作者： Xiao, Haowen;Wang, Yourong*;Xie, Kai;Cheng, Siqing*;Cheng, Xianzhong

期刊： Journal of Alloys and Compounds,2018年738:25-31 ISSN：0925-8388

通讯作者： Wang, Yourong;Cheng, Siqing

作者机构： [Cheng, Xianzhong; Xie, Kai; Wang, YR; Cheng, SQ; Wang, Yourong; Cheng, Siqing; Xiao, Haowen] Wuhan Polytech Univ, ICNEM, Sch Chem & Environm Engn, Wuhan 430023, Hubei, Peoples R China.

通讯机构： [Wang, YR; Cheng, SQ] W;Wuhan Polytech Univ, ICNEM, Sch Chem & Environm Engn, Wuhan 430023, Hubei, Peoples R China.

关键词： Activated carbon;Capacitance;Carbon;Cathodes;Electrodes;Electrolytes;Lithium-ion batteries;Manganese compounds;Microspheres;Microstructure;Supercapacitor;Aqueous electrolyte;Asymmetric supercapacitor;Electrochemical performance;High energy densities;High power density;LiMn2O4;Reversible capacity;Specific capacitance;Lithium compounds

摘要： Asymmetric supercapacitors (ASCS) with a battery-type electrode and a capacitor-type electrode have been regarded as the most promising energy-storage devices with high-energy and high-power densities. In this paper, the porous and hollow LiMn2O4 microspheres were prepared using MnCO3 microspheres as template and subsequently an ASCS with the as-prepared LiMn2O4 as cathode and activated carbon (AC) as anode in Li2SO4 aqueous electrolyte (designated by AC//LiMn2O4 ASCS) was assembled and investigated electrochemically. The results indicate that the porous LiMn2O4 exhibits a higher reversible capacity and rate capability compared to hollow LiMn2O4 microspheres, and delivers a specific capacitance of 536 F g−1 at 1 mV s−1. The assembled AC//porous LiMn2O4 ASCS presents a high energy density of 33.12 Wh kg−1 at the power density of 90 W kg−1. All these might be attributed to the unique microstructure of the as-prepared porous LiMn2O4 microspheres. © 2017 Elsevier B.V.

语种： 英文

作者： 许芳;张利平;程先忠;魏孝

期刊： 岩矿测试,2016年35(1):62-68 ISSN：0254-5357

作者机构： [许芳; 张利平; 程先忠; 魏孝] 武汉轻工大学化学与环境工程学院, 湖北, 武汉, 430023

关键词： 桑树叶;化学改性;废水;镉;生物吸附

摘要： 桑树叶富含植物多酚和黄酮类化合物,表面存在着大量羟基、羧基功能基团,在一定条件下通过络合作用或静电作用能与重金属离子发生吸附作用。但由于生物质中普遍存在着可溶性单宁,直接使用生物质吸附废水中的镉,去除效果不够理想。本文以生物质桑树叶为原料,经沸水蒸煮去除小分子和稀磷酸酸化改性,提高桑树叶的吸附容量,制备成活性吸附材料去除废水中的Cd(Ⅱ)。吸附条件实验表明:在pH = 4.0时改性桑树叶对Cd(Ⅱ)的吸附效果最佳,当Cd(Ⅱ)初始浓度为150 mg/L,改性桑树叶的添加量为6 g /L时吸附率可达96.58%。化学改性桑树叶对Cd(Ⅱ)的吸附过程符合准二阶动力学方程,Langmuir等温吸附模型能更好地描述改性桑树叶的吸附行为,Cd(Ⅱ)最大吸附量为30.58 mg/g,与前人报道的吸附量显著提高。本项研究的改性桑树叶吸附材料价廉易得,为废水中镉的处理提供了一个新的方法。

