期刊
NEW JOURNAL OF CHEMISTRY
卷 36, 期 12, 页码 2593-2598出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nj40770a
关键词
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资金
- National Science Foundation of China [21071146, 51002155]
- Natural Science Foundation of Hebei Province [E2010001932]
- National Key Technology RD Program [2011BAC06B09]
Novel ZnO@ZnS hollow dumbbells-graphene composites have been successfully fabricated through a polymer-assisted hydrothermal reaction and sulfurization treatment. Because of the formation of heterostructures and a new transfer pathway of electrons from ZnS to graphene, the composites show significantly superior photocatalytic activities than ZnO dumbbells and ZnO@ZnS hollow dumbbells. The improved electric conductivity and the improved adsorption and diffusion of gas molecules also endow them with excellent sensitivity and selectivity toward alcohol gas. This paper presents a promising method to fabricate semiconductor heterostructure-graphene composites for high-efficiency photocatalysts and gas sensors.
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