A composite oxide particle filter medium and its preparation method

By using ceria-tricobalt oxide-nickel oxide ternary composite oxide and graded channel structure, combined with pH-responsive coating and antibacterial properties, the existing filter material has been solved, and the effect of efficient removal of multiple pollutants and prolonging service life is achieved.

CN119971625BActive Publication Date: 2025-06-20HENAN NORMAL UNIV +1
2 Cites 0 Cited by

Patent Information

Application Number
CN202510459721.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2025-06-20
Estimated Expiration
2045-04-14

AI Technical Summary

Technical Problem

Existing filters have single functions when dealing with complex pollutants, making it difficult to remove multiple pollutants at the same time, and are prone to blockage and secondary pollution during long-term use.

Method used

The ternary composite oxide of ceria-tricobalt oxide-nickel oxide is used as the core material, combining the graded channel structure and pH-responsive coating, surface-loaded copper nanoparticles and upconverted nanoparticles, and grafting the antibacterial properties of quaternary ammonium salt compounds on the surface.

Benefits of technology

It greatly improves the degradation ability of the filter material to pollutants under visible and infrared light, extends the service life of the filter material, prevents secondary pollution, and maintains a stable purification effect.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention discloses a composite oxide particle filter material and a preparation method thereof, specifically relating to the technical field of oxide particle filter materials. The filter material uses a ternary composite oxide of cerium dioxide-cobalt tetroxide-nickel oxide as the core material, has a hierarchical pore structure, and is coated with a pH-responsive coating on the surface. The preparation method includes S1, biological template pretreatment, S2, sol-gel synthesis, S3, hierarchical pore construction, and S4, surface modification. The present invention takes the ternary composite oxide of cerium dioxide-cobalt tetroxide-nickel oxide as the core, and with the help of hierarchical pores, surface copper nanoparticles, and internal upconversion nanoparticles, efficiently degrades pollutants under visible light and infrared light. The quaternary ammonium salt compounds grafted on the surface have good antibacterial properties, can inhibit the growth of microorganisms, and extend the service life of the filter material. The overall preparation process is suitable for industrial production.
Need to check novelty before this filing date? Find Prior Art