Pure aqueous nano-TiO2 solution was prepared by low temperature liquid phase method,and then Ag+was deposited on nano-TiO2 surface to obtain pure aqueous Ag+/TiO2 solution.It was characterized by scanning electron microscopy(SEM),X-ray energy spectrometer(EDS),X-ray diffractometer(XRD),X-ray photoelectron spectrometer(XPS),Fourier transform infrared spectrometer(FT-IR),Ultraviolet-visible light absorption spectrometer(UV-Vis)and fluorescence spectrometer(PL).After various characterization analysis,it can be seen that Ag+/TiO2 particles are spherical particles with a particle size of 10 nm,and the XRD charac-teristic peak is the superposition peak of anatase titanium dioxide and silver sulfate.In addition,the deposited Ag exists in the valence state of+1,and the photocatalytic activity of nano-TiO2 is improved,resulting in a synergistic effect.The results of antibacterial test show that the prepared pure aqueous Ag+/TiO2 solution has excellent antibacterial performance in different strains and different application environments,indication the high efficiency and broad spectrum of Ag+/TiO2 antibacterial,which has great market application value.
关键词
Ag+/TiO2溶液/低温液相/表面沉积/纯水相/抗菌
Key words
Ag+/TiO2 solution/low temperature liquid phase/surface deposit/pure aqueous phase/antibiosis
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