Celik, Nusret, Karagoz, Sultan, Sakir, Menekse, Yilmaz, Erkan, Genc, Aziz, Slater, Thomas J.A.  ORCID: https://orcid.org/0000-0003-0372-1551 and Onses, Mustafa Serdar
2025.
Solvent-free preparation of superhydrophobic and photocatalytic monoliths for water treatment applications.
Colloids and Surfaces A: Physicochemical and Engineering Aspects
721
, 137227.
10.1016/j.colsurfa.2025.137227
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Abstract
Sustainable and practical preparation of nanostructured materials with superhydrophobicity and photocatalytic activity remains a persistent challenge for a diverse range of applications including water treatment and self-cleaning surfaces. This study reports solvent-free mechanochemical grafting of polydimethylsiloxane to photocatalytic TiO2 nanoparticles with a diameter of 21 nm and generation of a monolithic material with demonstrated use in adsorption and degradation of organic pollutants. The monolith exhibited bulk superhydrophobicity with a water contact angle of 172⁰ and sliding angle of 1⁰. At the same time, the monolith effectively degraded organic pollutants such as methylene blue, under UV light with 92 % efficiency in 7 h. Furthermore, the superhydrophobic monolith demonstrated effective sorption of hexane, toluene, sunflower oil and pump oil from water with efficiencies approaching 90 %. These findings demonstrate the promise of solvent-free mechanochemical processes in developing nanostructured materials for water treatment applications.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Chemistry Research Institutes & Centres > Cardiff Catalysis Institute (CCI) |
| Publisher: | Elsevier |
| ISSN: | 0927-7757 |
| Date of First Compliant Deposit: | 29 May 2025 |
| Date of Acceptance: | 14 May 2025 |
| Last Modified: | 14 May 2026 01:45 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/178583 |
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