TITANIUM DIOXIDE SOL-GEL/ZINC OXIDE POWDER-COATED CLAY BEADS IN PHOTOCATALYTIC REACTOR

Catalyst Immobilization methods are important for providing better recovery of catalyst in photocatalytic treatment. The aim is to characterize and evaluate the performance TiO2/ZnO-coated clay beads. titanium dioxide/zinc oxide (TiO2/ZnO)-coated beads were prepared via sol-gel process. Various ZnO powder ratios gave different TiO2/ZnO composites sol. Four layers sol coated on dried oven at 100°C 30 min. calcined 500°C one hour every two layers. Characterization was done using a scanning electron microscope energy dispersive spectroscopy. increased surface area small agglomeration optimum loading (5 g) resulted highest degradation efficiency recorded 86.57%. An effective immobilization achieved good recycling Degradation rate data presented by pseudo-first-order kinetics. It observed that average TiO2/5 g 0.00836 min–1. actual results this work can be applied as guideline preparation with high performance.