Study on the Characterization and Bacteriostatic Effect of Nano-silver Synthesized from the Extract of Rudbeckia hirta L.
Using Rudbeckia hirta L.water extract as reducing and stabilizer agent,silver nanoparticles with small particle size were synthesized under the Xenon lamp irradiation.The silver nanoparticles were characterized by infrared spectrum,UV-vis spectrum,X-ray diffraction and transmission electron microscopy.The bacteriostatic experiment of the silver nanoparticles was also studied and the results exhibit a good bacteriostatic effect on Escherichia coli and Staphylococcus aureus.
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