A novel Z-scheme Bi2MoO6/BiOBr photocatalyst for enhanced photocatalytic activity under visible light irradiation

doi:10.1016/j.apsusc.2018.06.186

	A novel Z-scheme Bi2MoO6/BiOBr photocatalyst for enhanced photocatalytic activity under visible light irradiation
	Hu, Taiping 1; Yang, Yang 2; Dai, Kai 1; Zhang, Jinfeng 1; Liang, Changhao3,4
刊名	APPLIED SURFACE SCIENCE
	2018-10-31
卷号	456 页码:473-481
关键词	Bi2MoO6 BiOBr Photocatalysis Z-scheme Solvothermal method Visible light
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2018.06.186
通讯作者	Dai, Kai(daikai940@chnu.edu.cn) ; Zhang, Jinfeng(jfzhang@chnu.edu.cn) ; Liang, Changhao(chliang@issp.ac.cn)
英文摘要	In this work, BiOBr was firstly prepared by using a facile solvothermal approach at 393 K for 24 h, and then Bi2MoO6 well dispersed on the surface of BiOBr at 433 K for 3 h. The shape, chemical composition, crystal structure, optical property and surface area of Bi2MoO6/BiOBr were investigated by field emission electron microscope (FESEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), N-2 adsorption-desorption isotherms and UV-Vis diffuse reflectance spectroscopy (DRS). The Bi2MoO6/BiOBr heterojunctions exhibited substantially improved performance for removal of methylene blue (MB), compared with BiOBr and Bi2MoO6 samples under 410nm light excitation. The constant K-app of 20% Bi2MoO6/BiOBr is 0.0539 min(-1), which is 4.4 and 6.9 times higher than that of Bi2MoO6 (0.0121 min(-1)) and BiOBr (0.0078 min(-1)). The prominent enhancement of activity is due to the high charge separation capacity, which resulted from the matched band alignment of two components. Finally, the Z-scheme photocatalytic mechanism was confirmed by radical trapping experiment.
资助项目	National Natural Science Foundation of China[51572103] ; National Natural Science Foundation of China[51502106] ; Distinguished Young Scholar of Anhui Province[1808085J14] ; Foundation for Young Talents in College of Anhui Province[gxyqZD2017051] ; Key Foundation of Educational Commission of Anhui Province[KJ2016SD53] ; Anhui Provincial Innovation Team of Design and Application of Advanced Energetic Materials[KJ2015TD003]
WOS关键词	FACILE SYNTHESIS ; CO2 REDUCTION ; GRAPHENE OXIDE ; CARBON NITRIDE ; DOPED BI2MOO6 ; COMPOSITE ; DEGRADATION ; MECHANISM ; G-C3N4 ; CONSTRUCTION
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000441281300054
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Distinguished Young Scholar of Anhui Province ; Distinguished Young Scholar of Anhui Province ; Distinguished Young Scholar of Anhui Province ; Distinguished Young Scholar of Anhui Province ; Distinguished Young Scholar of Anhui Province ; Distinguished Young Scholar of Anhui Province ; 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内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/37978]
专题	中国科学院合肥物质科学研究院
通讯作者	Dai, Kai; Zhang, Jinfeng; Liang, Changhao
作者单位	1.Huaibei Normal Univ, Coll Phys & Elect Informat, Anhui Key Lab Energet Mat, Huaibei 235000, Peoples R China 2.Chinese Acad Sci, Inst Microelect, Key Lab Microelect Devices & Integrated Technol, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 23003, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab NanornateriaLs & Nanotechnol, Hefei 23003, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Hu, Taiping,Yang, Yang,Dai, Kai,et al. A novel Z-scheme Bi2MoO6/BiOBr photocatalyst for enhanced photocatalytic activity under visible light irradiation[J]. APPLIED SURFACE SCIENCE,2018,456:473-481.
APA	Hu, Taiping,Yang, Yang,Dai, Kai,Zhang, Jinfeng,&Liang, Changhao.(2018).A novel Z-scheme Bi2MoO6/BiOBr photocatalyst for enhanced photocatalytic activity under visible light irradiation.APPLIED SURFACE SCIENCE,456,473-481.
MLA	Hu, Taiping,et al."A novel Z-scheme Bi2MoO6/BiOBr photocatalyst for enhanced photocatalytic activity under visible light irradiation".APPLIED SURFACE SCIENCE 456(2018):473-481.