Synthesis, characterization and photo catalytic degradation of aqueous eosin over Cr containing Ti/MCM-41 and SiO2-TiO2 catalysts using visible light
| Title | Synthesis, characterization and photo catalytic degradation of aqueous eosin over Cr containing Ti/MCM-41 and SiO2-TiO2 catalysts using visible light |
| Publication Type | Journal Article |
| Year of Publication | 2005 |
| Authors | Awate, SV, Jacob, NE, Deshpande, SS, Gaydhankar, TR, Belhekar, AA |
| Journal | Journal of Molecular Catalysis A - Chemical |
| Volume | 226 |
| Issue | 2 |
| Pagination | 149-154 |
| Date Published | FEB |
| Type of Article | Article |
| ISSN | 1381-1169 |
| Keywords | Cr-Ti/MCM-41, Cr/SiO2-TiO2, eosin, photo degradation, visible light |
| Abstract | Two series of samples were prepared namely Cr-Ti/MCM-41 and Cr/SiO2-TiO2 keeping Si/Ti mole ratio same, with different Cr loading. The physico-chemical properties of the samples were characterized by different analytical techniques such as XRD, FTIR, TEM, low temperature N-2 sorption, and UV-vis diffused reflectance spectroscopy. The impregnated TiO2 was in anatase form. The crystallite size was determined from Scherrer equation as well as by TEM. There is a difference between the shapes of nitrogen adsorption isotherms with and without Cr-loaded Ti/MCM-41 samples. The rate of nitrogen adsorption was found to increase with decrease in Cr content at lower P/P-0 for Cr-Ti/MCM-41 samples due to the blocking of the pores with Cr. All MCM-41 samples exhibited pore sizes from 24 nm to 32 nm. UV-vis diffused reflectance spectra of all Cr-loaded samples showed red shift of their absorption edges. Photo degradation of eosin dye was studied using visible light. (C) 2004 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.molcata.2004.09.055 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.958 |