| This article focuses on the nano-titanium dioxide photocatalytic antibacterial materialadvantages and disadvantages of their own, and the preparation methods, and theantibacterial mechanism of photocatalytic titanium dioxide, and according to recentresearch on the antibacterial performance, leads to a research background, significance andmethods.In this paper, the sol-hydrothermal synthesis of doped nano-titanium dioxidephotocatalytic materials. Using tetrabutyl titanate and ethanol as the reactant to prepare ahomogeneous, stable, transparent clear titania sol. Based on the impact of various factorson the sol, select the best ratio and optimum process conditions, and on this basis prepareddoped nano-titanium dioxide. By transmission electron microscopy (TEM), X-raydiffraction (XRD) and so on a variety of powder characterization.In view of the nano-titanium dioxide photocatalytic antibacterial material is derivedfrom the antibacterial mechanism of action of hydroxyl radicals, so this article establisheda quick and effective method of measuring the three hydroxyl radicals:(1) fluorescence (2)spectrophotometry (3) a method of electron spin. Be detected by the above three methodsradical and find the best and most effective method for the detection of antimicrobial type.Research methods whereby the same time, nano-titanium dioxide photocatalyticmaterials antimicrobial resistance test, respectively Ag-doped titanium dioxide andLa-doped titanium dioxide material qualitative and quantitative effects of the differentexperimental conditions on the antimicrobial properties of different strains of. Finally, thecompound of two elements Ag and La-made antibacterial properties of dopednano-titanium dioxide. |
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