extraction. Protein hydrolysate from cottonseed meal was obtained by combination ofmicrobial fermentation andHCl hydrolysis. The greatestextraction ofamino acids from the hydrolysate was found at initial feed pH 6.5, and byproducts (e.g. reducing sugars and sodium chloride) were completely retained in raffinate. Amino acids loading the organic phase can be completely stripped by using an aqueous solution having an equal volume of 0.5molL<sup>-1</sup>HCl. CONCLUSION: Use of D2EPHA reactive extraction enabled avoidance of a sequence of purification stages and provided purer back-extracts. ©2014 Society of Chemical Industry<br/> ©2016 Society of Chemical Industry.
语种：
英文
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A theoretical model for the density and temperature dependent viscosity of hydrocarbon gases
作者：
Yang, Xiaohong* ;Zhu, Weiling
期刊：
Petroleum Science and Technology ,2016年34(8):765-770 ISSN：1091-6466
通讯作者：
Yang, Xiaohong
作者机构：
[Yang, Xiaohong; Zhu, Weiling] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Yang, Xiaohong] W;Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Density;hydrocarbon gas;model;temperature;viscosity
摘要：
ABSTRACT: Based on statistical mechanics, a theoretical model for the density and temperature-dependent viscosity of hydrocarbon gas has been developed. In the model, the averaged intermolecular attractive potential was suggested as a power function of density, and the viscosity was derived as an exponential function of the potential. In the evaluation, the derived equation was found in good agreement with reliable literature data with averaged and maximum absolute percent deviations of 0.34% and 0.98%, and comprehensively performed better than several selected methods. The performances showed the success of the theoretical model, and revealed application potentials in the natural gas industry.<br/> ©2016 Taylor & Francis Group, LLC.
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英文
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A facile electrospinning and direct annealing method for the fabrication of multi-porous ZnFe2 O4 nanotubes with enhanced photocatalytic activity
作者：
Yan, Juntao;Gao, Shenyuan;Wang, Chunlei* ;Chai, Bo;Li, Jianfen* ;...
期刊：
Materials Letters ,2016年184(Dec.1):43-46 ISSN：0167-577X
通讯作者：
Wang, Chunlei;Li, Jianfen
作者机构：
[Li, Jianfen; Wang, CL; Wang, Chunlei; Song, Guangsen; Gao, Shenyuan; Chai, Bo; Yan, Juntao] Wuhan Polytech Univ, Coll Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Chen, Shizhong] Wuhan Polytech Univ, Coll Food Sci & Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Wang, CL; Li, JF] W;Wuhan Polytech Univ, Coll Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词：
Porous materials;Semiconductor;Nanotubes;ZnFe2O4;Electrospinning
摘要：
The multi-porous ZnFe2O4 (ZFO) nanotubes are fabricated by the direct annealing process of ZFO precursor nanofibers, which is prepared by a facile electrospinning method. The crystal structure, composition, morphology, magnetic property, specific surface area and pore size distribution of multi-porous ZFO nanotubes are systematically characterized. The results indicated the multi-porous ZFO nanotubes with high purity phase possess obvious multi-porous and tubular microstructure, the mean inner diameter, specific surface area and pore volume are about 150 nm, 57.42 m(2) g(-1) and 0.16 cm(3) g(-1), respectively. Moreover, the multi-porous ZFO nanotubes exhibit a better photocatalytic activity than that of ZFO nanoparticles for photocatalytic degradation of RhB solution. (C) 2016 Elsevier B.V. All rights reserved.
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英文
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含氮杂环类润滑油添加剂CoMFA-QSTR及CoMSIA-QSTR抗磨损性能模型的构建
作者：
刘登辉;杨奇;王锐涛;王越;戴康;...
期刊：
摩擦学学报 ,2016年36(4):421-429 ISSN：1004-0595
通讯作者：
Gao, Xinlei(gaoxl0131@163.com)
作者机构：
[王锐涛; 王越; 刘登辉; 高新蕾] School of Chemical and Environment Engineering, Wuhan Polytechnic University, Wuhan, Hubei, 430023, China;[戴康] School of Pharmacy, South-Central University for Nationalities, Wuhan, Hubei, 430074, China;[贺军波; 杨奇] School of Food science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei, 430023, China
通讯机构：
School of Chemical and Environment Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
关键词：
摩擦学定量构效关系;润滑油添加剂;抗磨损性能;比较分子力场分析;比较分子相似性指数分析
摘要：
依据摩擦学定量构效关系理论(QSTR),采用比较分子力场分析(CoMFA)和比较分子相似性指数分析(CoMSIA)这两种方法研究了含氮杂环类润滑油添加剂的抗磨损性能的摩擦学三维定量构效关系(3D-QSTR),并建立了相应的3D-QSTR模型.结果表明:仅利用静电场构建CoMFA或CoMSIA模型时,模型预测能力最好, r~2, q~2均大于0.5.根据CoMFA或CoMSIA模型等高线图分析得出:分子静电场对含氮杂环类润滑油添加剂的抗磨损性能影响最大,在特定区域的引入带负电荷或带正电荷的基团将有助于抗磨性能的提高.
语种：
中文
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Electrokinetic remediation of soil containing Cr(VI) by photovoltaic solar panels and a DC-DC converter
作者：
Zhang, Shunxi* ;Zhang, Jian;Cheng, Xianzhong;Mei, Yunjun;Hu, Chun;...
