Tailoring of Narrow Pores, Pore Size Distribution and Structural Details in Asymmetric Nanofiltration Membranes via Polyvinyl-pyrrolidone Additive

Authors

  • Nurul Hannan Mohd Safari
    Affiliation
    East Coast Environmental Research Institute, Universiti Sultan Zainal Abidin, 21300 Kuala Nerus, Terengganu, Malaysia
  • Sabariah Rozali
    Affiliation
    East Coast Environmental Research Institute, Universiti Sultan Zainal Abidin, 21300 Kuala Nerus, Terengganu, Malaysia
  • Abdul Rahman Hassan
    Affiliation
    East Coast Environmental Research Institute, Universiti Sultan Zainal Abidin, 21300 Kuala Nerus, Terengganu, Malaysia Faculty of Innovative Design and Technology, Universiti Sultan Zainal Abidin, 21300 Kuala Nerus, Terengganu, Malaysia
  • Musa Ahmad
    Affiliation
    Faculty of Science and Technology, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan, Malaysia
https://doi.org/10.3311/PPch.19805

Abstract

The roles of polyvinyl-pyrrolidone (PVP) additive in the tailoring of pores, pore size distribution, morphologies and molecular weight cut-off (MWCO) in phase inversion asymmetric nanofiltration membranes was addressed. Using established solute transport method, scanning electron microscopy (SEM) and Minitab software, details analysis of the enhanced performance-properties of narrow pores nanofiltration membranes were verified. Experimental and analysis data revealed that the membranes prepared with 2 wt% of PVP demonstrated fine performance-properties. At this concentration, the fabricated nanofiltration membranes possessed narrow pore size and molecular weight cut-off of 1.14 nm and 2290 Da, respectively. In addition, the fabricated nanofiltration membranes displayed fine structural details of narrow pore size distribution, good morphology and critical key properties. With the combinations of thinner skin layer, fine structures and narrow pores, it can be concluded that the 2 wt% of PVP is the optimum PVP concentration to produce selective narrow pore nanofiltration membranes. Eventually, summary data on pores, pore size distributions (PSDs) and key properties proved that the PVP additive is effective for controlling performances-properties and structural details in asymmetrical based membranes.

Keywords:

additive, molecular weight cut-off, morphology, nanofiltration, narrow pore, polyvinyl-pyrrolidone

Citation data from Crossref and Scopus

Published Online

2022-10-03

How to Cite

Safari, N. H. M., Rozali, S., Hassan, A. R., Ahmad, M. “Tailoring of Narrow Pores, Pore Size Distribution and Structural Details in Asymmetric Nanofiltration Membranes via Polyvinyl-pyrrolidone Additive”, Periodica Polytechnica Chemical Engineering, 66(4), pp. 576–584, 2022. https://doi.org/10.3311/PPch.19805

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