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Title: Facile synthesis of multi-shelled ZnS-CdS cages with enhanced photoelectrochemical performance for solar energy conversion
Authors: Zhang, Peng
Guan, Bu Yuan
Yu, Le
Lou, David Xiong Wen
Keywords: Engineering::Chemical engineering
Issue Date: 2017
Source: Zhang, P., Guan, B. Y., Yu, L., & Lou, D. W. X. (2018). Facile synthesis of multi-shelled ZnS-CdS cages with enhanced photoelectrochemical performance for solar energy conversion. Chem, 4(1), 162-173. doi:10.1016/j.chempr.2017.10.018
Journal: Chem
Abstract: Constructing heterojunctions and designing advanced structures are effective approaches to enhancing the photoelectrochemical performance of semiconductor photocatalysts for solar energy conversion. Here, we have developed a sequential chemical etching, sulfidation, and cation-exchange strategy for preparing multi-shelled ZnS-CdS rhombic dodecahedral cages (RDCs) with tunable compositions and shell numbers from 1 to 5. Yolk-shelled Zn-based zeolitic imidazolate (ZIF-8) RDCs are first synthesized by chemical etching of ZIF-8 rhombic dodecahedrons. Sulfidation of the yolk-shelled ZIF-8 RDCs leads to the formation of multi-shelled ZnS RDCs, which are further converted into multi-shelled ZnS-CdS RDCs via a cation-exchange reaction. The composition of the multi-shelled ZnS-CdS RDCs can be tuned by varying the cation-exchange reaction time, and the shell number can be adjusted by changing the size of ZIF-8 precursors. Because of the heterojunction formed and the unique hollow structure, these triple-shelled ZnS-CdS RDCs with optimized composition show enhanced photoelectrochemical performance for solar water splitting.
ISSN: 2451-9294
DOI: 10.1016/j.chempr.2017.10.018
Rights: © 2017 Elsevier Inc. All rights reserved. This paper was published by Cell Press in Chem and is made available with permission of Elsevier Inc.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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