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: Highly efficient photocatalysts constructed by rational assembly of dual-cocatalysts separately on different facets of BiVO4
作者: Li, Rengui1, 2;  Han, Hongxian1;  Zhang, Fuxiang1;  Wang, Donge1;  Li, Can1
刊名: ENERGY & ENVIRONMENTAL SCIENCE
发表日期: 2014-04-01
DOI: 10.1039/c3ee43304h
卷: 7, 期:4, 页:1369-1376
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Multidisciplinary ;  Energy & Fuels ;  Engineering, Chemical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering ;  Environmental Sciences & Ecology
英文摘要: Cocatalysts play important roles in promoting the catalytic reactions of semiconductor photocatalysts. Especially, deposition of dual cocatalysts, i.e., oxidation and reduction cocatalysts, onto a semiconductor photocatalyst can significantly improve its photocatalytic activity due to the synergetic effect of rapid consumption of photogenerated electrons and holes. However, in most cases, the cocatalysts are randomly deposited onto the semiconductor photocatalysts, where the cocatalysts cannot function fully. Herein, based on the findings that photogenerated electrons and holes can be spatially separated onto the different facets of BiVO4, we have successfully prepared two types of photocatalysts ( M/MnOx/ BiVO4 and M/Co3O4/ BiVO4, where M stands for noble metals) with reduction and oxidation cocatalysts selectively deposited onto the {010} and {110} facets of BiVO4 by a photo-deposition method. Remarkably enhanced photocatalytic activitieswere observed for such assembled photocatalysts in control experiments of photocatalytic water oxidation and photocatalytic degradation of methyl orange and rhodamine B. In-depth investigations show that the enhanced photocatalytic performances are due to not only the intrinsic nature of charge separation between the {010} and {110} facets of BiVO4, but also the synergetic effect of dual-cocatalysts deposited onto the different facets of BiVO4. This work further proves the feasibility of the general concepts for approaching efficient artificial photosynthesis systems, namely, engineering of crystal-based photocatalysts by selective deposition of suitable reduction and oxidation cocatalysts onto the different facets of light absorbing semiconductor crystals.
关键词[WOS]: HYDROGEN-PRODUCTION ;  WATER OXIDATION ;  VISIBLE-LIGHT ;  TIO2 PHOTOCATALYSIS ;  DEGRADATION ;  CATALYSTS ;  ROLES
语种: 英语
WOS记录号: WOS:000333205800011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145451
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:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Li, Rengui,Han, Hongxian,Zhang, Fuxiang,et al. Highly efficient photocatalysts constructed by rational assembly of dual-cocatalysts separately on different facets of BiVO4[J]. ENERGY & ENVIRONMENTAL SCIENCE,2014,7(4):1369-1376.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Li, Rengui]'s Articles
 [Han, Hongxian]'s Articles
 [Zhang, Fuxiang]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Li, Rengui]‘s Articles
 [Han, Hongxian]‘s Articles
 [Zhang, Fuxiang]‘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 
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