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Superhydrophilic and Underwater Superoleophobic Poly(propylene) Nonwoven Coated with TiO2 by Atomic Layer Deposition

journal contribution
posted on 2025-01-22, 04:32 authored by Chen Li, Lipei RenLipei Ren, Xin Liu, Chunhua Zhang, Dongzhi Chen, Weilin Xu, Yong Qin
AbstractTo develop an effective and convenient solution for underwater repelling oil and cleaning up oily water, TiO2 nano‐coating is deposited on the surface of poly(propylene) nonwoven (PPN) by atomic layer deposition (ALD). There is no evident change in the morphologies comparing ALD‐modified PPN with PPN except for thickness. For oils of different densities, such as 1,2‐dichloroethane, methylene chloride, chloroform, carbon tetrachloride, n‐hexane, and petroleum ether, the underwater oil contact angle and underwater oil sliding angle of ALD‐modified PPN range from 152.25° to 156.19° and 5.63° to 8.80°, respectively, exhibiting superior superhydrophilicity and underwater superoleophobicity. Notably, ALD‐modified PPN shows a high chemical stability in different solutions, such as acid, alkali, salt, and polar solvent, which even can slightly improve the underwater superoleophobicity of TiO2 nano‐coating. The excellent underwater anti‐oil property, self‐cleaning property, robust chemical resistance, and easily scaled‐up preparation process of TiO2‐coated PPN suggest great potential for practical applications in the energy, environmental protection, marine anti‐fouling, and microflow control fields.

History

Journal

Advanced Materials Interfaces

Volume

8

Article number

2001485

Pagination

1-10

Location

London, Eng.

Open access

  • No

ISSN

2196-7350

eISSN

2196-7350

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Issue

1

Publisher

Wiley

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