Synthesis of Titanium Dioxide nanoparticles and study on its composites characteristics.
2008
Raoufi, Nahid | Mahdi Navaz Aqdam, Ruh Ol-Lah | Javadi, Amir Hossein | Veysi, Ma`sumeh | Shakhesi, Sa`id | Ekhlasi, Fatemeh
TiO2 and Fe2O3/TiO2 nanoparticles and thin films synthesized by sol-gel method and dip-coating method on glass substrates. The morphological, microstructural and size characterizations of iron-titanium mixed oxides nanoparticles calcined and sintered films were investigated using X-ray diffractometry, scanning electron microscopy and transmission electron microscopy. Optical characterization by UV–vis spectrophotometer showed a shift in optical absorption wavelength to visible region may be due to the incorporation of iron oxide nanoparticles into titania structure. The photocatalytic activity of TiO2 and Fe2O3/TiO2 nanoparticles thin films were tested in UV and visible light using methyl orange as model pollutant. A preliminary investigation of photocatalytic activity of mixed oxides on methyl orange photo-oxidation showed that Fe2O3/TiO2 is more photoactive than pure TiO2.
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