TY - JOUR
T1 - Design and application of g-C3N4-based materials for fuels photosynthesis from CO2 or H2O based on reaction pathway insights
AU - He, Bin
AU - Cui, Yuandong
AU - Lei, Yu
AU - Li, Wenjin
AU - Sun, Jian
N1 - Publisher Copyright:
© 2022
PY - 2023/1
Y1 - 2023/1
N2 - Photocatalytic CO2 reduction reaction (CRR) and hydrogen evolution reaction (HER) based on graphitic carbon nitride (g-C3N4) that is regarded as the metal-free “holy grail” photocatalyst, provide promising strategies for producing next-generation fuels, contributing to achieving carbon neutrality, alleviating energy and environment crisis. However, the activity of CRR and HER over g-C3N4 leaves much to be desired. Therefore, numerous studies have sprung up to enhance photoactivity. A comprehensive understanding of the CRR and HER reaction pathways is crucial for designing g-C3N4-based materials, further promoting efficient fuel production. Different from previous reviews that focus on g-C3N4 modification from the viewpoint of material science. In this review, we divided the multistep processes of CRR and HER into five reaction pathways and summarized the latest advances for improving each pathway of fuels synthesis through CRR or HER. Meanwhile, the existing bottleneck issues of each step were also discussed. Finally, comprehensive conclusions, including the remaining challenges, outlooks, etc., for CRR and HER over g-C3N4 were put forward. We are sure that this review will conduce to the understanding of the structure–activity relationship between CRR, HER processes, and g-C3N4 structure, which can provide the reference for developing high-powered photocatalysts, not confined to g-C3N4.
AB - Photocatalytic CO2 reduction reaction (CRR) and hydrogen evolution reaction (HER) based on graphitic carbon nitride (g-C3N4) that is regarded as the metal-free “holy grail” photocatalyst, provide promising strategies for producing next-generation fuels, contributing to achieving carbon neutrality, alleviating energy and environment crisis. However, the activity of CRR and HER over g-C3N4 leaves much to be desired. Therefore, numerous studies have sprung up to enhance photoactivity. A comprehensive understanding of the CRR and HER reaction pathways is crucial for designing g-C3N4-based materials, further promoting efficient fuel production. Different from previous reviews that focus on g-C3N4 modification from the viewpoint of material science. In this review, we divided the multistep processes of CRR and HER into five reaction pathways and summarized the latest advances for improving each pathway of fuels synthesis through CRR or HER. Meanwhile, the existing bottleneck issues of each step were also discussed. Finally, comprehensive conclusions, including the remaining challenges, outlooks, etc., for CRR and HER over g-C3N4 were put forward. We are sure that this review will conduce to the understanding of the structure–activity relationship between CRR, HER processes, and g-C3N4 structure, which can provide the reference for developing high-powered photocatalysts, not confined to g-C3N4.
KW - CO reduction reaction
KW - Graphitic carbon nitride
KW - Hydrogen evolution reaction
KW - Photocatalysis
UR - http://www.scopus.com/inward/record.url?scp=85139260758&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2022.09.114
DO - 10.1016/j.jcis.2022.09.114
M3 - Article
C2 - 36202027
AN - SCOPUS:85139260758
SN - 0021-9797
VL - 629
SP - 825
EP - 846
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -