g-C_(3)N_(4) Photocatalysts:Utilizing Electron-Hole Pairs for Boosted Redox Capability in Water Splitting  

作　　者：Grayson Zhi Sheng Ling Valerie Bei-Yuan Oh Choon Yian Haw Lling-Lling Tan Wee-Jun Ong 

机构地区：[1]School of Energy and Chemical Engineering,Xiamen University Malaysia,Sepang,Selangor Darul Ehsan,43900,Malaysia [2]Center of Excellence for NaNo Energy&Catalysis Technology(CONNECT),Xiamen University Malaysia,Sepang,Selangor Darul Ehsan,43900,Malaysia [3]State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,361005,China [4]Multidisciplinary Platform of Advanced Engineering,Chemical Engineering Discipline,School of Engineering,Monash University,Jalan Lagoon Selatan,Bandar Sunway,Selangor,47500,Malaysia [5]Shenzhen Research Institute of Xiamen University,Shenzhen,518057,China [6]Gulei Innovation Institute,Xiamen University,Zhangzhou,363200,China

出　　处：《Energy Material Advances》2023年第1期304-330,共27页能源材料前沿（英文）

基　　金：The authors would like to acknowledge the financial support provided by the Ministry of Higher Education(MOHE)Malaysia under the Fundamental Research Grant Scheme(FRGS)(Ref no:FRGS/1/2020/TK0/XMU/02/1);The authors would also like to thank the Ministry of Science,Technology and Innovation(MOSTI)Malaysia under the Strategic Research Fund(SRF)(S.22015);The authors would also like to acknowledge the financial support provided by the National Natural Science Foundation of China(Ref no:22202168);Guangdong Basic and Applied Basic Research Foundation(Ref no:2021A1515111019);Xiamen University Malaysia Investigatorship Grant(Grant no:IENG/0038);Xiamen University Malaysia Research Fund(ICOE/0001,XMUMRF/2021-C8/IENG/0041,and XMUMRF/2019-C3/IENG/0013);Hengyuan International Sdn.Bhd.(Grant no:EENG/0003).

摘　　要：Since the first discovery of solar-driven water splitting catalyzed by TiO_(2) semiconductors,extensive research works have been devoted over the decades.Currently,the design of a photocatalyst with dual redox potential is of prominent interest to fully utilize both photogenerated electrons and holes in the redox reactions.Among all,the coproduction of H_(2) and O_(2) from water using metal-free carbon nitride(g-C_(3)N_(4))has been viewed as a rising star in this field.However,the hole-mediated oxidation reaction is commonly recognized as the rate-determining step,which drastically leads to poor overall water splitting efficiency.On top of that,rapid recombination and undesirable back reaction appeared as one of the challenging parts in overall water splitting.In this review,the up-to-date advances in modified g-C_(3)N_(4)-based photocatalysts toward efficient overall water splitting are summarized,which are mainly classified into structural and defect engineering,single-atom catalysis,cocatalyst loading,and heterojunction construction.This review also addresses the underlying idea and concept to tackle the aforementioned problem with the use of emerging modification strategies,hence serving as the guiding star for future research.Despite the outstanding breakthrough thus far,critical recommendations related to g-C_(3)N_(4) photocatalytic systems are prospected to pave the way toward the implementation in the practical energy production process.

关 键 词：PROCESS SPLITTING CATALYST 

分 类 号：O643.36[理学—物理化学]