A fluorine-free etched Ti3C2-supported Cu 2-x Preparation and application methods of Se catalysts

Abstract

This invention discloses a fluorine-free etched Ti3C2-supported Cu 2‑x Preparation and application methods of Se catalysts, and the synthesis of Cu by coprecipitation and hydrothermal methods. 2‑x A composite catalyst of Se and magnetic metal oxides was used to activate PMS for the degradation of SMX in water. This achieved rapid and efficient degradation of SMX at room temperature and pressure, while ensuring low dissolution, high stability, and easy recovery of the magnetic metal oxide composite catalyst. In the magnetic metal oxide composite catalyst, Cu... 2‑x Se, as the core catalytic active center, is used to activate PMS to generate sulfate radicals and hydroxyl radicals; magnetic metal oxides, on the one hand, act as magnetic supports, endowing the composite material with magnetic separation and recovery characteristics, and on the other hand, their variable valence metal pairs can react with Cu. 2‑x Se synergistically catalyzes the activation of PMS. This invention can rapidly degrade SMX at room temperature and pressure, achieving a degradation rate of over 90% within 40 minutes.

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