Inorganic-Organic Thiol-ene Coated Mesh for Oil/Water Separation

Qiyi Chen, Al De Leon, Rigoberto C. Advincula

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

A highly efficient mesh for oil/water separation was fabricated by using a superhydrophobic and superoleophilic coating of thiol-ene hybrid, consisting of pentaerythritol tetra(3-mercaptopropionate) (PETMP), 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane (TMTVSi), and hydrophobic fumed silica nanoparticles, via a simple two-step fabrication process. Spray deposition and UV curing photopolymerization were sequentially performed, during which solvent evaporation provides microscale roughness while nanoparticle aggregation forms nanoscale roughness. The hierarchical morphologies were stabilized after UV curing photopolymerization. High contact angle (>150°) and low roll-off angle (<5°) were achieved due to the multiscale roughness structure of the hierarchical morphologies. These coatings also have excellent chemical resistance, as well as temperature and pH stability, after curing. (Figure Presented).

Original languageEnglish
Pages (from-to)18566-18573
Number of pages8
JournalACS Applied Materials and Interfaces
Volume7
Issue number33
DOIs
Publication statusPublished - 2015 Aug 26
Externally publishedYes

Keywords

  • oil/water separation
  • silica nanoparticles
  • spray-coating
  • superhydrophobic
  • superoleophilic
  • thiol-ene chemistry
  • UV-curing

ASJC Scopus subject areas

  • Materials Science(all)

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