| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1642263 | Materials Letters | 2015 | 4 Pages |
•A facile approach was developed for Au nanoparticles supported on highly dispersed TiO2 within the SBA-15.•Au/TiO2/SBA-15 exhibited a markedly enhanced photocatalytic activity under visible light irradiation.•Au/TiO2/SBA-15 displayed a better photocatalytic performance compared to the commercial P25.•Au/TiO2/SBA-15 composite exhibited excellent cycling stability.
In this study, a two-step microwave-assisted hydrothermal synthetic approach was adopted to prepare a Au/TiO2/SBA-15 photocatalyst. Results from X-ray diffraction, N2 sorption, and transmission electron microscopy analyses confirmed the formation of a composite with an ordered mesoporous structure over highly dispersed TiO2 as well as a close contact between the Au and TiO2 nanoparticles within the SBA-15 framework. Compared to the commercial P25 and TiO2/SBA-15 catalysts, the as-prepared Au/TiO2/SBA-15 photocatalyst exhibited a markedly enhanced photocatalytic activity for the decomposition of methylene blue under visible-light irradiation.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
