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Nano titanium dioxide sols containing silica in the range 5–50 mol% have been synthesized using sol–gel route starting from titanyl sulphate with a view of developing antisoiling surfaces. The titania sol had an average particle size of ~30 nm while the average size of titania-silica sol was 61 nm. The influence of silica addition on the phase transition and grain growth of nanocrystalline titania...
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