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The synthesis of Cu-TCPP MOF/g-C3N4 heterojunctions as efficient photocatalysts for hydrogen generation.
- Source :
- New Journal of Chemistry; 11/28/2023, Vol. 47 Issue 44, p20336-20343, 8p
- Publication Year :
- 2023
-
Abstract
- Semiconductor photocatalysis is a potential solution to meet energy needs with green and inexhaustible solar energy. However, designing efficient and stable photocatalysts is a challenging task due to the limited ability to effectively separate electrons and holes. In this paper, by using a straightforward ethanol dispersion technique, we were able to combine ultrathin layered Cu-TCPP MOFs with g-C<subscript>3</subscript>N<subscript>4</subscript> nanosheets, resulting in the creation of an extremely effective nano-composite photocatalyst with exceptional UV-vis activity. CT/CN heterojunctions displayed remarkable photocatalytic efficacy for the production of H<subscript>2</subscript>, with 3CT/CN showcasing a five-fold enhancement in photoactivity as compared to the unadorned g-C<subscript>3</subscript>N<subscript>4</subscript>. Based on the results of photoluminescence spectroscopy, electrochemical impedance spectroscopy, and electrochemical reduction, the considerably improved charge transfer and separation, together with the possible catalytic capability of uniformly distributed metal nodes in Cu-TCPP, are believed to be the underlying reason for the observed exceptional photoactivity. After thorough analysis, a potential process for charge transfer and segregation between g-C<subscript>3</subscript>N<subscript>4</subscript> and Cu-TCPP has been suggested. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 47
- Issue :
- 44
- Database :
- Complementary Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 173555640
- Full Text :
- https://doi.org/10.1039/d3nj04078j