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Superhydrophobic self-similar nonwoven-titanate nanostructured materials.

Authors :
Sharma S
Rawal A
Tóth IY
Vásárhelyi L
Kozma G
Kukovecz Á
Jee S
Ayaydin F
Source :
Journal of colloid and interface science [J Colloid Interface Sci] 2021 Sep 15; Vol. 598, pp. 93-103. Date of Electronic Publication: 2021 Mar 15.
Publication Year :
2021

Abstract

Hypothesis: Self-similarity is a scale-invariant irregularity that can assist in designing a robust superhydrophobic material. A combinatorial design strategy involving self-similarity and dual-length scale can be employed to create a new library of a doubly re-entrant, disordered, and porous network of superhydrophobic materials. Asymmetric wettability can be engineered in nonwoven materials by rendering them with superhydrophobic characteristics on one side.<br />Experiments: A facile, scalable, and inexpensive spray-coating technique was used to decorate the weakly hydrophobicstearate-treatedtitanate nanowires (TiONWs)over the self-similar nonwoven material. Laser scanning confocal microscopy was employed to image the impalement dynamics in three dimensions. With the aid of X-ray microcomputed tomography analysis, the three-dimensional (3D) nonwoven structural parameters were obtained and analyzed. The underwater superhydrophobic behavior of the prepared samples was investigated.<br />Findings: A classic 'lotus effect' has been successfully endowed in self-similar nonwoven-titanate nanostructured materials (SS-Ti-NMs) from a nonwoven material that housed the air pockets in bulk and water repellent TiONWs on the surface. The finer fiber-based SS-Ti-NMs exhibited lower roll-off angles and a thinner layer of water on its surface. An asymmetric wettability and the unusual display of underwater superhydrophobic behavior of SS-Ti-NMs have been uncovered.<br />Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2021 Elsevier Inc. All rights reserved.)

Details

Language :
English
ISSN :
1095-7103
Volume :
598
Database :
MEDLINE
Journal :
Journal of colloid and interface science
Publication Type :
Academic Journal
Accession number :
33894618
Full Text :
https://doi.org/10.1016/j.jcis.2021.03.045