Mechanistic insights into TiO2 thickness in Fe3O4@TiO2-GO composites for enrofloxacin photodegradation

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Mechanistic insights into TiO2 thickness in Fe3O4@TiO2-GO composites for enrofloxacin photodegradation
	Yu, Yaqin; Yan, Li; Cheng, Jiemin; Jing, Chuanyong
刊名	CHEMICAL ENGINEERING JOURNAL
	2017-04-01
卷号	325 期号:0 页码:647-654
关键词	Multifunctional Composites Tio2 Thickness Enrofloxacin Photocatalytic Degradation
英文摘要	Multifunctional Fe3O4@TiO2-GO (FTG) magnetic composites have extensive application potential. However, the effect of TiO2 shell thickness as well as its underlying mechanism remains murky and motivates our study. Herein, FTG composites with the optimized TiO2 shell thickness were synthesized. The characterization results show that the FTG photocatalysts had the advantages of easy magnetic separation, extended light absorption range (>600 nm), and efficient charge separation properties. The photo catalytic activity of FIG was performed for photo-degradation of enrofloxacin (ENR) under visible light. The FTG composites with TiO2 layer thickness of 17 nm exhibited the highest photocatalytic activity, and significant recycle efficiency. The photocatalytic mechanism, as characterized using electrochemistry, ESR, and in-situ QXAFS analysis, indicates that this optimal TiO2 shell thickness delicately balances the generation and effective transport of electrons, and therefore is optimal for the production of hydroxyl radicals. This study provides new insights into the fabrication of TiO2-based materials and their photocatalytic application. (C) 2017 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39358]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Yu, Yaqin,Yan, Li,Cheng, Jiemin,et al. Mechanistic insights into TiO2 thickness in Fe3O4@TiO2-GO composites for enrofloxacin photodegradation[J]. CHEMICAL ENGINEERING JOURNAL,2017,325(0):647-654.
APA	Yu, Yaqin,Yan, Li,Cheng, Jiemin,&Jing, Chuanyong.(2017).Mechanistic insights into TiO2 thickness in Fe3O4@TiO2-GO composites for enrofloxacin photodegradation.CHEMICAL ENGINEERING JOURNAL,325(0),647-654.
MLA	Yu, Yaqin,et al."Mechanistic insights into TiO2 thickness in Fe3O4@TiO2-GO composites for enrofloxacin photodegradation".CHEMICAL ENGINEERING JOURNAL 325.0(2017):647-654.