A comparative investigation on the decomposition of triclosan via synthesized heterogeneous nano-catalysts in the presence of peroxymonosulfate.

Advanced oxidation (AOPs) utilizing peroxymonosulfate (PMS) are efficient processes for the degradation of organic pollutants. This study aimed to synthesize and characterize cobalt ferrite (CoFe 2 O 4), graphene oxide (GO), MIL-101(Fe), and their composite structures. The nanomaterials were applied as catalysts by PMS for triclosan (TCS) decomposition. The maximum removal rates of TCS were 49.29, 66.13, 84.04, 89.73, and 100% for PMS alone, CoFe 2 O 4 , GO, MIL-101(Fe), and CoFe 2 O 4 /MIL-101(Fe)/GO with PMS, respectively. Metal ions leaching declined in CoFe 2 O 4 /MIL-101(Fe)/GO/PMS compared with others. Hence, the composite nanomaterials appear to be effective catalysts for the degradation of organic pollutants by PMS activation. [Display omitted] • Nanomaterials increased PMS activation in TCS removal compared with PMS alone. • The simple and composite forms of nano catalysts for PMS activation were studied. • The composite form was more efficient than simple ones in TCS decomposition. • The composite form decreased metal ions leaching compared with simple forms. [ABSTRACT FROM AUTHOR]