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Facile fabrication of AgI/BiVO4 composites with enhanced visible photocatalytic degradation and antibacterial ability
Xiang, Zhenbo1,2; Wang, Yi1; Ju, Peng3; Long, Yang1,2; Zhang, Dun1
2017-10-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume721Pages:622-627
SubtypeArticle
AbstractNovel Agl/BiVO4 photocatalysts were successfully synthesized via a simple hydrothermal process for the first time. The synthesized Agl/BiVO4 composites were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Energy dispersive spectroscopy (EDS), High resolution transmission electron microscopy (HRTEM), Scanning electron microscope (SEM), photoluminescence (PL) spectra and DV diffuse reflectance spectroscopy (UV-DRS) techniques, respectively. The photocatalytic performances of the as-obtained samples were evaluated by photodegradation of rhodamine B (RhB) and killing of Pseudomonas aeruginosa (P. aeruginosa) under visible light irradiation. The 20% Agl/BiVO4 showed higher photodegradation and photocatalytic antibacterial activity than the pure AgI and BiVO4. 20% Agl/BiVO4 exhibits the best photocatalytic performance with almost all RhB decomposed within 150 min and the antibacterial rate could achieve over 99.99% after 30 min photocatalytic antibacterial reaction. The photocatalytic antibacterial mechanism of AgliBiVO(4) was investigated by radical trapping experiments. The results revealed that superoxide radical (center dot O (2) over bar) and holes (h(+)) were the dominant active species in the photocatalytic antibacterial process. Furthermore, the 20% AgI/BiVO4 still maintained a high activity after five cycle for killing of P. aeruginosa. The experimental results showed that the synthesized AgliBiVO(4) can be used in water treatment of degradating the organic pollutants and killing the water bacteria at the same time. (C) 2017 Elsevier B.V. All rights reserved.
KeywordAgi Bivo4 Photocatalysis Degradation Antibacterial Visible Light
DOI10.1016/jjallcom.2017.06.030
Indexed BySCI
Language英语
WOS IDWOS:000405252400071
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/137075
Collection海洋环境腐蚀与与生物污损重点实验室
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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Xiang, Zhenbo,Wang, Yi,Ju, Peng,et al. Facile fabrication of AgI/BiVO4 composites with enhanced visible photocatalytic degradation and antibacterial ability[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,721:622-627.
APA Xiang, Zhenbo,Wang, Yi,Ju, Peng,Long, Yang,&Zhang, Dun.(2017).Facile fabrication of AgI/BiVO4 composites with enhanced visible photocatalytic degradation and antibacterial ability.JOURNAL OF ALLOYS AND COMPOUNDS,721,622-627.
MLA Xiang, Zhenbo,et al."Facile fabrication of AgI/BiVO4 composites with enhanced visible photocatalytic degradation and antibacterial ability".JOURNAL OF ALLOYS AND COMPOUNDS 721(2017):622-627.
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