High surface area TiO2/SBA-15 nanocomposites: Synthesis, microstructure and adsorption-enhanced photocatalysis
Abstract
Mesoporous SBA-15 was used to anchor TiO2 nanoparticles into the mesopores to form high surface area TiO2/SBA-15 nanocomposites, and then the influence of mesoporous-structure on the photocatalytic performance was investigated. TiO2/SBA-15 nanocomposites possessed the high specific surface area and appropriate pore size, indicating the excellent adsorption performance. TiO2/SBA-15 nanocomposites exhibited the higher photocatalytic activity to degrade dyes (methylene blue: MB) than TiO2 (removing SBA-15), which should attributed to the excellent adsorption performance of the nanocomposites. MB was absorbed to form the higher concentration near TiO2/SBA-15 photocatalysts, and the photocatalytic degradation for MB was improved.
- Publication:
-
Chemical Physics
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.chemphys.2018.05.012
- Bibcode:
- 2018CP....510...47W
- Keywords:
-
- TiO<SUB>2</SUB>;
- Mesoporous-structure;
- Adsorption;
- Photocatalysis;
- Methylene blue