三明治结构银碳复合材料的制备与表征-中国材料进展

文章信息/Info

Title:: Preparation and characterization of sandwich-like Ag-C-Ag nanocomposites

作者:: 郝亚敏1; 2; 杨维佳1; 2; 闫翎鹏1; 2; 杨永珍1; 2; 刘旭光1; 3; 许并社1; 2; 1. 新材料界面科学与工程教育部重点实验室（太原理工大学）；山西太原，030024 2. 太原理工大学新材料工程技术研究中心；山西太原，030024 3. 太原理工大学化学化工学院；山西太原，030024

Author(s):: HAO Yaming 1; 2; YANG Weijia 1; 2; YAN Lingpeng 1; 2; YANG Yongzhen 1; 2; LIU Xuguang 1; 3; XU Bingshe 1; 2; (1. Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, China) (2. Research Center on Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China) (3. College of Chemistry and Chemical Engineering, Taiyuan University of Technology,Taiyuan 030024, China)

摘要:: 本文采用一步水热法，以葡萄糖为碳源、硝酸银为银源，在水热温度190℃的条件下制备出三明治结构的银碳复合材料，该材料同时实现了碳微球对银纳米粒子的包覆与负载。利用场发射扫描电子显微镜、透射电子显微镜、傅立叶红外光谱仪、X-射线衍射仪及热重分析仪等检测手段表征了产物的形貌和结构特征。结果表明：在水热条件下碳微球同时实现了对银纳米粒子的包覆与负载；所得三明治结构复合物表面含有大量含氧官能团且表面显负电性；热重分析表明复合物的含银量约为5.51%。抗菌实验分析表明样品对大肠杆菌和金黄色葡萄球菌具有良好的抗菌性，可以作为抗菌材料。

Abstract:: Silver nanoparticles were encapsulated in and loaded on a carbonaceous shell under hydrothermal condition at 190℃. In this one-pot synthesis, glucose was used as the reducing agent to react with Ag+, and also served as the source of carbonaceous shells. The morphologies and microstructures of the products were characterized by field emission scanning electron microscopy, transmission electron microscopy, Fourier transformation infrared spectrometry, X-ray diffraction and thermogravimetry. These results indicate that the products are negatively charged and there are lots of functional groups on the surface of the products. The silver content of products is about 5.51%. Moreover, the sandwich-like Ag-C-Ag nanocomposites showed strong antibacterial activity against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus.