Synthesis and physicochemical characterizations of nanostructured Pd/carbon-clinoptilolite-CeO2 catalyst for abatement of xylene from waste gas streams at low temperature

Xylene removal from waste gas streams was carried out via catalytic oxidation over Pd/carbon-clinoptilolite-CeO2. The synthesized samples were characterized by XRD, FESEM, BET, FTIR and TG techniques. The XRD patterns confirmed the formation of nano ceria with an average crystallite size of 11.6 nm. FESEM results indicated a good morphology for prepared carbon with deep pores, confirmed structure modification of zeolite, and showed that nanocatalyst has nanometric particles with an average size of 60.85 nm. Reaction data illustrated 98% abatement of xylene at 250 °C. The stability test of catalyst demonstrated that the removal efficiency has remained constant for 1200 min.