Abstract
Ordered mesoporous titanosilicates (OMTs) showing UV-visible-light absorption were synthesized using SBA-15 ordered mesoporous silica as a host framework, where the incorporated vanadium oxide worked as a visible-light receptor. The structures and the chemical composition of the OMTs were investigated with powder X-ray diffraction, nitrogen physisorption isotherm, transmission electron microscope and X-ray photoelectron spectroscopy. Vanadium oxide nanoparticles are incorporated into the interconnecting mesopores of SBA-15 structure and the most of titanium dioxide is uniformly coated on SBA-15 as well as vanadium oxide surfaces. The presence of vanadium oxide nanoparticles in OMTs induced visible-light absorption of titanium oxide at the wavelength above 400 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 161-166 |
| Number of pages | 6 |
| Journal | Chemical Physics Letters |
| Volume | 444 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2007 Aug 17 |
Bibliographical note
Funding Information:This work was supported by the Ministry of Science and Technology (Grant No. M10503000187-05M0300-18710), National Research Laboratory Program of the Korean Science and Engineering Foundation and Korea Research Foundation (Grant No. KRF-2004-005-C00068).
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry