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Separation of Oil-Water Via Porous PMMA/SiO₂ Nanoparticles Superhydrophobic Surface
Colloids and Surfaces A: Physicochemical and Engineering Aspects
  • Sangeetha Sriram
  • Aditya Kumar, Missouri University of Science and Technology
Abstract

A porous superhydrophobic coating on filter paper is developed by employing solution-casting technique using polymethyl methacrylate-co-ethyl acrylate polymer (PMMA) and silica nanoparticles (SiO2). The wettability, surface topography and chemical composition of coating were examined. The coated filter paper shows a static water contact angle of 170° ± 2° and sliding angle of 8° ± 1°. Additionally, thermal stability by annealing at different temperature ranging 40-280 °C, UV stability, chemical stability by immersing in different solutions of pH range of 2-13, and mechanical durability by performing adhesive tape peeling, sand abrasion, and washing tests of coatings were evaluated. Petroleum ether-water mixture and emulsion were successfully separated via a simple filtering method by using coated filter paper with high separation efficiency. Furthermore, coating also exhibits the excellent self-cleaning property. This coating can apply for any size and shape of the filter papers and has tremendous industrial applications.

Department(s)
Materials Science and Engineering
Keywords and Phrases
  • Coatings,
  • Composite,
  • Oil-water separation,
  • Polymer,
  • Self-cleaning,
  • Superhydrophobic
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2019 Elsevier B.V., All rights reserved.
Publication Date
2-1-2019
Citation Information
Sangeetha Sriram and Aditya Kumar. "Separation of Oil-Water Via Porous PMMA/SiO₂ Nanoparticles Superhydrophobic Surface" Colloids and Surfaces A: Physicochemical and Engineering Aspects Vol. 563 (2019) p. 271 - 279 ISSN: 0927-7757
Available at: http://works.bepress.com/aditya-kumar/51/