Abstract
Titanium isopropoxide (TIPO), tetraethyl orthosilicate (TEOS) and Fluoroalkylsilane (FAS) silane precursor were employed to coat transparent thin film on the glass substrate and these effectively prevents pollution on the glass from microorganisms. The each nanocomposition film was prepared by sol-gel method, the solution of nanocomposite was coated by spin coater with 1200 rpm for 30 sec and cured by thermal at 100 degrees C on glass which surface treated with Piranha solution. The nanocomposite films with highly self cleaning efficacy were fabricated and studied for various molar compositions of TEOS, TIPO and FAS. TEOS/TIPO film in glass substrate shows an optical transparency over 90% up to 30 mol% of TIPO in TEOS/TIPO composite films and also FAS incorporated up to 4 mol% onto TEOS/TIPO films. The anti-microbial efficiency of the nanocomposite film was improved 30% when it was exposed under UV light radiation than that in ambient condition.
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