High-flux, porous and homogeneous PVDF/cellulose microfiltration membranes

L. C. Malucelli*, I. Ozeri, M. Matos, W. L.E. Magalhães, M. A.S.Carvalho Filho, M. S. Eisen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Low hydrophilicity of membranes is probably the biggest concern in membrane filtration since it increases the costs for water treatment. Conversely, application of hydrophilic biopolymers (such as cellulose) is limited because of its complex and crystalline structure. Enabling the wide use of the most common biopolymer in nature is crucial to improve the performance of water treatment, especially in terms of membrane sustainability. Here, we study the effect of cellulose dissolution in the synthesis of homogeneous PVDF/cellulose membranes. Although only partial dissolution was achieved for studied samples, adding cellulose to the membranes greatly improved their water flux. Besides, the porous structure obtained after partial solvent removal indicates the water flux (and consequently the pore size) may be tailored according to the membrane production method. Therefore, the homogeneous cellulose microfiltration membranes studied here may have potential for water treatment considering their high-water flux and low complexity to produce.

Original languageEnglish
Pages (from-to)1943-1953
Number of pages11
JournalCellulose
Volume29
Issue number3
DOIs
StatePublished - Feb 2022
Externally publishedYes

Keywords

  • Membrane filtration
  • Nanocelulose
  • Water treatment

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