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- Title
Fabrication of Super-hydrophobic Filter Paper via Mixed Wax Phase Separation for Efficient Oil/Water Separation.
- Authors
Yating Wang; Xiaochun Chen; Yaqi Liang; Chenghua Yu
- Abstract
Despite previous efforts, the fabrication of superhydrophobic substrate via an environment friendly and easy approach remains a great challenge. In this study, a low cost, simple, and green procedure was developed to prepare a superhydrophobic paper surface that is acceptable for the papermaking industry. First, a wax mixture (beeswax & carnauba wax) was emulsified and coated on the filter paper surface. Then, the coated paper was annealed at different temperatures. The further heat-treatmentrendered wax-coated paper hydrophobic or superhydrophobic because submicrometer or micrometer wax structures were present on the paper surface. The water contact angle of the annealed filter paper sample reached 151.5° at 60 °C, and the sliding angle was under 10°. Further, the relationship between surface composition and the hydrophobic properties of the coated paper samples was discussed. The obtained paper samples showed great potential in water/oil separation, as they had an efficiency over 99%. This work proposed a new simple and mild approach to fabricate superhydrophobic filter papers and explored the hydrophobicity and water/oil separation properties.
- Subjects
FILTER paper; PHASE separation; HYDROPHOBIC surfaces; CONTACT angle; SUPERHYDROPHOBIC surfaces
- Publication
BioResources, 2021, Vol 16, Issue 3, p5794
- ISSN
1930-2126
- Publication type
Article
- DOI
10.15376/biores.16.3.5794-5805