A fluorine free method to synthesize nitrogen and lanthanum co-doped TiO2 nanocrystals with exposed {001} facets for enhancing visible-light photocatalytic activity

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	A fluorine free method to synthesize nitrogen and lanthanum co-doped TiO2 nanocrystals with exposed {001} facets for enhancing visible-light photocatalytic activity
	Yu, Lian; Yang, Xiaofang; He, Jie; He, Yi; Wang, Dongsheng
刊名	JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
	2015-04
卷号	399 期号:0 页码:42-47
关键词	Hydrothermal reaction TiO2 nanosheets N Fluorine free Visible light photocatalysis La co-doping
英文摘要	This study introduces a simple and fluorine free route to synthesize nitrogen and lanthanum co-doped TiO2 nanocrystals with exposed {0 0 1} facets through one-step hydrothermal method. The microstructure, chemical composition, and photocatalytic property of the co-doped TiO2 nanosheets were analyzed using XRD, FESEM, TEM, XPS and UV-vis. The experimental results indicated that N had been successfully doped into TiO2 lattice, while La was likely to form a binary nanocomposite with TiO2. The co-doped TiO2 nanosheets showed an additional visible light absorption band starting from 400 nm, which could improve the visible light photocatalytic activity of the sample. As the shape-controlling agent, DEA plays a crucial role in the formation of {0 0 1} facets. N and La co-doping could produce a synergistic effect. N doping can narrow the band gap of anatase TiO2 and increase the utilization efficiency of visible light, while La doping can enhance the separation efficiency of photo-induced electrons and holes. N and La co-doped TiO2 nanosheets exhibited higher visible light photocatalytic activity compared with P25, N doped TiO2 nanosheets and N, La co-doped TiO2 nanoparticles with the same doping concentration. In addition, N and La co-doped TiO2 nanosheets showed well recycling performance. (c) 2015 Elsevier B.V. All rights reserved.
研究领域[WOS]	Chemistry, Physical
WOS记录号	WOS:000352115400006
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32718]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Yu, Lian,Yang, Xiaofang,He, Jie,et al. A fluorine free method to synthesize nitrogen and lanthanum co-doped TiO2 nanocrystals with exposed {001} facets for enhancing visible-light photocatalytic activity[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2015,399(0):42-47.
APA	Yu, Lian,Yang, Xiaofang,He, Jie,He, Yi,&Wang, Dongsheng.(2015).A fluorine free method to synthesize nitrogen and lanthanum co-doped TiO2 nanocrystals with exposed {001} facets for enhancing visible-light photocatalytic activity.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,399(0),42-47.
MLA	Yu, Lian,et al."A fluorine free method to synthesize nitrogen and lanthanum co-doped TiO2 nanocrystals with exposed {001} facets for enhancing visible-light photocatalytic activity".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 399.0(2015):42-47.