Efficient hydrogen evolution from g-C3N4 under visible light by in situ loading Ag2Se nanoparticles as co-catalysts

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2024-01-01 DOI:10.1016/j.catcom.2023.106837

Zhenbang Xie , Qihang Liu , Haixin Zhao , Hongtai Chen , Guozhi Jia , E. Lei , Chao Wang , Yongzhu Zhou

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Abstract

The low charge separation and transfer of g-C₃N₄ hinders its industrial application in photocatalytic hydrogen evolution. Here, we design a novel co-catalyst strategy to integrate Ag₂Se nanoparticles in situ on the surface of g-C₃N₄. The optimized photocatalyst, 15% Ag₂Se/g-C₃N₄, demonstrates remarkable photocatalytic efficiency in the hydrogen evolution rate, reaching to 1102.8 μmol·g⁻¹·h⁻¹, 7 times higher than g-C₃N₄. To further elucidate the photocatalytic activity of 15% Ag₂Se/g-C₃N₄, we present a possible mechanism based on various characterizations and density functional theory calculations. This research offers potential insights for the future development of silver chalcogenide composites in photocatalysis.

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通过原位负载 Ag2Se 纳米粒子作为助催化剂，在可见光下高效实现 g-C3N4 的氢气进化

g-C3N4 的电荷分离和转移能力较低，阻碍了其在光催化氢气进化中的工业应用。在此，我们设计了一种新颖的助催化剂策略，在 g-C3N4 表面原位集成 Ag2Se 纳米颗粒。优化后的 Ag2Se/g-C3N4 光催化剂（15% Ag2Se/g-C3N4）在氢气进化速率方面表现出显著的光催化效率，达到 1102.8 μmol-g-1-h-1，是 g-C3N4 的 7 倍。为了进一步阐明 15% Ag2Se/g-C3N4 的光催化活性，我们根据各种表征和密度泛函理论计算提出了一种可能的机制。这项研究为未来开发光催化领域的银铬化合物复合材料提供了潜在的启示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.