New RO TFC membranes by interfacial polymerization in n-Dodecane with various co-solvents

Abdullah Sulaiman Al-Hobaib, Mohammed Sulaiman Al-Suhybani, Khalid Mohammed Al-Sheetan, Hasan Mousa, Mohammed Rafi Shaik

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The objective of this research is to prepare and characterize a new and highly efficient polyamide TFC RO membrane by interfacial polymerization in dodecane solvent mixed with co-solvents. Three co-solvents were tested namely; acetone, ethyl acetate, and diethyl ether of concentration of 0.5, 1, 2, 3, and 5 wt. The modified membranes were characterized by SEM, EDX, AFM and contact angle techniques. The results showed that addition of co-solvent results in a decrease in the roughness, pore size and thickness of the produced membranes. However, as the concentration of the co-solvent increases the pore size of the membranes gets larger. Among the three co-solvents tested, acetone was found to result in membranes with the largest pore size and contact angle followed by diethyl ether then ethyl acetate. Measured contact angle increases as the concentration of the co-solvent increases reaching a constant value except for ethyl acetate where it was found to drop. Investigating flux and salt rejection by the formulated membranes showed that higher flux was attained when acetone was used as a co-solvent followed by diethyl ether then ethyl acetate. However, the highest salt rejection was achieved with diethyl ether.

Original languageEnglish
Article number24
JournalMembranes
Volume6
Issue number2
DOIs
Publication statusPublished - Jun 1 2016

Fingerprint

Polymerization
Membranes
Ether
Ethers
Acetone
Pore size
Contact angle
Salts
Fluxes
n-dodecane
Nylons
Polyamides
Energy dispersive spectroscopy
Surface roughness
Scanning electron microscopy
ethyl acetate

Keywords

  • Co-solvent
  • Desalination
  • Interfacial polymerization
  • RO membrane

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science(all)
  • Process Chemistry and Technology
  • Filtration and Separation

Cite this

New RO TFC membranes by interfacial polymerization in n-Dodecane with various co-solvents. / Al-Hobaib, Abdullah Sulaiman; Al-Suhybani, Mohammed Sulaiman; Al-Sheetan, Khalid Mohammed; Mousa, Hasan; Shaik, Mohammed Rafi.

In: Membranes, Vol. 6, No. 2, 24, 01.06.2016.

Research output: Contribution to journalArticle

Al-Hobaib, Abdullah Sulaiman ; Al-Suhybani, Mohammed Sulaiman ; Al-Sheetan, Khalid Mohammed ; Mousa, Hasan ; Shaik, Mohammed Rafi. / New RO TFC membranes by interfacial polymerization in n-Dodecane with various co-solvents. In: Membranes. 2016 ; Vol. 6, No. 2.
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