Application of zirconium phosphate doped with titanium for photodegradation of malachite green dioxide

Nanocrystalline titanium dioxide pillared zirconium phosphate was prepared by intercalating titanium (IV) isopropoxide sol inside the phosphate layer. This pillared sample is stable up to 500(C and exhibit highest surface area with high photocatalytic activities. In the present work, photodegradation of malachite green (MG) was studied in aqueous solution over titanium dioxide pillared zirconium phosphate under UV-radiation. The reaction was studied by varying different parameters such as pH, titania load, catalyst concentration, initial MG concentration, irradiation time. The degradation process approximately obeyed first-order kinetics with apparent rate of egradation constant increasing with decreasing the initial MG concentration.

Keywords:

Zirconium phosphate , titanium dioxide , malachite green