Issue 9, 2023

Fabrication of a highly dispersed Co3O4-modified MOF-derived ZnO@ZnS porous heterostructure for efficient photocatalytic hydrogen production

Abstract

A porous and highly dispersed Co3O4-modified ZnO@ZnS heterostructure (Co3O4–ZnO@ZnS) was developed by the simple calcination and sulfurization of the designed bimetallic ZnCo-ZIF@ZIF-8. The charge separation and transfer in this novel heterostructure were significantly improved owing to the highly dispersed Co3O4 and the porous structure. The hydrogen production rate of Co3O4–ZnO@ZnS was 1816.3 μmol g−1 h−1 with Na2S–Na2SO3 as the sacrificial agent under a Xe lamp, which was 1.5 times greater than that of ZnO@ZnS (1215.6 μmol g−1 h−1). Moreover, the photocatalytic performance of Co3O4–ZnO@ZnS was further improved by loading a Pt cocatalyst, with the hydrogen production rate reaching 3269.3 μmol g−1 h−1. This method can be used to design other effective photocatalytic heterostructures for water splitting.

Graphical abstract: Fabrication of a highly dispersed Co3O4-modified MOF-derived ZnO@ZnS porous heterostructure for efficient photocatalytic hydrogen production

Supplementary files

Article information

Article type
Paper
Submitted
13 Dec 2022
Accepted
16 Jan 2023
First published
06 Feb 2023

CrystEngComm, 2023,25, 1358-1364

Fabrication of a highly dispersed Co3O4-modified MOF-derived ZnO@ZnS porous heterostructure for efficient photocatalytic hydrogen production

W. Wang, W. Xiao, Y. Zhu, S. Liu, S. Wang and C. Chen, CrystEngComm, 2023, 25, 1358 DOI: 10.1039/D2CE01663J

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