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Catalytic performance of Fe_3O_4-CoO/Al_2O_3 catalyst in ozonation of 2-(2,4-dichlorophenoxy) propionic acid,nitrobenzene and oxalic acid in water

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Journal of Environmental sciences 2010年第10期22卷 1623-1628页

作者： shaoping tong,rui shi,hua zhang,chunan ma college of chemical engineering and materials science,state key laboratory breeding base of green chemistry-synthesis technology,zhejiang university of technology,hangzhou 310032,china [a] college of chemical engineering materials science State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology Zhejiang University of Technology Hangzhou 310032 China

Fe3O4-CoO/Al2O3 catalyst was prepared by incipient wetness impregnation using Fe（NO3）3.9H2O and Co（NO3）2.6H2O as the precursors, and its catalytic performance was investigated in ozonation of 2-（2,4-dichlorophenoxy）propionic acid （2,4-DP）, nitrobenzene and oxalic acid. The experimental results indicated that Fe3O4-CoO/Al2O3 catalyst enabled an interesting improvement of ozonation efficiency during the degradation of each organic pollutant, and the Fe3O4-CoO/Al2O3 catalytic ozonation system followed a radical-type mechanism. The kinetics of ozonation alone and Fe3O4-CoO/Al2O3 catalytic ozonation of three organic pollutants in aqueous solution were discussed under the mere consideration of direct ozone reaction and OH radical reaction to well investigate its performance. In the catalytic ozonation of 2,4-DP, the apparent reaction rate constants （k） were determined to be 1.456 × 10^-2 min-1 for ozonation alone and 4.740 × 10^-2 min^-1 for O3/Fe3O4-CoO/Al2O3. And O3/Fe3O4-CoO/Al2O3 had a larger Rot （6.614 × 10^-9） calculated by the relative method than O3 did （1.800 x 10-9）, showing O3/Fe3O4-CoO/Al2O3 generated more hydroxyl radical. Similar results were also obtained in the catalytic ozonation of nitrobenzene and oxalic acid. The above results demonstrated that the catalytic performance of Fe3O4-CoO/Al2O3 in ozonation of studied organic substance was universal to a certain degree.

关键词： catalytic ozonation Fe3O4-CoO/Al2O3 2,4-DP nitrobenzene oxalic acid kinetics

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Preparation and Electrocatalytic Activity of Polyaniline-poly (Propylene Oxide) Modified by Pt Nanoparticles

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Journal of Wuhan university of technology(materials science) 2006年第4期21卷 9-11页

作者：李美超 college of chemical engineering and material science State Key Laboratory Breeding Base of Green Chemistry-Synthesis TechnologyZhejiang University of TechnologyHangzhou 310032China

The preparation and electrocatalytic activity of polyaniline-poly （ propylene oxide ）（ PAN-PPO ） modified by Pt particles （ Pt/ PAN-PPO ） were investigated. Pt/ PAN-PPO was characterized by scanning electron microscopy （SEM） and energy dispersive spectroscopy （ EDS ）. Pt particles on PAN-PPO were in the nanometer range, and dispersed in a three-dimensional distribution on the surface of PAN-PPO film. Compared with polyaniline and glassy carbon modified with Pt particles under the same conditions, Pt/PAN-PPO exhibited a high electrocatalytic activity for lysine oxidation.

关键词： aniline propylene oxide copolymer platinum electrocatalytic activity lysine

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双功能WC/HZSM-5催化剂上正己烷芳构化反应性能

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催化学报 2012年第3期33卷 570-575页

作者：施梅勤陈宁宁马淳安李瑛魏爱平浙江工业大学化学工程与材料学院绿色化学合成技术国家重点实验室培育基地科技部能源材料及应用国际科技合作基地浙江杭州310032

以HZSM-5(SiO2/Al2O3=38)为载体,偏钨酸铵为钨源制备了双功能催化剂WC/HZSM-5,考察了其催化正己烷芳构化反应性能,并采用X射线衍射、扫描电子显微镜、X射线能量散射谱和程序升温氨脱附等手段对催化剂进行了表征,探讨了制备方法和WC含量... 详细信息

