Using microwave irradiation to catalyze the in-situ manufacturing of silver nanoparticles on cotton fabric for antibacte
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ORIGINAL RESEARCH
Using microwave irradiation to catalyze the in-situ manufacturing of silver nanoparticles on cotton fabric for antibacterial and UV-protective application Hossein Barani
. Boris Mahltig
Received: 23 April 2020 / Accepted: 12 August 2020 Ó Springer Nature B.V. 2020
Abstract Antibacterial and UV-protective cotton fabrics were produced with an in-situ synthesis of silver nanoparticles using trisodium citrate as reductive agent and microwave irradiation for starting the synthesis reaction. The creation of silver nanoparticles with different morphologies such as quasi-spherical and cubic nanoparticles was confirmed by the SEM images. The EDS pattern of the loaded sample confirmed the uniform silver loading on the surface of cotton fibers as well as their crystal structure was approved by the X-ray diffraction pattern. Increasing reaction temperature (80, 100, 120, and 140 °C) caused a significant decrease up to 75% in the average diameter of nanoparticles and narrowing the size distribution. Also, increasing amounts of trisodium citrate (0, 100, 200, and 400 ppm) in the synthesizing
solution resulted in a decrease up to of 59% in the average diameter and prevented agglomeration of nanoparticles. The FTIR spectra confirmed that the highest absorbed water in the loaded cotton samples was achieved in the highest concentration of trisodium citrate. The antibacterial properties of loaded cotton samples significantly depended on the reaction temperature as well as trisodium citrate concentration. The loaded cotton fabrics showed active antibacterial properties with inhibition zones of 16–18.5 mm against the Gram-positive Staphylococcus aureus and the Gram-negative Escherichia coli. Moreover, the prepared AgNP cotton fabrics demonstrated excellent UV-rays blocking properties with a high rate of ultraviolet protection factor value.
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10570-020-03400-6) contains supplementary material, which is available to authorized users. H. Barani (&) Department of Carpet, University of Birjand, 17 Shahrivar Street, Birjand, Iran e-mail: [email protected] B. Mahltig Faculty of Textile and Clothing Technology, Niederrhein University of Applied Sciences, Mo¨nchengladbach, Germany
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Cellulose
Graphic abstract
Keywords Cotton fabric Silver nanoparticle Reaction temperature Trisodium citrate Antibacterial UV-protection
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Introduction There is an increasing demand for novel antibacterial materials in many application areas, due to threatening human health with the growth of drug-resistant pathogens. Cotton fabric is popular and widely used in daily life according to its sweat absorbing properties, affinity to the skin and softness. However, cotton
Cellulose
could be easily impaired by bacterial attack and results in an enhanced discoloration, decomposition, and mechanical strength loss with time (Barani 2014; ElNaggar et al. 2016; Li et al. 2019; Mezni et al.
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