Cellulose acetate/poly(ethylene glycol)/Iron oxide composite membranes for improved dye removal

K. Rambabu, S. Velu, Anand V.P. Gurumoorthy

    Research output: Contribution to journalArticlepeer-review

    1 Scopus citations

    Abstract

    A series of cellulose acetate (CA) ultrafiltration membrane blended with poly(ethylene glycol) (PEG) and Iron oxide (Fe2O3) was prepared by phase inversion technique. Fe2O3 was varied from 0-3 wt% in the casting solution composition to study its effect on the blend membranes. Prepared membranes were analyzed for their morphology, ultrafiltration (UF) features and dye rejection performance. Surface pore studies revealed the increase in the number of pores as well as pore size due to the addition of Fe2O3 to CA. Surface roughness was increased drastically for high concentration Fe2O3 composite membranes. Surface hydrophilicity was improved due to the addition of Fe2O3 in the composite membranes. Porosity measurements confirmed the enhanced porous nature of CA/PEG/Fe2O3 blend membranes than the pristine PES membrane. Pure water flux of the Fe2O3 composite membranes was improved to a maximum of three times as compared with pure PES membrane. Dye rejection studies revealed that the blend membranes had almost the same rejection as that of the pristine membrane with a largely enhanced flux rate. Results obtained clearly indicated the better performance of 1 wt% Fe2O3 blend membrane among the synthesized UF membranes.

    Original languageBritish English
    Pages (from-to)552-560
    Number of pages9
    JournalResearch Journal of Pharmaceutical, Biological and Chemical Sciences
    Volume7
    Issue number2
    StatePublished - 2016

    Keywords

    • Cellulose acetate
    • Dye rejection
    • Iron oxide
    • Polyethylene glycol
    • Ultra filtration

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