Owing to the exorbitant overpotential and serious carrier recombination of graphitic carbon nitride(g-C3N4),noble metal(NM)is usually served as the H2 evolution co-catalyst.Although the NM(such as Pt)nanoparticles can reduce the H2 evolution overpotential,the weak van der Waals interaction between Pt and g-C3N4 makes against the charge transfer.Herein,the solvothermal method is developed to achieve semi-chemical interaction between Pt and g-C3N4 nanotube(Pt-CNNT)for fast charge transfer.Moreover,the generated in-plane homojunction of CNNT can accelerate charge separation and restrain recombina-tion.Meanwhile,the metallic Pt is an excellent H2 evolution co-catalyst.Photo/electrochemical tests ver-ify that the semi-chemical interaction can improve photogenerated charge separation and transferability of CNNT.As a result,the photocatalytic H2 evolution turnover frequency(TOF)of Pt-CNNT under visible light irradiation reaches up to 918 h-1,which is one of the highest in the g-C3N4-based photocatalysts.This work provides a new idea to improve the charge transfer for efficient photocatalytic H2 evolution.

Ziai Zhong;Lisha Chen;Longshuai Zhang;Feiyao Wu;Xunheng Jiang;Haiyan Liu;Fengrong Lv;Haiyang Xie;Fanqi Meng;Lingling Zheng;Jianping Zou

Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle,Nanchang Hangkong University,Nanchang 330063,China;Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education,School of Resources Environmental and Chemical Engineering,Nanchang University,Nanchang 330031,China;State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China

中国化学快报（英文版）

[1]Ziai Zhong;Lisha Chen;Longshuai Zhang;Feiyao Wu;Xunheng Jiang;Haiyan Liu;Fengrong Lv;Haiyang Xie;Fanqi Meng;Lingling Zheng;Jianping Zou-.Semi-chemical interaction between graphitic carbon nitride and Pt for boosting photocatalytic hydrogen evolution)[J].中国化学快报（英文版）,2022(06):3061-3064

CNNT

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