Abstract
ZnO/palygorskite nanocomposites were facilely synthesized as antibacterial agent by a hydrothermal method using different types of surfactants including sodium dodecyl sulfate, polyvinyl pyrrolidone and cetyltrimethylammonium bromide. The nanocomposites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction field emission scanning electron microscopy, transmission electron microscope, energy dispersive spectrometer, Brunauer–Emmett–Teller analysis and zeta potential. The results showed that the morphologies and antibacterial properties of ZnO/palygorskite nanocomposites could be controlled by changing the types of surfactants. The minimum inhibitory concentration of ZnO/palygorskite nanocomposites prepared with sodium dodecyl sulfate against E. coli was 1.5 mg/mL, while it was 0.5 mg/mL for ZnO/palygorskite prepared with cetyltrimethylammonium bromide against S. aureus. The experimental results suggested that the ZnO/palygorskite nanocomposites might be served as a potential antibacterial agent in animal feeding.
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