Li-Juan Sun, Yan-Ming Jia, Fu Yang, Zhi-Yan Bai, Yu-Long Xie
{"title":"Bimetallic AgNi co-catalyst modified g-C3N4 nanosheets for highly efficient photocatalytic hydrogen evolution","authors":"Li-Juan Sun, Yan-Ming Jia, Fu Yang, Zhi-Yan Bai, Yu-Long Xie","doi":"10.1016/j.mtsust.2025.101205","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, AgNi/g-C<sub>3</sub>N<sub>4</sub> (AgNi/CN) composite were prepared by chemical reduction method to investigate their performance in photocatalytic water separation for hydrogen production. The research demonstrates that the bimetallic AgNi system exhibits mutual synergy, significantly enhancing the photocatalytic hydrogen evolution performance in aqueous solutions. Among them, the AgNi/g-C<sub>3</sub>N<sub>4</sub> photocatalyst can broaden the light absorption range, enable faster charge transfer and transport, and effectively inhibit the fast photogenerated electron-hole complexation. Notably, the hydrogen production rate of 5 % AgNi/CN sample was as high as 20891.14 μmol g<sup>−1</sup> h<sup>−1</sup>. Characterization techniques showed that this composite had enhanced light harvesting ability as well as efficient photogenerated charge carrier separation. In addition, density-functional theory (DFT) simulations show that the AgNi/CN system has an optimal reaction energy barrier, while also elucidating potential charge transfer pathways in the photocatalytic process. These findings highlight the promising applications of bimetallic co-catalysts and provide new strategies for designing high-performance photocatalytic systems.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101205"},"PeriodicalIF":7.9000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Today Sustainability","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589234725001344","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, AgNi/g-C3N4 (AgNi/CN) composite were prepared by chemical reduction method to investigate their performance in photocatalytic water separation for hydrogen production. The research demonstrates that the bimetallic AgNi system exhibits mutual synergy, significantly enhancing the photocatalytic hydrogen evolution performance in aqueous solutions. Among them, the AgNi/g-C3N4 photocatalyst can broaden the light absorption range, enable faster charge transfer and transport, and effectively inhibit the fast photogenerated electron-hole complexation. Notably, the hydrogen production rate of 5 % AgNi/CN sample was as high as 20891.14 μmol g−1 h−1. Characterization techniques showed that this composite had enhanced light harvesting ability as well as efficient photogenerated charge carrier separation. In addition, density-functional theory (DFT) simulations show that the AgNi/CN system has an optimal reaction energy barrier, while also elucidating potential charge transfer pathways in the photocatalytic process. These findings highlight the promising applications of bimetallic co-catalysts and provide new strategies for designing high-performance photocatalytic systems.
期刊介绍:
Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science.
With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.