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High flux membrane based on in-situ formation of zirconia layer coated the polyethersulfone substrate for ions separation

  • School of Environment, Harbin Institute of Technology
  • National University of Sciences
  • Polytechnic School of Abomey-Calavi

Research output: Contribution to journalArticlepeer-review

Abstract

A flawless, extremely loose, membrane, efficient for multivalent ions separation, has been successfully synthesized by the in-situ formation approach. The as-synthesized nanofiltration (NF) membrane, NF_PES-Zr, proceeded from a thin film layer of nanoparticles (NPs) zirconium that coated the platform of the polyethersulfone (PES) ultrafiltration (UF) membrane through a bio-glue made from dopamine hydrochloric and sodium bicarbonate buffer. The estimation of the average pore size of the novel organic-inorganic NF membrane NF_PES-Zr using the filtration velocity approach of Guerout-Elford-Ferry was close to 0.9 nm. NF_PES-Zr membrane holds a record in permeate water flux release of about 62.5 L:m-2:h-1 and was revealed to be effective for multivalent ions separation. A 5 days-test performed on NF_PES-Zr demonstrated its long-term stability and showed a rejection rate of 93.4% and 37.8%

Original languageEnglish
Pages (from-to)3344-3355
Number of pages12
JournalWater Supply
Volume21
Issue number7
DOIs
StatePublished - 1 Nov 2021
Externally publishedYes

Keywords

  • Ions rejection
  • Nanofiltration
  • Nanoparticle
  • Organic-inorganic membrane
  • Polyethersulfone
  • Zirconium

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