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Poly(vinyl pyrrolidone)-assisted hydrothermal synthesis and enhanced visible-light photocatalytic performance of oxygen-rich bismuth oxychlorides
Chang, Fei1; Luo, Jieru1; Wang, Xiaofang1; Xie, Yunchao1; Deng, Baoqing1; Hu, Xuefeng2; Chang, F (reprint author), Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China. feichang@usst.edu.cn; xfhu@yic.ac.cn
2015-12-01
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume459Pages:136-145
Contribution Rank[Chang, Fei; Luo, Jieru; Wang, Xiaofang; Xie, Yunchao; Deng, Baoqing] Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China; [Hu, Xuefeng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
AbstractA series of novel oxygen-rich bismuth oxychloride (Bi12O17Cl2) were synthesized through a facile poly (vinyl pyrrolidone) (PVP)-assisted hydrothermal route. These obtained Bi12O17Cl2 samples were characterized by various physicochemical techniques. It was found that a proper addition amount of PVP could promote the transformation of Bi12O17Cl2 morphology from irregular clusters to three-dimensional hierarchical flower-like microspheres that were nominated as sample BP2. As-synthesized samples were subjected to a photocatalytic degradation of dye Rhodamine B (RhB) or 2,4-dichlorophenol (2,4-DCP) under visible light. Among all candidates, the sample BP2 with a hierarchical flower-like morphology showed the best degradation efficiency for RhB and 2,4-DCP. The apparent rate constant of sample BP2 in terms of degradation of RhB was nearly 5.7 and 45 times that of unmodified BP0 and N-TiO2. The enhanced photocatalytic performance could be ascribed to synergetic effects including unique hierarchical morphologies, large specific surface area, small particle size, good crystallinity, and suitable band structures. A possible mechanism of catalytic degradation was finally proposed basing upon the active species trapping experiments. (C) 2015 Elsevier Inc. All rights reserved.; A series of novel oxygen-rich bismuth oxychloride (Bi12O17Cl2) were synthesized through a facile poly (vinyl pyrrolidone) (PVP)-assisted hydrothermal route. These obtained Bi12O17Cl2 samples were characterized by various physicochemical techniques. It was found that a proper addition amount of PVP could promote the transformation of Bi12O17Cl2 morphology from irregular clusters to three-dimensional hierarchical flower-like microspheres that were nominated as sample BP2. As-synthesized samples were subjected to a photocatalytic degradation of dye Rhodamine B (RhB) or 2,4-dichlorophenol (2,4-DCP) under visible light. Among all candidates, the sample BP2 with a hierarchical flower-like morphology showed the best degradation efficiency for RhB and 2,4-DCP. The apparent rate constant of sample BP2 in terms of degradation of RhB was nearly 5.7 and 45 times that of unmodified BP0 and N-TiO2. The enhanced photocatalytic performance could be ascribed to synergetic effects including unique hierarchical morphologies, large specific surface area, small particle size, good crystallinity, and suitable band structures. A possible mechanism of catalytic degradation was finally proposed basing upon the active species trapping experiments. (C) 2015 Elsevier Inc. All rights reserved.
KeywordBi12o17cl2 Poly(Vinyl Pyrrolidone) Photocatalysis Rhodamine b Mechanism 2 4-dichlorophenol
Department中科院海岸带环境过程与生态修复重点实验室
Subject AreaChemistry
DOI10.1016/j.jcis.2015.08.023
Funding OrganizationNational Natural Science Foundation of China(21207089) ; ROCS, SEM ; Hujiang Foundation of China(B14003)
Indexed BySCI
WOS KeywordRHODAMINE-B ; SEMICONDUCTOR PHOTOCATALYSIS ; HIERARCHICAL NANOSTRUCTURES ; CHARGE-TRANSFER ; DEGRADATION ; BIOCL ; BI12O17CL2 ; WATER ; HETEROJUNCTIONS ; NANOPARTICLES
SubtypeArticle
Language英语
WOS Research AreaChemistry
WOS IDWOS:000361161000017
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/13809
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorChang, F (reprint author), Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China. feichang@usst.edu.cn; xfhu@yic.ac.cn
Affiliation1.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Chang, Fei,Luo, Jieru,Wang, Xiaofang,et al. Poly(vinyl pyrrolidone)-assisted hydrothermal synthesis and enhanced visible-light photocatalytic performance of oxygen-rich bismuth oxychlorides[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2015,459:136-145.
APA Chang, Fei.,Luo, Jieru.,Wang, Xiaofang.,Xie, Yunchao.,Deng, Baoqing.,...&xfhu@yic.ac.cn.(2015).Poly(vinyl pyrrolidone)-assisted hydrothermal synthesis and enhanced visible-light photocatalytic performance of oxygen-rich bismuth oxychlorides.JOURNAL OF COLLOID AND INTERFACE SCIENCE,459,136-145.
MLA Chang, Fei,et al."Poly(vinyl pyrrolidone)-assisted hydrothermal synthesis and enhanced visible-light photocatalytic performance of oxygen-rich bismuth oxychlorides".JOURNAL OF COLLOID AND INTERFACE SCIENCE 459(2015):136-145.
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