以HZSM-5(SiO2/Al2O3=38)为载体,偏钨酸铵为钨源制备了双功能催化剂WC/HZSM-5,考察了其催化正己烷芳构化反应性能,并采用X射线衍射、扫描电子显微镜、X射线能量散射谱和程序升温氨脱附等手段对催化剂进行了表征,探讨了制备方法和WC含量对WC/HZSM-5催化剂性能的影响.结果表明,采用原位还原碳化法制备的WC/HZSM-5(RC)催化剂上正己烷芳构化反应性能优于浸渍法制备的WC/HZSM-5(IP).5%WC/HZSM-5(RC)样品在反应初始阶段芳烃选择性为10.28%,而HZSM-5上的仅为2.56%.WC/HZSM-5(RC)催化剂上反应产物中轻质芳烃(苯、甲苯和二甲苯)含量增加,重质芳烃C9+含量降低,其催化性能优于Pt/HZSM-5催化剂.产物分布的变化可能是由于WC与分子筛间的协同作用所致.

关键词： HZSM-5分子筛碳化钨负载型催化剂正己烷芳构化裂解

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Systhesis of β-Biarylacrylferrocene by Suzuki-Miyaura Cross-coupling Reaction

Systhesis of β-Biarylacrylferrocene by Suzuki-Miyaura Cross...

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中国化学会第四届有机化学学术会议

作者： TENG,Ming-Yu zhang, Jie LIN, Ru-Xiang DONG, Yu ma, Chun-An SONG, Qing-Bao (The state key laboratory breeding base of green chemistry-synthesis technology, college of chemical engineering and materials science, zhejiang university of technology, hangzhou 310014)

＜正＞The catalytic cross-coupling reaction of β-（2-bromophenyl）acrylfrerrocene and β-（4-bromophenyl）-acryl-frerrocene （1） with arylboronic acid （2） to prepare biaryl analogues, permits the extension of molecular conjugation. β-（2-Bromophenyl）-acrylfrerrocene and β-（4-bromophenyl）acrylfrerrocene （1） were transformed in β-biarylacryl-ferrocene （3） by Suzuki cross-coupling reaction with arylboronic acid （2） in the presence of Pd?in a sodium carbonate solution of water. The new compounds were separated in good yield by column chromatography with petroleum ether/acetate from 20: 1 to 4: 1 （V: V） as eluants.

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A kinetic model of Ti(IV)-catalyzed H_2O_2/O_3 process in aqueous solution

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Journal of Environmental sciences 2011年第12期23卷 2087-2092页

作者： shaoping tong Shuqin Zhao Xiaofei Lan chunan ma college of chemical engineering and materials science State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology Zhejiang University of Technology Hangzhou 310032 China

To well describe the Ti（IV）-catalyzed H2O2/O3 reaction in aqueous solution, a kinetic model was established based on its mechanism. This model was then validated by the experiments of acetic acid degradation in aqueous solution. It was found that the correlation coefficient of fittings was higher than 0.970. Three key operating factors affecting organic degradation in the Ti（IV）-catalyzed H2O2/O3 process were studied, including Ti（IV） concentration, dissolved ozone concentration and initial H2O2 concentration. Furthermore, some experiments were conducted to determine the rate constant for dissolved ozone decomposition initiated by Ti2O52＋. The rate constant measured is almost in accord with the data analyzed by this kinetic model. The goodness of fittings demonstrated that this model could well describe the kinetics of the Ti（IV）-catalyzed H2O2/O3 reaction mathematically and chemically. Therefore, this kinetic model can provide some useful information to optimize the parameters in ozonation of water containing certain pollutants.

