Solvent-free preparation of superhydrophobic and photocatalytic monoliths for water treatment applications

ÇELİK N., Karagoz S., ŞAKİR M., YILMAZ E., Genc A., Slater T. J., ...Daha Fazla

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, cilt.721, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 721
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.colsurfa.2025.137227
  • Dergi Adı: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, EMBASE, INSPEC
  • Anahtar Kelimeler: Superhydrophobic surfaces, Polydimethylsiloxane, Photocatalyst, Titanium dioxide, Mechanochemistry
  • Erciyes Üniversitesi Adresli: Evet

Özet

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 selfcleaning surfaces. This study reports solvent-free mechanochemical grafting of polydimethylsiloxane to photo-catalytic 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.