Facile fabricate of novel Co(OH)F@MXenes catalysts and their catalytic activity on bisphenol A by peroxymonosulfate activation: The reaction kinetics and mechanism

Abstract

Herein, a novel of Co(OH)F@MXenes nanomaterials with unique structure as the catalyst for activating peroxymonosulfate (PMS) to degrade bisphenol A (BPA) is reported. The properties of as-prepared catalyst were tested by diverse of characterization techniques. Importantly, the Co(OH)F@MXenes activates PMS to degrade BPA more efficiently (96.3% within 40 min) and stably than traditionally Co3O4 and CoO nanomaterials. Different influence factors of BPA degradation were also examined, including different catalyst, pH, temperature, BPA concentrations, PMS dosage, catalyst dosage and co-existing ions. The existence of Cl− and H2PO4− exhibit distinct positive synergistic effects on the catalytic process. The XPS and ICP techniques were applied to illustrate that the leach amount of cobalt ion was very litter. Thus, the reusable ability of Co(OH)F@MXenes without significant efficiency loss after multiple cycles. These results demonstrate that Co(OH)F@MXenes is an promisingly effective catalyst to activating PMS for BPA remove.