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

doi:10.1016/j.desal.2011.02.007

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

^*Corresponding author for this work

Department of Physics, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

26 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 language	English
Pages (from-to)	177-181
Number of pages	5
Journal	Desalination
Volume	274
Issue number	1-3
DOIs	https://doi.org/10.1016/j.desal.2011.02.007
Publication status	Published - 01-07-2011

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Mechanical Engineering
General Chemistry
General Materials Science
Water Science and Technology

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10.1016/j.desal.2011.02.007

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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.",

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AU - Padaki, Mahesh

AU - Isloor, Arun M.

AU - Nagaraja, K. K.

AU - Nagaraja, H. S.

AU - Pattabi, Manjunatha

PY - 2011/7/1

Y1 - 2011/7/1

N2 - 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.

AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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