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Amorphous Carbon and Cyano-Group Self-Modified P-Doped g-C 3 N 4 for Boosting Photocatalytic H 2 Evolution.
- Source :
- Catalysts (2073-4344); Aug2024, Vol. 14 Issue 8, p523, 14p
- Publication Year :
- 2024
-
Abstract
- Designing g-C<subscript>3</subscript>N<subscript>4</subscript>-based nanostructured photocatalysts is crucial to boosting their application in advancing clean energy and sustainable environmental solutions. In this study, cyano groups and amorphous carbon self-modified P-doped g-C<subscript>3</subscript>N<subscript>4</subscript> (PCNx) photocatalysts were designed and prepared by one-pot calcination. Melamine phosphate was employed as a multifunctional precursor to simultaneously achieve P-doping and amorphous carbon/cyano group self-modification in the g-C<subscript>3</subscript>N<subscript>4</subscript> photocatalyst. The molar ratio of urea to melamine phosphate regulates the content of amorphous carbon and cyano groups, which further enhances the conductivity of g-C<subscript>3</subscript>N<subscript>4</subscript>. Due to the high conductivity of amorphous carbon and cyano groups, the charge transfer process was further accelerated. As a result, the optimized P-doping and amorphous carbon/cyano-group in PCN2 photocatalyst led to an excellent H<subscript>2</subscript> production rate of 157.86 µmol·g<superscript>−1</superscript>·h<superscript>−1</superscript> under visible light, which is approximately 2.4 times and 3 times higher than those of CN and PCN. The work developed an alternative strategy for the construction of highly efficient g-C<subscript>3</subscript>N<subscript>4</subscript>-based photocatalysts. [ABSTRACT FROM AUTHOR]
- Subjects :
- AMORPHOUS carbon
CLEAN energy
CYANO group
CHARGE transfer
VISIBLE spectra
Subjects
Details
- Language :
- English
- ISSN :
- 20734344
- Volume :
- 14
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Catalysts (2073-4344)
- Publication Type :
- Academic Journal
- Accession number :
- 179352891
- Full Text :
- https://doi.org/10.3390/catal14080523