Selective activation of peroxymonosulfate to singlet oxygen by engineering oxygen vacancy defects in Ti₃CNT_x MXene for effective removal of micropollutants in water.

ABSTRACT: Defect engineering is an effective strategy to boost the catalytic activity of MXene towards heterogeneous peroxymonosulfate (PMS) activation for water decontamination. Herein, we developed a facile approach to fine-tune the generation of oxygen vacancies (OVs) on Ti₃CNT_x crystals by Ce-doping (Ce-Ti₃CNT_x) with the aim of mediating PMS activation for the degradation of micropollutants in water. By varying the dopant content, the OV concentrations of Ti₃CNT_x could be varied to enable the activation of PMS to almost 100% singlet oxygen (¹O₂), and hence the effective degradation of sulfamethoxazole (SMX, a model micropollutant). Various advanced characterization techniques were employed to obtain detailed

SUBMITTER: Jin L 

PROVIDER: S-EPMC11630680 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature