摘要
为开发高效稳定的光催化产氢材料,本试验通过碳点修饰的多孔二氧化钛,制备了一种碳点复合材料,并对该材料的光催化产氢性能进行分析。结果表明,这种碳点复合材料保持了碳点和二氧化钛的结构特征,具有稳定的复合体系。该材料的光催化产氢性能优异,8 h产氢速率达到35.88 mol/(h·g),较多孔二氧化钛提高4倍以上。并且,这种碳点复合材料的动力学常数提高160%,且在24 h循环测试中保持良好的稳定性。
To develop a highly efficient and stable photocatalytic hydrogen production material,this experiment prepared a carbon dot composite via carbon dot-modified porous titanium dioxide and analyzed its photocatalytic hydrogen production performance.The results show that this carbon dot composite retains the structural characteristics of carbon dots and titanium dioxide,forming a stable composite system.The material exhibits excellent photocatalytic hydrogen production performance,with a hydrogen production rate reaching 35.88 mol/(h·g)within 8 hours,which is more than 4 times higher than that of porous titanium dioxide.Furthermore,the kinetic constant of this carbon dot composite is increased by 160%,and it maintains good stability during the 24-hour cycle test.
作者
彭慧芝
邓孜
孙化鹏
PENG Huizhi;DENG Zi;SUN Huapeng(Chenzhou Vocational Technical College,School of New Energy,Chenzhou 423000,Hunan China)
出处
《粘接》
2026年第1期108-111,共4页
Adhesion
基金
2023年郴州国家可持续发展议程创新示范区建设专项课题(项目编号:2023sfg11)。
关键词
光催化
碳点
复合材料
产氢速率
稳定性
photocatalysis
carbon dots
composite materials
hydrogen production rate
stability
