A method for mineralizing organic pollutants in surface water
By combining a photocatalyst with a heterogeneous Fenton catalyst, a photocatalytic self-Fenton catalytic system is formed, which solves the problem of low mineralization rate of organic pollutants under low intensity light and achieves efficient and stable degradation of organic pollutants.
Patent Information
- Application Number
- CN202410262352.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2044-03-07
AI Technical Summary
Existing photocatalytic Fenton catalysts exhibit low mineralization rates of organic pollutants under low-intensity light conditions and suffer from decreased catalyst stability due to free radical attack.
By combining a photocatalyst with a heterogeneous Fenton catalyst using a specific structure, a photocatalytic self-Fenton catalytic system is formed. Through the in-situ activation of oxygen-centered organic free radicals (OCORs) fixed on the surface of the photocatalyst with hydrogen peroxide, a highly oxidizing hydroxyl radical is generated, which improves the mineralization rate of organic pollutants and maintains the stability of the catalyst under low light intensity.
It improves the mineralization rate of organic pollutants under low light intensity, achieves a photon utilization rate of 32% at 470nm, and maintains high efficiency and stability after 10 cycles of use, adapting to the efficient degradation of organic pollutants under complex environmental conditions.