Application of TiO₂-bayah natural zeolite composite for degradation of ammonia gas pollutant

This study aimed to apply the TiO₂-zeolite composite material as a photocatalyst in the photodegradation of ammonia gas. TiO₂-Bayah natural zeolite was synthesized by slurry method and continued with calcination process at 500 °C for 3 h. The amount of TiO₂ varied (5, 10 and 20 % wt) in the total weight of the catalyst to prove the effect of TiO₂ loading on the composition, structure and surface area of the composite, as well as the efficiency of ammonia gas degradation. X-ray fluorescence characterization showed the increasing of TiO₂ composition of composite materials according to the amount of TiO₂ loaded. X-ray diffraction showed that there was no change in the structure of the zeolite before and after combination with TiO₂. BET analysis showed that the composite surface area was larger than the zeolite surface area, but the surface area decreased with increasing TiO₂ loading. Performance test results showed that TZ5 (5 % TiO₂- zeolite) degraded ammonia gas better than other samples.