Highly Efficient Photocatalytic Performance of Graphene-ZnO Quasi-Shell-Core Composite Material

doi:10.1021/am403149g

	Highly Efficient Photocatalytic Performance of Graphene-ZnO Quasi-Shell-Core Composite Material
	Bu, Yuyu 1; Chen, Zhuoyuan 1; Li, Weibing 2; Hou, Baorong 1; Chen, ZY
	2013-12-11
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	5 期号:23 页码:12361-12368
文章类型	Article
摘要	In the present paper, the graphene-ZnO composite with quasi-shell-core structure was successfully prepared using a one-step wet chemical method. The photocatalytic Rhodamine B degradation property and the photoelectrochemical performance of the graphene-ZnO quasi-shell-core composite are dependent on the amount of graphene oxide that is added. When the amount of graphene oxide added is 10 mg, the graphene-ZnO quasi-shell core composite possesses the optimal photocatalytic degradation efficiency and the best photoelectrochemical performance. An efficient interfacial electric field is established on the interface between the graphene and ZnO, which significantly improves the separation efficiency of the photogenerated electron-hole pairs and thus dramatically increases its photoelectrochemical performance. In addition to the excellent photocatalytic and photoelectrochemical properties, the electron migration ability of the grephene-ZnO quasi-shell-core composite is significantly enhanced due to the graphene coating on ZnO surface; therefore, this material has great potential for application as a substrate material to accept electrons in dye solar cell and in narrow bandgap semiconductor quantum dot sensitized solar cells.; In the present paper, the graphene-ZnO composite with quasi-shell-core structure was successfully prepared using a one-step wet chemical method. The photocatalytic Rhodamine B degradation property and the photoelectrochemical performance of the graphene-ZnO quasi-shell-core composite are dependent on the amount of graphene oxide that is added. When the amount of graphene oxide added is 10 mg, the graphene-ZnO quasi-shell core composite possesses the optimal photocatalytic degradation efficiency and the best photoelectrochemical performance. An efficient interfacial electric field is established on the interface between the graphene and ZnO, which significantly improves the separation efficiency of the photogenerated electron-hole pairs and thus dramatically increases its photoelectrochemical performance. In addition to the excellent photocatalytic and photoelectrochemical properties, the electron migration ability of the grephene-ZnO quasi-shell-core composite is significantly enhanced due to the graphene coating on ZnO surface; therefore, this material has great potential for application as a substrate material to accept electrons in dye solar cell and in narrow bandgap semiconductor quantum dot sensitized solar cells.
关键词	Graphene Zno Quasi-shell-core Photocatalysis Photoelectrochemistry
学科领域	Science & Technology - Other Topics ; Materials Science
DOI	10.1021/am403149g
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000328439600020
WOS关键词	VISIBLE-LIGHT ; ZINC-OXIDE ; PHOTOELECTROCHEMICAL PROPERTIES ; HYDROGEN GENERATION ; THIN-FILMS ; DOPED ZNO ; HYBRID
WOS标题词	Science & Technology ; Technology
引用统计	被引频次：172[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16369
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Chen, ZY
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, Qingdao 266042, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Bu, Yuyu,Chen, Zhuoyuan,Li, Weibing,et al. Highly Efficient Photocatalytic Performance of Graphene-ZnO Quasi-Shell-Core Composite Material[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(23):12361-12368.
APA	Bu, Yuyu,Chen, Zhuoyuan,Li, Weibing,Hou, Baorong,&Chen, ZY.(2013).Highly Efficient Photocatalytic Performance of Graphene-ZnO Quasi-Shell-Core Composite Material.ACS APPLIED MATERIALS & INTERFACES,5(23),12361-12368.
MLA	Bu, Yuyu,et al."Highly Efficient Photocatalytic Performance of Graphene-ZnO Quasi-Shell-Core Composite Material".ACS APPLIED MATERIALS & INTERFACES 5.23(2013):12361-12368.

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