Poly(vinyl pyrrolidone)-assisted hydrothermal synthesis and enhanced visible-light photocatalytic performance of oxygen-rich bismuth oxychlorides

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Poly(vinyl pyrrolidone)-assisted hydrothermal synthesis and enhanced visible-light photocatalytic performance of oxygen-rich bismuth oxychlorides
	Chang, Fei 1; Luo, Jieru 1; Wang, Xiaofang 1; Xie, Yunchao 1; Deng, Baoqing 1; Hu, Xuefeng2
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2015-12-01
卷号	459 页码:136-145
关键词	Bi12O17Cl2 Poly(vinyl pyrrolidone) Photocatalysis Rhodamine B 2,4-Dichlorophenol Mechanism
ISSN号	0021-9797
通讯作者	Chang, F (reprint author), Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China. feichang@usst.edu.cn ; xfhu@yic.ac.cn
产权排序	[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
中文摘要	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.
英文摘要	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.
学科主题	Chemistry
研究领域[WOS]	Chemistry
关键词[WOS]	RHODAMINE-B ; SEMICONDUCTOR PHOTOCATALYSIS ; HIERARCHICAL NANOSTRUCTURES ; CHARGE-TRANSFER ; DEGRADATION ; BIOCL ; BI12O17CL2 ; WATER ; HETEROJUNCTIONS ; NANOPARTICLES
收录类别	SCI
语种	英语
WOS记录号	WOS:000361161000017
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/13809]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.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
推荐引用方式 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,&Hu, Xuefeng.(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.