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学科主题: 物理化学
题名: Surface phase of TiO2 modified with La2O3 and its effect on the photocatalytic H-2 evolution
作者: Zhang, Yangyang1;  Zhang, Jing1;  Xu, Qian2;  Yan, Song1;  Zhao, Shanlin1;  Luo, Genxiang1;  Li, Can2
通讯作者: 张静 ;  李灿
关键词: Composites ;  Chemical synthesis ;  Raman spectroscopy ;  Catalytic properties
刊名: MATERIALS RESEARCH BULLETIN
发表日期: 2014-05-01
DOI: 10.1016/j.materresbull.2014.02.013
卷: 53, 期:1, 页:107-115
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
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.
关键词[WOS]: TITANIUM-DIOXIDE ;  RUTILE TIO2 ;  HETEROGENEOUS PHOTOCATALYSIS ;  TRANSFORMATION BEHAVIOR ;  NANOSTRUCTURED TITANIA ;  NANOCRYSTALLINE TIO2 ;  HYDROTHERMAL METHOD ;  AQUEOUS SUSPENSION ;  ORGANIC-COMPOUNDS ;  PLASMA SPRAY
语种: 英语
WOS记录号: WOS:000336018000019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143858
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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

Recommended Citation:
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.
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