关键词： ozone hydrogen peroxide Ti(IV) kinetic model acetic acid degradation

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AB_5-type Hydrogen Storage Alloy Modified with Ti/Zr Used as Anodic materials in Borohydride Fuel Cell

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Journal of materials science & technology 2005年第6期21卷 831-835页

作者： Lianbang WANG chunan ma Xinbiao maO Yuanming SUN Seijiro SUDA state key laboratory breeding base of green chemistry-synthesis technology College of Chemical Engineering and Materials Zhejiang University of Technology Hangzhou 310014 China chemical Energy laboratory Department of Environmental and Chemical Engineering Kogakuin University 2665-1 Nakano-machi Hachio ji-shi Tokyo 192-0015 Japan

Fuel cell using borohydride as the fuel has received much attention. AB5-type hydrogen storage alloy used as the anodic material instead of noble metals has been investigated. In order to restrain the generation of hydrogen and enhance the utilization of borohydride, Ti/Zr metal powders has been added into the parent LmNi4.78Mn0.22 （where Lm is La-richened mischmetal） alloy （LNM） by ball milling and heat treatment methods. It is found that the addition of Ti/Zr metal powders lowers the electrochemical catalytic activity of the electrodes, at the same time, restrains the generation of hydrogen and enhances the utilization of the fuel. All the results show that the hydrogen generation rate or the utilization of the fuel is directly relative to the electrochemical catalytic activity or the discharge capability of the electrodes. The utilization of the fuel increases with discharge current density. It is very important to find a balance between the discharge capability and the utilization of the fuel.

关键词： Fuel cell Borohydride AB5-type hydrogen storage alloy Ball-milling method Heat treatment method

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Systematic engineering of BiVO_(4)photoanode for efficient photoelectrochemical water oxidation

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Carbon Energy 2024年第4期6卷 12-21页

作者： Zhiting Liang Meng Li Kai‐Hang Ye tongxin Tang Zhan Lin Yuying Zheng Yongchao huang Hongbing Ji Shanqing zhang Guangzhou key laboratory of Clean Transportation Energy chemistry School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhouChina chemical engineering Guangdong laboratory Jieyang Branch of ChemistryJieyangChina key laboratory for Water Quality and Conservation of the Pearl River Delta Institute of Environmental Research at Greater Bay AreaMinistry of EducationGuangzhou UniversityGuangzhouChina state key laboratory breeding base of green‐chemical synthesis technology Institute of Green Petroleum Processing and Light Hydrocarbon ConversionCollege of Chemical EngineeringZhejiang University of TechnologyHangzhouChina School of Environment and science Centre for Catalysis and Clean EnergyGriffith UniversityGold Coast CampusSouthportQueenslandAustralia

BiVO_(4)is one of the most promising photoanode materials for photoelectrochemical(PEC)solar energy conversion,but it still suffers from poor photocurrent density due to insufficient light‐harvesting efficiency(LHE),weak photogenerated charge separation efficiency(Φ_(Sep)),and low water oxidation efficiency(Φ_(OX)).Herein,we tackle these challenges of the BiVO_(4)photoanodes using systematic engineering,including catalysis engineering,bandgap engineering,and morphology *** particular,we deposit a NiCoO_(x)layer onto the BiVO_(4)photoanode as the oxygen evolution catalyst to enhance theΦ_(OX)of Fe‐g‐C_(3)N_(4)/BiVO_(4)for PEC water oxidation,and incorporate Fe‐doped graphite‐phase C_(3)N_(4)(Fe‐g‐C_(3)N_(4))into the BiVO_(4)photoanode to optimize the bandgap and surface areas to subsequently expand the light absorption range of the photoanode from 530 to 690 nm,increase the LHE andΦ_(Sep),and further improve the oxygen evolution reaction activity of the NiCoO_(x)catalytic ***,the maximum photocurrent density of the as‐prepared NiCoO_(x)/Fe‐g‐C_(3)N_(4)/BiVO_(4)is remarkably boosted from 4.6 to 7.4 ma cm^(−2).This work suggests that the proposed systematic engineering strategy is exceptionally promising for improving LHE,Φ_(Sep),andΦ_(OX)of BiVO_(4)‐based photoanodes,which will substantially benefit the design,preparation,and large‐scale application of next‐generation high‐performance photoanodes.

