| abstract |
The invention discloses a visible light catalyst, a preparation method thereof, a persulfate system activated by the visible light catalyst and an application thereof. The visible light catalyst comprises a carbon material, a transition metal compound and a coating material. The carbon material is a conductive carbon material, and the transition metal compound is selected from One or more of transition metal oxides, transition metal sulfides, and transition metal-containing acids or salts. The visible light catalyst has high visible light catalytic activity, and it has the ability to degrade organic pollutants and can activate persulfate. The two synergistically degrade refractory organic pollutants. The field has good application prospects. The visible light catalyst activated persulfate system of the present invention overcomes the problem of incomplete degradation of organic pollutants by the persulfate oxidation technology, and the granular visible light catalyst is easy to recover and reduces the traditional iron-based persulfate. Risk of secondary contamination caused by activators. |