2023
DOI: 10.48048/tis.2024.7262
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Adsorption of Congo Red from Aqueous Solutions by Alginate-Nanocellulose-Polyethyleneimine Hydrogel Beads

Putri Amanda,
Yudhi Dwi Kurniawan,
Kurnia Wiji Prasetiyo
et al.

Abstract: Biobased adsorbents have been developed for the removal of dye contaminants in aqueous solution. Hydrogel beads from alginate containing TEMPO-oxidized cellulose nanofibers (TOCNF) grafted with polyethyleneimine (PEI), namely Al/TOCNF-PEI, were prepared and evaluated as a new adsorbent for Congo Red (CR). The Al/TOCNF-PEI hydrogel beads were made with various concentrations of TOCNF/PEI, the optimum concentration is 45 wt% or Al/TOCNF-PEI45. The hydrogel was characterized by using Fourier-Transform Infrared sp… Show more

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