Abstract
Titanium silicalite-1 (TS-1) nanocrystals were coated on silica nanofibers by steam-assisted dry gel conversion technique. The preparation was carried out by impregnating the silica nanofibers in the diluted TS-1 synthesis solution, followed by the steam treatment at 130 °C for 6 days. The products were characterized by XRD, UV-vis spectroscopy, N2 sorption, SEM, and TEM. The results showed that TS-1 nanocrystals were grown on the silica nanofibers with a particle size of 10-20 nm. The resulting composites, with a BET surface area of 428 m2/g and a mesopore size of 4.4 nm, exhibited higher catalytic activity than conventionally hydrothermal synthesized TS-1 powders in the benzene hydroxylation with hydrogen peroxide.
Original language | English |
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Pages (from-to) | 3316-3318 |
Number of pages | 3 |
Journal | Materials Letters |
Volume | 62 |
Issue number | 19 |
DOIs | |
State | Published - 15 Jul 2008 |
Keywords
- Dry gel conversion
- Mesopore
- Nanocrystal
- Nanofiber
- Titanium silicalite-1