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In situ preparation and photocatalytic performance of Ti3C2/TiO2 nanocomposite in the degradation of methyl orange and methylene blue.
- Source :
- Reaction Kinetics, Mechanisms & Catalysis; Dec2023, Vol. 136 Issue 6, p3271-3282, 12p
- Publication Year :
- 2023
-
Abstract
- Ti<subscript>3</subscript>C<subscript>2</subscript>/TiO<subscript>2</subscript> nanocomposites with high photocatalytic performance are prepared by one-step hydrothermal method. The morphology, microstructure and phase composition of the composites are analyzed and characterized by field emission scanning electron microscopy (SEM) and X-ray diffraction (XRD). The photocatalytic properties of pure TiO<subscript>2</subscript>, Ti<subscript>3</subscript>C<subscript>2</subscript> and Ti<subscript>3</subscript>C<subscript>2</subscript>/TiO<subscript>2</subscript> nanocomposites are evaluated using ultraviolet-visible-near-infrared (UV-VIS-NIR, UV-3600) spectrophotometer. The photocatalytic properties of pure TiO<subscript>2</subscript>, Ti<subscript>3</subscript>C<subscript>2</subscript> and Ti<subscript>3</subscript>C<subscript>2</subscript>/TiO<subscript>2</subscript> nanocomposites are investigated by using a 500 W xenon lamp to simulate the degradation of organic pollutants under sunlight. Under visible light irradiation, as for Ti<subscript>3</subscript>C<subscript>2</subscript>/TiO<subscript>2</subscript>, the electron and hole are separated more effectively than that of pure TiO<subscript>2</subscript> and Ti<subscript>3</subscript>C<subscript>2</subscript> and thus exhibit better photocatalytic performance than TiO<subscript>2</subscript> and Ti<subscript>3</subscript>C<subscript>2</subscript>. In addition, Ti<subscript>3</subscript>C<subscript>2</subscript>/TiO<subscript>2</subscript> nanocomposites are heat-treated at different temperatures. The results show that Ti<subscript>3</subscript>C<subscript>2</subscript>/TiO<subscript>2</subscript>-350 obtained by heat treatment at 350 °C exhibits preferable photocatalytic performance and more efficient electron-hole separation behavior than pure TiO<subscript>2</subscript> and Ti<subscript>3</subscript>C<subscript>2</subscript>. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18785190
- Volume :
- 136
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Reaction Kinetics, Mechanisms & Catalysis
- Publication Type :
- Academic Journal
- Accession number :
- 173236766
- Full Text :
- https://doi.org/10.1007/s11144-023-02500-1