Promoting photocatalytic performance of Bi2WO6 nanosheet incorporated with a 3D-Succulent plant-like SrMoO4 modified by Ag under simulated sunlight

doi:10.1016/j.optmat.2021.111473

	Promoting photocatalytic performance of Bi2WO6 nanosheet incorporated with a 3D-Succulent plant-like SrMoO4 modified by Ag under simulated sunlight
	Gu, Yufen 1,2; Guo, Bobo 1,2
刊名	OPTICAL MATERIALS
	2021-11
卷号	121
关键词	Bi2WO6 nanosheet SrMoO4 Bi2WO6 heterojunctions Ag SrMoO4 Bi2WO6 heterojunctions Photodegradation performances Succulent plant-like SrMoO4
ISSN号	0925-3467
DOI	10.1016/j.optmat.2021.111473
英文摘要	In order to improve the photocatalytic performance of Bi2WO6, the self-assembled succulent plant-like SrMoO4 is successfully incorporated with Bi2WO6 nanosheet through co-precipitation method. Ag nanoparticles are introduced to Bi2WO6/SrMoO4 (SMO/BWO) composite to form a ternary 5 wt%Ag/4.3 wt%SMO/BWO heterojunction photocatalyst, and further promote photocatalytic activities. SEM images of the as-prepared samples demonstrate that part of the BWO nanosheet with Ag nanoparticles are adhered and embedded onto the 3D-succulent plant-like SMO. The obtained transient photocurrent, photoluminescence spectroscopy (PL) and electrochemical impedance spectroscopy (EIS) show that the separation efficiency of photo-generated electron (e- ) and hole (h+) pair of the ternary photocatalyst is the highest. As a result, the 5 wt%Ag/4.3 wt%SMO/BWO heterojunction photocatalyst has highly better off photocatalytic performance under simulated sunlight for methylene blue (MB). According to the obtained apparent reaction rate constants, the photocatalytic performance values are determined to be 4.94 and 8.78 times than of the bare BWO and SMO, respectively. Furthermore, a Z-scheme electron transfer mechanism is proposed to elucidate the enhanced photodegradation performances of the 5 wt% Ag/4.3 wt%SMO/BWO heterojunction photocatalysts, as well consider the effect of local surface ion resonance of Ag nanoparticles.
WOS研究方向	Materials Science ; Optics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000697374200003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148643]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Reuse Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Key Lab Nonferrous Met Alloy & Proc, Minist Educ, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Gu, Yufen,Guo, Bobo. Promoting photocatalytic performance of Bi2WO6 nanosheet incorporated with a 3D-Succulent plant-like SrMoO4 modified by Ag under simulated sunlight[J]. OPTICAL MATERIALS,2021,121.
APA	Gu, Yufen,&Guo, Bobo.(2021).Promoting photocatalytic performance of Bi2WO6 nanosheet incorporated with a 3D-Succulent plant-like SrMoO4 modified by Ag under simulated sunlight.OPTICAL MATERIALS,121.
MLA	Gu, Yufen,et al."Promoting photocatalytic performance of Bi2WO6 nanosheet incorporated with a 3D-Succulent plant-like SrMoO4 modified by Ag under simulated sunlight".OPTICAL MATERIALS 121(2021).