Manufacturing of macroporous cellulose monolith from green macroalgae and its application for wastewater treatment

Mohamed Hamid Salim, Zineb Kassab, El houssaine Ablouh, Houssine Sehaqui, Adil Aboulkas, Rachid Bouhfid, Abou El Kacem Qaiss, Mounir El Achaby

    Research output: Contribution to journalArticlepeer-review

    17 Scopus citations

    Abstract

    Enormous interest in using marine biomass as a sustainable resource for water treatment has been manifested over the past few decades. Herein, the objective was to investigate the possible use of green macroalgae (Codium tomentosum) for cellulose-based foam production through a versatile and convenient process. Macroporous cellulose monolith was prepared from cellulose hydrogel using freeze-drying process, resulting in a mechanically rigid monolith with a high swelling ratio. The as-produced spongy-like porous cellulosic material was used as bio-sorbent for wastewater treatment, particularly for removing methylene blue (MB) dye from concentrated aqueous solution. The adsorption capacity of MB was subsequently studied, and the effect of adsorption process parameters was determined in a controlled batch system. From the kinetic studies, it was found that the adsorption equilibrium was reached within 660 min. Furthermore, the analysis of the adsorption kinetics reveals that the data could be fitted by a pseudo-second order model, while the adsorption isotherm could be described by Langmuir isotherm model. The maximum adsorption capacity was found to be 454 mg/g. The findings suggested that the produced cellulose monolith could be used as a sustainable adsorbent for water treatment.

    Original languageBritish English
    Pages (from-to)182-192
    Number of pages11
    JournalInternational Journal of Biological Macromolecules
    Volume200
    DOIs
    StatePublished - 1 Mar 2022

    Keywords

    • Green macroalgae
    • Macroporous cellulose monolith
    • Wastewater treatment

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