Hydrothermal synthesis and characterization of TiO2 nanostructures on the ceramic support and their photocatalytic performance

Vijay Kumar, T. M. S. and Shivaraju, H. P. and Byrappa, K. and Ranganathaiah, C. (2010) Hydrothermal synthesis and characterization of TiO2 nanostructures on the ceramic support and their photocatalytic performance. Bulletin of the Catalysis Society of India, 9 (2). pp. 37-50.

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Abstract

Nanostructures deposited on the supports have several advantages like large surface area, controlled morphology, size, porosity, mechanical properties and flexibility in the surface functionalities to obtain desired surface chemistry. Hydrothermal preparation of TiO2 nanostructures on the surface of calcium alumino-silicate ceramic beads (CASB) was carried out under mild hydrothermal conditions (T=150 to 220ºC and duration-24- 48 h) by using suitable mineralizers like NaOH, HCl, H2SO4, H2O. An efficient deposition and superior properties of TiO2 nanostructures on the surface of CASB supports were confirmed through a systematic characterization using XRD, SEM, FTIR and positron annihilation spectroscopy techniques. In the present work deposition of TiO2 nanowires and whiskers on the surface of CASB supports is reported. Photocatalytic properties of TiO2 nanostructures deposited CASB supports were investigated by photodegradation of Indigo Carmine dye and achieved a photodegradation efficiency upto 90-93% under UV light.

Item Type: Article
Subjects: Physical Sciences > Environmental Science
Physical Sciences > Earth Science
Physical Sciences > Physics
Divisions: PG Campuses > Manasagangotri, Mysore > Earth Science
PG Campuses > Manasagangotri, Mysore > Environmental Science
PG Campuses > Manasagangotri, Mysore > Physics
Depositing User: Ambika P Patil
Date Deposited: 08 Aug 2013 11:54
Last Modified: 30 Oct 2015 10:45
URI: http://eprints.uni-mysore.ac.in/id/eprint/14645

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