Zeolites as Alternative Catalysts for the Oxidation of Persistent Organic Pollutants

Total oxidation of naphthalene using palladium nanoparticles supported on BETA, ZSM-5, SAPO-5 and alumina powders

“…Methods such as biodegradation, high-energy electron beam irradiation, ozonization, adsorption, thermal incineration or catalytic oxidation have been employed to reduce the level of PAHs [2,[10][11][12][13][14][15]. Despite the numerous options, catalytic oxidation to produce carbon dioxide and water is the most promising technology due to its lower operating temperature and/or higher selectivity to CO 2 [4,16].…”

Total oxidation of naphthalene at low temperatures using palladium nanoparticles supported on inorganic oxide-coated cordierite honeycomb monoliths

“…Naphthalene is considered the least toxic and simplest molecule of the PAHs, and thus it is used as a model compound for this group of pollutants. In the literature, a range of different technologies have been studied to reduce PAH emissions [6][7][8][9][10][11][12][13]. 25 Among them, catalytic combustion is the most promising for the removal of PAHs from polluted air streams, due to its lower operating temperature and higher selectivity towards CO 2 [2].…”

Property and performance of red mud-based catalysts for the complete oxidation of volatile organic compounds

“…Recently, Wu et al [54] reported that the presence of water vapor caused a decrease in the number of active sites available for toluene because of the competitive adsorption of water on the Ni-based catalyst surfaces in the plasma catalysis system. [52]. In the case of the 1 Pt/Al catalyst, however, the water vapor content had an insignificant effect on toluene conversion.…”

“…Lopez-Fonseca et al [50] and Taralunga et al [51], however, reported that steam had a beneficial effect on the oxidation of chlorinated compounds over zeolite and Pt/zeolite. Marie-Rose et al [52] reported that water vapor had an inhibitory effect on the complete oxidation of PAHs at a low water content over USHY and 0.8% PtUSHY catalysts, whereas the presence of water vapor had a positive effect on the complete oxidation of PAHs at high water contents. Kullavanijayam et al [53] reported that water vapor improved the activity of a Pt/ceria-alumina catalyst for cyclohexene oxidation, possibly due to the higher activity of Pt for steam reforming.…”