A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: Synthesis, characterization, and improved photocatalytic performance

doi:10.1016/j.jcis.2017.07.119

	A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: Synthesis, characterization, and improved photocatalytic performance
	Zheng, Jiaojiao 1; Chang, Fei 1; Jiao, Mingzhi 1; Xu, Quan 1; Deng, Baoqing 1; Hu, Xuefeng2 ; Chang, Fei(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 Remedia, Yantai 264003, Shandong, Peoples R China)
发表期刊	JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN	0021-9797
	2018-01-15
卷号	510 页码:20-31
关键词	Bi12o17cl2 Wo3 Composite Heterojunction Photocatalytic Degradation
研究领域	Chemistry, Physical
DOI	10.1016/j.jcis.2017.07.119
产权排序	第2完成单位
作者部门	海岸带环境过程实验室
英文摘要	Novel visible-light-driven WO3/Bi12O12Cl2 heterojuncted photocatalysts with different mass ratios were successfully fabricated by a facile hydrothermal process and were characterized by XRD, UV-Vis DRS, SEM, TEM, HRTEM, XPS, BET, Raman, PL, and ESR techniques. The original morphology of Bi12O12Cl2 was maintained after the addition of WO3 nanoparticles and the specific surface area values of WBx composites were obviously enlarged. The intimate contact of both components in HRTEM confirmed the generation of smooth phase interface. These as-prepared samples were subjected to the photocatalytic degradation of dye rhodamine B (RhB) and tetracycline hydrochloride (TC) under visible light irradiation (lambda >= 420 nm). Under identical conditions, WBx composites showed greatly enhanced photocatalytic performance in comparison to bare WO3 and Bi12O12Cl2. Especially, the sample WB0.5 exhibited the highest photocatalytic removal outcome over RhB among all tested candidates and owned an apparent rate constant about 73.7, 7.1, 15.8 times of those pure WO3, Bi12O12Cl2, and N-doped TiO2, respectively. The enhancement of photocatalytic capability of composites mainly attributed to the suitable morphology, enlarged specific surface areas, strengthened optical property, and favorable well-aligned straddling band-structures. Active species entrapping experiments confirmed holes and superoxide radicals as major oxidative species, by which, a possible photocatalytic mechanism was primarily proposed. (C) 2017 Elsevier Inc. All rights reserved.
文章类型	Article
资助机构	National Natural Science Foundation of China(21207089) ; SRF for ROCS, SEM ; Natural Science Foundation of Shanghai(17ZR1419200)
收录类别	SCI
语种	英语
关键词[WOS]	HYDROTHERMAL SYNTHESIS ; OXYGEN-RICH ; COMBUSTION SYNTHESIS ; CHARGE-TRANSFER ; BISPHENOL-A ; DOPED BIOCL ; DEGRADATION ; BI12O17CL2 ; WO3 ; NANOSHEETS
研究领域[WOS]	Chemistry
WOS记录号	WOS:000414823800003
引用统计	被引频次：117[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/23465
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_环境化学实验室
通讯作者	Chang, Fei; Hu, Xuefeng; Chang, Fei(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 Remedia, Yantai 264003, Shandong, Peoples R China)
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 Remedia, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Jiaojiao,Chang, Fei,Jiao, Mingzhi,et al. A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: Synthesis, characterization, and improved photocatalytic performance[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,510:20-31.
APA	Zheng, Jiaojiao.,Chang, Fei.,Jiao, Mingzhi.,Xu, Quan.,Deng, Baoqing.,...&Hu, Xuefeng.(2018).A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: Synthesis, characterization, and improved photocatalytic performance.JOURNAL OF COLLOID AND INTERFACE SCIENCE,510,20-31.
MLA	Zheng, Jiaojiao,et al."A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: Synthesis, characterization, and improved photocatalytic performance".JOURNAL OF COLLOID AND INTERFACE SCIENCE 510(2018):20-31.