▎ 摘　　要

A strategy was proposed to modify cotton fabrics (CFs) by dipping-padding procedure using graphene oxide (GO) and aminofullerene (C-60), and then the flexible reduced GO/fullerene fabric-based ion sensors (RGO/C-60@CF) were prepared by chemical reduction method. Large amounts of zero-dimension of fullerene spheres were embedded in RGO sheets, and could exhibit different dipole-dipole interactions on various cations or anions with different sizes by virtue of their electron deficiency characteristics, which made RGO/C-60@CF show different resistivity to different ions, thus endowing the modified fabrics with responsiveness to different ions. When the relative content of fullerene to graphene was 5%, the resistivity of the modified fabric (RGO/CF60@CF-5) was significantly different to different ions, i.e., the larger the ion radius, the greater the resistivity of the modified fabrics, and even if the ion concentration was only 1 mmol/L, RGO/C-60@CF-5 exhibited good sensitivity. In addition, the fabric-based ion sensors also showed different sensing properties for different type of sweat, and their sensitivity only changed slightly after 1000 times of 180 degrees bending. This work provides a basis for the design of the next generation of intelligent ion sensors with high sensitivity and flexibility.