Construction of a Bi2WO6/TiO2 heterojunction and its photocatalytic degradation performance

doi:10.1039/d1nj06149f

IR > 石油化工学院

	Construction of a Bi2WO6/TiO2 heterojunction and its photocatalytic degradation performance
	Li, Hongxia1 ; Liang, Lei 1,2; Niu, Xiaohui1 ; Zhang, Deyi1 ; Fan, Haiyan 3; Wang, Kunjie1,2
	2022-05-03
发表期刊	New Journal of Chemistry
ISSN	1144-0546
卷号	46 期号:17 页码:8185-8194
摘要	TiO2 was prepared via a solvothermal method, and a Bi2WO6/TiO2 heterojunction was constructed via a hydrothermal method. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to analyze the crystal structure and morphology of composite photocatalysts with different molar ratios. X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDS) were used to analyze the elemental composition and chemical state of the photocatalysts. We explored the degradation performance of the photocatalysts toward rhodamine B (RhB) and tetracycline (TC). When the molar ratio of TiO2 to Bi2WO6 is 6, the composite photocatalyst has the best degradation performance. Under visible light irradiation for 20 min and 25 min, the degradation rates of RhB and TC were 96% and 78%, respectively. The PL and photocurrent results show that the combination of TiO2 and Bi2WO6 can significantly improve the photogenerated carrier separation efficiency of the composite photocatalyst. The main active species in the photocatalytic degradation process is h+, as h+ can not only directly degrade pollutants, but also undergo redox reactions with OH− to generate OH, which participates in the degradation of organic pollutants. © 2022 The Royal Society of Chemistry
关键词	Chemical analysis Crystal structure Energy dispersive spectroscopy Heterojunctions Molar ratio Organic pollutants Photocatalytic activity Photodegradation Redox reactions Rhodium compounds Scanning electron microscopy Titanium dioxide X ray photoelectron spectroscopy Composite photocatalysts Crystal structure and morphology Hydrothermal methods Molar ratio Performance Photocatalytic degradation Rhodamine-B Solvothermal method X ray scanning X- ray diffractions
DOI	10.1039/d1nj06149f
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000781275500001
出版者	Royal Society of Chemistry
EI入藏号	20221912078494
EI主题词	Bismuth compounds
EI分类号	714.2 Semiconductor Devices and Integrated Circuits ; 741.1 Light/Optics ; 801.4 Physical Chemistry ; 802.2 Chemical Reactions ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds ; 933.1.1 Crystal Lattice
来源库	WOS
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158502
专题	石油化工学院
通讯作者	Wang, Kunjie
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China; 3.Nazarbayev Univ, Chem Dept, Astana 010000, Kazakhstan
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Li, Hongxia,Liang, Lei,Niu, Xiaohui,et al. Construction of a Bi2WO6/TiO2 heterojunction and its photocatalytic degradation performance[J]. New Journal of Chemistry,2022,46(17):8185-8194.
APA	Li, Hongxia,Liang, Lei,Niu, Xiaohui,Zhang, Deyi,Fan, Haiyan,&Wang, Kunjie.(2022).Construction of a Bi2WO6/TiO2 heterojunction and its photocatalytic degradation performance.New Journal of Chemistry,46(17),8185-8194.
MLA	Li, Hongxia,et al."Construction of a Bi2WO6/TiO2 heterojunction and its photocatalytic degradation performance".New Journal of Chemistry 46.17(2022):8185-8194.