Preparation and characterization of anti-bacterial nonwovens by magnetron sputtering rare-earth activated TiO_2 onto PET fabric

Low temperature RF magnetic sputtering is applied to deposit nano-structured film of TiO_2 and rare-earth Nd on the surface of PET nonwoven.Therefore,absorption spectrum of TiO_2 is widened and better anti-bacterial performance under visible light is conferred.In this way,the anti-bacterial function of surface is realized for textile material.The anti-bacterial performances of nonwovens covered with nanosized films of TiO_2,Nd and laminated component were measured by shake flask test.The results showed that a certain quantity of rare-earth Nd can effectively improve the anti-bacterial performance of nano-sized TiO_2 film.And the AFM and XRD tests indicated that the crystal structure of the nano-sized laminated TiO_2/Nd film on the surface of PET nonwoven is of anatase form with better crystallinity and multi-layer growth mode.