Electrochemical Fabrication of Multifunctional Textiles Using Graphene-Related Materials

Multifunctional textiles have recently gained significant attention in various areas such as personal health monitoring, antimicrobial materials, and thermotherapy. These fabrics can be prepared through the incorporation of advanced materials into textile substrates. Graphene-related materials stand out as ideal candidates for this purpose, due to their unique attributes including large surface area, high thermal and electrical conductivity, etc. Existing methods of applying graphene onto textiles often involve harsh chemicals, elevated temperatures, and complex processes. This study presents an innovative electrochemical process for fabricating multifunctional textiles by integrating reduced graphene oxide into the textile matrix. The aim of this dissertation is to explore the diverse range of functionalities and capabilities exhibited by these modified fabrics. The in-situ electrochemical technique developed here is a straightforward process that doesn't require the use of toxic chemicals. It operates at room temperature and ambient conditions and eliminates transfer steps. The fabrics coated with reduced graphene oxide exhibited electrical conductivity, enabling the electrodeposition of metal nanoparticles such as silver. The combination of silver and reduced graphene oxide on the fabrics demonstrated high antibacterial activity and excellent hydrophobicity. The graphene matrix enhanced the adhesion and stability of the silver nanoparticles, while also reducing the rate of oxidative dissolution and release of silver ions. This combined impact plays a vital role in improving the overall durability of the nanoparticles and antibacterial activity. Furthermore, it was demonstrated that the incorporation of reduced graphene oxide onto the fabric enhances its electrothermal performance, leading to excellent Joule heating. The presence of the Joule-heating effect in the modified fabrics makes them a promising material for the development of personal thermal devices. Additionally, the antibacterial potential of reduced graphene oxide-coated fabrics was investigated by applying an electrical stimulus. The study confirmed the exceptional capability of these modified fabrics to eliminate both gram-positive and gram-negative bacteria through short exposures to electric fields.