IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Heterojunctions of beta-AgVO3/BiVO4 composites for enhanced visible-light-driven photocatalytic antibacterial activity
Xiang, Zhenbo1,2,3,4,5; Wang, Yi1,3,4; Yang, Zhiqing1,2,3,4; Zhang, Dun1,3,4
2019-03-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume776Pages:266-275
Corresponding AuthorWang, Yi(svangyi@qdio.ac.cn) ; Zhang, Dun(zhangdun@qdio.ac.cn)
Abstractbeta-AgVO3/BiVO4 composite visible light driven (VLD) photocatalytic antibacterial materials with a heterojunction structure were synthesized through a simple one-pot hydrothermal approach. The synthesized samples were characterized by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy, photoluminescence spectra, and UV-visible diffuse reflectance spectra techniques, respectively. beta-AgVO3/BiVO4 composite materials exhibit enhanced photocatalytic antibacterial activities against typical marine fouling bacteria (Pseudomonas aeruginosa) under visible light irradiation, which can be attributed to the involving of beta-AgVO3 to form a heterojunction structure. The heterojunction greatly increases the separation extent and the lifetime of the photogenerated charges in the composite material. The 20% beta-AgVO3/BiVO4 sample has the best VLD photocatalytic antibacterial performance. Under 30 min visible light irradiation, its antibacterial rate can reach 99.99%. The superoxide radical (center dot O-2(-)) and holes (h(+)) are main active species in the VLD photocatalytic antibacterial process on the basis of the radical trapping experiment results. Furthermore, a high photocatalytic antibacterial activity can be kept after 5 cycles, suggesting high stability of beta-AgVO3/BiVO4. Materials obtained in the present work can be potentially applied in practical antibacterial fields. (C) 2018 Elsevier B.V. All rights reserved.
Keywordbeta-AgVO3 BiVO4 Composite material Visible light photocatalysis Antibacterial
DOI10.1016/j.jallcom.2018.10.287
Indexed BySCI
Language英语
Funding ProjectNatured Science Foundation of China[41776090] ; Natured Science Foundation of China[41476068] ; National Key Research and Development Program of China[2016YFC1400605] ; Key Research and Development Program of Shandong Province[2018GHY115038] ; AoShan Talent Program ; Qingdao National Laboratory for Marine Science and Technology
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000453826200034
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155947
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorWang, Yi; Zhang, Dun
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS 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.Qingdao Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
5.Rizhao Inst Sci & Tech Informat, 369 Dining Rd, Rizhao 276826, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xiang, Zhenbo,Wang, Yi,Yang, Zhiqing,et al. Heterojunctions of beta-AgVO3/BiVO4 composites for enhanced visible-light-driven photocatalytic antibacterial activity[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,776:266-275.
APA Xiang, Zhenbo,Wang, Yi,Yang, Zhiqing,&Zhang, Dun.(2019).Heterojunctions of beta-AgVO3/BiVO4 composites for enhanced visible-light-driven photocatalytic antibacterial activity.JOURNAL OF ALLOYS AND COMPOUNDS,776,266-275.
MLA Xiang, Zhenbo,et al."Heterojunctions of beta-AgVO3/BiVO4 composites for enhanced visible-light-driven photocatalytic antibacterial activity".JOURNAL OF ALLOYS AND COMPOUNDS 776(2019):266-275.
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