期刊：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY ,2015年90(4):693-700 ISSN：0268-2575
通讯作者：
Zhang, Shunxi
作者机构：
[Cheng, Xianzhong; Li, JianFen; Zhang, Jian; Mei, Yunjun; Zhang, Shunxi; Hu, Chun; Wang, Mei] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei, Peoples R China.
通讯机构：
[Zhang, Shunxi] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei, Peoples R China.
关键词：
electrokinetic remediation;soil containing Cr(VI);photovoltaic energy;DC–DC converter;heavy metals
摘要：
BACKGROUND: In China, soil pollution is becoming more and more serious with the national economy rapidly developing. How to remedy soil containing heavy metals in an effective and low cost way is increasingly becoming an urgent problem. Utilization of renewable photovoltaic energy in the environmental protection field brings forward a solution. RESULTS: Cr(VI) removal from soil using an electrokinetic remediation process powered by photovoltaic solar modules and a DC-DC converter was studied. The results show that under solar irradiation intensity of 650±20Wm<sup>-2</sup>and 9V output voltage of the converter, Cr(VI) removal efficiency of an iron electrode can increase to 99.8% in 30min. For output voltage in the range 3-11.5V, voltage has a significant effect on Cr(VI) removal efficiency. When initial Cr(VI) concentration is increased from 200mgkg<sup>-1</sup>to 450mgkg<sup>-1</sup>, Cr(VI) removal efficiency and removal rate decrease. Total Cr concentrations and XRD analysis show that chromium in soil is accumulated near the anodic zone after electrokinetic remediation. For the highest voltage of 11.5V, although sunlight utilization efficiency is the highest, electric energy consumption is the largest, and EPV and EPM are 249.4 kWh kg<sup>-1</sup>and 156.1 kWh m<sup>-3</sup>, respectively. CONCLUSION: The process used for removal of Cr(VI) from soil is feasible.<br/> ©2014 Society of Chemical Industry.
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英文
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高选择性的菜籽蛋白含量测定方法
作者：
沈娜娜;刘晔;刘大川;钟启新
期刊：
中国粮油学报 ,2015年30(2):107-111,117 ISSN：1003-0174
通讯作者：
Liu, Ye
作者机构：
[刘大川; 沈娜娜; 钟启新] College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China;[刘晔] College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
通讯机构：
College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
关键词：
菜籽蛋白;真蛋白;非蛋白氮;抗干扰
摘要：
为解决菜籽蛋白原料及制品中真蛋白含量难以测定的问题,建立了一种基于分级和定量2步完成的高选择性菜籽蛋白含量测定方法。通过酸化丙酮溶液和沸水萃取实施分级处理,可将样品中的非蛋白氮分离;结合应用可溶性蛋白的染色法测定和不溶性蛋白的凯氏定氮法测定,可获得样品的真蛋白含量。该方法变异系数不大于2.83%,回收率95%~96%,并可排除本源性非蛋白氮(包括芥子碱和硫甙)及外源性非蛋白氮(包括硝酸盐、铵盐、三聚氰胺和尿素)的干扰。该方法具备良好的抗干扰能力且不受蛋白质溶解性的影响,可推广到更多的植物蛋白制品及原料的真蛋白含量测定中,并可为相关行业的掺杂辨识或品质评价提供可靠手段。
语种：
中文
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A Quantitative Structure Tribo-Ability Relationship Model for Ester Lubricant Base Oils
作者：
Gao, Xinlei* ;Wang, Zhan;Dai, Kang;Wang, Tingting
期刊：
Journal of Tribology ,2015年137(2):021801 ISSN：0742-4787
通讯作者：
Gao, Xinlei
作者机构：
[Wang, Tingting; Gao, Xinlei; Wang, Zhan] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei Province, Peoples R China.;[Dai, Kang] South Cent Univ Nationalities, Coll Pharm, Wuhan 430074, Hubei Province, Peoples R China.
通讯机构：
[Gao, Xinlei] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Hubei Province, Peoples R China.
关键词：
quantitative structure tribo-ability relationship;back-propagation neural network;lubricant base oil;antiwear
摘要：
Friction tests with point-point contact were carried out using a microtribometer to investigate the tribological characteristics of steel/steel rubbing pair immersed in 57 kinds of esters as lubricant base oils. A set of 57 esters and their wear data were included in the back-propagation neural network (BPNN)-quantitative structure tribo-ability relationship (QSTR) model with two-dimensional (2D) and three-dimensional (3D) QSTR descriptors. The predictive performance of the BPNN-QSTR model is acceptable. The findings of the BPNN-QSTR model show that the extent of polar groups cannot be too large in the molecule to achieve good antiwear performance; and the polar groups with a high degree of relative concentrated charge are favorable for antiwear. A low degree of molecular hydrophobicity of lubricant base oil is beneficial for antiwear behavior. Large molecular dipole moment is disadvantageous for antiwear properties. It is necessary to maintain one large molecular surface in one plane, to have a long and short chain length to be present within the same molecule, and to keep small difference between the long and short chain length to enhance the antiwear performance. Finally, lubricant base oil candidate molecules will have beneficial antiwear properties that they should contain more N groups with three single bonds and more C groups with one double bond and two single bonds; the presence of O atoms with any bonds or CH groups with three single bonds leads to a decrease in the wear resistance performance. Copyright © 2015 by ASME.
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英文
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