A critical review on three-dimensional cellulose-based aerogels: synthesis, physico-chemical characterizations and applications as adsorbents for heavy metals removal from water

Pollution and contamination of water with heavy metals is a global challenge which demands efficient, economic and sustainable solution. The grafting/addition of poly-functional groups (ligands) on the polysaccharides chains can high adsorption affinities towards heavy metals. Aerogels are a class o...

Full description

Saved in:
Bibliographic Details
Published in:Cellulose (London) 2023-04, Vol.30 (6), p.3397-3427
Main Authors: Gupta, Arijit Dutta, Kirti, Nikhil, Katiyar, Parul, Singh, Harinder
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Aerogels
Bioorganic Chemistry
Cellulose
Ceramics
Chemical synthesis
Chemistry
Chemistry and Materials Science
Composites
Controllability
Copper
Functional groups
Glass
Heavy metals
Metals
Natural Materials
Organic Chemistry
Physical Chemistry
Polymer Sciences
Polysaccharides
Porous materials
Review Paper
Surface chemistry
Sustainable Development
Wastewater
Water pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Pollution and contamination of water with heavy metals is a global challenge which demands efficient, economic and sustainable solution. The grafting/addition of poly-functional groups (ligands) on the polysaccharides chains can high adsorption affinities towards heavy metals. Aerogels are a class of three-dimensional porous materials with outstanding physic-chemical characteristics (low density, high surface to volume ratio and controllable surface chemistry). In the recent years, aerogels have gained sufficient attention for the remediation of heavy metal ions from wastewater. The present review critically analyses the various synthesis routes for the cellulose aerogels and their applications as an adsorbent for heavy metal ions from water. This review critically analyzes the various synthesis routes for three-dimensional cellulose-based aerogels, their physico-chemical characterizations and removal mechanisms for the adsorption of heavy metal ions from water with insights into isotherm and kinetic models. Challenges (reactor configuration, scale-up, and proper selection of drying technique) and future research directions for the development of robust and efficient cellulose aerogels for the mitigation of heavy metal ions from water have also been elucidated.
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-023-05129-4