Eco-friendly Synthesis of Silver Nanoparticles for Multifunctional Protective Cotton and Flax Fabrics

ABSTRACT

The antibacterial properties of nano-silver are well-known methods to combat microbes in many respects, and the coating process emphasized this phenomenon more to textile materials. With the advancement in promoting eco-friendly methods to synthesize silver, sweet Orange Peel extract was used to reduce Ag⁺ to Ag⁰. UV, XRD, SEM, EDX, and DLS were used to characterize and diagnose the formation of silver nanoparticles. The nanocrystallite size was measured using the Scherrer equation and the SEM images showed well-dispersed nanoparticles at pH levels 9 and 10. The treated cotton and flax fabrics were characterized by UV-vis, FTIR, SEM, and EDX to find the proper level of impregnation of silver nanoparticles onto the fabrics. The colorimetric results showed good distribution of coloronto both fabrics. They exhibited an increase in UV protection factor (UPF value raised from 5.47% to 12.95% for cotton and 3.36% to 4.11% for flax). The antibacterial efficacy was tested against Escherichia coli and the treated fabrics showed satisfactory resistance even after 10 consecutive washing cycles. The zone of inhibition was reported 15 mm and 14 mm (after 10 cycles) for cotton fabric and 14 mm and 10 mm (after 10 cycles) for flax fabric, respectively.

摘要

纳米银的抗菌性能是在许多方面对抗微生物的一种众所周知的方法, 涂层过程更强调了纺织材料的这一现象. 随着环保合成银方法的发展, 甜橙皮提取物被用于将金属银还原为Ag⁺ 为 Ag⁰, UV、XRD、SEM、EDX、DLS被用于表征和诊断银纳米粒子的形成. 使用Scherrer方程测量晶粒尺寸, SEM图像显示在pH 9和10时纳米颗粒分散良好. 通过紫外-可见光谱、傅立叶变换红外光谱、扫描电镜和能谱仪对处理后的棉和亚麻织物进行了表征, 以确定银纳米粒子在织物上的适当浸渍程度. 比色结果表明, 两种织物上的颜色和纳米粒子分布良好. 它们表现出紫外线保护因子的增加 (UPF值从棉花的5.47%增加到12.95%, 从亚麻的3.36%增加到4.11%). 对革兰氏阴性杆菌大肠杆菌的抗菌效果进行了测试, 即使在10次洗涤循环后, 处理过的织物仍表现出耐药性. 据报道, 棉织物的抑制区分别为15mm和14mm (10个周期后), 亚麻织物的抑制区分别为14mm和10mm (10个周期后).

Abbreviations: Silver nanoparticles (AgNPs), Citric Acid (CA), Orange Peel (Or-P), Citric Acid-Silver treated Cotton (Ag-CA-Co), Citric Acid-Silver treated Flax (Ag-CA-Fx), Gram per Square Meter (GSM), Ends per Inch (EPI), Picks Per Inch (PPI)

KEYWORDS:

• Eco-friendly
• silver nanoparticles
• cotton
• flax
• Anti-bacterial
• UV-protective

关键词:

• 环保
• 银纳米颗粒
• 棉
• 亚麻, 抗菌
• 紫外线防护

Research Highlights

• Simple, cost-effective, and environment-friendly process.

• Silver nanoparticles preparation using sweet Orange Peel extract, optimum pH 9.

• The stability of AgNps was measured after 90 days.

• Anti-bacterial efficacy against Escherichia coli, treated cotton and flax fabric.

• Zone of inhibition after 10 cycles of washing, %UPF resulted in multifunctionalities.

Acknowledgments

We are grateful to the contribution of Yarn Manufacturing Lab of Bangladesh University of Textiles, Dhaka-1208 and NZ Textiles, Rupgonj, Narayangonj, Bangladesh for providing cotton and flax fabrics. Authors appreciate the efforts of Institute of Fuel Research and Development and Pilot Plant and Process Development Centre, Bangladesh Council of Scientific & Industrial Research , Dhaka-1205. Waffen Research Laboratory, Dhaka-1208 and Wazed Miah Science Research Centre , Jahangirnagar University, Dhaka-1347 have contributed a lot for conducting the tests.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/15440478.2022.2104775.