Mukhopadhyay, Anindita and Basak, Sujit and Das, Jugal Kishore and Medda, Samar Kumar and Chattopadhyay, Krishnananda and De, Goutam (2010) Ag-TiO(2) Nanoparticle Codoped SiO(2) Films on ZrO(2) Barrier-Coated Glass Substrates with Antibacterial Activity in Ambient Condition. ACS Applied Materials & Interfaces, 2 (9). pp. 2540-2546. ISSN 1944-8244

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Abstract

Anatase TiO(2) and Ag nanoparticles (NPs) codoped SiO(2) films were prepared by the sol-gel method. Proportionate amounts of 3-(glycidoxypropyl)trimethoxysilane (GLYMO), tetraethylorthosilicate (TEOS) and 3-(methacryloxypropyl)trimethoxysilane (MEMO) derived inorganic organic silica sol, commercially available dispersed anatase TiO(2) NPs, and AgNO(3) were used to prepare the sols. The films were prepared on ZrO(2) (cubic) precoated soda-lime glass substrates by a single-dipping technique and heat-treated at 450 degrees C in air and H(2)/Ar atmosphere to obtain hard, relatively porous, and transparent coatings of thickness >600 nm. The ZrO(2) barrier layer was previously applied on soda-lime glass to restrict the diffusion of Ag into the substrate. The Ag-TiO(2) NPs incorporated SiO(2) films were intense yellow in color and found to be fairly stable at ambient condition for several days under fluorescent light. These films show a considerable growth inhibition on contact with the gram negative bacteria E. coli.

Item Type:	Article
Uncontrolled Keywords:	Ag-TiO(2) NPs codoped SiO(2) film; Anatase TiO(2); Sol-gel; Antibacterial activity; Cubic ZrO(2) barrier film on glass
Subjects:	Glass
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	14 Feb 2012 12:40
Last Modified:	14 Feb 2012 12:40
URI:	http://cgcri.csircentral.net/id/eprint/816

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