Facet-Selective Deposition of Metal (M=Au, Pt, Pd) Nanoparticles on Co3 O4 Crystals: Magnetically Separable Photocatalyst with Improved Catalytic Performance

Qipeng Liu; Muhan Cao; Lei Chen; Xiaolei Yuan; Qixuan Zhong; Linzhong Wu; Di Yang; Huicheng Hu; Yong Xu; Qiao Zhang

doi:10.1002/cplu.201700527

Facet-Selective Deposition of Metal (M=Au, Pt, Pd) Nanoparticles on Co₃ O₄ Crystals: Magnetically Separable Photocatalyst with Improved Catalytic Performance

Chempluschem. 2018 May;83(5):334-338. doi: 10.1002/cplu.201700527. Epub 2018 Feb 1.

Authors

Qipeng Liu¹, Muhan Cao¹, Lei Chen¹, Xiaolei Yuan¹, Qixuan Zhong¹, Linzhong Wu¹, Di Yang¹, Huicheng Hu¹, Yong Xu¹, Qiao Zhang¹

Affiliation

¹ Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215000, P. R. China.

PMID: 31957354
DOI: 10.1002/cplu.201700527

Abstract

Depositing noble metals on specific facets of semiconductors can improve the separation of photoexcited hole-electron pairs during the photocatalytic reaction, resulting in enhanced photocatalytic performance. This work describes the selective deposition of noble metal nanoparticles (Au, Pt, Pd) on some specific facets of p-type Co₃ O₄ through a simple and facile photoassisted method. The deposition of Au nanoparticles (NPs) on {111} facets of Co₃ O₄ nanocrystals (NCs) can remarkably improve their photocatalytic activity towards water oxidation, which can be attributed to enhanced charge spatial separation. Moreover, the magnetically separated photocatalysts are good examples of new designed photocatalysts that can be recovered easily.

Keywords: Co3O4; facet selectivity; gold; nanomaterials; photocatalysis.

Abstract

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