Cover | A robust CdS/In2O3 hierarchical heterostructure

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▲ Issue 2, Vol 6 | Inside Front Cover

Research Article

A robust CdS/In₂O₃ hierarchical heterostructure derived from a metal–organic framework for efficient visible-light photocatalytic hydrogen production

Authors

Jia-Tong Ren, Kun Yuan, Ke Wu, Liang Zhou and Ya-Wen Zhang(张亚文)*a

Corresponding authors affiliations

a) 北京分子科学国家研究中心，稀土材料化学及应用国家重点实验室，北京大学香港大学稀土材料和生物无机化学联合实验室，北京大学化学与分子工程学院

Citation

Inorg. Chem. Front.,2019,6, 366-375

http://dx.doi.org/10.1039/C8QI01202D

Abstract

Building sulfide/oxide heterostructure photocatalysts is not only beneficial for the separation and transfer of photo-generated carriers in photocatalytic reactions but also an effective means of broadening the light absorption range of oxides by introducing narrow-bandgap sulfides. However, the construction of highly-efficient sulfide/oxide heterostructures with intimate and extensive contact between different components for visible-light photocatalytic hydrogen production remains a challenge. Herein, a novel sulfide/oxide heterostructure of CdS/In₂O₃ hierarchical nanotubes was synthesized starting from a metal–organic framework (MOF). In such a heterostructure, CdS and In₂O₃ are integrated by close contact of corresponding small nanoparticles, which is beneficial for the separation and transfer of photo-generated charge carriers. Benefiting from the intimate interface, suitable energy band structure, as well as the inherent advantages of MOFs-derived nanomaterials, the optimal CdS/In₂O₃ hierarchical nanotubes showed the best activity in visible-light photocatalytic hydrogen production without any cocatalysts, which was 78.6 times and 16.9 times higher than activities of In₂O₃ hierarchical nanotubes and CdS nanoparticles, respectively.

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