关键词： bismuth vanadate carbon nitride charge separation heterojunction water oxidation

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Indirect Electrochemical Reduction of Indanthrene Brilliant green FFB

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Chinese Journal of chemical engineering 2011年第2期19卷 199-204页

作者：江欢欢葛小芳徐颖华张雯雯马淳安 state key laboratory breeding base of green chemistry-synthesis technology College of Chemical Engineering and Materials Zhejiang University of Technology Hangzhou 310032 China Shaoxing Environmental Monitoring Central Station Shaoxing 312000 China

The indirect electrochemical reduction of Indanthrene Brilliant green FFB （IBG） was investigated in detail by cyclic voltammetry and electrolytic *** （TEA） was used as ligand to form elec-trochemically active Fe（III）-complexes in alkaline *** effects of operating parameters including reaction temperature,current density,concentration of NaOH and Fe（III）-TEA mediator had been studied by orthogonal ex-periments and the mechanism of radicals on electrochemical reduction was *** cyclic voltammetry ex-perimental results show that Fe（III）-TEA complexes are well suited for the indirect electrochemical reduction of *** electrolytic experiments show that high current efficiency （49.9%） can be successfully achieved under op-timized conditions and the current density is found to be the main influence factor.

关键词： Indanthrene Brilliant green FFB indirect electrochemical reduction Fe(III)-triethanolamine cyclic voltammetry

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原位红外光谱法研究对氯苯酚在Pt电极上的电氧化行为

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化学学报 2009年第8期67卷 746-750页

作者：马淳安刘艳娜李美超浙江工业大学化学工程与材料学院绿色化学合成技术国家重点实验室培育基地杭州310032

采用原位红外光谱法研究了碱性条件下对氯苯酚(PCP)在Pt电极上电化学氧化的脱氯反应机理.研究结果表明Pt电极对PCP有良好的电化学反应活性,其氧化过程首先是对氯苯酚负离子氧化生成对氯苯氧自由基,该自由基可与对氯苯酚负离子作用生成... 详细信息

采用原位红外光谱法研究了碱性条件下对氯苯酚(PCP)在Pt电极上电化学氧化的脱氯反应机理.研究结果表明Pt电极对PCP有良好的电化学反应活性,其氧化过程首先是对氯苯酚负离子氧化生成对氯苯氧自由基,该自由基可与对氯苯酚负离子作用生成芳香醚低聚物;随着电位升高,对氯苯酚负离子经电化学氧化生成了苯二酚盐(还可能存在其氧化产物不饱和羧酸盐);当电位继续升高,苯二酚盐进一步氧化形成苯醌;最后,在Pt表面生成小分子羧酸盐,同时生成了最终产物CO2.但由于芳香醚低聚物等不溶性聚合物膜的形成并吸附在Pt电极表面,可造成Pt电极毒化,使得Pt电极在使用过程中逐渐失去活性.

关键词：原位红外光谱法 Pt电极对氯苯酚电氧化

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A cyanostilbene-based molecule with aggregation-induced emission properties: amplified spontaneous emission, protonation effect and electroluminescence

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science china chemistry 2019年第2期62卷 212-219页

作者： Yujie Dong Suqian ma Xiaoyu zhang Jingyu Qian Nianyong Zhu Bin Xu Cheuk-Lam Ho Wenjing Tian Wai-Yeung Wong Institute of Molecular Functional materials and Department of chemistry Hong Kong Baptist University state key laboratory breeding base of green chemistry synthesis technology College of Chemical Engineering Zhejiang University of Technology state key laboratory of Supramolecular Structure and materials Jilin University Department of Applied Biology & chemical technology The Hong Kong Polytechnic University

A terpyridine-substituted cyanostilbene derivative(Z)-2-(4′-([2,2′:6′,2″-terpyridin]-4′-yl)-[1,1′-biphenyl]-4-yl)-3-phenylacrylonitrile(CNSTPy) was synthesized and characterized. The compound exhibits remarkable aggregation-induced emission phenomenon and its single crystal shows a blue emission with fluorescent efficiency as high as 45%. based on its aggregation state behavior, multiple applications towards exploring its lasing, fluorescence switching and electroluminescence properties were realized. Amplified spontaneous emission(ASE) was observed from the crystal and verified by the variable pump strip method, with a threshold value of ～1.5 m J cm^(-2). The protonation/deprotonation processes accompanied by the formation of different molecular aggregation structure result in the distinct blue and yellow emissions. Additionally, the molecule also shows a moderate electroluminescence performance.

关键词： aggregation-induced emission cyanostilbene amplified spontaneous emission protonation effect

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