Personal protective equipment (PPE), like masks and protective suits, is a key factor to inhibit the spread of virus, preventing healthy people especially frontline healthcare doctors and nurses from virus infection . Due to poor self-virucidal capabilities of traditional PPEs, viruses accumulate on the fibers of PPEs over long-term usage, leading to wearers' infection. In addition, conventional PPEs are usually disposable with limited service life . Further, the improper disposal of PPEs is likely to cause cross-contamination . Therefore, there is an emergency to develop self-