Ti₃C₂T_x MXene Decorated Textiles with Low Thermal Emissivity

Abstract

Abstract Generally, commercial textiles show high mid-infrared emissivity and the thermal radiation accounts around 50% of the heat loss. However, conventional clothes usually increase the thickness to reduce the heat conduction without considering lowering the mid-IR emissivity. Thus textiles with reducing infrared emissivity for passive radiative heating offer an energy-free way to keep human body warm. Herein, we reduced mid-IR emissivity of the textiles by covering Ti 3 C 2 T x MXene sheet on the cotton fabric through dip coating. MXenes as a new family of two-dimensional (2D) materials shows strong absorption in visible and near-IR regions and strong reflection in mid-IR region. Through simple and scalable method of dip coating, we fabricate four samples with different MXene content from 0.05 mg/cm 2 to 0.20 mg/cm 2 with 0.277∼0.431 mid-IR emissivity. This material and preparation method can be used for personal thermal management on traditional clothing.