A candy-like photocatalyst by wrapping Co, N-co-doped hollow carbon sphere with ultrathin mesoporous carbon nitride for boosted photocatalytic hydrogen evolution  

作　　者：Jinyuan Liu Shumin Zhu Bin Wang Ruizhe Yang Rong Wang Xingwang Zhu Yanhua Song Junjie Yuan Hui Xu Huaming Li 

机构地区：[1]School of Chemistry and Chemical Engineering,Institute for Energy Research,Jiangsu University,Zhenjiang 212013,China [2]College of Environmental Science and Engineering,Yangzhou University,Yangzhou 225009,China [3]School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China

出　　处：《Chinese Chemical Letters》2023年第2期367-371,共5页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 22008095, 22108106, 22075113, 22108110);the Special China Postdoctoral Science Foundation (Nos. 2020TQ0127, 2020M680065);Jiangsu Province Postdoctoral Science Foundation (No. 2021K396C);Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province (No. KFKT2021006);Jiangsu Funds for Distinguished Young Scientists (No. BK20190045);Natural Science Foundation of Jiangsu Province (No. BK20190981);Basic and Applied Basic Research Fund Project of Guangdong Province (No. 2019A1515111020)。

摘　　要：Hierarchical carbon material is used as a star cocatalyst in the field of photocatalysis due to its excellent catalytic properties. In this work, mesoporous carbon nitride sheet(MCNS) photocatalyst introduced nitrogen-doped hollow carbon spheres assembled with cobalt nanoparticles(Co@NHC) is synthesized by electrostatic adsorption. A series of characterizations are analyzed to display the structures, morphologies and optical properties of as-prepared materials. The photocatalytic activity of Co@NHC/MCNS material is evaluated with hydrogen evolution under visible light irradiation. The results indicate that 5 wt%Co@NHC/MCNS material reveals higher photocatalytic activity of hydrogen evolution rate of 3675 μmol/g with 4 h reaction time, which is 159 times than that of pure MCNS material. The carbon material with excellent charge transport properties can effectively accelerate the charge transfer from ultrathin MCNS to cobalt nanoparticles. The goal of improving the photocatalytic performance of Co@NHC/MCNS material is achieved. As a result, it provides a feasible and promised approach for doping transition metals to enhance photocatalytic activity.

关 键 词：Candy-like photocatalyst Mesoporous carbon nitride Hollow carbon spheres Photocatalytic hydrogen evolution 

分 类 号：TQ116.2[化学工程—无机化工] O643.36[理学—物理化学] O644.1[理学—化学]