Antioxidative MXene@GA-Decorated Textile Assisted by Metal Ion for Efficient Electromagnetic Interference Shielding, Dual-Driven Heating, and Infrared Thermal Camouflage

Abstract

Two-dimensional transition metal carbide/nitride (MXene)-based textiles have been developed in many fields; however, the high sensitivity to oxidation and weak interfacial bonding hinder their applications. Herein, we present a strategy for the preparation of a highly antioxidative MXene@gallic acid (MXene@GA, MG) hybrid dispersion, and further covalently grafted it onto carboxylated cotton fabric through interaction with metal ions (Fe³⁺) for fabricating wearable multifunctional textiles. Due to the cross-linking effect of Fe³⁺ and the remarkable antioxidant activity of natural polyphenol GA, the MG coatings firmly adhere to the textile surfaces and can withstand conventional washing, exhibiting favorable service stability and potential application prospects. Moreover, the obtained MG-decorated textile has the inherent characteristics of good breathability, moisture permeability, flexibility, and biocompatibility of the original fabric, which are conducive to the wearability of smart devices. Furthermore, by utilizing the outstanding conductivity (~ 330 S/m) and photothermal convertibility of the MG coating, the functional textile achieves high electromagnetic interference (EMI) shielding efficiency (~ 35 dB), excellent dual-driven (Joule and solar) heating warmth retention, and infrared thermal camouflage. Due to the green and scalable preparation process, favorable durability, excellent comfort, and multifunctionality, the MG-decorated textiles are anticipated to be promising candidates for the next generation of smart wearable personal protective clothing.

Funding

Six Talent Peaks Project in Jiangsu Province(XCL-133); National Natural Science Foundation of China(22178145); Postgraduate Research & Practice Innovation Program of Jiangsu Province(KYCX22_2333)