| Synthesis and antibacterial activity of new layered perovskite compounds, AgxNa2-xLa2Ti3O10 |
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| 作者姓名： | Shao Zao Tan Liu Cai Ding Ying Liang Liu You Sheng Ouyang Yi Ben Chen |
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| 作者单位： | a，* |
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| 基金项目： | 国家自然科学基金;广东省自然科学基金;广州市科技发展基金;暨南大学校科研和教改项目 |
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| 摘 要： | Three kinds of new layered perovskite compounds with Ruddlesden-Popper(R-P)phase,Ag_xNa_(2-x)La_2Ti_3O_(10)(x=0.2,0.3 and 0.5),were synthesized by an ion-exchange reaction of Na_2La_2Ti_3O_(10)with AgNO_3 solution.The structures of the compounds were characterized by EDX and XRD,and their antibacterial activity and light-resistance property were evaluated.The results indicated that the molecular formula of Ag_xNa_(2-x)La_2Ti_3O_(10)(x=0.2,0.3 and 0.5)was confirmed,and that the crystalline structure of Na_2La_2Ti_3O_(10)was not obviously affected by exchange of silver ion.The minimum inhibitory concentrations(MICs)of Ag_(0.3)Na_(1.7)La_2Ti_3O_(10)against Escherichia coli(E.coli),Staphylococcus aureus(S.aureus)were 180μg/mL and 240μg/mL, respectively,while its discoloration was not observed after 24 h light ageing test.
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| 关 键 词： | 分层钙钛矿型化合物 合成 抗菌活性 离子交换性质 银离子 |
| 收稿时间： | 2006-02-15 |
Synthesis and antibacterial activity of new layered perovskite compounds, AgxNa2-xLa2Ti3O10 |
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| Shao Zao Tan Liu Cai Ding Ying Liang Liu You Sheng Ouyang Yi Ben Chen.Synthesis and antibacterial activity of new layered perovskite compounds, AgxNa2-xLa2Ti3O10[J].Chinese Chemical Letters,2007,18(1):85-88. |
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| Authors: | Shao Zao Tan Liu Cai Ding Ying Liang Liu You Sheng Ouyang Yi Ben Chen |
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| Institution: | 1. Department of Chemistry, Ji’nan University, Guangzhou 510632, China;2. Guangdong Institute of Microbiology, Guangzhou 510070, China |
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| Abstract: | Three kinds of new layered perovskite compounds with Ruddlesden-Popper (R-P) phase, AgxNa2−xLa2Ti3O10 (x = 0.2, 0.3 and 0.5), were synthesized by an ion-exchange reaction of Na2La2Ti3O10 with AgNO3 solution. The structures of the compounds were characterized by EDX and XRD, and their antibacterial activity and light-resistance property were evaluated. The results indicated that the molecular formula of AgxNa2−xLa2Ti3O10 (x = 0.2, 0.3 and 0.5) was confirmed, and that the crystalline structure of Na2La2Ti3O10 was not obviously affected by exchange of silver ion. The minimum inhibitory concentrations (MICs) of Ag0.3Na1.7La2Ti3O10 against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) were 180 μg/mL and 240 μg/mL, respectively, while its discoloration was not observed after 24 h light ageing test. |
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| Keywords: | Layered perovskite compounds Synthesis Ion-exchange Antibacterial activity |
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