首先,采用溶胶-凝胶法以锆酸四丁酯为原料制备了直径约为230 nm单分散性ZrO2亚微球;然后,以ZrO2为前体,加入少量AgNO3,用物理方法将Sn2+离子吸附在ZrO2表面,Ag+被还原成Ag0负载在ZrO2表面合成Ag@ZrO2晶种,加入甲醛合成核-壳纳米Ag@ZrO2复合材料;最后用TEM、XRD和UV-Vis对制备的ZrO2和Ag@ZrO2进行表征,并研究其对金黄色葡萄球菌(S.aureus)和大肠杆菌(E.coli)的抑菌性能.结果表明:当Ag浓度为0.6 mg/mL时,Ag@ZrO2对S.aureus和E.coli的抑菌率分别为95.5％和99.0％.因此,Ag@ZrO2作为理想的抗菌材料可以应用于日常生活和医疗实践中.
参考文献
| [1] | HUANJUN ZHANG;GUOHUA CHEN.Potent Antibacterial Activities of Ag/TiO2 Nanocomposite Powders Synthesized by a One-Pot Sol-Gel Method[J].Environmental Science & Technology: ES&T,20098(8):2905-2910. |
| [2] | Lim YT.;Park OO.;Jung HT..Gold nanolayer-encapsulated silica particles synthesized by surface seeding and shell growing method: near infrared responsive materials[J].Journal of Colloid and Interface Science,20032(2):449-453. |
| [3] | Chen, Shao;Li, Jian;Qian, Kun;Xu, Wei;Lu, Yang;Huang, Wei;Yu, Shu.Large scale photochemical synthesis of M@TiO_2 nanocomposites (M = Ag, Pd, Au, Pt) and their optical properties, CO oxidation performance, and antibacterial effect[J].Nano Research,20104(4):244-255. |
| [4] | 王德松;张艳艳;安静;罗青枝;李雪艳.Ag/低分子量壳聚糖复合胶乳的制备及抗菌性能[J].复合材料学报,2014(5):1250-1257. |
| [5] | Ziwei Deng;Haibao Zhu;Bo Peng.Synthesis of PS/Ag Nanocomposite Spheres with Catalytic and Antibacterial Activities[J].ACS applied materials & interfaces,201210(10):5625-5632. |
| [6] | Yichun Liu;Mingya Zhong;Guiye Shan.Biocompatible ZnO/Au Nanocomposites for Ultrasensitive DNA Detection Using Resonance Raman Scattering[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200820(20):6484-6489. |
| [7] | Seong Keun Kim;Sora Han;Woojin Jeon.Impact of Bimetal Electrodes on Dielectric Properties of TiO2 and AI-Doped TiO2 Films[J].ACS applied materials & interfaces,20129(9):4726-4730. |
| [8] | Xi Chen;Zhanfeng Zheng;Xuebin Ke.Supported silver nanoparticles as photocatalysts under ultraviolet and visible light irradiation[J].Green chemistry,20103(3):414-419. |
| [9] | Hong Xie;Junling Lu;Mayank Shekhar.Synthesis of Na-Stabilized Nonporous t?ZrO2 Supports and Pt/t-ZrO2 Catalysts and Application to Water-Gas-Shift Reaction[J].ACS catalysis,20131(1):61-73. |
| [10] | Nanfeng Zheng;Galen D.Stucky.A General Synthetic Strategy for Oxide-Supported Metal Nanoparticle Catalysts[J].Journal of the American Chemical Society,200644(44):14278-14280. |
| [11] | Liang-Shu Zhong;Jin-Song Hu;Zhi-Min Cui.In-Situ Loading of Noble Metal Nanoparticles on Hydroxyl-Group-Rich Titania Precursor and Their Catalytic Applications[J].Chemistry of Materials: A Publication of the American Chemistry Society,200718(18):4557-4562. |
| [12] | R. Grabowski;J. Sloczynski;M. Sliwa.Influence of Polymorphic ZrO2 Phases and the Silver Electronic State on the Activity of Ag/ZrO2 Catalysts in the Hydrogenation of CO2 to Methanol[J].ACS catalysis,20114(4):266-278. |
| [13] | Widoniak J;Eiden-Assmann S;Maret G.Synthesis and characterisation of monodisperse zirconia particles[J].European journal of inorganic chemistry,200515(15):3149-3155. |
| [14] | Yoshio Kobayashi;Veronica Salgueirino-Maceira;Luis M. Liz-Marzan.Deposition of Silver Nanoparticles on Silica Spheres by Pretreatment Steps in Electroless Plating[J].Chemistry of Materials,20015(5):1630-1633. |
| [15] | Ye, XY;Zhou, YM;Sun, YQ;Chen, J;Wang, ZQ.Preparation and characterization of SiO2/ZrO2/Ag multicoated microspheres[J].Applied Surface Science,20087(7):1942-1946. |
| [16] | Zhang YW;Peng HS;Huang W;Zhou YF;Yan DY.Facile preparation and characterization of highly antimicrobial colloid Ag or Au nanoparticles[J].Journal of Colloid and Interface Science,20082(2):371-376. |
| [17] | Michal Moritz;Malgorzata Geszke-Moritz.The newest achievements in synthesis, immobilization and practical applications of antibacterial nanoparticles[J].Chemical engineering journal,2013:596-613. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%