Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres

doi:10.1016/j.jallcom.2021.161883

	Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres
	Yang, Cai 1; Qin, Chan 1; Zhong, Junbo 1; Li, Jianzhang 1; Huang, Shengtian 1; Wang, Qi 2; Ma, Lan 3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2022-01-15
卷号	890
关键词	BiVO4 Photocatalysis Plasma treatment Oxygen vacancies Bi-0 Photoactivity
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.161883
通讯作者	Zhong, Junbo(lschmanuscipt@163.com)
英文摘要	Introduction of oxygen vacancies on the surface of photocatalyst has been prove to be an impactful channel to boost the photocatalytic activity, which can restrain the recombination of photoactivated carriers and produce defect energy level. Plasma surface treatment can change the stability of the crystal structure, increase the specific surface area of the materials, and produce more oxygen vacancies. In this study, plasma was used to treat BiVO4 under different atmospheres (Ar, N-2, H-2) to further exalt the photocatalytic capability of BiVO4 with rich oxygen vacancies. X-ray photoelectron spectroscopy and low-temperature electron paramagnetic resonance spectrometer confirmed that oxygen vacancies rich BiVO4 photocatalysts were all successfully fabricated under the different atmospheres. Moreover, Bi-0 was in-situ generated on the surface of BiVO4 under H-2 atmosphere treatment. Under N-2 atmosphere treatment, a new N 2p energy level can be established. Under Ar atmosphere treatment, a new energy level established by oxygen vacancies is formed. The catalytic capability was assessed by decomposition of rhodamine B and tetracycline. Interestingly, after treated under the H-2 atmosphere, the degradation ability of Bi-0/OVs-BiVO4 for rhodamine B and tetracycline disintegration is 3.1 and 3.3 times of that of the reference BiVO4, respectively. The photocatalytic enhancement mechanism of BiVO4 treated by plasma under different atmospheres was proposed. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	Science and Technology Department of Sichuan Province[2019YJ0457] ; Science and Technology Department of Sichuan Province[2019ZYZF0069] ; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province[CSPC202105]
WOS关键词	PERFORMANCE ; FABRICATION ; INTEGRATION ; REDUCTION ; OXIDATION ; OXIDE
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000706789000002
资助机构	Science and Technology Department of Sichuan Province ; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125637]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhong, Junbo
作者单位	1.Sichuan Univ Sci & Engn, Sch Chem & Environm Engn, Zigong 643000, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230000, Peoples R China 3.Panzhihua Univ, Sichuan Key Lab Comprehens Utilizat Vanadium & Ti, Panzhihua 617000, Peoples R China
推荐引用方式 GB/T 7714	Yang, Cai,Qin, Chan,Zhong, Junbo,et al. Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,890.
APA	Yang, Cai.,Qin, Chan.,Zhong, Junbo.,Li, Jianzhang.,Huang, Shengtian.,...&Ma, Lan.(2022).Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres.JOURNAL OF ALLOYS AND COMPOUNDS,890.
MLA	Yang, Cai,et al."Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres".JOURNAL OF ALLOYS AND COMPOUNDS 890(2022).