Issue 36, 2021

Core–shell Cu1.94S–MnS nanoheterostructures synthesized by cation exchange for enhanced photocatalytic hydrogen evolution

Abstract

Nanoheterostructures synthesized by cation exchange present the integration of synergetic designs into high-quality, well-defined catalysts for enhanced photocatalytic hydrogen evolution. In this study, we synthesise core–shell Cu1.94S–MnS nanoheterostructured photocatalysts using a cation exchange reaction by employing djurleite Cu1.94S nanospheres as starting templates. Under simulated sunlight, the heterostructures exhibit a hydrogen evolution efficiency as high as 878.1 μmol h−1 g−1, representing 60-fold and 41-fold enhancement compared with pure Cu1.94S and MnS, respectively. As verified by photoelectrochemical characterization, the improved hydrogen production activity of the Cu1.94S–MnS nanoheterostructures can be attributed to their stronger light response characteristics and more effective charge transfer ability, which opens up opportunities to promote the photocatalytic performance using rationally designed nanostructures.

Graphical abstract: Core–shell Cu1.94S–MnS nanoheterostructures synthesized by cation exchange for enhanced photocatalytic hydrogen evolution

Article information

Article type
Paper
Submitted
01 jun 2021
Accepted
12 jul 2021
First published
13 jul 2021

CrystEngComm, 2021,23, 6291-6299

Core–shell Cu1.94S–MnS nanoheterostructures synthesized by cation exchange for enhanced photocatalytic hydrogen evolution

C. Li, W. Wang, Y. Yang, S. Liu, C. Zhu and Q. Tian, CrystEngComm, 2021, 23, 6291 DOI: 10.1039/D1CE00717C

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