A shuriken-shaped m-BiVO4/{001}-TiO2 heterojunction: Synthesis, structure and enhanced visible light photocatalytic activity
Zhu, Xiaodi1; Zhang, Fan1; Wang, Mengjiao2; Gao, Xiang1; Luo, Ying1; Xue, Jiawei3; Zhang, Yi1; Ding, Jianjun4; Sun, Song1,2; Bao, Jun1,2
刊名APPLIED CATALYSIS A-GENERAL
2016-07-05
卷号521期号:页码:42-49
关键词Bivo4/tio2 Heterojunction Photocatalytic Degradation Visible Light
DOI10.1016/j.apcata.2015.10.017
文献子类Article
英文摘要Shuriken-shaped BiVO4/TiO2 composite with heterojunction structure was synthesized by a facile hydrothermal reaction. The photocatalyst was characterized by X-ray diffraction, transmission electron microscopy, high resolution transmission electron microscopy, UV-vis diffuse reflectance spectra, N-2 adsorption/desorption, X-ray photoelectron spectroscopy techniques, photoluminescence spectra and photoelectrochemical measurements. The photocatalytic activities were evaluated by the degradation of methyl blue (MB) under visible light irradiation. The results indicated that the synthesized monoclinic BiVO4 had a shuriken shape. The TiO2 nanosheets (NSs) with dominant {0 0 1} facets adhered uniformly on the surface of BiVO4, forming the heterojunction structure. The obtained BiVO4/TiO2 showed about 1.4 times and 8.9 times higher photocatalytic activity than that of the bare BiVO4 and physical mixture BiVO2_TiO2 sample, respectively, which can be attributed to the synergistic effect of BiVO4/TiO2 heterojunction and TiO2 NSs. The incorporation of TiO2 not only did not affect the visible light absorption ability of BiVO4, but also improved the specific surface area as well as pore diameter, which suggesting a better adsorption ability for pollutants. More importantly, the formed heterojunction between m-BiVO4 and TiO2 significantly improved the separation efficiency of the photogenerated electron-hole pairs. These factors contribute to the enhancement of photocatalytic activity. A possible mechanism was also proposed to understand the origin of enhanced performance in the heterojunction system. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词ANATASE TIO2 NANOSHEETS ; DOMINANT 001 FACETS ; BIVO4 PHOTOCATALYST ; OXYGEN EVOLUTION ; O-2 EVOLUTION ; WATER ; IRRADIATION ; PERFORMANCE ; DEGRADATION ; TEMPERATURE
WOS研究方向Chemistry ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000379277900007
资助机构National Basic Research Program of China (973 Program)(2012CB922004) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Natural Science Foundation of China(11205159 ; National Natural Science Foundation of China(11205159 ; National Natural Science Foundation of China(11205159 ; National Natural Science Foundation of China(11205159 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; 11179034) ; 11179034) ; 11179034) ; 11179034) ; 1408085MB25) ; 1408085MB25) ; 1408085MB25) ; 1408085MB25) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Basic Research Program of China (973 Program)(2012CB922004) ; National Natural Science Foundation of China(11205159 ; National Natural Science Foundation of China(11205159 ; National Natural Science Foundation of China(11205159 ; National Natural Science Foundation of China(11205159 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; Anhui Provincial Natural Science Foundation(1308085MB27 ; 11179034) ; 11179034) ; 11179034) ; 11179034) ; 1408085MB25) ; 1408085MB25) ; 1408085MB25) ; 1408085MB25)
内容类型期刊论文
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22483]  
专题合肥物质科学研究院_应用技术研究所
作者单位1.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Collaborat Innovat Ctr Chem Energy Mat, Hefei 230029, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China
3.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
4.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Hefei 230031, Peoples R China
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Zhu, Xiaodi,Zhang, Fan,Wang, Mengjiao,et al. A shuriken-shaped m-BiVO4/{001}-TiO2 heterojunction: Synthesis, structure and enhanced visible light photocatalytic activity[J]. APPLIED CATALYSIS A-GENERAL,2016,521(无):42-49.
APA Zhu, Xiaodi.,Zhang, Fan.,Wang, Mengjiao.,Gao, Xiang.,Luo, Ying.,...&Gao, Chen.(2016).A shuriken-shaped m-BiVO4/{001}-TiO2 heterojunction: Synthesis, structure and enhanced visible light photocatalytic activity.APPLIED CATALYSIS A-GENERAL,521(无),42-49.
MLA Zhu, Xiaodi,et al."A shuriken-shaped m-BiVO4/{001}-TiO2 heterojunction: Synthesis, structure and enhanced visible light photocatalytic activity".APPLIED CATALYSIS A-GENERAL 521.无(2016):42-49.
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