Wool functionalization through AgNPs: coloration, antibacterial and wastewater treatment

Abstract

Herein, an approach was carried out toward in situ synthesis of chitosan-mediated silver (Ag) nanoparticles (AgNPs) on merino wool fabrics (MWFs) and its utilization as colored textile, antibacterial material and removable substrate after toxic dye reduction. The investigation on the as-produced products (AgNPs@MWFs) indicates that AgNPs were successfully assembled on the MWF surface through efficient interaction between the wool and chitosan terminals with nanoparticles. The AgNPs@MWFs revealed three primary colors (red, yellow and blue) with a brilliant shade due to the localized surface plasmon resonance properties of metal nanoparticles. The colorfastness and color strength (K/S) values were found to be as significant as those of traditional dyes. The tensile properties of the MWFs, such as strength and elongation at break, were measured before and after in situ synthesis of AgNPs and were found improved compared with those of the control samples. The antibacterial performance was also noticed to be excellent with ∼99% bacterial reduction after five consecutive standard washes. Afterward, AgNPs@MWFs coupled with sodium borohydride (NaBH4) were used for azo-containing wastewater treatment. Higher than 90% azo-dye degradation by 30 min was found, which was six times faster than that of the control sample.

Mechanical and Durability Performance of Coconut Fiber Reinforced Concrete: A State-of-the-Art Review

“…Biocomposites are becoming more popular as appealing products in a variety of industries, including automotive, aviation, packaging, construction, architectural, and biomedical [ 11 ]. Furthermore, natural fibers can be found all over the world, which are cheaper than artificial fibers, have more stiffness, and can be recycled [ 12 ]. Coir is a popular natural fiber derived from the husks of mature coconut fruits and is used to make high-strength and long-lasting products [ 13 ].…”

A state-of-the-art review on coir fiber-reinforced biocomposites

“…Natural bers have a long history of usage for various products ranging from housing to construction and clothing. [19][20][21][22] Natural ber-reinforced composites are used in diverse applications such as automobiles, aerospace, construction and building sector, consumer products, packaging, and biomedicine. However, nowadays, synthetic ber-reinforced products are still being used for producing composite materials because of the lack of adequate technology, research, and scientic innovations to utilize renewable natural bers as a prominent replacement for biocomposite production.…”

Enhancing mechanical and antibacterial performances of organic cotton materials with greenly synthesized colored silver nanoparticles

“…The control and functionalized OCFs were characterized by scanning electron microscope (SEM), energy-dispersive X-ray (EDX) linear scanning, elemental mapping, Fourier transform infrared spectrometer (FTIR), X-ray fluorescence (XRF) analysis and mechanical test, according to our previous report (Hasan et al, 2020b). Color measurements and analysis in terms of colorfastness (to wash, light and rub) and color strength (K/S) were all measured according to available standard (Mahmud et al, 2017).…”

“…Likewise, a lot of NPs were synthesized, such as-gold (Phan et al, 2019a), silver (Kalaivani et al, 2018), palladium (Phan et al, 2019b) NPs, etc. Even chitosan reduced-stabilized AgNPs were also recently synthesized for the functionalization of textiles materials such as wool (Hasan et al, 2020b), polyester (Hasan et al, 2019), viscose (Raza et al, 2019), aramid (Hasan et al, 2020a), linen, nylon (Hasan et al, 2020b) and so on. Moreover, compared to other natural fibers cotton is the most important and widely consumed fiber material (Pervez et al, 2018;Hasan et al, 2021a;Mahmud et al, 2021).…”

“…, 2019b) NPs, etc. Even chitosan reduced-stabilized AgNPs were also recently synthesized for the functionalization of textiles materials such as wool (Hasan et al. , 2020b), polyester (Hasan et al.…”