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Updated: Jan 5, 2026
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Nickel complex co-catalyst confined by chitosan onto graphitic carbon nitride for efficient H2 evolution
Jun-Shuai Zhang1, Wei-De Zhang1
1Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, People's Republic of China.
Abstract:
Developing earth-abundant H2-production heterogeneous photocatalysts with robust activity and stability has attracted great interests. Herein, a low-cost photocatalyst was prepared by binding nickel complex covalently from primary amines of chitosan (NiL) onto photosensitive carbon nitride nanosheets (CN) through electrostatic interaction. Introduction of NiL results in more efficient utilization of solar energy, photogenerated electrons' direct transfer and lower overpotential for water reduction. The optimized NiL3-CN photocatalyst shows the highest H2 evolution rate of 346 μmol g-1 h-1 under visible light irradiation and exhibits high stability during test. This work presents great potentials for sustainable conversion of solar energy, and sheds positive light on the development of heterogeneous photocatalysts via anchoring H2-evolving molecule catalysts confined by inexpensive macromolecules onto a semiconductor photosensitizer through a facile and valid method.
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