方解石载铜抗菌剂的制备及其在陶瓷中的应用研究  

Preparation of Calcite Loaded Copper Antimicrobial Agent and Its Application in Ceramics

作　　者：刘品乐 余婷 任立琴 朱文均 Liu Pinle;Yu Ting;Ren Liqin;Zhu Wenjun(Ceramic Research Institute of Light Industry of China,Jingdezhen,333000;School of Mechanical and Electrical Engineering,Jingdezhen Ceramic University,Jingdezhen,333403)

机构地区：[1]中国轻工业陶瓷研究所,景德镇333000 [2]景德镇陶瓷大学机械电子工程学院,景德镇333403

出　　处：《陶瓷研究》2024年第5期79-83,共5页Ceramic Studies

基　　金：景德镇市科技计划项目(项目编号:2023GY002-05)——《Ca-Mg-Si-Al-Cu系耐高温抗菌材料及其抗菌陶瓷的制备》。

摘　　要：以方解石和无水硫酸铜为原料,采用液相法制备了方解石载铜抗菌剂。利用X射线衍射仪(XRD)、方解石晶体结构基本保持一致,部分铜元素负载至方解石中,并以二价离子态形式存在。采用振荡法对方解石载铜抗菌剂的抗菌性能进行测试。结果表明:方解石载铜抗菌剂对大肠杆菌和金黄色葡萄球菌两种菌株的抗菌率均大于99.9%,最小杀菌浓度(MBC)均为0.8 g/L。样品表现出优异抗菌性能的原因是由于负载铜后样品表面带正电,通过静电作用与表面带负电的细菌进行反应,从而达到杀抑细菌效果。方解石载铜抗菌剂经1100℃高温煅烧后,仍具有强抑菌效果,将其添加至陶瓷釉料中制备出的抗菌陶瓷对大肠杆菌和金黄色葡萄球菌两种菌株的抗菌率均大于95%。本文为抗菌陶瓷的产业化提供了新的思路和理论依据。Calcite loaded copper antibacterial agent was prepared by liquid phase method using calcite and anhydrous copper sulphate as raw materials.The samples were characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),Zeta potential and nanoparticle size analyzer.The results of XRD and XPS show that the crystal structure of the samples was consistent with that of calcite,and some copper elements were loaded into calcite and existed in a divalent ionic state.The antibacterial properties of the calcite loaded copper antimicrobial agent were tested using the oscillation method.The results showed that the antibacterial performance of the calcite loaded copper antimicrobial agent was greater than 99.9%against both E.coli and S.aureus strains,with a Minimum Bactericidal Concentration(MBC)of 0.8 g/L.The excellent antibacterial performance of the samples was attributed to the positively charged surface of the copper loaded samples,which reacted with the negatively charged bacteria through an electrostatic effect to achieve the bactericidal effect.The calcite loaded copper antimicrobial agent was calcined at 1100℃ and still had a strong antibacterial effect.The antimicrobial ceramics prepared by adding it to the ceramic glaze had an antibacterial rate of>99%against both strains of E.coli and S.aureus.This paper provides a new idea and theoretical basis for the industrialization of antibacterial ceramics.

关 键 词：方解石 液相法 抗菌性能 最小杀菌浓度 抗菌陶瓷 

分 类 号：TB32[一般工业技术—材料科学与工程]