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Updated: Aug 21, 2025
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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
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Graphitic carbon nitride (g-C3N4)-based photocatalytic materials for hydrogen evolution
Rui-Han Gao1,2, Qingmei Ge1, Nan Jiang1
1Enterprise Technology Center of Guizhou Province, Guizhou University, Guiyang, China.
Frontiers in Chemistry
|November 17, 2022
Summary
Graphitic carbon nitride (g-C3N4) shows promise for photocatalytic hydrogen production. This review details strategies like doping and heterojunctions to overcome its efficiency limitations for enhanced solar fuel generation.
Area of Science:
- Materials Science
- Photocatalysis
- Renewable Energy
Background:
- Semiconductors like TiO2, CdS, ZnO, BiVO4, and graphene are utilized in photocatalytic water splitting for hydrogen production.
- Graphitic carbon nitride (g-C3N4), a 2D layered material, possesses high thermostability, chemical inertness, and excellent semiconductive properties, indicating potential for photocatalytic hydrogen evolution.
Purpose of the Study:
- To review and summarize strategies for enhancing the photocatalytic performance of graphitic carbon nitride (g-C3N4) for hydrogen production.
- To address the challenges of low efficiency in g-C3N4, including fast charge carrier recombination, limited visible-light absorption, and low surface area.
Main Methods:
- Summarizing various modification strategies for g-C3N4.
- Discussing techniques such as pH control, morphology control, doping (metal/non-metal), metal deposition, heterojunction/homojunction construction, and dye-sensitization.
Main Results:
- Various strategies have been identified to improve the photocatalytic performance of pristine g-C3N4.
- These modifications aim to enhance visible-light absorption, reduce charge carrier recombination, and increase surface area.
Conclusions:
- The review provides insights into the performance of modified g-C3N4 materials for photocatalytic hydrogen evolution.
- It highlights potential future research directions for developing advanced g-C3N4-based photocatalysts for solar fuel applications.
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