Treatment of highly polluted paper mill waste water by solar photocatalytic oxidation with synthesized nano Tio2

Photo catalytic processes in the presence of titanium dioxide provide an interesting route to destroy hazardous organic contaminants, being operational in the UV-A domain with a potential use of solar radiation. The solar photo catalytic degradation of paper mill wastewater has been studied over synthesized nano TIO₂. The catalyst was characterized by techniques like x-ray diffraction (XRD).. The enhanced photo catalytic activity of the synthesized catalyst is attributed to the crystalinity, nano size, large amount of surface hydroxyl species and reduced band-gap.