热门
Chemical etching preparation of the Bi2WO6/BiOI p-n heterojunction with enhanced photocatalytic antifouling activity under visible light irradiation
文献类型：期刊论文
| 作者 | Xiang, Yuhui1,2; Ju, Peng2,3 ; Wang, Yi2; Sun, Yan2; Zhang, Dun2; Yu, Jianqiang1
|
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2016-03-15 |
| 卷号 | 288期号:2016页码:264-275 |
| 关键词 | BiOI Bi2WO6 Photocatalysis Antifouling Visible light |
| 英文摘要 | In this paper, a novel Bi2WO6/BiOI heterojunction photocatalyst was prepared based on a chemical etching method and used in photocatalytic antifouling. The as-prepared Bi2WO6/BiOI photocatalyst was composed of Bi2WO6 and BiOI, exhibiting a three-dimensional hierarchical microsphere structure. Experimental results indicated that the molar percentage of Bi2WO6 to BiOI leaded to different morphologies and photocatalytic activities of Bi2WO6/BiOI composites. 30%Bi2WO6/BiOI exhibited an improved photocatalytic performance under visible light irradiation compared to pure Bi2WO6, pure BiOI, and other Bi2WO6/BiOI composites. Almost all (99.99%) of Pseudomonas Aeruginosa (P. aeruginosa), Escherichia Coli (E. coli) and Staphylococcus Aureus (S. aureus) could be killed and the degradation efficiency of methyl blue (MB) could achieve 100% within 60 min in the presence of 30%Bi2WO6/BiOI. In addition, after six circulating photocatalytic antifouling experiments, 30%Bi2WO6/BiOI exhibited no significant loss of photocatalytic performance, verifying its stability and reusability, which was especially important for its application. Moreover, a possible photocatalytic mechanism was proposed based on active species trapping experiments, demonstrating that the superoxide radicals (O-center dot(2)-) and the holes (h(+)) were the main reactive species in this system. The obviously enhanced photocatalytic activity of the 30%Bi2WO6/BiOI heterojunction photocatalyst could be mainly attributed to the formation of the p-n heterojunction, accelerating the separation of photogenerated charge carriers. This work provides a valuable information on the design of novel heterojunction photocatalysts with excellent photocatalytic properties used in marine antifouling. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370085900028 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/112464]  |
| 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.Qingdao Univ, Key Lab New Fiber Mat & Modern Text, Collaborat Innovat Ctr Marine Biomass Fibers Mat, 308 Ningxia Rd, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang, Yuhui,Ju, Peng,Wang, Yi,et al. Chemical etching preparation of the Bi2WO6/BiOI p-n heterojunction with enhanced photocatalytic antifouling activity under visible light irradiation[J]. CHEMICAL ENGINEERING JOURNAL,2016,288(2016):264-275. |
| APA | Xiang, Yuhui,Ju, Peng,Wang, Yi,Sun, Yan,Zhang, Dun,&Yu, Jianqiang.(2016).Chemical etching preparation of the Bi2WO6/BiOI p-n heterojunction with enhanced photocatalytic antifouling activity under visible light irradiation.CHEMICAL ENGINEERING JOURNAL,288(2016),264-275. |
| MLA | Xiang, Yuhui,et al."Chemical etching preparation of the Bi2WO6/BiOI p-n heterojunction with enhanced photocatalytic antifouling activity under visible light irradiation".CHEMICAL ENGINEERING JOURNAL 288.2016(2016):264-275. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。