Enhanced Self‐cleaning, Antibacterial and UV Protection Properties of Nano TiO₂ Treated Textile through Enzymatic Pretreatment

Abstract

Textile materials can be treated with some enzymes to improve their functionality. The usual enzymatic treatment hydrolyzes the textile surfaces that leads to increase the functional groups. Here, the polyester/wool fabric as a blend of fibers fabric was selected and treated with the two different types of enzymes to increase the surface activity with a propose of higher nano-TiO(2) adsorption. The fabric was first treated with proteases and lipases to hydrolyze the wool and the polyester surfaces, respectively. It has been then dipped into an ultrasound bath containing nano TiO(2) and cross-linking agent followed by curing. The cross-linking agent, butane tetracarboxylic acid (BTCA), also assisted to enhance the nano-particles adsorption and stabilization on the fabric surface. The self-cleaning properties of the fabrics were examined through evaluating the color removal from the stained fabric with Acid Blue 113. The antibacterial properties were determined by reduction growth of a Gram-negative bacteria E. coli. and the UV protection was assessed by UV-reflectance spectrum. The SEM pictures and EDX spectrums of some samples were also reported.

Preparation of an orthodontic bracket coated with an nitrogen-doped TiO2-xNy thin film and examination of its antimicrobial performance

“…TiO2 is an inorganic photocatalytic agent with broadspectrum antimicrobial activity, heat resistance, and a long duration of action 10,11) . TiO2 is applied in two forms: in the first, TiO2 powder is dispersed in a medium in the form of particles.…”

Functional Modification with TiO2 Nanoparticles and Simultaneously Dyeing of Wool Fibers in a One-Pot Hydrothermal Process

“…The adsorption and stabilization of nanoparticles coated on fabric surface are greatly improved. 12 While TiO 2 nanoparticles can be obtained by using various techniques, hydrothermal method for the preparation of TiO 2 nanoparticle has some intrinsic advantages over other methods in producing TiO 2 nanoparticle of high degree of crystallinity, desired sizes and shapes with homogeneity in composition. 13 It favors a decrease in agglomeration among particles, narrow particle size distribution, phase homogeneity, and controlled particle morphology.…”

Industrial synthesis and characterization of nanophotocatalysts materials: titania

“…In general, the nanophotocatalysts can be integrated on the surface to treat the glass of windows, walls of structures, or flat surfaces [74][75][76][77] or in the bulk of the structure (concrete) (Figure 7) [78][79][80]. Recently, TiO 2 has been used for prepared self-decontamination textiles [81][82][83][84] and showed a high performance to UV shielding and antibacterial activity.…”