Photoelectrochemical degradation of Methylene Blue with beta-PbO2 electrodes driven by visible light irradiation
文献类型：期刊论文
| 作者 | Li, Guoting ; Yip, HoYin ; Wong, Kin Hang ; Hu, Chun ; Qu, Jiuhui ; Wong, Po Keung |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2011 |
| 卷号 | 23期号:6页码:998—1003 |
| 关键词 | photocatalysis photoelectrochemical process visible light beta-PbO2 electrode |
| 中文摘要 | beta-PbO2 electrodes were prepared by electro-deposition and characterized by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and linear sweep voltammetry. We confirmed pure beta-PbO2 crystals were on the electrode and it had a high oxygen evolution potential. The photoactivity and photoelectrochemical (PEC) properties of the beta-PbO2 electrode were investigated under visible light irradiation (lambda > 420 nm) for the decolorization of Methylene Blue. Pseudo first-order kinetics parameter (K-app) for dye decolorization using the beta-PbO2 electrode achieved 6.71x10(-4) min(-1) under visible light irradiation, which indicated its excellent visible light-induced photoactivity. The K-app of the PEC process was as much as 1.41x10(-3) min(-1) and was 1.71 times that of visible light irradiation or electrolysis even in the presence of the beta-PbO2 electrode. A significant synergetic effect was observed in the PEC system. We also employed TiO2 modified beta-PbO2 electrodes in this test, which revealed that the TiO2 immobilized on the beta-PbO2 electrode inhibited the visible light-induced PEC efficiency despite the amount of TiO2 used for electrode preparation. The beta-PbO2 electrode was also superior to the dimensionally stable anode (Ti/Ru0.3Ti0.7O2) in visible light-induced photoactivity and PEC efficiency. |
| WOS记录号 | WOS:000292120200016 |
| 公开日期 | 2012-10-18 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7133]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Guoting,Yip, HoYin,Wong, Kin Hang,et al. Photoelectrochemical degradation of Methylene Blue with beta-PbO2 electrodes driven by visible light irradiation[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2011,23(6):998—1003. |
| APA | Li, Guoting,Yip, HoYin,Wong, Kin Hang,Hu, Chun,Qu, Jiuhui,&Wong, Po Keung.(2011).Photoelectrochemical degradation of Methylene Blue with beta-PbO2 electrodes driven by visible light irradiation.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,23(6),998—1003. |
| MLA | Li, Guoting,et al."Photoelectrochemical degradation of Methylene Blue with beta-PbO2 electrodes driven by visible light irradiation".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 23.6(2011):998—1003. |
入库方式： OAI收割
来源：生态环境研究中心
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