Highly active titanium oxide material, its preparation method and its application in removing harmful inorganic anions

CN122355340APending Publication Date: 2026-07-10EAST CHINA UNIV OF SCI & TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610654603.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-13
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing adsorption materials have insufficient adsorption capacity and selectivity when removing harmful inorganic anions, especially fluoride and phosphate ions, from water bodies. They also have weak adsorption affinity under low concentration conditions, making it difficult to achieve efficient and stable removal. Furthermore, they are easily affected by pH value and coexisting ions in complex water quality environments.

Method used

Highly active titanium oxide materials are used to prepare nano-titanium oxides with protonated hydroxyl groups on the surface via the sol-gel method. Combining physical and chemical adsorption, the abundant surface protonated sites are used to form a stable internal coordination bond structure with harmful inorganic anions, thereby achieving efficient removal.

Benefits of technology

It significantly enhances the binding strength between anions and the titanium oxide-based framework, improves the adsorption performance for fluoride and phosphate ions, and reduces costs and avoids secondary pollution through the recycling of desorption and regeneration solutions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122355340A_ABST
    Figure CN122355340A_ABST
Patent Text Reader

Abstract

This invention discloses a highly active titanium oxide material, its preparation method, and its application in removing harmful inorganic anions. Belonging to the field of inorganic materials technology, the method involves mixing a hydrochloric acid solution with a titanium compound solution, stirring to obtain a homogeneous solution, mechanically stirring the solution under heating conditions, cooling to room temperature, concentrating by rotary evaporation, and drying to obtain the highly active titanium oxide material. This material exhibits low crystallinity and small size, demonstrating excellent adsorption performance for fluoride and phosphate ions. By utilizing desorption and regeneration solutions, the highly active titanium oxide material can be recycled, reducing reagent consumption and lowering the cost of practical applications. Furthermore, it can effectively enrich fluoride ions, converting them into chemicals with other economic value.
Need to check novelty before this filing date? Find Prior Art