Effect of temperature in water treatment photoreactors with TiO₂-coated fluoropolymer beads

This study examined the effect of solution temperature on the photocatalytic degradation of methylene blue solution in water treatment photoreactor. The photoreactor made of TiO₂ immobilized fluoropolymer beads which has the same refractive index of water. The photo reaction of the reactor in water purification was investigated by means of a recirculation experiment using an aqueous solution of methylene blue with a pseudo-first order kinetics. The result showed a pseudo-first order rate constant of reactor increased with rising the temperature. It was 1.3 times higher as changing the solution temperature from 293 K to 313 K. The temperature effect of reactor was estimated by Arrhenius equation. The estimated activation energy of this our reactor was 11.2 kJ/mol.