Constructing a non‐noble metal WC/CaIn2S4 Schottky heterojunction photocatalyst for enhanced photocatalytic H2 production

Constructing a non‐noble metal WC/CaIn2S4 Schottky heterojunction photocatalyst for enhanced photocatalytic H2 production

To take the pronounced issue of recombination among photogenerated electrons and holes in the photocatalytic reaction, we report a WC/CaIn2S4 Schottky heterojunction photocatalyst using a straightforward one‐step hydrothermal method and applied it for the enhanced hydrogen evolution reaction in phot...

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Veröffentlicht in:Chemistry, an Asian journal an Asian journal, 2024-09, p.e202400901
Hauptverfasser: Jiang, Wenjun, Zhou, Liang, Nguyen, Tan Phong, Wang, Lingzhi, Zhang, Jinlong, liu, Yongdi, Lei, Juying
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container_title Chemistry, an Asian journal
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creator Jiang, Wenjun
Zhou, Liang
Nguyen, Tan Phong
Wang, Lingzhi
Zhang, Jinlong
liu, Yongdi
Lei, Juying
description To take the pronounced issue of recombination among photogenerated electrons and holes in the photocatalytic reaction, we report a WC/CaIn2S4 Schottky heterojunction photocatalyst using a straightforward one‐step hydrothermal method and applied it for the enhanced hydrogen evolution reaction in photocatalysis. A stable Schottky energy barrier can be formed by closely connecting the metal‐like WC with the n‐type semiconductor CaIn2S4, accelerating the migration of photogenerated carriers. Meanwhile, WC can lower the overpotential for hydrogen evolution, leading to a notable enhancement in the photocatalytic hydrogen evolution rate. The hydrogen evolution rate of the optimal WC/CaIn2S4 Schottky heterojunction photocatalyst WCIS1:1 was approximately 2.3 times higher than that of Pt‐loaded photocatalyst CIS+Pt. This study delves into the application significance of the Schottky heterojunction principle in the photocatalytic hydrogen production reaction. Furthermore, this study provides a novel approach to replacing noble metal Pt with metal‐like WC in the field of photocatalytic hydrogen evolution.
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title Constructing a non‐noble metal WC/CaIn2S4 Schottky heterojunction photocatalyst for enhanced photocatalytic H2 production
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