Oxidative degradation of azo dye by hydrogen peroxide electrogenerated in situ on anthraquinonemonosulphonate/polypyrrole composite cathode with heterogeneous CuO/gamma-Al2O3 catalyst
文献类型：期刊论文
| 作者 | Zhang, Guoquan1; Wang, Shuai1; Zhao, Sha1; Fu, Lei2; Chen, Guohua3; Yang, Fenglin1 |
| 刊名 | applied catalysis b-environmental
 |
| 出版日期 | 2011-08-11 |
| 卷号 | 106期号:3-4页码:370-378 |
| 关键词 | Anthraquinone Copper oxide EAOPs Heterogeneous Hydroxyl radical |
| 英文摘要 | heterogeneous electrocatalytic wet h2o2 oxidation technique for the removal of azo dye amaranth from aqueous solution was studied in the presence of solid cuo/gamma-al2o3 catalyst and anthraquinonemonosulphonate/polypyrrole (aqs/ppy) composite cathode able to electrogenerate h2o2 in situ. the spherical cuo/gamma-al2o3 catalysts with various cuo loadings and calcined at different temperatures were characterized by bet, esem-eds, xrd and xps. several parameters affecting h2o2 electrogeneration and dye degradation such as solution ph, cathode potential (e-ca), oxygen flow rate (v-o2), cuo loading, reaction temperature as well as catalyst calcination temperature were investigated. experimental results revealed that the optimal condition for h2o2 electrogeneration on the aqs/ppy composite modified cathode is v-o2 = 0.4 ml min(-1), e-ca = 0.4v and ph 4.3. on this occasion, ca. 90% chroma decay and 60% toc removal of dye were achieved with 450 degrees c-calcined 5.78 wt%-cuo/gamma-al2o3 catalyst and 70 degrees c reaction temperature. dye degradation follows the second-order kinetics. leaching tests showed that the leaching copper amount during the oxidation is only 4.0-7.0% per run and the role of heterogeneous activity is dominant. the catalytic activity of cuo/gamma-al2o3 catalyst could be recovered after multiple runs by a re-calcination step. furthermore, the stability of the aqs/ppy composite after consecutive operation was also investigated by chronoamperometric and eis techniques. (c) 2011 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, environmental ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | 2-chlorophenol employing goethite ; photoelectro-fenton degradation ; doped diamond anodes ; electro-fenton ; electrochemical oxidation ; aqueous-medium ; hydroxyl radicals ; water ; acid ; decomposition |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000294092400012 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142445]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Dalian Univ Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Sch Environm Sci & Technol, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China 3.Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Guoquan,Wang, Shuai,Zhao, Sha,et al. Oxidative degradation of azo dye by hydrogen peroxide electrogenerated in situ on anthraquinonemonosulphonate/polypyrrole composite cathode with heterogeneous CuO/gamma-Al2O3 catalyst[J]. applied catalysis b-environmental,2011,106(3-4):370-378. |
| APA | Zhang, Guoquan,Wang, Shuai,Zhao, Sha,Fu, Lei,Chen, Guohua,&Yang, Fenglin.(2011).Oxidative degradation of azo dye by hydrogen peroxide electrogenerated in situ on anthraquinonemonosulphonate/polypyrrole composite cathode with heterogeneous CuO/gamma-Al2O3 catalyst.applied catalysis b-environmental,106(3-4),370-378. |
| MLA | Zhang, Guoquan,et al."Oxidative degradation of azo dye by hydrogen peroxide electrogenerated in situ on anthraquinonemonosulphonate/polypyrrole composite cathode with heterogeneous CuO/gamma-Al2O3 catalyst".applied catalysis b-environmental 106.3-4(2011):370-378. |
入库方式： OAI收割
来源：大连化学物理研究所
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