Synthesis of nanocrystalline titanium dioxide for photodegradation treatment of remazol brown dye

A nanocrystalline TiO 2 was successfully synthesized using simple aqueous peroxo route and subsequently the surface characterization of TiO 2 was carried out using X-ray diffraction and Scanning electron microscopy. The synthesized nanocrystalline TiO 2 successfully decomposed the aqueous remazol brown dye solution under UV light irradiation with and without ozone. The effects of pH, TiO 2 dose and irradiation time for decomposition of dye solution were also evaluated. The maximum dye decomposition efficiency of 96.6 % was achieved with the minimal time of 45 min by UV/TiO 2 /O 3 treatment. The present study clearly indicates that the peroxo route TiO 2 nanoparticle is a promising material for industrial waste water treatment.