Citation: Shao Zao Tan, Liu Cai Ding, Ying Liang Liu, You Sheng Ouyang, Yi Ben Chen. Synthesis and antibacterial activity of new layered perovskite compounds, Ag_xNa_2-xLa₂Ti₃O₁₀[J]. Chinese Chemical Letters, ;2007, 18(1): 85-88. doi: 10.1016/j.cclet.2006.11.025 shu

Synthesis and antibacterial activity of new layered perovskite compounds, Ag_xNa_2-xLa₂Ti₃O₁₀

a Department of Chemistry, Ji'nan University, Guangzhou 510632, China;
b Guangdong Institute of Microbiology, Guangzhou 510070, China

Received Date: 15 February 2006

Fund Project: The authors are grateful for the financial support of the National Natural Science Fundation of China (No. 50472077), the Natural Science Fundation of Guangdong Province (No. 05200555 and 2004B20201026), the Science and Technology Project Fund of Guangzhou City (No. 2005Z3-D2121), and the Natural Science Fundation of Jinan University (No. 51205013).

Three kinds of new layered perovskite compounds with Ruddlesden-Popper (R-P) phase, Ag_xNa_2-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 Ag_xNa_2-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 Ag_0.3Na_1.7La₂Ti₃O₁₀ 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.
- Layered perovskite compounds,
- Synthesis,
- Ion-exchange,
- Antibacterial activity
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