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A hybrid sol–gel approach for novel photoactive and hydrophobic titania coatings on aluminium metal surfaces
K. A. Manjumol,L. Mini,A. Peer Mohamed,U. S. Hareesh,K. G. K. Warrier
RSC Advances Pub Date : 08/05/2013 00:00:00 , DOI:10.1039/C3RA42397B
Abstract

Photoactive and hydrophobic titanium dioxide–silica coatings on aluminium metal surfaces have been developed by dip-coating of a mixed sol–gel precursor of titanium isopropoxide (TIP) and methyl trimethoxysilane (MTMS). The coating composition of titania–0.5 wt% silica (T–S0.5), annealed at 400 °C in air, effectively degraded 94% and 86% methylene blue after 3 h irradiation under UV and sunlight respectively. A water contact angle of 137° was measured on coated surfaces.

Graphical abstract: A hybrid sol–gel approach for novel photoactive and hydrophobic titania coatings on aluminium metal surfaces
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