Light-triggered evolution of molecular clusters toward sub-nanoscale heterojunctions with high interface density

Herein, we report a simple, yet highly effective approach for constructing a new type of sub-nanoscale ZnS/ZnO heterojunction (∼2-4 nm) with highly rich interfaces by photoetching hybrid Zn-S-O molecular clusters. The obtained ZnS/ZnO heterojunctions with ZnS spheres decorated with ultrasmall amorph...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-07, Vol.55 (56), p.8146-8149
Main Authors: Xue, Chaozhuang, Zhang, Jiaxu, Wang, Xiang, Gu, Meng, Zhu, Yuanmin, Li, Dong-Sheng, Guo, Jun, Liu, Yang, Wu, Tao
Format: Article
Language:English
Subjects:
Catalysis
Construction materials
Crystallography
Heat treatment
Heterojunctions
Homology
Molecular clusters
Photoetching
Zinc oxide
Zinc sulfide
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Summary:Herein, we report a simple, yet highly effective approach for constructing a new type of sub-nanoscale ZnS/ZnO heterojunction (∼2-4 nm) with highly rich interfaces by photoetching hybrid Zn-S-O molecular clusters. The obtained ZnS/ZnO heterojunctions with ZnS spheres decorated with ultrasmall amorphous ZnO dots exhibit superior photocatalytic performance (∼94.0 μmol g −1 h −1 ), compared to nanoscale homologous samples obtained via conventional heat treatment (∼17.0-21.4 μmol g −1 h −1 ). Such a light-triggered molecular-cluster-to-heterojunction strategy provides a synthetic approach to building other sub-nanoscale hetero-structured materials for further promoting the catalytic-related applications. Pyridine-capped Zn-S-O molecular clusters are light-triggered into sub-nanoscale ZnS/ZnO heterojunctions with highly rich interfaces.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc03873f