Green Approaches, Potentials, and Applications of Zinc Oxide Nanoparticles in Surface Coatings and Films

Figure 17

(a) ZnO NPs coating on cotton to form an antiviral filter for face masks, (b) SEM images of ZnO nanoflowers coated on cotton fabric and (c) water droplets fully absorbed on the untreated cotton surface and (d) water droplet with high contact angle on ZnO NP-coated cotton surface indicating good hydrophobicity. Reprinted with permission from Refs. [21, 22]. Copyright (2021) American chemical society.