One-step candle soot-PDMS dip-coated superhydrophobic stainless steel mesh for oil-water separation

Rajaram S. Sutar, Sanjay S. Latthe*, Xinna Wu, Bairu Shi, Nikhil N. Pargaonkar, Sagar S. Ingole, Anand N. Biradar, Saravanan Nagappan, Yong Hyun Kim, Appasaheb K. Bhosale, Viswanathan S. Saji, Shanhu Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

We presented a superhydrophobic stainless steel mesh (SSM) developed by facile one-step dip coating of candle soot (CS)-polydimethylsiloxane (PDMS) using chloroform as solvent for effective and durable oil-water separation. SSM dip coated with chloroform solution of 200 mg CS and 0.5 mL PDMS yielded water contact angle (WCA), oil contact angle (OCA) and sliding angle (SA) of 162 ± 2°, 0° and 4 ± 1°, respectively. In series of oil-water separation studies, superhydrophobic mesh revealed >98 % separation efficiency with high separation flux of 7810 L·m−2·h−1. The superhydrophobic mesh revealed excellent mechanical, chemical and thermal durability.

Original languageEnglish
Article number135791
JournalMaterials Letters
Volume357
DOIs
StatePublished - 15 Feb 2024

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

  • Candle soot
  • Composite
  • Oil-water separation
  • Steel mesh
  • Superhydrophobic

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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