Preparations Of Nanometer ZnO/TiO₂ Powder And Their Applications In Textile Fibre

Since the concept of nano-material was presented in the 1980's, nano-materials have attracted many material researchers because of their extensive application foreground. Their preparation technique and application study hold a very important position in the present research of nano-materials. In this paper, we systematically study preparation and application of nano-TiO2 powder and nano-ZnO powder composted with textile. The multifunctional textile with anti-UV and anti-bacterial properties was obtained.Both nano-TiO₂ powder and nano-ZnO powder were prepared by solid state reaction at room temperature. With the aids of TEM and XRD analysis, there are studies as follows: the characterization of nano-TiO₂ and nano-ZnO powders; effects of preparation conditions on grain size, grain shape, and agglomeration etc. The proper preparation conditions of nano-TiO₂ and nano-ZnO powders were determined. Powders were obtained, which were less than 25 nm in grain size.Nano-ZnO/TiO₂ powders were modified on their surface by SiO₂. The structure of the product was characterized by TEM and FT-IR. The experimental results show that the film on the modified nano-ZnO/TiO₂'s surface is dense Silica, both antibacterial and UV-screen properties of the product are better than before.Nano-ZnO/TiO₂ powders were successfully composted with textile by post-treatment method. The dispersibility on the textile, anti-UV and antibacterial properties of nano-powders after composed were observed by SEI and ultraviolet spectrometer etc. The studies showed the UV-screen and anti-bacterial properties of the textile after post-treatment were better than before, and the properties have a little decrease after the multifunctional textile were washed for many times...