Photocatalytic Activity of PVA Modified TiO2 Nanoparticles

A novel, less time consuming and cost ineffective Wet chemical technique (WCT) was used to synthesis polyvinyl alcohol (PVA) modified TiO2 nanoparticles at relatively low temperature, in acidic pH, using Titanium tetra isopropoxide (TTIP) as a precursor. The synthesized nanoparticles were characterized by XRD, SEM-EDAX, TEM, FTIR and Uv-Visible spectroscopy. The results shows that increasing PVA concentration reduces the particle size from 17 nm to 10 nm and increase the surface area from 54 to 65 m2/g. The Uv-Visible spectra shows that blue shift was observed in all nanoparticles, which indicates PVA have capability to control the particle size. The TEM images revealed that all the particles were in nanometer size. The synthesized nanoparticles shows good photocatalytic activity and it decompose textile dye isolan blue (IB) in 5 hr reaction.