(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)
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DOI:
10.7502/j.issn.1674-3962.2015.05.06
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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.