语种： 中文

作者： Chai, Bo*;Cheng, Xianzhong;Ren, Zhandong;Zhu, Yuchan

期刊： Desalination and Water Treatment,2016年57(40):18868-18878 ISSN：1944-3994

通讯作者： Chai, Bo

作者机构： [Cheng, Xianzhong; Zhu, Yuchan; Chai, Bo; 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： Adsorption;Methylene blue;Osmanthus fragrans powder;Isotherm;Kinetics

摘要： The potential of Osmanthus fragrans powder as a natural biosorbent was investigated for the removal of methylene blue (MB) from aqueous solution. The effects of various experimental conditions including contact time, adsorbent dose, initial MB concentration, solution pH, salt ionic strength, and temperature on the adsorption properties of O. fragrans powder were discussed. The adsorption kinetic data were modeled using pseudo-first-order, pseudo-second-order, and intraparticle diffusion kinetics equations, indicating that the pseudo-second-order and intraparticle diffusion models could better describe the adsorption kinetics. Furthermore, adsorption equilibrium data were analyzed by Langmuir and Freundlich models, suggesting the Langmuir model presented a better correlation with the experimental data. The maximum adsorption capacities (qm) of O. fragrans powder for MB obtained from the Langmuir model were 155.52, 165.02, and 172.71mgg−1 at different temperatures of 288.15, 298.15, and 308.15K, respectively. Thermodynamic parameters such as standard free energy changes (ΔG°), standard enthalpy changes (ΔH°), and standard entropy changes (ΔS°) were also calculated. The results showed that the adsorption process was spontaneous and endothermic in nature. In addition, the possible adsorption mechanism of O. fragrans powder as adsorbent was proposed. The present study implies that O. fragrans powder were a promising candidate as novel biosorbents for the removal of MB from aqueous solution. © 2015 Balaban Desalination Publications. All rights reserved.

语种： 英文

作者： Zhang, Shunxi;Yang, Xiaohong;Cheng, Xianzhong;Hu, Chun;Chai, Bo;...

期刊： International Journal of Electrochemical Science,2016年11(7):5753-5765 ISSN：1452-3981

通讯作者： Mei, Yunjun

作者机构： [Cheng, Xianzhong; Li, Jianfen; Mei, Yunjun; Zhang, Shunxi; Chai, Bo; Hu, Chun; Yang, Xiaohong] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

通讯机构： [Mei, Yunjun] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

关键词： Enhancing approaches;Meteorological conditions;Photovoltaic energy;Pollutants removal;Soil containing Cr(VI)

摘要： To explore the effect of meteorological conditions on pollutants removal and enhancing removal efficiency approaches in weak solar irradiation intensity during photovoltaic energy direct application, electrokinetic remediation of soil containing Cr(VI) was investigated as an example. The results show that meteorological conditions have a significant effect on pollutants removal, and Cr(VI) removal efficiency for a sunny day is the highest. Cr(VI) concentration and total Cr concentration in the different layer suggest that chromium in soil is electromigrated and accumulated near the anodic region. Total Fe concentration implies that the anodic product Fe2+ is migrated into the cathode. Energy conversion efficiency for a sunny day is the highest and is 10.4%. However, energy utilization efficiency for an overcast day is the highest, and Em and Ev are 24.1kWh/kg and 38.3kWh/m3, respectively. In weak solar irradiation intensity of 37±3.5W/m2, the parallel connection of photovoltaic panels is a feasible approach to enhance pollutants removal, and in 30min Cr(VI) removal efficiency for four panels can rise to 79.8% from 64.3% for only one panel. The extending reactive time is also a feasible way, and removal efficiency for one panel can increase from 64.3% to 80.7% as time prolonging from 30 min to 60 min. © 2016 The Authors.

语种： 英文

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： Chromium compounds;DC-DC converters;Electrodes;Electrodynamics;Energy utilization;Heavy metals;HVDC power transmission;Pollution;Remediation;Soils;Solar power generation;Cr concentration;Electric energy consumption;Electrokinetic remediation;National economy;Photovoltaic energy;Solar irradiation;Urgent problems;Utilization efficiency;Soil pollution;chromium;Article;bioremediation;concentration (parameters);electric potential;electricity;environmental protection;soil pollution;solar energy;solar radiation;sunlight;X ray diffraction

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-2 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-1 to 450mgkg-1, 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-1 and 156.1 kWh m-3, respectively. CONCLUSION: The process used for removal of Cr(VI) from soil is feasible. © 2014 Society of Chemical Industry.

语种： 英文

作者： 彭元;张利平;程先忠

期刊： 武汉轻工大学学报,2015年34(1):47-51 ISSN：2095-7386

作者机构： 武汉轻工大学化学与环境工程学院,湖北武汉,430023;[彭元; 张利平; 程先忠] 武汉轻工大学

关键词： 柿叶;亚甲基蓝;吸附;等温线;动力学

摘要： 为了研究柿叶在处理染料废水中的脱色效果,以亚甲基蓝模拟废水为研究对象,考察了溶液p H值、振荡时间、吸附剂用量、盐离子浓度、染料浓度及温度对柿叶吸附水溶液中的亚甲基蓝（MB）的影响。实验数据用Langmuir、Freundlich等温吸附模型对吸附平衡数据进行拟合。结果表明:Langmuir、Freundlich等温吸附方程能很好描述柿叶对亚甲基蓝的吸附行为;吸附过程符合准二级动力学模型。

语种： 中文

作者： Cheng, Xianzhong;Chen, Kaixu*;Cheng, Huai;Zhang, Liping

期刊： Applied Mechanics and Materials,2014年448-453:3912-3915 ISSN：1660-9336

通讯作者： Chen, Kaixu

作者机构： [Cheng, Xianzhong; Zhang, Liping] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Chen, Kaixu] Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.

通讯机构： [Chen, Kaixu] W;Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.

会议名称： 2013 International Conference on Renewable Energy and Environmental Technology, REET 2013

会议时间： 21 September 2013 through 22 September 2013

会议地点： Jilin, PEOPLES R CHINA

会议主办单位： [Cheng, Xianzhong;Zhang, Liping] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

会议论文集名称： Applied Mechanics and Materials

关键词： Black shale;Leaching;Roasting;Salt addition;Vanadium

摘要： <jats:p>In this paper, the extraction of vanadium from Chinese black shale by roasting with mixture salt addition was studied. The effect of salt additions, temperature and time on the recovery of vanadium were investigated by mixture salt roasting and 2% H<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub> leaching. The mixture additions of Na<jats:sub>2</jats:sub>CO<jats:sub>3</jats:sub>-BaSO<jats:sub>4</jats:sub> was used in the roasting process. The optimal roasting conditions for black shale were determined to be 2.5 hours roasting at 760 °C with the mixture additive SB of 10-15%. After being leached with 2% sulphuric acid, the leaching efficiency of vanadium was obtained in 85%. The pollution of waste gas was decreased in the presence of BaSO<jats:sub>4</jats:sub>-Fe<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>.</jats:p>

语种： 英文

作者： Cheng, Xianzhong*;Peng, Yuan;Cheng, Kuang;Song, Yuyao;Zhang, Shunxi

期刊： ATOMIC SPECTROSCOPY,2013年34(6):199-206 ISSN：0195-5373

通讯作者： Cheng, Xianzhong

作者机构： [Cheng, Xianzhong; Peng, Yuan; Zhang, Shunxi; Song, Yuyao] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Cheng, Kuang] Huazhong Univ Sci & Technol, Coll Environm Sci & Engn, Wuhan 430074, Peoples R China.

通讯机构： [Cheng, Xianzhong] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

摘要： A novel method was investigated using chemically pretreated orange peel (POP) powder to separate and pre-concentrate Cr(III) in environmental water. In this study, the raw orange peel was pretreated with petroleum ether-NaOH and employed as selective sorbent for the separation of Cr(III) ions in the presence of Cr(VI). The influences of pH, sample flow rate, elution concentration and volume, and breakthrough volume were investigated in detail. Cr(III) was selectively adsorbed on the microcolumn packed with POP in the pH range from 3.5 to 5.5, while the unretained Cr(VT) was determined directly in the effluent. The retained Cr(III) was eluted with 2.0 mL of 1.2 mol L HNO3 followed by determination with ICP-MS. Under the optimum conditions, the detection limits based on 3σ criterion were 0.009 ng mL-1 and 0.037 ng mL-1 for Cr(III) and Cr(VI), respectively. The relative standard deviations (RSD) were less than 4.1% (n=11, c=2.0 ng mL-1). The proposed method was successfully applied to the speciation determination of Cr(III) and Cr(VI) in water samples. The recoveries in spiked environmental water samples ranged from 98.5% to 103.8%. A reference water sample GBW(E)080642 was also analyzed and the results were in good agreement with the certified values.

语种： 英文

作者： Liu, Jin;Yang, Xiaoli;Cheng, Xianzhong*;Peng, Yuan;Chen, Hongmei

期刊： ANALYTICAL METHODS,2013年5(7):1811-1817 ISSN：1759-9660

通讯作者： Cheng, Xianzhong

作者机构： [Cheng, Xianzhong; Peng, Yuan; Liu, Jin; Chen, Hongmei] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Yang, Xiaoli] Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.

通讯机构： [Cheng, Xianzhong] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

摘要： A novel Sc(iii) ion-imprinted polymers (Sc-IIP) sorbent was prepared by using Sc(iii) ion-8-hydroxyquinoline complex as the template molecule and methacrylic acid, ethylene glycol dimethacrylate (EGDMA) as the functional monomer and cross-linker, respectively. In the present work, a new method using a microcolumn packed with Sc-IIPs as a solid-phase extraction adsorbent was developed for the selective separation and preconcentration of trace amounts of scandium(iii) prior to the determination by inductively coupled plasma mass spectrometry. Various factors influencing the separation and preconcentration of trace scandium, such as pH, sample flow rate and breakthrough volume, elution concentration and volume were investigated in detail. Scandium can be quantitatively retained on the IIPs sorbent at pH 4.0-6.5 from sample volume up to 300 mL and then eluted efficiently with 5 mL 3% HNO3 solution, therefore an enrichment factor of 60 was accomplished. The maximum adsorption capacity of the ion-imprinted and non-imprinted sorbent was 12.8 mg g -1 and 3.5 mg g-1, respectively. Under optimal conditions, the detection limit for scandium was 0.013 ng L-1 in water, 0.46 ng g-1 in geological sample, and the relative standard deviation was 3.2% (n = 11) at the 0.5 μg L-1. The recoveries of Sc in the spiked environmental water samples ranged from 98.0% to 103% with 100 mL of water sample. The proposed method was validated using certified reference materials and applied to the determination of trace scandium in geological samples and environmental water samples with satisfactory results. © 2013 The Royal Society of Chemistry.

语种： 英文

作者： Yuan Peng;Hongyan Xiao;Xianzhong Cheng;Hongmei Chen

期刊： Advanced Materials Research,2013年773:889-892 ISSN：1022-6680

通讯作者： Cheng, X. Z.

作者机构： [Peng Y.; Cheng X.Z.; Chen H.M.] School of chemical and environmental engineering, Wuhan Polytechnic University, Wuhan 430023, China;State Key Laboratory of Geoprocesses and Mineral Resources, China University ofGeosciences, Wuhan430074, China;[Xiao H.Y.] School of chemical and environmental engineering, Wuhan Polytechnic University, Wuhan 430023, China, State Key Laboratory of Geoprocesses and Mineral Resources, China University ofGeosciences, Wuhan430074, China

通讯机构： [Cheng, X. Z.] S;School of chemical and environmental engineering, , Wuhan 430023, China

会议名称： 2013 International Conference on Materials for Renewable Energy & Environment(MREE 2013)

会议时间： 2013-01-01

会议地点： Nanjing,China

关键词： Adsorption;Arsenic;Orange peel;Removal;Wastewater

摘要： The use of low-cost and eco-friendly adsorbents has been investigated as an ideal alternative to the currentexpensive methods of removing arsenic from wastewater. Orange peel was collected from the lo

语种： 英文

作者： Shu, Jing*;Peng, Yuan;Pan, Congdao;Cheng, Xianzhong;Cheng, Li

期刊： Advanced Materials Research,2013年781-784:1977-1980 ISSN：1022-6680

通讯作者： Shu, Jing

作者机构： [Pan, Congdao; Shu, Jing; Cheng, Li] Wuhan Polytech Unvers, Coll Food Sci & Engn, Wuhan 430023, Peoples R China.;[Cheng, Xianzhong; Peng, Yuan] Wuhan Polytech Univ, Sch Chem & Environ Engn, Wuhan 430023, Peoples R China.

通讯机构： [Shu, Jing] W;Wuhan Polytech Unvers, Coll Food Sci & Engn, Wuhan 430023, Peoples R China.

会议名称： 3rd International Conference on Chemical Engineering and Advanced Materials, CEAM 2013

会议时间： 6 July 2013 through 7 July 2013

会议地点： Guangzhou, PEOPLES R CHINA

会议主办单位： [Shu, Jing;Pan, Congdao;Cheng, Li] Wuhan Polytech Unvers, Coll Food Sci & Engn, Wuhan 430023, Peoples R China.^[Peng, Yuan;Cheng, Xianzhong] Wuhan Polytech Univ, Sch Chem & Environ Engn, Wuhan 430023, Peoples R China.

会议论文集名称： Advanced Materials Research

关键词： Adsorption;Freshwater fish scale;Mercury;Removal;Wastewater

摘要： <jats:p>The adsorption of freshwater fish scales were used to remove Hg<jats:sup>2+</jats:sup>in industrial wastewater. The effects of pH, shaking time, initial concentration on the adsorption Hg<jats:sup>2+</jats:sup>onto freshwater fish scale were investigated. In these conditions, by varying the pH of the mercury (II) solutions from 2 to 8, the removal efficiency remained higher than 96%. Optimal adsorption capacity was 117.2 mg g<jats:sup>-1</jats:sup>at pH 6.0. Characterization of the biosorbent fish scales was performed using scanning electron microscope (SEM), and Fourier transform-infrared (FTIR) spectroscopy. The mechanism for the adsorption was studied. The adsorption of Hg<jats:sup>2+</jats:sup>on to freshwater fish scale could be described by Langmuir isotherm model.</jats:p>

语种： 英文

作者： Liu, Jin*;Zou, Dihua;Yang, Xiaoli;Cheng, Xianzhong;Chen, Qian

期刊： ANALYTICAL METHODS,2013年5(23):6774-6780 ISSN：1759-9660

通讯作者： Liu, Jin

作者机构： [Liu, Jin; Yang, Xiaoli; Zou, Dihua] Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.;[Cheng, Xianzhong; Chen, Qian] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

通讯机构： [Liu, Jin] W;Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.

摘要： A novel method that uses chemically modified persimmon powder for solid extraction of Au prior to the determination by inductively coupled plasma-mass spectrometry (ICP-MS) was investigated. Experimental conditions such as acid concentration, sample flow rate and volume, eluent conditions and interfering ions were carefully examined. Gold can be quantitatively adsorbed on the new sorbent from solution of 3% (v/v) aqua regia, and then the trace gold adsorbed on the microcolumn can be effectively eluted with a mixture of 2.0% thiourea and 0.12 mol L-1 HCl. The transition- and heavy-metal ions did not interfere with either the separation/preconcentration or the determination. The maximum adsorption capacity of the sorbent was 25.3 mg g-1. Under optimal conditions, the detection limit for gold was 1.32 ng L-1 in the geological sample, and the relative standard deviation was 0.83% (n = 11) at 1.0 μg L-1. The proposed method was validated by analyzing three certified reference materials and applied to the preconcentration and determination of trace gold in geological samples with satisfactory results. © 2013 The Royal Society of Chemistry.

