Update on chitosan-based electrospun nanofibers for wastewater treatment: A review

•Chitosan-based nanofibers are promising materials for the treatment of wastewater.•Chitosan can be functionalized with various functionalities and therefore can adsorb different pollutants.•In nanofibers surface area increase leading to increase adsorption efficiency.•Crosslinking process gives the...

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Bibliographic Details
Published in:Carbohydrate polymer technologies and applications 2021-12, Vol.2, p.100064, Article 100064
Main Authors: Sakib, Mohammad Nazmus, Mallik, Abul K., Rahman, Mohammed Mizanur
Format: Article
Language:English
Subjects:
Dyes adsorption
Electrospinning
Electrospun chitosan nanofibers
Heavy metals adsorption
Wastewater treatment
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Summary:•Chitosan-based nanofibers are promising materials for the treatment of wastewater.•Chitosan can be functionalized with various functionalities and therefore can adsorb different pollutants.•In nanofibers surface area increase leading to increase adsorption efficiency.•Crosslinking process gives the chitosan-based nanofiber much strength, which is favorable for an adsorbent.•Chitosan-based nanofibers could be transformed into various composites, membranes, films etc. facilitates for wastewater treatment. Now-a-days water pollution is one of the most concerned problem as it is increasing due to industrialization and human activities. The applications of electrospun nanofibers are increasing day by day due to their special properties such as huge surface-to-volume ratio, possibilities of surface modification and conversion to small mesh mat or membrane etc. Chitosan-based electrospun nanofibers have more avenues due to their additional benefits of non-toxicity, biocompatibility, biodegradability and cost-effectiveness. Although chitosan-based nanofibers have been using in various biomedical fields and reviewed, applications as adsorbents for the removal of heavy metals, dyes and other pollutants are relatively new and not reviewed yet. In this regard, the present review explores various types of chitosan-based nanofibers prepared with pure chitosan, mixed with other materials, surface-modified chitosan, magnetic chitosan etc., their adsorption performance and applications for the removal of heavy metals, dyes, and miscellaneous pollutants.
ISSN:2666-8939
2666-8939
DOI:10.1016/j.carpta.2021.100064