Photocatalytic Activity and Kinetic Study of Methylene Blue Degradation using N-Doped TiO2 with Zeolite-NaY

Abstract

Methylene blue is the most widely used dye in the industry and it is difficult to be degraded by the microorganism. This research aims to investigate the photocatalytic activity and effects of contact time on the photocatalytic degradation rate of methylene blue by TiO 2 /Zeolite-NaY and TiO 2 -N/Zeolite-NaY material based on the kinetic study. The Advanced Oxidative Process (AOP) method was used to degrade methylene blue. Furthermore, the AOP is a degradation process that uses semiconductor material such as TiO 2 or modification catalyst of TiO 2 to be TiO 2 /Zeolite-NaY and TiO 2 -N/Zeolite-NaY. The degradation of methylene blue with catalyst TiO 2 /Zeolite-NaY and TiO 2 -N/Zeolite-NaY were tested under UV light for 5, 20, 30, 40, and 50 minutes. The result showed that TiO 2 /Zeolite-NaY and TiO 2 -N/Zeolite-NaY had an excellent activity for degrading the dye, which reached up to 99% after 20 and 30 minutes reaction, respectively. Also, a kinetic study of methylene blue degradation on TiO 2 /Zeolite-NaY and TiO 2 -N/Zeolite-NaY showed the kinetic models were according to pseudo-second-order.