语种： 英文

作者： Cheng, Xianzhong*;Peng, Yuan;Shu, Jing;Zhang, Shunxi;Zhou, Guoqing

期刊： Asian Journal of Chemistry,2013年25(18):10457-10459 ISSN：0970-7077

通讯作者： Cheng, Xianzhong

作者机构： [Cheng, Xianzhong; Peng, Yuan; Zhang, Shunxi; Zhou, Guoqing] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Shu, Jing] Wuhan Polytech Univ, Coll Food Sci & Engn, Wuhan 430023, Peoples R China.

通讯机构： [Cheng, Xianzhong] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

关键词： 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol;Spectrophotometric;Surfactant;Yeast;Zinc

摘要： A simple and rapid spectrophotometric method is described for the determination of trace zinc(II) in zinc-enriched yeast using 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) as a chromogenic reagent in the presence of surfactant OP. The analytical parameters such pH, reagent and coexistent ions were investigated. The results showed that the maximum absorption wavelength of the complex Zn-5-Br-PADAP was identified at 556 nm. The apparent molar absorptivity was 1.16 x 10(5) L mol(-1) cm(-1). Beer's law was obeyed in the concentration range of 0 similar to 12 mu g/25 mL for zinc. The interference of various ions was studied by sodium citrate and thiourea as masking agents. The proposed method has been applied to the determination of Zn in yeast-enriched samples with satisfactory and results agreed with those provided by atomic absorption spectrometry.

语种： 英文

作者： Zhang, Shunxi*;Zhang, Jian;Wang, Wenqing;Li, Furong;Cheng, Xianzhong

期刊： Solar Energy Materials and Solar Cells,2013年117:73-80 ISSN：0927-0248

通讯作者： Zhang, Shunxi

作者机构： [Cheng, Xianzhong; Wang, Wenqing; Zhang, Jian; Li, Furong; Zhang, Shunxi] 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： Photovoltaic energy;Landscape water;Phosphate removal;Electrocoagulation;Eutrophication

摘要： In this paper, removal of phosphate from landscape water using an electrocoagulation process with aluminum electrodes powered directly by photovoltaic solar modules was investigated. The results showed that total phosphate (TP) residual concentration in landscape water decreases with an increasing electrolysis time. A first order kinetics about TP removal is concluded. An optimum electrode gap of 25 mm is determined. Conductivity of landscape water was adjusted by adding NaCl, and an optimum initial conductivity range of 765-1135 &mu;S/cm can be obtained. In an overcast day, a higher TP removal efficiency can be obtained by extending time. TP removal efficiency increases with an increasing number of serial photovoltaic modules during early reaction. The optimal condition, order and significance of the factors on TP removal were determined by an orthogonal test with four factors and three levels, and the predictive value for TP removal efficiency is (97.77&plusmn;2.13)%. Photoelectricity conversion efficiency for an overcast day is the highest and 12.2%. However, energy for removing a unit mass of TP and energy for removing TP per volume unit are all the lowest, and values are 15.75 kWh/kg and 0.71 kWh/m³, respectively. The process used for removal of phosphate from landscape water is feasible. &copy;2013 Elsevier B.V. All rights reserved.

语种： 英文

作者： 舒静;刘金;潘从道;程先忠

期刊： 分析仪器,2012年(4):40-43 ISSN：1001-232X

作者机构： 武汉工业学院食品科学与工程学院,武汉,430023;武汉工业学院化学与环境工程学院,武汉,430023;[刘金; 潘从道; 程先忠; 舒静] 武汉工业学院

