聊城大学学报（自然科学版）2024，Vol.37Issue(1)：70-75,6.DOI:10.19728/j.issn1672-6634.2023080011
硫掺杂g-C3N4制备及其光催化产氢性能研究
Preparation of Sulfur-Doped g-C3N4 and Its Photocatalytic Performance for Hydrogen Evolution
摘要
Abstract
Developing hydrogen energy has attracted wide attention under the background of'dual carbon'national strategy.g-C3N4 is considered to be a promising hydrogen evolution photocatalyst because of its advantages of simple preparation,suitable band gap and high stability.However,slow charge transfer and fast carrier recombination rate lead to poor hydrogen evolution performance of pure g-C3N4.In this study,a simple and efficient sulfur-doped g-C3N4 synthesis strategy is developed by creatively using the high-tem-perature thermal polymerization between sulfur powder and urea solution.As a result,two-dimensional sulfur-doped g-C3N4 nanosheet(S-g-C3N4)is synthesized.Subsequently,the effects of sulfur doping on the photoelectrochemical properties and photocatalytic hydrogen evolution performance of g-C3N4 are sys-tematically studied.The results show that sulfur doping can not only effectively enhance the visible light absorption capacity,but also significantly improve the photogenerated carrier separation and transfer effi-ciency of g-C3N4.Therefore,the photocatalytic hydrogen production rate of S-g-C3N4 is nearly 10 times higher than that of pure g-C3N4.关键词
g-C3N4/硫粉/硫掺杂/光催化产氢Key words
g-C3N4/sulfur powder/sulfur-doping/photocatalytic hydrogen evolution分类
化学化工引用本文复制引用
李星杰,孙玮,明邱焱,刘耀程,廖国东,王海涛,江吉周..硫掺杂g-C3N4制备及其光催化产氢性能研究[J].聊城大学学报（自然科学版）,2024,37(1):70-75,6.基金项目
国家自然科学基金项目(62004143) （62004143）
湖北省重点研发计划项目(2022BAA084) （2022BAA084）
湖北省自然科学基金项目(2021CFB133)资助 （2021CFB133）
