Degradation of organic pollutants by a Co3O4-graphite composite electrode in an electro-Fenton-like system
文献类型：期刊论文
| 作者 | Liu Shuan1,2; Gu Yan1; Wang ShuLian1; Zhang Yu1 ; Fang YanFen1; Johnson, David M.3; Huang YingPing1
|
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 58期号:19页码:2340-2346 |
| 关键词 | Co3O4-graphite electrode electro-Fenton-like system electro-generation of hydroxyl radicals electro-catalytic degradation of POPs |
| ISSN号 | 1001-6538 |
| 通讯作者 | Huang, YP |
| 中文摘要 | A novel composite electrode was constructed by pressing together Co3O4 and graphite and it was used as the cathode in an electro-Fenton-like (EFL) system. The poor electron transport characteristic of Co3O4 was overcome by incorporating graphite. In situ electro-catalytic generation of hydroxyl radicals (center dot OH) occurred at high current efficiencies from pH 2-10, extending the traditional Fenton reaction pH range. Cyclic voltammetry and AC impedance spectrometry were used to characterize the composite electrode. The ability of the EFL system to degrade organic compounds was investigated using sulforhodamine B (SRB) and 2,4-dichlorophenol (2,4-DCP) as probes. Decoloration of SRB (1.0x10(-5) mol/L) was complete (100%) in 150 min and SRB was effectively degraded from pH 2-10. The decomposition of SRB was studied using Fourier transform infrared spectroscopy (FT-IR) and total organic carbon (TOC) analysis and results indicated that the final degradation products were carbon dioxide, carboxylic acids and amines. The EFL system also decomposed 2,4-DCP and the degradation was 98.6% in 240 min. Electro-catalytic degradation of SRB occurs by a center dot OH mechanism. After 5 times reused, the degradation rate of SRB did not significantly slow down. The electrode shows excellent potential for use in advanced oxidation processes (AOPs) used to treat persistent organic pollutants (POPs) in wastewater. |
| 英文摘要 | A novel composite electrode was constructed by pressing together Co3O4 and graphite and it was used as the cathode in an electro-Fenton-like (EFL) system. The poor electron transport characteristic of Co3O4 was overcome by incorporating graphite. In situ electro-catalytic generation of hydroxyl radicals (center dot OH) occurred at high current efficiencies from pH 2-10, extending the traditional Fenton reaction pH range. Cyclic voltammetry and AC impedance spectrometry were used to characterize the composite electrode. The ability of the EFL system to degrade organic compounds was investigated using sulforhodamine B (SRB) and 2,4-dichlorophenol (2,4-DCP) as probes. Decoloration of SRB (1.0x10(-5) mol/L) was complete (100%) in 150 min and SRB was effectively degraded from pH 2-10. The decomposition of SRB was studied using Fourier transform infrared spectroscopy (FT-IR) and total organic carbon (TOC) analysis and results indicated that the final degradation products were carbon dioxide, carboxylic acids and amines. The EFL system also decomposed 2,4-DCP and the degradation was 98.6% in 240 min. Electro-catalytic degradation of SRB occurs by a center dot OH mechanism. After 5 times reused, the degradation rate of SRB did not significantly slow down. The electrode shows excellent potential for use in advanced oxidation processes (AOPs) used to treat persistent organic pollutants (POPs) in wastewater. |
| WOS标题词 | Science & Technology |
| 学科主题 | Science & Technology - Other Topics |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | CORE-SHELL NANOWIRES ; IRON REAGENT ; OPERATIONAL PARAMETERS ; WATER ; EFFICIENT ; DECOLORIZATION ; OXIDATION ; SULFATE ; PH |
| 收录类别 | SCI |
| 原文出处 | 10.1007/s11434-013-5784-4 |
| 语种 | 英语 |
| WOS记录号 | WOS:000321952900012 |
| 公开日期 | 2014-07-17 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/16359]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 作者单位 | 1.China Three Gorges Univ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir R, Minist Educ, Yichang 443002, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Ferrum Coll, Sch Nat Sci & Math, Ferrum, VA 24088 USA |
| 推荐引用方式 GB/T 7714 | Liu Shuan,Gu Yan,Wang ShuLian,et al. Degradation of organic pollutants by a Co3O4-graphite composite electrode in an electro-Fenton-like system[J]. CHINESE SCIENCE BULLETIN,2013,58(19):2340-2346. |
| APA | Liu Shuan.,Gu Yan.,Wang ShuLian.,Zhang Yu.,Fang YanFen.,...&Huang YingPing.(2013).Degradation of organic pollutants by a Co3O4-graphite composite electrode in an electro-Fenton-like system.CHINESE SCIENCE BULLETIN,58(19),2340-2346. |
| MLA | Liu Shuan,et al."Degradation of organic pollutants by a Co3O4-graphite composite electrode in an electro-Fenton-like system".CHINESE SCIENCE BULLETIN 58.19(2013):2340-2346. |
入库方式： OAI收割
来源：海洋研究所
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