Using TiO2 supported on Clinoptilolite as a catalyst for photocatalytic degradation of azo dye Disperse yellow 23 in water

Abstract

In this investigation photocatalytic degradation of azo dye Disperse yellow 23 in water was studied. Titanium (IV) oxide was supported on Clinoptilolite (CP) (Iranian Natural Zeolite) using the solid-state dispersion (SSD) method. The results show that the TiO₂/Clinoptilolite (SSD) is an active photocatalyst. The maximum effect of photo degradation was observed at 10 wt % TiO₂, 90 wt % Clinoptilolite. A first order reaction with k = 0.0119 min⁻¹ was observed. The effects of some parameters such as pH, amount of photocatalyst, and the initial concentration of dye were examined.