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BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation
Xiang, Zhenbo1,2; Wang, Yi1; Zhang, Dun1; Ju, Peng3
2016-08-25
发表期刊JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷号40页码:83-92
文章类型Review
摘要A novel visible-light-sensitive BiOI/BiVO4 photocatalyst with a p-n heterojunction structure was synthesized through a facile coprecipitation method. The physical and chemical properties of as synthesized BiOI/BiVO4 composites were characterized by XRD, XPS, BET, SEM, EDS, HRTEM, photoluminescence spectrum and UV-DRS respectively. The photocatalytic activity of the prepared photocatalysts was evaluated by photodegrading methylene blue and killing of Pseudomonas aeruginosa (P. aeruginosa) under visible light irradiation. The results showed that the 30%BiOI/BiVO4 (molar ratio of I:V = 3:7) exhibits the higher photocatalytic activity than the pristine BiOI and BiVO4. Moreover, the sterilization mechanism involved in the photocatalytic disinfection process was studied by captive species trapping experiments. The result revealed that hydroxyl radical ((OH)-O-center dot) and holes (h(+)) are the main reactive species for killing of P. aeruginosa under visible light irradiation. In addition, after five recycles for killing of P. aeruginosa under visible light irradiation, 30%BiOI/BiVO4 does not exhibit significant loss of photocatalytic activity. The results confirm that the synthesized 30%BiOI/BiVO4 photocatalyst has long-time reusability and good photocatalytic stability. The photocatalyst shows potential application in marine antifouling. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
关键词Bioi Bivo4 Photocatalysis Antifouling Visible Light
DOI10.1016/j.jiec.2016.06.009
收录类别SCI
语种英语
WOS记录号WOS:000381834800011
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/135726
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, 18 Tianshui Middle Rd, Lanzhou 730000, Peoples R China
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Xiang, Zhenbo,Wang, Yi,Zhang, Dun,et al. BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation[J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,2016,40:83-92.
APA Xiang, Zhenbo,Wang, Yi,Zhang, Dun,&Ju, Peng.(2016).BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation.JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,40,83-92.
MLA Xiang, Zhenbo,et al."BiOI/BiVO4 p-n heterojunction with enhanced photocatalytic activity under visible-light irradiation".JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 40(2016):83-92.
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