Novel magnetically separable nanomaterials for heterogeneous catalytic ozonation of phenol pollutant: NiFe2O4 and their performances

Removal of sulfamethoxazole from aqueous solution by sono-ozonation in the presence of a magnetic catalyst

“…The adsorbed H 2 O dissociates into OH À and H + , forming surface hydroxyl groups with the surface metal and oxygen sites, respectively [33,34]. It was reported that the surface hydroxyl groups of the solid metal oxide were one of the active sites in heterogeneous catalytic ozonation [7,33]. In the meanwhile, ozone shows strong affinity to Lewis acid sites on the surface of metal oxide, enhancing the redox process involved in ozone decomposition [35,36].…”

“…When a metal oxide is introduced into water, it tends to strongly adsorb H 2 O molecules. The adsorbed H 2 O dissociates into OH À and H + , forming surface hydroxyl groups with the surface metal and oxygen sites, respectively [33,34]. It was reported that the surface hydroxyl groups of the solid metal oxide were one of the active sites in heterogeneous catalytic ozonation [7,33].…”

Cobalt modified red mud catalytic ozonation for the degradation of bezafibrate in water: Catalyst surface properties characterization and reaction mechanism

“…Catalytic ozonation with solid catalysts has attracted increasing interest in drinking water and wastewater treatment for many years [12,13]. In a previous study, we used catalytic ozonation with cobaltdoped red mud (Co/RM) to degrade BZF in water, which resulted in better performance and detoxification than un-doped RM [14].…”

Efficient catalytic ozonation by ruthenium nanoparticles supported on SiO 2 or TiO 2 : Towards the use of a non-woven fiber paper as original support

“…Powders are usually preferred because external diffusion limitations are rare [5]. Nevertheless, depending on the size of the support, the catalyst recovery from the treated water is complicated even if new magnetic catalysts are now developed to easily recover them using magnets [17,18]. Few studies focused on fixed supports such as monoliths, which are appealing because of an easy implementation at industrial scale [19].…”