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Enantiomeric and Racemic effect of Tartaric acid on Brilliant Green dye Removal on Polysulfone based Membrane by MEUF process

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Author Affiliations

  • 1Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
  • 2Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India

Res. J. Recent Sci., Volume 5, Issue (ISC-2015), Pages 27-32, -----Select----,2 (2016)

Abstract

The enantiomeric and racemic effect of tartaric acid (TA) was studied on the properties of polysulfone (PSn) ultrafiltration membranes. Dextro-tartaric acid (D-TA) and DL-tartaric acid (DL-TA) were used as additives in the present study. Investigation was done in terms of permeation and rejection behaviour of fabricated membrane for brilliant green dye (BGD), with and without an anionic surfactant sodium dodecyl sulphate (SDS) from aqueous media. Morphological study of the prepared membranes was done by field-emission scanning electron microscope and scanning electron microscope. Permeability method was used for determining the pore number, area of pores and average pore size for all the prepared membranes. Whereas, contact angle, equilibrium water content, hydraulic resistance, porosity and ion exchange capacity were measured for finding the hydrophilicity (HPCT) of these membranes. The measurements of water contact angle provide evidence that the HPCT of PSn membrane increases by addition of the D-TA in the casting solution. This study shows that addition of D-TA in membrane results in enhanced pure water flux and rejection as well as higher permeation compared to ordinary PSn membrane. We expect that hydrophilic PSn membrane modified by D-TA has a capability to be used in separation field.

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