Manganese-Assisted Carbon Nitride/Carbon Nanoribbons Heterojunction for Efficient Photocatalytic H₂O₂ and H₂ Production.

Authors

Yanmei Zheng, Qichao Chen, Jianghong Ouyang, Ziwei Hang, Zupeng Chen

Published in

ChemSusChem. Pages e202500939. Sep 17, 2025. Epub Sep 17, 2025.

Abstract

The simultaneous photocatalytic production of hydrogen peroxide (H₂O₂) and hydrogen (H₂) from water has received widespread attention. However, the inherent inefficiencies in dynamic processes, such as sluggish charge separation or accumulation, pose substantial limitations to overall photocatalytic performance. Here, a manganese-assisted carbon nitride/carbon nanoribbons (CN/CT-Mn) heterojunction is developed via a straightforward thermal evaporation process. The optimized CN/CT-Mn photocatalyst demonstrates exceptional activity for concurrent H₂O₂ and H₂ production under ambient conditions, achieving impressive yields of 104 and 720 μmol g^-1 h^-1, respectively. The enhanced performance can be attributed to the enhanced charge separation and the regulation of electron reduction kinetics resulting from the construction of the heterojunction interface. Notably, the presence of Mn atoms introduces an additional impurity level, enabling precise control over the reduction selectivity of photogenerated electrons.

PMID:
40959875
Bibliographic data and abstract were imported from PubMed on 17 Sep 2025.

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