Extraction and characterization of modified algae derivative cellulose and its mixtures for dye removal

A new bio-sorbent derived from green algae biomass, Arthrospira platensis (Spirulina), was found to be economically practical for water decontamination. This biosorbent comprised of microalgae cellulose, poly(lactic acid) (PLA), Dabai activated carbon (AC), and montmorillonite (MMT), each plays a di...

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Bibliographic Details
Published in:Bioresources 2023-08, Vol.18 (3), p.5967-5992
Main Authors: Rahman, Md. Rezaur, James, Anthonette Anak, Othman, Al-Khalid bin, Bin Bakri, Muhammad Khusairy, Uddin, Jamal, Sueraya, Ain Zaienah, Matin, Mohammed Mahbubul, Alfaifi, Sulaiman Y., Madkhali, O., Aljabri, Mahmood D., Rahman, Mohammed M.
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Algae
Aquatic microorganisms
Aquatic plants
Binding sites
Biodegradable materials
Biomass
Carbonyl compounds
Carbonyls
Cellulose
clay
Color removal
composite
Decontamination
Dyes
Effluents
Functional groups
Hydrophobicity
Irradiation
Light irradiation
Membrane separation
Methylene blue
Mixtures
Montmorillonite
Polylactic acid
Scanning electron microscopy
Sorbents
Spectroscopy
synthesis
Thermal properties
Thermodynamic properties
Ultraviolet radiation
Water purification
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Summary:A new bio-sorbent derived from green algae biomass, Arthrospira platensis (Spirulina), was found to be economically practical for water decontamination. This biosorbent comprised of microalgae cellulose, poly(lactic acid) (PLA), Dabai activated carbon (AC), and montmorillonite (MMT), each plays a distinctive role in removing methylene blue (MB) dye. The presence of hydroxyl and carbonyl functional groups in algae cellulose, confirmed by the FTIR analysis, offered binding sites for dye removal. Scanning electron microscopy demonstrated the morphological structure of the biosorbent, highlighting the combined effect of microalgae cellulose, PLA, Dabai AC, and MMT mixtures. The inclusion of Dabai AC and MMT improved micropores and mesopores, enhancing adsorption reactions. The Brunauer-Emmett-Teller (BET) analysis confirmed that the sample containing microalgae cellulose, Dabai AC, and MMT clay in PLA had a specific surface area of 0.784 m2/g, three times higher than the PLA + cellulose sample. Additionally, adding 1% MMT to the sample improved the particle dispersion on the surface of the hydrophobic PLA, thereby improving its thermal properties. Remarkably, the biosorbent effectively eliminated 86.8% of MB dye from an initial concentration of 50 mg/L after 60 min of Vis-light irradiation using Ultraviolet-visible spectroscopy.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.18.3.5967-5992