Study on Photocatalytic Degradation of Acid Red 73 by Fe3O4@TiO2 Exposed (001) Facets

doi:10.3390/app12073574

	Study on Photocatalytic Degradation of Acid Red 73 by Fe3O4@TiO2 Exposed (001) Facets
	Sun, Li 1; Zhou, Quan 1; Mao, Jiaheng 1; Ouyang, Xingyu 1; Yuan, Zhigang 1; Song, Xiaoxiang 1; Gong, Wenbang 1; Mei, Shunqi 1; Xu, Wei 2
刊名	APPLIED SCIENCES-BASEL
	2022-04-01
卷号	12
关键词	Fe3O4@TiO2 Acid Red 73 photocatalytic degradation
DOI	10.3390/app12073574
通讯作者	Yuan, Zhigang(yuanzhigang@wtu.edu.cn)
英文摘要	Water pollution can be treated through the photocatalytic reaction of TiO2 or TiO2 compounds. A solvothermal method was used to prepare Fe3O4 and Fe3O4@TiO2 composite photocatalyst with (001) high-energy facets exposed in the anatase phase. TiO2 and Fe3O4@TiO2 were characterized by field emission scanning electron microscopy, ultraviolet-visible diffuse reflectance spectroscopy, X-ray diffraction spectroscopy and Raman spectroscopy. It was found that the composite Fe3O4@TiO2 can reduce the band gap and maintain a certain proportion of (001) high-energy facet exposure. The band gaps of Fe3O4@TiO2 and TiO2 are 2.5 eV and 2.9 eV, respectively. The exposure percentages of (001) facets of Fe3O4@TiO2 and TiO2 are about 25.2% and 12.1%, respectively. Fe3O4@TiO2 was used for photocatalytic degradation of Acid Red 73, and it was found that Fe3O4@TiO2 could improve the efficiency of photocatalytic degradation of Acid Red 73. The photocatalytic degradation rates of Fe3O4@TiO2 and TiO2 at 24 min were 93.56% and 74.47%, respectively. The cycle experiment of photocatalytic degradation of Acid Red 73 by Fe3O4@TiO2 showed that at the fifth cycle, the rate of dye degradation decreased to 77.05%, but the rate of dye degradation can reach more than 90% after self-cleaning treatment. The photocatalytic degradation mechanism is explained by the energy band theory and the first-order kinetic equation model.
资助项目	National Natural Science Foundation of China[11904268] ; Hubei Province Education Department of China[Q20181702]
WOS关键词	N-DOPED TIO2 ; NANOCOMPOSITES ; PERCENTAGE ; WATER
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000781295500001
资助机构	National Natural Science Foundation of China ; Hubei Province Education Department of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128637]
专题	中国科学院合肥物质科学研究院
通讯作者	Yuan, Zhigang
作者单位	1.Wuhan Text Univ, Hubei Key Lab Digital Text Equipment, Wuhan 430073, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Sun, Li,Zhou, Quan,Mao, Jiaheng,et al. Study on Photocatalytic Degradation of Acid Red 73 by Fe3O4@TiO2 Exposed (001) Facets[J]. APPLIED SCIENCES-BASEL,2022,12.
APA	Sun, Li.,Zhou, Quan.,Mao, Jiaheng.,Ouyang, Xingyu.,Yuan, Zhigang.,...&Xu, Wei.(2022).Study on Photocatalytic Degradation of Acid Red 73 by Fe3O4@TiO2 Exposed (001) Facets.APPLIED SCIENCES-BASEL,12.
MLA	Sun, Li,et al."Study on Photocatalytic Degradation of Acid Red 73 by Fe3O4@TiO2 Exposed (001) Facets".APPLIED SCIENCES-BASEL 12(2022).