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A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: Synthesis, characterization, and improved photocatalytic performance
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)
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
2018-01-15
Volume510Pages:20-31
KeywordBi12o17cl2 Wo3 Composite Heterojunction Photocatalytic Degradation
MOST Discipline CatalogueChemistry, Physical
DOI10.1016/j.jcis.2017.07.119
Contribution Rank第2完成单位
Department海岸带环境过程实验室
AbstractNovel 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.
Funding OrganizationNational Natural Science Foundation of China(21207089) ; SRF for ROCS, SEM ; Natural Science Foundation of Shanghai(17ZR1419200)
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordHYDROTHERMAL SYNTHESIS ; OXYGEN-RICH ; COMBUSTION SYNTHESIS ; CHARGE-TRANSFER ; BISPHENOL-A ; DOPED BIOCL ; DEGRADATION ; BI12O17CL2 ; WO3 ; NANOSHEETS
WOS Research AreaChemistry
WOS IDWOS:000414823800003
Citation statistics
Cited Times:57[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/23465
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorChang, 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)
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 Remedia, Yantai 264003, Shandong, Peoples R China
Recommended Citation
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.
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