Journal
ENVIRONMENTAL CHEMISTRY LETTERS
Volume 20, Issue 3, Pages 1965-2017Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-022-01401-4
Keywords
Nanocellulose; Cellulose beads; Adsorption isotherms; Kinetics; Regeneration; Wastewater treatment
Funding
- Universiti Sains Malaysia [1001/PKIMIA/8011077, 304/PKIMIA/6501094/I129]
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Wastewater pollution is a significant issue that requires advanced treatment methods, such as nanotechnologies. Nanocelluloses, in particular, show promise as adsorbents due to their high surface area and ability to be functionalized. This review focuses on cellulose-based beads and covers their preparation, properties, kinetics, adsorption isotherm modeling, and application in wastewater treatment, specifically for removing metal ions and dyes.
Wastewater pollution is a major issue requiring advanced treatment methods such as nanotechnologies. In particular, nanocelluloses appear promising as adsorbents due to their elevated surface area, which can be functionalized. Here we review cellulose-based beads with focus on preparation, properties, kinetics, adsorption isotherm modeling and application for wastewater treatment, especially for the removal of metal ions and dyes. Preparation of cellulose-based beads is mainly done by the ionotropic gelation method. High adsorption capacities up to 568.62 mg g(-1) for heavy metal ions and 1550.55 mg g(-1) for dyes have been reported. We also discuss the regeneration capability of cellulose-based beads.
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