Abstract
There is a growing interest for producing multifunctional cellulose fabrics using green and sustainable technology. In this study, we explored an eco-friendly procedure for dyeing cotton fabrics with Malva sylvestris (MS) as a natural colorant and rendering antibacterial cotton fabric by the silver nanoparticles. MS colorants were extracted from dried petals in water using the ultrasound technique, cotton fabrics were dyed with the extracted MS colorant at 100°C for 90 min. The colorimetric data and colorfastness properties were investigated in the absence and presence of tannic acid (TA) as a bio-mordant. Results indicated that MS dye had a high potential for reducing the silver nitrate, so that the silver particle size distribution on cotton fabric was obtained 50–80 nm, and TA had a positive effect on the MS extract and reduced Ag on the cotton. Furthermore, the reduction of bacterial growth of the dyed cotton considerably (up to 99%) improved by AgNPs. The wash-, and light-fastness properties of samples dyed with MS were enhanced from moderate to good-very good by mordanting.
Highlights
The preparation of silver nanoparticles (AgNPs) with natural reducing agents has attracted the attention of researchers, due to the possibility to shorten the synthesis procedure (Veeraputhiran, 2013; Kelkawi et al, 2016)
It has been reported that several plants have potential to reduce silver nitrate in nanoparticle dimensions, and phyto-synthesized AgNPs have been currently offered as operative method with promising results to replace synthetic chemical pesticides with unsafe effects to non-target species (Rout et al, 2012; Singh et al, 2012)
Phyto-synthesis of AgNPs on the cotton fabrics with acceptable antibacterial and antioxidant activities was produced by Malva sylvestris (MS) flower
Summary
The preparation of silver nanoparticles (AgNPs) with natural reducing agents has attracted the attention of researchers, due to the possibility to shorten the synthesis procedure (Veeraputhiran, 2013; Kelkawi et al, 2016). The green reducing agents such as natural colorants, ascorbic acid and glucose were suggested and used for the synthesis of AgNPs (Antony et al, 2011). The antioxidant and antibacterial cotton fabric was produced through the phyto-synthesize of AgNPs using extracted MS colorants as an economical and ecologically satisfactory green process. This novel affordable method can be developed by utilizing natural resources to produce antibacterial and antioxidant cotton fabrics. Phyto-Synthesized AgNPs With Malva sylvestris investigate the colorimetric data, colorfastness, antioxidant and antibacterial properties of colored samples
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