A cerium oxide-nano silver composition, a ceramic glaze and a preparation method and application thereof
By combining lanthanum-cobalt modified cerium oxide and copper-modified nano-silver, the problems of poor antibacterial effect and insufficient stability of existing ceramic tiles have been solved, achieving highly efficient antibacterial properties and high strength in ceramic tiles.
CN122167021APending Publication Date: 2026-06-09THE GBA NAT INST FOR NANOTECHNOLOGY INNOVATION
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Patent Information
- Application Number
- CN202411797615.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Most existing antibacterial agents for ceramic tiles are single silver ion antibacterial agents, which are difficult to effectively improve the antibacterial effect of ceramic tiles, and the stability of ceramic glaze and the compressive strength of ceramic tiles are insufficient.
Method used
A composition of lanthanum-cobalt modified cerium oxide and copper modified nano-silver was used. By controlling the ratio of their dosage, the antibacterial effect of cerium oxide and nano-silver was promoted, and the stability of ceramic glaze and compressive strength of ceramic tiles were improved.
Benefits of technology
It significantly improves the antibacterial effect of the tiles and enhances the stability of the ceramic glaze and the compressive strength of the tiles.
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Figure CN122167021A_ABST
Abstract
This invention discloses a cerium oxide-nano silver composition, a ceramic glaze, its preparation method, and its application. The cerium oxide-nano silver composition comprises the following components in parts by weight: 100 parts of lanthanum-cobalt modified cerium oxide and 30-100 parts of copper-modified nano silver. The lanthanum-cobalt modified cerium oxide is prepared by mixing an alcohol solution A containing cerium salt, lanthanum salt, and cobalt salt, and an alcohol solution B containing hexamethylenetetramine, adding water, and heating to react, thereby obtaining lanthanum-cobalt modified cerium oxide. The copper-modified nano silver is prepared by adding borohydride to an aqueous solution containing silver salt, copper salt, and a dispersant to react, thereby obtaining copper-modified nano silver. The cerium oxide-nano silver composition of this invention, by controlling the ratio of lanthanum-cobalt modified cerium oxide to copper-modified nano silver, promotes and activates the antibacterial effects of cerium oxide and nano silver, which is beneficial for improving the antibacterial effect of ceramic tiles prepared using the cerium oxide-nano silver composition.
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