Catalytic ozonation for the degradation of acetylsalicylic acid in aqueous solution by magnetic CeO2 nanometer catalyst particles

Fe3O4/multi-walled carbon nanotubes as an efficient catalyst for catalytic ozonation of p-hydroxybenzoic acid

“…In addition, the results also indicated that the adsorption of p-HBA and ozone on the surface of the catalyst was important step for catalytic ozonation. Previous research (Dai et al 2014) also revealed that the utilization efficiency of ozone can be improved when adding the catalyst, this improvement also accelerated the degradation of p-HBA.…”

“…Rare earth oxides (Faria et al 2009;Dai et al 2014), transition metal oxides (Ichikawa et al 2014;Turkay et al 2014), carbon materials Saleh and Gupta 2014;Wang 2015) and molecular sieve (Li et al 2014) are frequently used as catalysts. Among them, carbon-based materials, especially multi-walled carbon nanotubes (MWCNTs), have received increasing attention owing to its excellent characteristics, for example, (1) the high mesoporous area is favorable to the fluidity and mass transfer of reactants on catalyst surface; (2) the functional groups on MWCNTs surface are beneficial to their dispersion in water; (3) the resistance to abrasion and acidic/basic environments makes them suitable for intense oxidation circumstances, MWCNTs have been widely used as catalyst or catalyst support in wastewater treatment Gupta 2011, 2012b;Zhang et al 2013).…”

Investigating the potential of carbon activated with NH4Cl for catalyzing the degradation and mineralization of antibiotics in ozonation process

“…The percentage of ozone consumption during amoxicillin degradation for each application of ozone to the reactor was calculated as (Dai et al, 2014):…”

Chemically controlled growth of porous CeO2 nanotubes for Cr(VI) photoreduction

“…Besides being a reducible oxide with O 2 storage capacity, when used as catalyst support, it is capable of interacting with electron-rich surface heteroatoms (X = O or N) which are able to adsorb onto the surface via weak coordination and create new electron donor, strengthening UV light absorbance and favoring catalytic reactions [28]. Recently, CeO 2 and CeO 2 -based composite nanostructures have been reported to possess immense potential for applications in wastewater treatment due to its biological and chemical inertness, strong oxidizing capability, cyclic usability as well as extended stability against chemical corrosion [29][30][31][32]. However, tailoring morphology to generate more active sites, constructing special microstructures to localize the incident light, modulating reaction environment to change the surface property are still the most important factors promoting the practical applications of CeO 2 materials for cleaning water.…”