Silver Nanoparticle-Infused Cotton Fiber: Durability and Aqueous Release of Silver in Laundry Water

Nam, Sunghyun; Hillyer, Matthew B.; Condon, Brian; Lum, June S.; Richards, Molly N.; Zhang, Qingbo

doi:10.1021/acs.jafc.9b07531

Cited by 20 publications

(14 citation statements)

References 42 publications

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“…The studies by El-Ra e et al showed that the addition of adhesives can improve washing durability, the AgNPs retention rate reached 65.8% after 20 washing cycles (El-Ra e et al 2014b). Although Nam et al(Nam et al 2020) and Zhang et al(Zhang et al 2013) improved the process to improve the durability of AgNPs on cotton fabrics, silver retention rate reached 67.0% and 81.5% after 20 and 30 washes, respectively, but the retention rate was still lower than that of our samples. The AgNPs loaded on our samples were wrapped inside the ber, resulting in its strong washing resistance.…”

Section: Slow-release and Wash-resistance Of Agnps On Fabricscontrasting

confidence: 58%

Effect of AgNPs distribution on the cotton fiber to the durability of antibacterial cotton fabrics

Zhang

et al. 2021

Preprint

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Silver nanoparticles (AgNPs) loaded on the cotton fiber can endow the fiber with good antibacterial activity, but the AgNPs on the surface of cotton fiber will leach out with the increase of washing times, which will not only greatly reduce the antibacterial properties of cotton fiber, but also cause pollution to the environment. In this paper, carboxyl groups were introduced into cotton fiber by three methods, namely selective oxidation, butane tetracarboxylic acid (BTCA) grafting and polyacrylic acid (PAA) adsorption. The silver ions (Ag+) were adsorbed on the cotton fibers through electrostatic attraction, and after reduction, the AgNPs were loaded onto the cotton fibers, and the AgNPs distribution on the fiber and its effect to the washing resistance of AgNPs were studied. The results showed that the selective oxidation and the BTCA grafting can introduce carboxylic groups into the interior of cotton fibers while the PAA adsorption only imports carboxyl groups on the surface of the fiber. As a consequence, AgNPs were formed inside of the cotton fiber when the selective oxidation and the BTCA grafting were employed, while AgNPs can only be loaded on the surface of the fiber by the PAA adsorption method. AgNPs inside of the fiber have high energetic adherence, resulting in silver-cotton fabric nanocomposites with strong slow-release property and long-term antibacterial ability. The fabric nanocomposites prepared by selective oxidation and BTCA grafting exhibited high AgNPs retention rate and excellent antibacterial activity even after 80 washing cycles.

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Section: Slow-release and Wash-resistance Of Agnps On Fabricscontrasting

confidence: 58%

Effect of AgNPs distribution on the cotton fiber to the durability of antibacterial cotton fabrics

Zhang

et al. 2021

Preprint

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“…In addition, AgNPs can penetrate into the multi-scale micropore of cotton ber and be stabilized inside the ber. Nam et al treated cotton bers with an alkaline solution to generate nanosized micro brillar channels, which were then introduced with [Ag(NH 3 ) 2 ] + ions and reduced to AgNPs.The AgNPs was successfully diffused into the interior of the cotton ber, and the washing resistance of the ber was greatly improved (Nam et al 2020). Montes-Hernandez et al put cotton fabrics in silver nitrate solution, and the silver ions were reduced to AgNPs, FE-SEM results of ber cross section show AgNPs diffused the interior of ber (Montes-Hernandez et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of AgNP distribution on the cotton fiber on the durability of antibacterial cotton fabrics

Zhang

et al. 2021

Cellulose

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Silver nanoparticles (AgNPs) loaded on the cotton ber can endow the ber with good antibacterial activity, but the AgNPs on the surface of cotton ber will leach out with the increase of washing times, which will not only greatly reduce the antibacterial properties of cotton ber, but also cause pollution to the environment. In this paper, carboxyl groups were introduced into cotton ber by three methods, namely selective oxidation, butane tetracarboxylic acid (BTCA) grafting and polyacrylic acid (PAA) adsorption. The silver ions (Ag + ) were adsorbed on the cotton bers through electrostatic attraction, and after reduction, the AgNPs were loaded onto the cotton bers, and the AgNPs distribution on the ber and its effect to the washing resistance of AgNPs were studied. The results showed that the selective oxidation and the BTCA grafting can introduce carboxylic groups into the interior of cotton bers while the PAA adsorption only imports carboxyl groups on the surface of the ber. As a consequence, AgNPs were formed inside of the cotton ber when the selective oxidation and the BTCA grafting were employed, while AgNPs can only be loaded on the surface of the ber by the PAA adsorption method. AgNPs inside of the ber have high energetic adherence, resulting in silver-cotton fabric nanocomposites with strong slow-release property and long-term antibacterial ability. The fabric nanocomposites prepared by selective oxidation and BTCA grafting exhibited high AgNPs retention rate and excellent antibacterial activity even after 80 washing cycles.

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“…Additionally, previous studies have shown that the Ag NPs are well secured within the cotton fiber and are resistant to NP leaching even under aggressive agitation, losing less than 20% of their overall Ag content after 50 laundering cycles. Due to the mild reaction conditions (room temperature and mild mixing by magnetic stirring) it is expected that the catalyst maintains its high silver loading for the lifetime of the fiber [ 36 , 48 , 49 ], as confirmed by the lack of change in the UV/vis spectrum of the Ag NP–cotton catalyst after 10 cycles ( Figure 1 ).…”

Section: Resultsmentioning

confidence: 99%

Silver Nanoparticle-Intercalated Cotton Fiber for Catalytic Degradation of Aqueous Organic Dyes for Water Pollution Mitigation

et al. 2022

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Azo dyes are commonly used in textile color processing for their wide array of vibrant colors. However, in recent years these dyes have become of concern in wastewater management given their toxicity to humans and the environment. In the present work, researchers remediated water contaminated with azo dyes using silver nanoparticles (Ag NPs) intercalated within cotton fabric as a catalyst, for their enhanced durability and reusability, in a reductive degradation method. Three azo dyes—methyl orange (MO), Congo red (CR), and Chicago Sky Blue 6B (CSBB)—were investigated. The azo degradation was monitored by UV/vis spectroscopy, degradation capacity, and turnover frequency (TOF). The Ag NP–cotton catalyst exhibited excellent degradation capacity for the dyes, i.e., MO (96.4% in 30 min), CR (96.5% in 18.5 min), and CSBB (99.8% in 21 min), with TOFs of 0.046 min−1, 0.082 min−1, and 0.056 min−1, respectively, using a 400 mg loading of catalyst for 100 mL of 25 mg L−1 dye. To keep their high reusability while maintaining high catalytic efficiency of >95% degradation after 10 cycles, Ag NPs immobilized within cotton fabric have promising potential as eco-friendly bio-embedded catalysts.

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Silver Nanoparticle-Infused Cotton Fiber: Durability and Aqueous Release of Silver in Laundry Water

Cited by 20 publications

References 42 publications

Effect of AgNPs distribution on the cotton fiber to the durability of antibacterial cotton fabrics

Effect of AgNPs distribution on the cotton fiber to the durability of antibacterial cotton fabrics

Effect of AgNP distribution on the cotton fiber on the durability of antibacterial cotton fabrics

Silver Nanoparticle-Intercalated Cotton Fiber for Catalytic Degradation of Aqueous Organic Dyes for Water Pollution Mitigation

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