In Situ Synthesis and Characterization of Nano ZnO on Wool: Influence of Nano Photo Reactor on Wool Properties

Abstract

This study has been carried out to synthesize nano ZnO on wool fabric and also to investigate influences of nano photo reactors on wool fabric characteristics. Zinc acetate has been used as a precursor and the synthesis process has been done in water and water/ethanol media. The treated wool fabrics were heated at 80°C for 10 h to dehydrate Zn(OH)2 obtaining ZnO. The fabric samples were then subjected to daylight for 7 days to examine the influence of nano ZnO photo reactor on the fabric properties. SEM images revealed the embedding of ZnO nanoparticles on the fabrics and X-ray diffraction verified the nanoparticles composition. The Yellowness Index (YI) of the fabrics was measured with Color Eye XTH that has been reduced with increasing pH, Zn(CH3COO)2 concentration, ethanol and heating. The lower water contact angle and time of water absorption confirmed higher hydrophilic properties of the treated fabrics. Interestingly, a higher tensile strength obtained on the wool fabrics proved the interaction of ZnO with protein chains of wool, which was verified through lower alkali solubility of treated fabric with nano ZnO and confirmed more benefits of the in situ synthesis process.

Aminolysis of polyethylene terephthalate surface along with in situ synthesis and stabilizing ZnO nanoparticles using triethanolamine optimized with response surface methodology

“…The selfcleaning activity of ZnO treated textiles has been widely reported in literature and related to the superoxide, hydroperoxy (HO 2 • ) and hydroxyl (OH • ) radicals formed on the surface of the fabric due to electron-hole pair formation under light irradiation [24,25]. Based on the results of the statistical approach, a linear model was suggested for the relation between self-cleaning and the variables (Eq.…”

“…They have been used as promising gas sensing materials and their photocatalytic activity for the degradation of textile dyes has been reported [19][20][21][22]. During the last decade, textiles with photocatalytic properties, UV absorption, self-cleaning, and antimicrobial activities have been prepared through utilization of ZnO nanoparticles [23][24][25]. Two main approaches have been proposed to immobilize zinc oxide nanoparticles on the surface of textile materials including pre-synthesis of ZnO nanoparticles followed by the second stage of nanoparticle deposition on textile surface known as ex-situ method, and the in-situ synthesis of ZnO nanoparticles on the surface, carrying out in the presence of the textile substrate in one single step procedure [23][24][25][26].…”

“…During the last decade, textiles with photocatalytic properties, UV absorption, self-cleaning, and antimicrobial activities have been prepared through utilization of ZnO nanoparticles [23][24][25]. Two main approaches have been proposed to immobilize zinc oxide nanoparticles on the surface of textile materials including pre-synthesis of ZnO nanoparticles followed by the second stage of nanoparticle deposition on textile surface known as ex-situ method, and the in-situ synthesis of ZnO nanoparticles on the surface, carrying out in the presence of the textile substrate in one single step procedure [23][24][25][26]. One of the crucial aspects of textile nanofinishing is the stability of nanoparticles on textile surface, resulting in durable multifunctional properties [23,24,27,28].…”

In-situ sonosynthesis of nano N-doped ZnO on wool producing fabric with photo and bio activities, cell viability and enhanced mechanical properties

“…The in-situ synthesis of nano N-doped zinc oxide particles push the particles into the wool structure increasing the fabric tensile strength to 113 and 64 N for Zn 10 and ZnO/Heated samples (Table 3). This is similar to the previously confirmation of higher wool fabric strength through chemical sonotreatment with TTIP and TTIB in acidic media [19].…”

Ultrasound irradiation based in-situ synthesis of star-like Tragacanth gum/zinc oxide nanoparticles on cotton fabric

“…Several researches have been reported synthesis and application of zinc oxide nanoparticles on the various textile substrates [6][7][8][9][10][11], however in-situ synthesis of the nanoparticles on the textiles is a novel approach with low costs, affordable and short time consuming [12][13][14][15][16]. Insitu synthesis of zinc oxide nanoparticles on wool fabric using zinc acetate as a precursor in water and water/ethanol media was reported by Montazer ZnO nanoparticles on the cotton fabric acted as stabilizer and alkaline for converting zinc ions to zinc hydroxide.…”