Conversion of microfiltration membrane into nanofiltration membrane by vapour phase deposition of aluminium for desalination application

Mahesh Padaki, Arun M. Isloor, K. K. Nagaraja, H. S. Nagaraja, Manjunatha Pattabi

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Preparation and modification of NF membrane are challenging aspects in research. In the present work, we have synthesised Polysulfone (PSf) microfiltration membrane and reduced the pore size to nano level by physical vapour deposition (PVD) of aluminium metal. Membrane pore size was reduced from micro pore to nano pore, which rejected 42.22% of NaCl from the solution with 164L/m2h. And also water permeation decreases from 1.10324-10-10 to the 9.141-10-12. The SEM and AFM pictures showed the surface modification and metal deposition in the pores. The performance of the membrane was studied by dead end flow cell using 3.5% of NaCl solution, in which PVD membrane showed 42.22% of rejection with 16.4L/m2h flux. Thermal analysis from DSC showed Tg of 265°C. Contact angle measurement, and water uptake were also reported.

Original languageEnglish
Pages (from-to)177-181
Number of pages5
JournalDesalination
Volume274
Issue number1-3
DOIs
Publication statusPublished - 01-07-2011

Fingerprint

Nanofiltration membranes
Microfiltration
Desalination
Aluminum
desalination
aluminum
Vapors
membrane
Membranes
Physical vapor deposition
Pore size
Metals
Polysulfones
Water
metal
water uptake
Angle measurement
Permeation
Thermoanalysis
Contact angle

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Chemistry(all)
  • Materials Science(all)
  • Water Science and Technology

Cite this

Padaki, Mahesh ; Isloor, Arun M. ; Nagaraja, K. K. ; Nagaraja, H. S. ; Pattabi, Manjunatha. / Conversion of microfiltration membrane into nanofiltration membrane by vapour phase deposition of aluminium for desalination application. In: Desalination. 2011 ; Vol. 274, No. 1-3. pp. 177-181.
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Conversion of microfiltration membrane into nanofiltration membrane by vapour phase deposition of aluminium for desalination application. / Padaki, Mahesh; Isloor, Arun M.; Nagaraja, K. K.; Nagaraja, H. S.; Pattabi, Manjunatha.

In: Desalination, Vol. 274, No. 1-3, 01.07.2011, p. 177-181.

Research output: Contribution to journalArticle

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