关键词： 原子吸收法;蛋膜;固相萃取;酵母粉;镉

摘要： 本文研究了蛋膜固相萃取一石墨炉原子吸收光谱法测定酵母粉中痕量镉的方法，实验中对蛋膜吸附镉的性能、洗脱剂的选择、洗脱液用量和干扰离子的影响等进行了探讨。结果表明在0．1～2．0mol／L氨水介质中，蛋膜能完全吸附镉。吸附的金属离子可以用0．48mol／L盐酸2mL完全洗脱下来。方法的检出限为0．0037ng／mL，回收率为97．8%～102%。该方法操作简单，准确性好，灵敏度高，适用于酵母粉和食品中痕量镉的分析，能获得满意的结果。

语种： 中文

作者： Jin Liu;Xian Zhong Cheng;Yuan Peng;Hong Mei Chen

期刊： Advanced Materials Research,2012年573-574:617-621 ISSN：1022-6680

通讯作者： Cheng, X.(whcxz502@163.com)

作者机构： [Chen H.; Liu J.; Cheng X.; Peng Y.] School of chemical and environmental engineering, Wuhan Polytechnic University, Wuhan, 430023, China

通讯机构： [Cheng, X.] S;School of chemical and environmental engineering, , Wuhan, 430023, China

会议名称： 2012 International Conference on Environment Materials and Environment Management, EMEM 2012

会议时间： 4 August 2012 through 4 August 2012

关键词： Adsorption;Grass carp scale;Nickel;Wastewater

摘要： The adsorption of grass carp fish scale was used to remove Ni²⁺ in the heavy metals wastewater. The effect of shaking time, temperature and pH value on the adsorption Ni²⁺ onto fish scale was investigated. The maximum biosorption was both observed at pH 6.3 on the eggshell membrane. Optimal adsorption capacity was 120.9 mg g^-1 at initial concentration 100 mg LX^-1. Characterization of the biosorbent fish scales was performed using scanning electron microscope (SEM), and Fourier transform-infrared (FTIR) spectroscopy. The mechanism for the adsorption was studied. The adsorption of Ni²⁺on to fish can be described by Langmuir isotherm model when the concentration of Ni²⁺ under 100mg&middotL^-1. &copy;(2012) Trans Tech Publications, Switzerland.

语种： 英文

作者： 刘金;彭元;程先忠

期刊： 武汉轻工大学学报,2012年(4):35-37 ISSN：2095-7386

作者机构： 武汉工业学院化学与环境工程学院,湖北武汉430023

关键词： 磷;分光光度法;钼铋蓝

摘要： 采用铋盐—钼蓝光度法对铁矿石中微量磷进行测定,确定了最佳测定条件。在HNO3介质中,最大吸收波长为690 nm,磷质量浓度在0—1.2 mg/L范围内符合比耳定律。此方法在室温下,显色速度快,产物稳定性好,线性范围宽。将该方法用于铁矿中微量磷的测定,结果令人满意。

语种： 中文

作者： Liu, Jin;Cheng, Xianzhong*;Qin, Peng;Pan, Mingying

期刊： Advanced Materials Research,2012年599:391-394 ISSN：1022-6680

通讯作者： Cheng, Xianzhong

作者机构： [Cheng, Xianzhong; Qin, Peng; Liu, Jin; Pan, Mingying] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

通讯机构： [Cheng, Xianzhong] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

会议名称： 2012 Global Conference on Civil, Structural and Environmental Engineering, GCCSEE 2012 and the 3rd International Symposium on Multi-field Coupling Theory of Rock and Soil Media and Its Applications, MCTRSM 2012

会议时间： 20 October 2012 through 21 October 2012

会议地点： China Three Gorges Univ, Yichang, PEOPLES R CHINA

会议主办单位： China Three Gorges Univ

会议论文集名称： Advanced Materials Research

关键词： Biomass;Biosorption;Congo red;Eggshell membrane;Removal

摘要： <jats:p>The performance of native eggshell membrane in removing of Congo Red (CR) from aqueous solution was investigated. The effect of pH, adsorbent concentration, temperature, and contact time were performed by static testing. The maximum biosorption was both observed at pH 7.0 on the eggshell membrane. Optimal adsorption capacity (112.3 mg g<jats:sup>-1</jats:sup>) at initial concentration 10 mg L-1 and rate (99.17%) was obtained at pH 6.8. Characterization of the bio<jats:sup>Superscript text</jats:sup>sorbent eggshell membrane was performed using scanning electron microscope (SEM), and Fourier transform-infrared (FTIR) spectroscopy. The kinetic and equilibrium studies suggest that the adsorption follows Langmuir isotherm model.</jats:p>

