| 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 |
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| 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AgxCa10-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。 |
| 关键词: 银 羟基磷灰石 水热合成 抗菌 陶瓷 |
| 基金项目: 国家自然科学基金（No.51279073）和河南省科技攻关课题（No.132102310367）资助项目。 |
| Abstract: 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 AgxCa10-x(PO4)6(OH)2 was produced at hydrothermal 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 antimicrobial powders, an antibacterial rate of antibacterial ceramic is above 99.9%. and at this point, the mass fraction of Ag3PO4 in antimicrobial tglazes is 0.56%, which was far below 2wt%~4wt% of Ag3PO4 in antimicrobial tglazes of ongoing research. This technology can not only reduce the cost of producing antibacterial ceramic, but also meet JC/T 897-2002 demands for antibacterial properties of antibacterial ceramic. |
| Keywords: Ag hydroxyapatite(HA) hydro-thermal method antibacterial property ceramic |
| 投稿时间：2013-01-04 修订日期：2013-05-26 |
| 摘要点击次数: 1991 |
| 全文下载次数: 2110 |
| 徐伏秋,陈华军,丁梧秀.载银羟基磷灰石抗菌粉体和陶瓷的制备及抗菌性能[J].无机化学学报,2013,29(12):2582-2586. |
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