A Co3O4-embedded porous ZnO rhombic dodecahedron prepared using zeolitic imidazolate frameworks as precursors for CO2 photoreduction

Tao Wang, Li Shi, Jing Tang, Victor Malgras, Shunsuke Asahina, Guigao Liu, Huabin Zhang, Xianguang Meng, Kun Chang, Jianping He, Osamu Terasaki, Yusuke Yamauchi, Jinhua Ye

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69 Scopus citations

Abstract

Metal-organic frameworks (MOFs) are attracting considerable attention for their use as both the precursor and the template to prepare metal oxides or carbon-based materials. For the first time in this paper, the core-shell ZIF-8@ZIF-67 crystals are thermally converted into porous ZnO@Co3O4 composites by combining a seed-mediated growth process with a two-step calcination. The designed porous ZnO@Co3O4 composites exhibited the highest photocatalytic activity with an excellent stability for the reduction of CO2 among the commonly reported composite photocatalysts. Their superior photocatalytic performance is demonstrated to be resulting from the unique porous structure of ZnO@Co3O4 and the co-catalytic function of Co3O4 which can effectively suppress the photocorrosion of ZnO.
Original languageEnglish (US)
Pages (from-to)6712-6720
Number of pages9
JournalNanoscale
Volume8
Issue number12
DOIs
StatePublished - Mar 28 2016
Externally publishedYes

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