A facile one-step electrochemical strategy of doping iron, nitrogen, and fluorine into titania nanotube arrays with enhanced visible light photoactivity

doi:10.1016/j.jhazmat.2015.03.049

CORC > 北京大学 > 环境科学与工程学院

	A facile one-step electrochemical strategy of doping iron, nitrogen, and fluorine into titania nanotube arrays with enhanced visible light photoactivity
	Hua Zulin ; Dai Zhangyan ; Bai Xue ; Ye Zhengfang ; Gu Haixin ; Huang Xin
刊名	journal of hazardous materials
	2015
关键词	Iron, nitrogen, and fluorine tri-doping,Synergistic effect,TiO(2) nanotube array,Visible light photoactivity
DOI	10.1016/j.jhazmat.2015.03.049
英文摘要	Highly ordered iron, nitrogen, and fluorine tri-doped TiO2 (Fe, (N, F)-TiO2) nanotube arrays were successfully synthesized by a facile one-step electrochemical method in an NH4F electrolyte containing Fe ions. The morphology, structure, composition, and photoelectrochemical property of the as-prepared nanotube arrays were characterized by various methods. The photoactivities of the samples were evaluated by the degradation of phenol in an aqueous solution under visible light. Tri-doped TiO2 showed higher photoactivities than undoped TiO2 under visible light. The optimum Fe(3+) doping amount at 0.005M exhibited the highest photoactivity and exceeded that of undoped TiO2 by a factor of 20 times under visible light. The formation of N 2p level near the valence band (VB) contributed to visible light absorption. Doping fluorine and appropriate Fe(3+) ions reduced the photogenerated electrons-holes recombination rate and enhanced visible light photoactivity. The X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) results indicated the presence of synergistic effects in Fe, N, and F tri-doped TiO2, which enhanced visible light photoactivity. The Fe, (N, F)-TiO2 photocatalyst exhibited high stability.Copyright ? 2015 Elsevier B.V. All rights reserved.; SCI(E); EI; PubMed; 0; ARTICLE; baixue10@tsinghua.org.cn; 112-21; 293
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/188126]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Hua Zulin,Dai Zhangyan,Bai Xue,et al. A facile one-step electrochemical strategy of doping iron, nitrogen, and fluorine into titania nanotube arrays with enhanced visible light photoactivity[J]. journal of hazardous materials,2015.
APA	Hua Zulin,Dai Zhangyan,Bai Xue,Ye Zhengfang,Gu Haixin,&Huang Xin.(2015).A facile one-step electrochemical strategy of doping iron, nitrogen, and fluorine into titania nanotube arrays with enhanced visible light photoactivity.journal of hazardous materials.
MLA	Hua Zulin,et al."A facile one-step electrochemical strategy of doping iron, nitrogen, and fluorine into titania nanotube arrays with enhanced visible light photoactivity".journal of hazardous materials (2015).