The textile fabric possessing superhydrophobic surface can exhibit excellent self-cleaning performance. In this work

PET nonwoven fabric was used as substrate and a route to fabricating superhydrophobic coating possessing hierarchical micro/nano structures with a sol-gel method on the pretreated PET fabric surface was explored. The microstructure and wettability of the modified PET fabric surfaces were characterized with SEM and water contact angle measurement. Furthermore

the antibacterial activities of the modified PET fabric against E. coli and S. aureus were evaluated and analyzed via the bacterial transfer method and the inhibition zone test

respectively. The results indicated that the hierarchical micro/nano structures could be successfully constructed on the PET fabric surface by the in-situ formation of SiO2 nanoparticles on the alkali-treated PET fabric surface

which was conducted via the modified Stöber sol-gel process

and the subsequent surface modification with n-dodecyltrimethoxysilane (DTMS) bearing long hydrophobic chain followed by appropriate heat treatment. The as-prepared PET fabric surface could exhibit superhydrophobicity with a water contact angle of 163°. Besides

the prepared superhydrophobic PET fabric could suppress bacterial growth and reproduction on its surface

thus showing obvious antibacterial activity.