【摘 要】
：
g-C3N4 emerges as a star 2D photocatalyst due to its unique layered structure,suitable band structure and low cost.However,its photocatalytic application is limited by the fast charge recombination and low photoabsorption.Rationally designing g-C3N4-based
【机 构】
：
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes,School of M
论文部分内容阅读
g-C3N4 emerges as a star 2D photocatalyst due to its unique layered structure,suitable band structure and low cost.However,its photocatalytic application is limited by the fast charge recombination and low photoabsorption.Rationally designing g-C3N4-based heterojunction is promising for improving photocat-alytic activity.Besides,g-C3N4 exhibits great potentials in electrochemical energy storage.In view of the excellent performance of typical transition metal oxides (TMOs) in photocatalysis and energy storage,this review summarized the advances of TMOs/g-C3N4 heterojunctions in the above two areas.Firstly,we introduce several typical TMOs based on their crystal structures and band structures.Then,we sum-marize different kinds of TMOs/g-C3N4 heterojunctions,including type Ⅰ/Ⅱ heterojunction,Z-scheme,p-n junction and Schottky junction,with diverse photocatalytic applications (pollutant degradation,water splitting,CO2 reduction and N2 fixation) and supercapacitive energy storage.Finally,some promising strategies for improving the performance of TMOs/g-C3N4 were proposed.Particularly,the exploration of photocatalysis-assisted supercapacitors was discussed.
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