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

doi:10.1016/j.jallcom.2021.161883

HFCAS OpenIR

	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
	2022-01-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
通讯作者	Zhong, Junbo(lschmanuscipt@163.com)
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.
关键词	BiVO4 Photocatalysis Plasma treatment Oxygen vacancies Bi-0 Photoactivity
DOI	10.1016/j.jallcom.2021.161883
关键词[WOS]	PERFORMANCE ; FABRICATION ; INTEGRATION ; REDUCTION ; OXIDATION ; OXIDE
收录类别	SCI
语种	英语
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]
项目资助者	Science and Technology Department of Sichuan Province ; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000706789000002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/125638
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).