Efficient carbamazepine degradation with Fe doped 1T/2H hybrid molybdenum disulfide as peroxymonosulfate activator under high salinity wastewater.

Drawing on the robust activation activity and affinity that transition metal ions and MoS exhibit towards peroxymonosulfate (PMS), 1T/2H hybrid molybdenum disulfide doped with Fe (Fe/N-MoS) was synthesized to activate PMS for the treatment of organic wastewater. The ultrathin sheet morphology and 1T/2H hybrid nature of Fe/N-MoS were confirmed by characterization. The (Fe/N-MoS + PMS) system demonstrated excellent performance in the degradation of carbamazepine (CBZ) above 90% within 10 min even under high salinity conditions. By electron paramagnetic resonance and active species scavenging experiments, it was inferred that SO palyed a dominant role in the treatment process. The strong synergistic interactions between 1T/2H MoS and Fe efficiently promoted PMS activation and generated active species. Additionally, the (Fe/N-MoS + PMS) system was found to be capable of high activity for CBZ removal in high salinity natural water, and Fe/N-MoS exhibited high stability during recycle tests. This new strategy of Fe doped 1T/2H hybrid MoS for more efficient PMS activation provides valuable insights for the removal of pollutants from high salinity wastewater.