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Crystallization of TiO2 particles from peroxytatanic acid in the presence of poly(vinyl alcohol) (PVA) via a hydrothermal process was investigated. The crystal structure and morphology of TiO2 were significantly affected by pH and PVA dosage. High acidic condition without PVA led to the formation of rutile TiO2, while addition of PVA resulted in the formation of anatase TiO2. Much amount of PVA addition,...
This study describes the effect of amphiphilic organic molecules (surfactants) in a sol on the physicochemical properties and photocatalytic activity of crystalline TiO2 nanoparticles prepared via a simple sol–gel route at high temperatures from 400 to 800 °C. Addition of polyoxyethylenesorbitan surfactant and polyethylene oxide and polypropylene oxide triblock copolymer as particle size inhibitors...
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