Surface phase of TiO2 modified with La2O3 and its effect on the photocatalytic H-2 evolution

	Surface phase of TiO2 modified with La2O3 and its effect on the photocatalytic H-2 evolution
	Zhang, Yangyang 1; Zhang, Jing 1; Xu, Qian 2; Yan, Song 1; Zhao, Shanlin 1; Luo, Genxiang 1; Li, Can 2
刊名	materials research bulletin
	2014-05-01
卷号	53 期号:1 页码:107-115
关键词	Composites Chemical synthesis Raman spectroscopy Catalytic properties
通讯作者	张静 ; 李灿
英文摘要	tio2 nanoparticles modified with la2o3 were prepared by an impregnation method using anatase tio2 support (la2o3/tio2) or amorphous ti(oh)(4) support (la2o3/ti(oh)(4)). the bulk and surface crystalline phases of la2o3/tio2 (or la2o3/ti(oh)(4)) have been characterized by x-ray powder diffraction.(xrd) and uv raman spectroscopy. besides, morphology and particle size of la2o3/tio2 and la2o3/ti(oh)(4) samples have been determined by tem (transmission electron microscope) and brunauer-emmett-teller (bet), respectively. it is found that the phase transformation and increase of the particle size of tio2 can be more effectively inhibited in the la2o3/tio2 than in the la2o3/ti(oh)(4). photocatalytic experiments indicated that the la2o3/tio2 (or la2o3/ti(oh)(4)) samples with surface anatase phase have the similar overall photocatalytic activities. moreover, it is found that the high crystallinity of surface anatase phase is benefit for the high photocatalytic activity of tio2 modified with la2o3. (c) 2014 elsevier ltd. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; technology
类目[WOS]	materials science, multidisciplinary
研究领域[WOS]	materials science
关键词[WOS]	titanium-dioxide ; rutile tio2 ; heterogeneous photocatalysis ; transformation behavior ; nanostructured titania ; nanocrystalline tio2 ; hydrothermal method ; aqueous suspension ; organic-compounds ; plasma spray
收录类别	SCI
语种	英语
WOS记录号	WOS:000336018000019
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/143858]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Liaoning 113001, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yangyang,Zhang, Jing,Xu, Qian,et al. Surface phase of TiO2 modified with La2O3 and its effect on the photocatalytic H-2 evolution[J]. materials research bulletin,2014,53(1):107-115.
APA	Zhang, Yangyang.,Zhang, Jing.,Xu, Qian.,Yan, Song.,Zhao, Shanlin.,...&Li, Can.(2014).Surface phase of TiO2 modified with La2O3 and its effect on the photocatalytic H-2 evolution.materials research bulletin,53(1),107-115.
MLA	Zhang, Yangyang,et al."Surface phase of TiO2 modified with La2O3 and its effect on the photocatalytic H-2 evolution".materials research bulletin 53.1(2014):107-115.