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Core/shell structured Zn/ZnO nanoparticles synthesized by gaseous laser ablation with enhanced photocatalysis efficiency
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Number of Authors: 52018 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 442, p. 101-105Article in journal (Refereed) Published
Abstract [en]

Zinc oxide (ZnO) is a competitive candidate in semiconductor photocatalysts, only if the efficiency could be fully optimized especially by tailored nanostructures. Here we report a kind of core/shell structured Zn/ZnO nanoparticles with enhanced photocatalysis efficiency, which were synthesized by a highly-productive gaseous laser ablation method. The nanodroplets generated by laser ablation would be reduced to zinc in the protective atmosphere, and further be oxidized at surface to form a specific core/shell structured Zn/ZnO nanoparticles within seconds. Thanks to the formation of this Zn-ZnO Schottky junction, the photocatalysis degradation efficiency of such core/shell Zn/ZnO nanostructure is significantly improved owing to the enhanced visible light absorption and inhibited carrier recombination by introducing the metallic zinc.

Place, publisher, year, edition, pages
2018. Vol. 442, p. 101-105
Keywords [en]
Zinc, Zinc oxide, Laser ablation, Core-shell nanostructure, Photocatalysis, Defect
National Category
Chemical Sciences Materials Engineering Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-155876DOI: 10.1016/j.apsusc.2018.02.143ISI: 000428294500013OAI: oai:DiVA.org:su-155876DiVA, id: diva2:1203152
Available from: 2018-05-02 Created: 2018-05-02 Last updated: 2018-05-02Bibliographically approved

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Shen, Zhijian
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Department of Materials and Environmental Chemistry (MMK)
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