中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Fe(VI)-assisted photocatalytic degradating of microcystin-LR using titanium dioxide

文献类型:期刊论文

作者Yuan, BL; Li, YB; Huang, XD; Liu, HJ; Qu, JH
刊名JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
出版日期2006
卷号178期号:1页码:106-111
关键词cyanobacteria microcystin-LR ferrate-assisted photocatalytic degradation synergetic effect removal efficiency
英文摘要Microcystin cyanobacterial hepatotoxins represent an increasingly severe global health hazard. This study focused on enhancing photocatalytic degradation of microcystin-LR (MCLR) following the addition of ferrate as the indirect electron acceptors to the process. The degradation rate of MCLR by ferrate or the photocatalysis only was 54 and 63%, respectively. However, when relatively low ferrate dose (0.08 mmol/L) was added to the photocatalytic process, a significant enhancement in the photocatalytic rate was observed and the efficiency can be increased to 100%. Compared the effect of Fe(III) and Fe(VI) on the photocatalysis rate, the process of Fe(Vl)-assisted photocatalytic degradation of MCLR apparently existed the synergistic effect and the photocatalysis rate constant k of Fe(VI)/UV/TiO2 process was higher than Fe(III)/UV/TiO2 by 2.5 times and than UV/TiO2 by 4.4 times, but an overdose of ferrate will retard the rate due to the short circuiting reactions between Fe3+ and Fe2+ and the lower absorption of UV light. As expected, pH had a remarkable influence on the reaction rate of detoxification of microcystin-LR and pH 6 was beneficial to the photocatalytic process. (c) 2005 Elsevier B.V. All rights reserved.
WOS记录号WOS:000235504700015
源URL[http://ir.rcees.ac.cn/handle/311016/22997]  
专题生态环境研究中心_环境水质学国家重点实验室
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Yuan, BL,Li, YB,Huang, XD,et al. Fe(VI)-assisted photocatalytic degradating of microcystin-LR using titanium dioxide[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2006,178(1):106-111.
APA Yuan, BL,Li, YB,Huang, XD,Liu, HJ,&Qu, JH.(2006).Fe(VI)-assisted photocatalytic degradating of microcystin-LR using titanium dioxide.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,178(1),106-111.
MLA Yuan, BL,et al."Fe(VI)-assisted photocatalytic degradating of microcystin-LR using titanium dioxide".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 178.1(2006):106-111.

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来源:生态环境研究中心

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