Graphene oxide nanostructures modified multifunctional cotton fabrics

Abstract

Surface modification of cotton fabrics using graphene oxide (GO) nanostructures was reported. Scanning electron microscopic (SEM) investigations revealed that the GO nanostructure was coated onto the cotton fabric. The molecular level interaction between the graphene oxide and the cotton fabric is studied in detail using the Fourier transform infra-red (FTIR) spectra. Thermogravimetric analysis (TGA) showed that GO loaded cotton fabrics have enhanced thermal stability compared to the bare cotton fabrics. The photocatalytic activity of the GO-coated cotton fabrics was investigated by measuring the photoreduction of resazurin (RZ) into resorufin (RF) under UV light irradiation. The antibacterial activity was evaluated against both Gram-negative and Gram-positive bacteria and the results indicated that the GO-coated cotton fabrics are more toxic towards the Gram-positive ones. Our results provide a way to develop graphene oxide-based devices for the biomedical applications for improving health care.

Improvement of graphene oxide characteristics depending on base washing

“…In Fig. 1 (curve 2), the peak at 1054 cm -1 referred to aliphatic stretching of (C-O), the peak at 1161 cm -1 referred to stretching ether system (C-O-C), the peak at 1601 cm -1 referred to stretching conjugation system (C=C-C), the peak at 1725 cm -1 referred to carbonyl group (C=O), the peak at 2918 cm -1 referred to bending and stretching of methylene group (-CH 2 -) and broad band at 3340 cm -1 are attributed to vibration of a hydroxyl group (O-H) [2,24]. The FTIR observed that the oxidation process was successfully occurred, a new groups as hydroxyl, carboxyl and epoxy have been introduced into the graphene layers.…”

Electrochemical characterization of reduced graphene oxide-coated polyester fabrics

“…Once the fabric is coated with GO, it is then reduced to RGO using reducing agents such as sodium hydrosulfite [16], hydrazine [17], etc. GO coated fabrics have also generated interest due to the photo-catalytic activity of GO and also to its antibacterial activity [18]. Directly coated graphene fabrics have also been obtained in other works referenced in the bibliography [15].…”

Graphene-based fabrics and their applications: a review

“…Krishnamoorthy et al [55] coated cotton fabrics with GO to obtain photocatalytic and antibacterial fabrics. Photocatalytic activity was measured by measuring the photoreduction of resazurin (blue) to resorufin (pink) under UV irradiation.…”