中文摘要：

新分层的 perovskite 混合物， AgxNa2-xLa2Ti3O10 (x=0.2,0.3 并且 0.5 ) 被 Na2La2Ti3O10 的离子交换反应与 AgNO3 答案综合并且由精力描绘了散 X 光检查分析(EDX ) ， X 光检查 diffractometry (XRD ) ，扫描电子显微镜学(SEM ) 和 X 光检查光电子光谱学(XPS ) 。离子交换过程被优化，并且抗菌剂活动，轻 permanency 和水抵抗被评估。惊奇地，在 Na2La2Ti3O10 的晶体结构的重要变化都没被银离子的交换发现。Ag0.3Na1.7La2Ti3O10 粒子与不规则的形状和尺寸显然成球形。Ag0.3Na1.7La2Ti3O10，对 Escherichia 关口 i 拥有最小的禁止的集中(MIC )(E。关口 i ) ，葡萄球菌 aureus (S。aureus ) 180 mg/L 和 240 mg/L，举办高抗菌剂活动，好轻 permanency 和水抵抗。在 AgxNa2-xLa2Ti3O10 的离子的州的银是抗菌剂活性组份。

英文摘要：

New layered perovskite compounds, AgxNa（2-x）La2Ti3O10（x=0.2, 0.3 and 0.5） were synthesized by an ion-exchange reaction of Na2La2Ti3O10 with AgNO3 solution and characterized by energy dispersive X-ray analysis（EDX）, X-ray diffractometly（XRD）, scanning electron microscopy（SEM） and X-ray photoelectron spectroscopy（XPS）. The ion-exchange processes were optimized, and the antibacterial activity, light permanency and water-resistance were evaluated. Surprisedly, no significant changes in crystal structure of Na2La2Ti3O10 are found by the exchange of silver ions. The Ago.3Na1.7La2Ti3O10 particles conglomerate obviously with irregular shape and size. Ago.3Na1.7La2Ti3O10, possessing the minimum inhibitory concentrations（MICs） against Escherichia coli （E. coli）, Staphylococcus aureus （S. aureus） of 180 mg/L and 240 mg/L, has high antibacterial activity, good light permanency and water-resistance. The ionic state silver in AgxNa（2-x）La2Ti3O10 is the antibacterial active component.