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首页> 外文期刊>RSC Advances >A silver on 2D white-C3N4 support photocatalyst for mechanistic insights: synergetic utilization of plasmonic effect for solar hydrogen evolution
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A silver on 2D white-C3N4 support photocatalyst for mechanistic insights: synergetic utilization of plasmonic effect for solar hydrogen evolution

机译：2D白色C3N4载体上的银支持光催化剂，以提供有关机械方面的见解：等离子体能协同利用以促进太阳能氢的释放

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摘要

A photocatalyst integrating silver surface plasmon effect into two-dimensional g-C3N4 nanosheets (2D white-C3N4) was prepared successfully. The crystal structure, chemical states, morphology and photocatalytic performance of the prepared samples were researched by the comprehensive characterization methods. The photocatalytic activities of Ag/2D white g-C3N4 composites were dramatically enhanced under visible light irradiation. When Ag content was optimized, 2% Ag/white g-C3N4 exhibited the best photocatalytic activity. The electrochemical investigation verified the role of the hot electrons from the plasmonic Ag in the photocatalytic reaction. The plasmonic hot electron injection and advantages of 2D ultrathin structure improved the density of the electrons with reducibility and led to more efficient separation of photogenerated electron and hole pairs. The photocatalytic mechanism was also researched in detail via ESR analysis.
机译：成功制备了将银表面等离激元效应整合到二维g-C3N4纳米片（二维白色C3N4）中的光催化剂。通过综合表征方法研究了所制备样品的晶体结构，化学状态，形貌和光催化性能。 Ag / 2D白色g-C3N4复合材料的光催化活性在可见光照射下得到显着增强。当优化Ag含量时，2％Ag /白色g-C3N4表现出最佳的光催化活性。电化学研究证实了等离子体Ag中的热电子在光催化反应中的作用。等离子体热电子注入和2D超薄结构的优势可还原地提高电子密度，并导致更有效地分离光生电子和空穴对。还通过ESR分析详细研究了光催化机理。

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