Removal of Toxic Metal Ions from Industrial Waste Water by Photo Deposition on P-25 TiO2 Nanoparticles

Abstract

The availability of drinking water is currently one of the most pressing issues in the world. Hence, the development of water treatment systems is vital in providing long term health security. Titanium dioxide is a promising photocatalyst for removal of toxic metal ions from industrial waste water because of its high stability, low cost and low toxicity. Photoreduction of various toxic metal ions such as copper and chromium which are found in industrial waste water was done by P-25 TiO2 nanoparticles. Studies were done on various parameters affecting photo deposition process such as (i) change in pH and (ii) photo deposition in presence and absence of oxygen. The resulting materials was characterized by XRD, SEM and EDS and diffuse reflectance spectroscopy