载银羟基磷灰石抗菌粉体和陶瓷的制备及抗菌性能  

Preparation and Antibacterial Property of Ag-Doped Hydroxyapatite Antibacterial Powders and Antibacterial Ceramic

作　　者：徐伏秋[1] 陈华军[1] 丁梧秀[1] 

机构地区：[1]f洛阳理工学院环境工程与化学系,洛阳471023

出　　处：《无机化学学报》2013年第12期2582-2586,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.51279073);河南省科技攻关课题(No.132102310367)资助项目

摘　　要：采用水热法一步合成载银羟基磷灰石抗菌粉体(Ag-HA),并将其应用于抗菌陶瓷的制备。研究结果表明水热条件下HA实际载银量与AgNO3加入量存在较好的线性关系。XRD和TEM分析结果显示Ag-HA与HA具有相同的晶体结构,水热条件下Ag+取代Ca2+在HA晶体中的位置,生成Ag x Ca10-x(PO4)6(OH)2。Ag-HA长度随Ag+掺入量的增加而增大,当Ag+掺入量增加至1.50%时,Ag-HA由棒状生长为晶须状。选择4.50%Ag-HA作为抗菌粉体,其掺入量为9wt%时,陶瓷的抗菌率>99.9%,此时釉料中Ag3PO4含量为0.56%,低于目前研究中釉料中Ag3PO4添加量(2wt%～4wt%),不但在一定程度上解决了抗菌陶瓷产品成本较高的问题,而且满足JC/T 897-2002(抗菌陶瓷制品抗菌性能)对抗菌陶瓷抗菌性能的要求。Silver doped hydroxyapatite antimicrobial powders were synthesized by one-step reaction, then it was used for preparing antibacterial ceramic. The experimental results show that there was a significant linear correlation between silver content of HA and quantity of silver nitrate at hydrothermal condition. The XRD patterns and TEM photos indicate that HA and Ag-HA have the same crystal structure, and Ca2＋ in HA crystals is displaced by Ag＋ and Ag,Ca10-x（PO4）6（OH）2 was produced at hydrotherrnal condition. The length of Ag-HA antimicrobial powders increases with the increase of content of Ag ＋ in Ag-HA. Ag-HA antimicrobial powders went from sticks to whisker when the contents of Ag＋ in Ag-HA exceeds 1.5%. 4.50% Ag-HA was selected as antimierobial powders, an antibacterial rate of antibacterial ceramic is above 99.9%. and at this point, the mass fraction of tglazes of also meet Ag3PO4 in antimicrobial tglazes is 0.56%, which was far below 2wt%-4wt% of Ag3PO4 in antimicrobial ongoing research. This technology can not only reduce the cost of producing antibacterial ceramic, but JC/T 897-2002 demands for antibacterial properties of antibacterial ceramic.

关 键 词：银 羟基磷灰石 水热合成 抗菌 陶瓷 

分 类 号：O613.72[理学—无机化学]