Fabrication of a Flexible Si-cotton Filter Membrane for Efficient Hot Oil/Hot Water Separation

Leila Ghorbani, Ali Khatibi, Saravana B. Basuvalingam, Daniela Caschera, Babak Shokri (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
52 Downloads (Pure)

Abstract

Increasing oily industrial waste water at room and high temperatures has become one of the most significant threats to the global ecosystem. Finding a suitable method for separating hot-oil/water pollution with an appropriate filter is highly necessary to effectively solve this problem. In this study, high-temperature oil/water separation was achieved using a silicon-modified textile (Si-cotton) as a filter, which was fabricated using polydimethylsiloxane (PDMS) solution as the precursor and through plasma polymerization. The plasma polymerization generated a uniform micro and nanoscale hierarchical structure on the Si-cotton surface. Furthermore, XPS and FT-IR analysis showed the lowering of the O/C ratio on the Si-cotton surface with respect to the pristine textile, and the presence of silicon on the Si-cotton surface after the plasma process. The results of these factors can be critical in making the final hydrophobic/oleophilic behaviour of the textile. More importantly, the Si-cotton membrane was tested for the separation process of hot oil/hot water mixture, which showed an acceptable efficiency even after fifteen separation cycles. The findings offered a two-step method, efficient and green, which was capable of working well even at a high temperature, to fabricate a flexible and scalable Si-cotton textile filter for reducing the necessity of additional and complicated cooling processes in the presence of high-temperature oil/water mixture.

Original languageEnglish
Pages (from-to)843-851
Number of pages9
JournalFibers and Polymers
Volume23
Issue number3
DOIs
Publication statusPublished - Mar 2022

Bibliographical note

Funding Information:
This work has been supported by the Plasma Laboratory in Shahid Beheshti University. The authors declare that this research has been carried out without receiving any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Keywords

  • Coating
  • Cotton textile
  • Hot oil/Hot water separation
  • PDMS
  • Plasma polymerization

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