Promoting condensation kinetics of polymeric carbon nitride for enhanced photocatalytic activities

作     者：Dongya Ni Yuye Zhang Yanfei Shen Songqin Liu Yuanjian Zhang Dongya Ni;Yuye Zhang;Yanfei Shen;Songqin Liu;Yuanjian Zhang

作者机构：Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and DeviceJiangsu Province Hi-Tech Key Laboratory for Bio-Medical ResearchSchool of Chemistry and Chemical EngineeringMedical SchoolSoutheast University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2020年第31卷第1期

页      面：115-118页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：financially supported in part by the National Natural Science Foundation of China (Nos.21775018,21675022) the Natural Science Foundation of Jiangsu Province (Nos. BK20160028,BK20170084) the Postgraduate Research & Innovation Program of Jiangsu Province (No.KYCX17_0137) the Open Funds of the State Key Laboratory of Electroanalytical Chemistry (No.SKLEAC201909) the Fundamental Research Funds for the Central Universities 

主　　题：Polymeric carbon nitride Condensation kinetics Fast ramping rate High crystallinity Photocatalytic hydrogen evolution 

摘      要：Polymeric carbon nitride(CN)semiconductor by thermal condensation of N-rich precursors has attracted much attention for its capability ranging from photocatalytic and photoelectrochemical energy conversion to ***,the influence of condensation process on the final structure of CN was rarely studied,making the condensation kinetic far from be fully ***,we report the preparation of CN by a simple condensation kinetics modulation using a faster ramping rate during the polymerization *** modified condensation recipe was even simpler than the conventional one,but led to an improved photocatalytic H2 evolution up to 3 times without any additional chemicals or other *** mechanism studies revealed the increase of crystallinity and surface area due to the rapid condensation played the key *** work would offer a more facile and effective way to prepare bulk CN for large-scale industrial applications of bulk CN with higher photocatalytic actives for sustainable energy,environmental and biosensing.