语种： 英文

作者： Hong Mei Chen;Jin Liu;Xian Zhong Cheng;Yuan Peng

期刊： Advanced Materials Research,2012年573-574:63-67 ISSN：1022-6680

通讯作者： Chen, H.(chenhmei15@163.com)

作者机构： [Peng Y.; Cheng X.; Chen H.; Liu J.] School of chemical and environmental engineering, Wuhan Polytechnic University, Wuhan 430023, China

通讯机构： [Chen, H.] S;School of chemical and environmental engineering, , Wuhan 430023, China

会议名称： 2012 International Conference on Environment Materials and Environment Management, EMEM 2012

会议时间： 4 August 2012 through 4 August 2012

关键词： Adsorption;Eggshell membrane;Malachite green;Removal

摘要： The performance of native eggshell membrane in removing of malachite green (MG) from aqueous solution was investigate. The effect of pH, adsorbent concentration, temperature, and contact time were performed by static testing. The maximum biosorption was both observed at pH 6.0 on the eggshell membrane. Optimal adsorption capacity (89.72 mg g-1) at initial concentration 100 mg L-1 and rate (98.69%) was obtained at pH 5.5. Characterization of the biosorbent eggshell membrane was performed using scanning electron microscope (SEM), and Fourier transform-infrared (FTIR) spectroscopy. The kinetic and equilibrium studies suggest that the adsorption follows Langmuir isotherm model. Desorption studies revealed that MG could be well removed from wastewater.

语种： 英文

作者： Zhang, Rui Hue*;Yang, Xiao Li;Liu, Jin;Cheng, Xian Zhong

期刊： Advanced Materials Research,2012年457-458:536-539 ISSN：1022-6680

通讯作者： Zhang, Rui Hue

作者机构： [Zhang, Rui Hue; Liu, Jin; Cheng, Xian Zhong] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.;[Yang, Xiao Li] Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.

通讯机构： [Zhang, Rui Hue] W;Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.

会议名称： 2011 International Conference on Advanced Materials and Engineering Materials(2011先进材料与工程材料国际会议 ICAMEM 2011)

会议时间： 2011-11-22

会议地点： 沈阳

会议主办单位： [Zhang, Rui Hue;Liu, Jin;Cheng, Xian Zhong] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.^[Yang, Xiao Li] Wuhan Inst Geol & Mineral Resources, Wuhan 430205, Peoples R China.

会议论文集名称： 2011 International Conference on Advanced Materials and Engineering Materials(2011先进材料与工程材料国际会议 ICAMEM 2011)论文集

关键词： Adsorption;Eggshell membrane;Inductively coupled plasma mass spectrometry;Manganese(II,VII)

摘要： A simple solid phase extraction procedure for adsorption and preconcentration of manganese(II, VII) in environmental water samples has been proposed prior to inductively coupled plasma mass spectrometry. The procedure presented based on quantitative recoveries of manganese &gt;95%. In this work, the potential use of eggshell membrane(ESM), a typical biomaterial, as solid-phase extraction (SPE) adsorbent is evaluated for analysis of trace manganese. The analytical variables, pH, flow rate, sample volume, elution, coexisting ions for optimum recoveries of manganese (II) and manganese (VII) were investigated. The preconcentration factor was 60. The detection limit (3&sigma;) of manganese was 0.031 ng L^-1. The relative standard deviations of determination was found to be 3.21%. The procedure was successfully applied to the adsorption and determination of manganese in environmental water samples. &copy;(2012) Trans Tech Publications.

语种： 英文