Adsorption of octadecyltrichlorosilane on mesoporous SBA-15
| Title | Adsorption of octadecyltrichlorosilane on mesoporous SBA-15 |
| Publication Type | Journal Article |
| Year of Publication | 2006 |
| Authors | Mirji, SA, Halligudi, SB, Sawant, DP, Jacob, NE, Patil, KR, Gaikwad, AB, Pradhan, SD |
| Journal | Applied Surface Science |
| Volume | 252 |
| Issue | 12 |
| Pagination | 4097-4103 |
| Date Published | APR |
| Type of Article | Article |
| ISSN | 0169-4332 |
| Keywords | Adsorption, OTS, SBA-15, Self-assembly, thermal stability |
| Abstract | Adsorption of octadecyltrichlorosilane (OTS) on mesoporous SBA-15 has been studied by using Brunauer-Emmett-Teller (BET) surface area analysis, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and thermo-gravimetric analysis (TGA) techniques. BET surface area analysis shows decrease of surface area from 930 to 416 m(2)/g after OTS adsorption. SEM pictures show close attachment of SBA-15 particles. EDAX measurements show increase of carbon weight percentage and decrease of oxygen and silicon weight percentage. XPS results closely support EDAX analysis. FTIR spectra shows presence of methyl (-CH3) and methylene (-CH2) bands and oriented OTS monolayer on SBA-15. Thermo-gravimetric analysis shows that the OTS adsorbed on SBA-15 are stable up to a temperature of 230 degrees C and that the OTS monolayers decompose between 230 and 400 degrees C. (c) 2005 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.apsusc.2005.06.009 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.15 |