Preparation method and application of rare earth-silver antibacterial material

By synthesizing rare earth-silver antibacterial materials through a liquid-phase method, the problems of uneven composition and long-term high-temperature reaction have been solved, achieving high specific surface area and excellent antibacterial effect, suitable for antibacterial paints and paper.

CN120477210BActive Publication Date: 2026-06-16HANGZHOU BAOTOU RARE EARTH TECH DEV CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU BAOTOU RARE EARTH TECH DEV CO LTD
Filing Date
2025-05-15
Publication Date
2026-06-16

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Abstract

The application discloses a preparation method of a rare earth-silver antibacterial material, and comprises the following steps: preparing a mixed solution by mixing chlorinated rare earth, zinc chloride and zirconium oxychloride, heating the mixed solution, then adding PEG, adding glacial acetic acid, adding ammonium bicarbonate solution into the mixed solution after the addition is completed, filtering after reaction, obtaining a precipitate, and obtaining a first reactant by drying; slurry is prepared by using deionized water for the first reactant, concentrated phosphoric acid is added, then 1-butyl-3-methyl imidazole dibutyl phosphate salt is added, reaction is carried out for a period of time, filtering, drying, obtaining a second reactant; silver nitrate solution is added into the second reactant, reaction is carried out for a period of time, filtering, washing, drying, calcining, and obtaining the rare earth-silver antibacterial material. The application overcomes the problems of uneven composition and poor antibacterial performance of the antibacterial material prepared by using a simple physical mixing method, and overcomes the problems of high reaction temperature and long reaction time of the antibacterial material synthesized by using an ordinary liquid phase method.
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