An Underwater Superoleophobic Sepiolite Fibrous Membrane (SFM) for Oil­-in­-water Emulsion Separation

  • Pinjiang Yao

Student thesis: Master's Thesis

Abstract

Separating oil/water emulsions is significant for the ecosystem and the petroleum and processing industry. To this end, we prepared an underwater superoleophobic membrane inspired by unique wettability of the fish scales. This membrane was fabricated by a facile vacuum filtration process of sepiolite nanofibers and chitosan, and after the cross-linking via glutaraldehyde, a self-standing membrane was obtained. The as-prepared membrane exhibited excellent capability of separating both the surfactant-free and surfactant-stabilized oil-in-water emulsions with high efficiency. This sepiolite fibrous membrane offers a convenient, reliable and efficient way for the large-scale de-emulsification process.
Date of AwardDec 2014
Original languageEnglish (US)
Awarding Institution
  • Biological, Environmental Science and Engineering
SupervisorPeng Wang (Supervisor)

Keywords

  • Underwater superoleophobic
  • Membrane
  • Emulsion Separation

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