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Graphitic Carbon Nitride as a Sustainable Photocatalyst Material for Pollutants Removal. State-of-the Art, Preliminary Tests and Application Perspectives.
- Source :
- Materials (1996-1944); Dec2021, Vol. 14 Issue 23, p7368, 1p
- Publication Year :
- 2021
-
Abstract
- Photocatalysis is an attractive strategy for emerging pollutants remediation. Research towards the development of new, efficient and effective catalytic materials with high activity under wide irradiation spectra is a highly active sector in material science. Various semiconductor materials have been employed as photocatalysts, including TiO<subscript>2</subscript>, SrTiO<subscript>3</subscript>, CdS, BiVO<subscript>4</subscript>, Ta<subscript>3</subscript>N<subscript>5</subscript>, TaON, Ag<subscript>3</subscript>PO<subscript>4</subscript>, and g-C<subscript>3</subscript>N<subscript>4</subscript>. The latter is a metal-free, low cost polymer, providing high adsorption and catalytic properties, shown to be promising for photocatalysis applications under visible light. Furthermore, g-C<subscript>3</subscript>N<subscript>4</subscript> composites are among the most promising advanced photocatalytical materials that can be produced by green synthesis processes. In this paper, the state-of-the-art of g-C<subscript>3</subscript>N<subscript>4</subscript> applications is reviewed, and application perspectives are discussed. Photocatalysis tests with g-C<subscript>3</subscript>N<subscript>4</subscript> under Xenon irradiation were performed to gather first-hand information to improve photoreactor design. Xenon light spectrum appears to be a suitable radiation source to replace direct sunlight in engineered pollutants removal processes catalyzed by g-C<subscript>3</subscript>N<subscript>4</subscript>, in lieu of other currently used heterogeneous photocatalysis processes (e.g., TiO<subscript>2</subscript>-UV). LED sources are also very promising due to higher energy efficiency and customizable, catalyzer-specific irradiation spectra. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 14
- Issue :
- 23
- Database :
- Complementary Index
- Journal :
- Materials (1996-1944)
- Publication Type :
- Academic Journal
- Accession number :
- 154081321
- Full Text :
- https://doi.org/10.3390/ma14237368