Issue 16, 2021, Issue in Progress

Bimetallic zeolite-imidazole framework-based heterostructure with enhanced photocatalytic hydrogen production activity

Abstract

Bimetallic zeolite-imidazole frameworks with controllable flat band position, band gap and hydrogen evolution reaction characteristics were adopted as a photocatalytic hydrogen production catalyst. Furthermore, the g-C3N4–MoS2 2D–2D surface heterostructure was introduced to the ZnM-ZIF to facilitate the separation as well as utilization efficiency of the photo-exited charge carriers in the ZnM-ZIFs. On the other hand, the ZnM-ZIFs not only inhibited the aggregation of the g-C3N4–MoS2 heterostructure, but also improved the separation and transport efficiency of charge carriers in g-C3N4–MoS2. Consequently, the optimal g-C3N4–MoS2–ZnNi-ZIF exhibited an extraordinary photocatalytic hydrogen evolution activity 214.4, 37.5, and 3.7 times larger than that of the pristine g-C3N4, g-C3N4–ZnNi-ZIF and g-C3N4–MoS2, respectively, and exhibited a H2-evolution performance of 77.8 μmol h−1 g−1 under UV-Vis light irradiation coupled with oxidation of H2O into H2O2. This work will furnish a new MOF candidate for photocatalysis and provide insight into better utilization of porous MOF-based heterostructures for hydrogen production from pure water.

Graphical abstract: Bimetallic zeolite-imidazole framework-based heterostructure with enhanced photocatalytic hydrogen production activity

Supplementary files

Article information

Article type
Paper
Submitted
29 Jan 2021
Accepted
22 Feb 2021
First published
01 Mar 2021
This article is Open Access
Creative Commons BY license

RSC Adv., 2021,11, 9048-9056

Bimetallic zeolite-imidazole framework-based heterostructure with enhanced photocatalytic hydrogen production activity

N. Arif, Y. Lin, K. Wang, Y. Dou, Y. Zhang, K. Li, S. Liu and F. Liu, RSC Adv., 2021, 11, 9048 DOI: 10.1039/D1RA00781E

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