Published : 2024-11-28

Graphene oxide-modified cellulose acetate membranes with improved Congo red removal efficiency

Abstract

The casting method was used to obtain membranes from cellulose acetate (CA) with different contents (0.1; 0.4; 0.8 wt%) of graphene oxide (GO). FESEM and FT-IR were used to evaluate the membrane structure. The contact angle was also examined. Congo red was used to evaluate the membrane efficiency. The contact angle of CA/GO membranes decreased from 55.47˚ (CA) to 38.16˚ (0.4 wt% GO), which indicates good dispersion of GO in the CA matrix. CA/GO membranes showed less irreversible fouling, which indicates that reversible fouling predominated over fouling of all membranes. Increasing the membrane porosity, pore size and hydrophilicity results in higher permeability.



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Jafer, M., Mindeel, H., Hussein, A. A., Ibrahim, N. A., Taki, A. G., & Fawzi Nassar, M. (2024). Graphene oxide-modified cellulose acetate membranes with improved Congo red removal efficiency. Polimery, 69(10), 568–576. https://doi.org/10.14314/polimery.2024.10.3