Synergetic effect of Bi2WO6 photocatalyst with C-60 and enhanced photoactivity under visible irradiation
文献类型:期刊论文
作者 | Zhu, Shengbao; Xu, Tongguang; Fu, Hongbo; Zhao, Jincai; Zhu, Yongfa |
刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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出版日期 | 2007-09-01 |
卷号 | 41期号:17页码:6234-6239 |
ISSN号 | 0013-936X |
DOI | 10.1021/es070953y |
英文摘要 | Fullerene (C-60)-modified Bi2WO6 photocatalyst is prepared by a simple absorbing process. The as-prepared samples show the high efficiency for the degradation of nonbiodegradable azodyes methylene blue (MB) and rhodamine B (RhB) under visible light (lambda > 420 nm) and simulated solar light (lambda > 290 nm). After being modified by C60, the photocatalytic activities of Bi2WO6 samples increase about 5.0 and 1.5 times for the degradation of MB and RhB under visible light irradiation, whereas 4.6 and 2.1 times under xenon lamp irradiation, respectively. The enhanced photocatalytic activity for C-60-modified Bi2WO6 comes from the high migration efficiency of photoinduced electrons on the interface Of C-60 and Bi2WO6 which is produced by the interaction of Bi2WO6 and C-60 with the conjugative,pi-system. The optimum synergetic effect is found at a weight ratio of 1.25 wt % (C-60/Bi2WO6). The photocatalytic reaction process Of C60-modified Bi2WO6 is mainly governed by direct holes and O-2(center dot-) oxidation. |
语种 | 英语 |
WOS记录号 | WOS:000249240100055 |
出版者 | AMER CHEMICAL SOC |
源URL | [http://ir.iccas.ac.cn/handle/121111/62953] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Zhu, Yongfa |
作者单位 | 1.Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China 2.Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu, Shengbao,Xu, Tongguang,Fu, Hongbo,et al. Synergetic effect of Bi2WO6 photocatalyst with C-60 and enhanced photoactivity under visible irradiation[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2007,41(17):6234-6239. |
APA | Zhu, Shengbao,Xu, Tongguang,Fu, Hongbo,Zhao, Jincai,&Zhu, Yongfa.(2007).Synergetic effect of Bi2WO6 photocatalyst with C-60 and enhanced photoactivity under visible irradiation.ENVIRONMENTAL SCIENCE & TECHNOLOGY,41(17),6234-6239. |
MLA | Zhu, Shengbao,et al."Synergetic effect of Bi2WO6 photocatalyst with C-60 and enhanced photoactivity under visible irradiation".ENVIRONMENTAL SCIENCE & TECHNOLOGY 41.17(2007):6234-6239. |
入库方式: OAI收割
来源:化学研究所
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