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

文献类型：期刊论文

作者Zheng, Jiaojiao1; Chang, Fei1; Jiao, Mingzhi1; Xu, Quan1; Deng, Baoqing1; 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)
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期2018-01-15
卷号510页码:20-31
关键词Bi12o17cl2 Wo3 Composite Heterojunction Photocatalytic Degradation
ISSN号0021-9797
DOI10.1016/j.jcis.2017.07.119
产权排序第2完成单位
文献子类Article
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.
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WOS关键词HYDROTHERMAL SYNTHESIS ; OXYGEN-RICH ; COMBUSTION SYNTHESIS ; CHARGE-TRANSFER ; BISPHENOL-A ; DOPED BIOCL ; DEGRADATION ; BI12O17CL2 ; WO3 ; NANOSHEETS
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000414823800003
资助机构National Natural Science Foundation of China(21207089) ; SRF for ROCS, SEM ; Natural Science Foundation of Shanghai(17ZR1419200)
源URL[http://ir.yic.ac.cn/handle/133337/23465]  
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
烟台海岸带研究所_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.

入库方式： OAI收割

来源：烟台海岸带研究所

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