Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8027798 | Surface and Coatings Technology | 2014 | 9 Pages |
Abstract
Present work is devoted to investigation of structure and functional properties of hybrid nanomaterials based on the TiO2-modified cellulose fibers of cotton. The titania hydrosol was successfully prepared using the titanium tetraisopropoxide as precursor and the nitric acid as peptizing agent via the low-temperature sol-gel synthesis in aqueous medium and applied to cotton fabric. For cross-linking of titania nanoparticles to cotton the 1,2,3,4-butanetetracarboxylic acid (BTCA) was used as a spacer. The morphology and composition of the surface pure and TiO2 modified cotton fibers were investigated by the scanning electron microscopy (SEM). The cotton/TiO2 composite was characterized by the dielectric permittivity. For the estimation of total titania concentration, all samples were calcined at 650 °C. The antimicrobial activity of the treated TiO2 cotton fibers was investigated against Escherichia coli as a model Gram-negative bacteria after exposure to UV-irradiation for 10 min.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
O.L. Galkina, A. Sycheva, Ð. Blagodatskiy, G. Kaptay, V.L. Katanaev, G.A. Seisenbaeva, V.G. Kessler, A.V. Agafonov,