摘要
石墨氮化碳(g-C_(3)N_(4))在新能源开发和环境修复方面具有巨大的应用潜力,但纯g-C_(3)N_(4)存在的光吸收范围小、结晶度高、光生载流子复合率高和活性位点偏少等缺点限制了其应用范围。引入碳量子点(CQDs)构建复合相,可以增加g-C_(3)N_(4)的反应活性位点,加快其表面电荷的转移,抑制载流子的复合,从而提升其光催化活性。对CQDs的制备方法和原料来源,以及CQDs/g-C_(3)N_(4)复合材料的合成方法(溶剂热法、煅烧法、自组装法)和光催化性能的提升策略等方面的研究进展进行了综述,介绍了近年来CQDs/g-C_(3)N_(4)复合材料在氢气制取、污染物降解、抗菌方面的应用,最后对CQDs/g-C_(3)N_(4)复合材料的未来发展方向进行了展望。
Graphite carbon nitride(g-C_(3)N_(4))has great application potential in the new energy development and environmental remediation,but the shortcomings of pure g-C_(3)N_(4),such as small light absorption range,high crystallinity,high photo-generated carrier recombination rate and few active sites,limit its application range.The introduction of carbon dots(CQDs)to construct composite phase can increase the reactive sites of g-C_(3)N_(4),accelerate the transfer of surface charges,inhibit the recombination of carriers,and then enhance its photocatalytic activity.The preparation methods and raw material sources of CQDs,the synthesis methods(solvothermal method,calcination method and self-assembly method)of CQDs/g-C_(3)N_(4)composites and the strategies for improving photocatalytic performance were reviewed.The applications of CQDs/g-C_(3)N_(4)composites in hydrogen production,pollutant degradation and antibacterial in recent years are described.Finally,the future development direction of CQDs/g-C_(3)N_(4)composites is prospected.
作者
刘志信
刘成宝
郑磊之
陈丰
钱君超
邱永斌
孟宪荣
陈志刚
LIU Zhixin;LIU Chengbao;ZHENG Leizhi;CHEN Feng;QIAN Junchao;QIU Yongbin;MENG Xianrong;CHEN Zhigang(Jiangsu Key Laboratory for Environment Functional Materials,,Suzhou University of Science and Technology,Suzhou 215009,China;School of Materials Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment,Suzhou University of Science and Technology,Suzhou 215009,China;Jiangsu Province Ceramics Research Institute Co.,Ltd.,Yixing 214221,China;Suzhou Institute of Environmental Science,Suzhou 215007,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2024年第7期1-10,共10页
Materials For Mechanical Engineering
基金
江苏省自然科学基金资助项目(BK20180103,BK20180971)
苏州市科技发展计划项目(民生科技-关键技术应用研究)(SS202036)。
