DICP OpenIR
Subject Area物理化学
Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting
Wang, Xiang; Shen, Shuai; Jin, Shaoqing; Yang, Jingxiu; Li, Mingrun; Wang, Xiuli; Han, Hongxian; Li, Can; Li C(李灿)
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
2013
DOI10.1039/c3cp53333f
Volume15Issue:44Pages:19380-19386
Indexed BySCI
Cooperation Status
SubtypeArticle
Department5
Funding Project503
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Physics
WOS KeywordVISIBLE-LIGHT IRRADIATION ; RESOLVED INFRARED-ABSORPTION ; BOND-VALENCE DETERMINATION ; PB(II) SORPTION PRODUCTS ; SURFACE COMPLEXATION ; HYDROGEN-PRODUCTION ; O-2 EVOLUTION ; NATAO3 PHOTOCATALYSTS ; SRTIO3 PHOTOCATALYSTS ; GA2O3 PHOTOCATALYST
AbstractZn-doped and Pb-doped beta-Ga2O3-based photocatalysts were prepared by an impregnation method. The photocatalyst based on the Zn-doped beta-Ga2O3 shows a greatly enhanced activity in water splitting while the Pb-doped beta-Ga2O3 one shows a dramatic decrease in activity. The effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting were investigated by HRTEM, XPS and time-resolved IR spectroscopy. A ZnGa2O4-beta-Ga2O3 heterojunction is formed in the surface region of the Zn-doped beta-Ga2O3 and a slower decay of photogenerated electrons is observed. The ZnGa2O4-beta-Ga2O3 heterojunction exhibits type-II band alignment and facilitates charge separation, thus leading to an enhanced photocatalytic activity for water splitting. Unlike Zn2+ ions, Pb2+ ions are coordinated by oxygen atoms to form polyhedra as dopants, resulting in distorted surface structure and fast decay of photogenerated electrons of beta-Ga2O3. These results suggest that the Pb dopants act as charge recombination centers expediting the recombination of photogenerated electrons and holes, thus decreasing the photocatalytic activity.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
URL查看原文
WOS IDWOS:000326220000034
Citation statistics
Cited Times:67[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119573
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi C(李灿)
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiang,Shen, Shuai,Jin, Shaoqing,et al. Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2013,15(44):19380-19386.
APA Wang, Xiang.,Shen, Shuai.,Jin, Shaoqing.,Yang, Jingxiu.,Li, Mingrun.,...&李灿.(2013).Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,15(44),19380-19386.
MLA Wang, Xiang,et al."Effects of Zn2+ and Pb2+ dopants on the activity of Ga2O3-based photocatalysts for water splitting".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 15.44(2013):19380-19386.
Files in This Item:
File Name/Size DocType Version Access License
2013UHHe4bYU3c.PDF(2606KB) 开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xiang]'s Articles
[Shen, Shuai]'s Articles
[Jin, Shaoqing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xiang]'s Articles
[Shen, Shuai]'s Articles
[Jin, Shaoqing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xiang]'s Articles
[Shen, Shuai]'s Articles
[Jin, Shaoqing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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