TY - JOUR
T1 - Role of transition metal oxides in g-C3N4-based heterojunctions for photocatalysis and supercapacitors
AU - Bai, Liqi
AU - Huang, Hongwei
AU - Yu, Shixin
AU - Zhang, Deyang
AU - Huang, Haitao
AU - Zhang, Yihe
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation (No.52072347, 51972288, 51672258 and 51572246), and the Fundamental Research Funds for the Central Universities (No. 2652019144 and 2652018287). H. T. Huang acknowledges the financial supports from the Science and Technology Program of Guangdong Province (2019A050510012) and Shenzhen Science, Technology and Innovation Commission (SGDX2019081623240364).
Publisher Copyright:
© 2021 Science Press
PY - 2022/1
Y1 - 2022/1
N2 - 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 photocatalytic 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 summarize 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.
AB - 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 photocatalytic 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 summarize 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.
KW - Carbon nitride
KW - Heterojunction
KW - Photocatalysis
KW - Supercapacitors
KW - Transition metal oxides
UR - http://www.scopus.com/inward/record.url?scp=85111965752&partnerID=8YFLogxK
U2 - 10.1016/j.jechem.2021.04.057
DO - 10.1016/j.jechem.2021.04.057
M3 - Review article
AN - SCOPUS:85111965752
SN - 2095-4956
VL - 64
SP - 214
EP - 235
JO - Journal of Energy Chemistry
JF - Journal of Energy Chemistry
ER -
