中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: The enhancement of TiO2 photocatalytic activity by hydrogen thermal treatment
作者: Liu, H;  Ma, HT;  Li, XZ;  Li, WZ;  Wu, M;  Bao, XH
关键词: photocatalysis ;  titanium dioxide ;  hydrogen treatment ;  photodegradation
刊名: CHEMOSPHERE
发表日期: 2003
卷: 50, 期:1, 页:39-46
收录类别: SCI
文章类型: Article
部门归属: 801
项目归属: 801
产权排名: 2;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: In this study, conventional TiO2 powder was heated in hydrogen (H-2) gas at a high temperature as pretreatment. The photoactivity of the treated TiO2 samples was evaluated in the photodegradation of sulfosalicylic acid (SSA) in aqueous suspension. The experimental results demonstrated that the photodegradation rates of SSA were significantly enhanced by using the H-2-treated TiO2 catalysts and an optimum temperature for the H-2 treatment was found to be of 500-600 degreesC. The in situ electron paramagnetic resonance (EPR) signal intensity of oxygen vacancies (OV) and trivalent titanium (Ti3+) associated with the photocatalytic activity was studied. The results proved the presence of OV and Ti3+ in the lattice of the H2-treated TiO2 and indicated that both were contributed to the enhancement of photocatalytic activity. Moreover, the experimental results presented that the EPR signal intensity of OV and Ti3+ in the H-2-treated TiO2 samples after 10 months storage was still significant higher than that in the untreated TiO2 catalyst. The experiment also demonstrated that the significant enhancement occurred in the photodegradation of phenol using the H-2-treated TiO2. (C) 2002 Elsevier Science Ltd. All rights reserved.
关键词[WOS]: ELECTRON-PARAMAGNETIC-RES ;  TITANIUM-DIOXIDE ;  SEMICONDUCTOR ;  DEGRADATION ;  KINETICS ;  RUTILE ;  WATER ;  PHOTOELECTROCHEMISTRY ;  REDUCTION ;  CATALYSIS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000180077300006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/83005
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
20031XKG8J0U1N.pdf(169KB)----开放获取--View Download

作者单位: 1.Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Liu, H,Ma, HT,Li, XZ,et al. The enhancement of TiO2 photocatalytic activity by hydrogen thermal treatment[J]. CHEMOSPHERE,2003,50(1):39-46.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Liu, H]'s Articles
 [Ma, HT]'s Articles
 [Li, XZ]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Liu, H]‘s Articles
 [Ma, HT]‘s Articles
 [Li, XZ]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: 20031XKG8J0U1N.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace