The surface morphologies of pristine and AgNWs-loaded fabrics were investigated by electron microscopy. The corresponding SEM images are shown in Fig. 4. Low-magnification images (at 500×) show that AgNWs-loaded fabric looked similar to pristine one. The high-magnification images reveal a smooth longitudinal fibril structure of pristine cotton fibers, whereas treated cotton fibers were coated with AgNWs. It is obvious that AgNWs coated on the cotton fabric were random and have good connection to each other.