Sol-gel synthesis of mesoporous hollow titania microspheres for photodegradation of 4-chlorophenol
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
View Archive Info| Field | Value | |
| Title |
Sol-gel synthesis of mesoporous hollow titania microspheres for photodegradation of 4-chlorophenol
|
|
| Creator |
Hazra Chowdhury, Ipsita
Naskar, Milan Kanti |
|
| Subject |
Engineering Materials
|
|
| Description |
Mesoporous titania (TiO2) hollow microspheres have been prepared by sol-gel method and characterized by XRD, Raman, FTIR, N-2 adsorption-desorption study, FESEM, TEM and UV-DRS. The FESEM images reveal hollow spherical shaped particles of size 2-4 mu m. The BET surface area, total pore volume and average pore diameter of 400 degrees C-treated sample are found to be 74.52 m(2) g(-1), 0.23 cm(3) g(-1) and 12.37 nm, respectively. The band gap energy of the product is calculated as 3.06 eV. The prepared TiO2 hollow spheres show similar to 90% photodegradation of the water pollutant, 4-chlorophenol, within 1 h. The photocatalytic reaction shows pseudo-first order reaction with a rate constant of 0.027 min(-1). The photocatalytic experiments repeated for another three cycles showed no significant changes in the k (min(-1)) values, indicating the potential reusability of the material.
|
|
| Publisher |
National Institute of Science Communication
|
|
| Date |
2018-07
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cgcri.csircentral.net/4240/1/hazra.pdf
Hazra Chowdhury, Ipsita and Naskar, Milan Kanti (2018) Sol-gel synthesis of mesoporous hollow titania microspheres for photodegradation of 4-chlorophenol. Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry , 57 (7). pp. 910-914. ISSN 0376-4710 |
|
| Relation |
http://cgcri.csircentral.net/4240/
|
|