Enhanced photocatalytic hydrogen evolution over bimetallic zeolite imidazole framework-encapsulated CdS nanorods

Dalton Transactions : an International Journal of Inorganic Chemistry
Jia-Hui ZhaoKui Li

Abstract

A hybrid of ZIF-8 with CdS nanorods could increase the transport efficiency of photo-generated charge carriers and the surface area. Notably, through doping Zn ions with a transition metal, in this work, we fabricated a bimetallic ZnM-ZIF (M = Ni, Cu, or Co)-encapsulated CdS nanorod heterostructure for the first time. Compared with ZIF-8, the bimetallic ZIF exhibited a modulated structure, flat band position, and lower overpotential for the hydrogen evolution reaction. ZnM-ZIF not only improved the transfer of water and light, but also boosted the separation of charge carriers. Consequently, the optimized CdS-ZnM-ZIF samples with Cu, Ni, and Co doping showed corresponding photocatalytic hydrogen activities 44, 92, and 59 times larger than that of pristine CdS nanorods. This work provides a new method for better utilization of porous MOF crystals for photocatalysts.

References

May 23, 2014·Chemical Communications : Chem Comm·Liyong ChenChunying Duan
May 14, 2016·ACS Applied Materials & Interfaces·Kui LiYa-Qian Lan
Mar 7, 2017·Chemical Communications : Chem Comm·Souvik RoySascha Ott
Apr 25, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·You XuRong Xu
Jul 21, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiu TangYa-Qian Lan
Nov 28, 2017·Advanced Materials·Long JiaoQiang Xu
Jul 26, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Tian WenWolfgang Schmitt

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Citations

Aug 26, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Hong-Liang TangFeng-Ming Zhang

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Methods Mentioned

BETA
X-ray
transmission electron microscopy

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