Chitosan nanocomposites for water treatment by fixed-bed continuous flow column adsorption: A review

Anny Leudjo Taka; Michael J Klink; Xavier Yangkou Mbianda; Eliazer Bobby Naidoo

doi:10.1016/j.carbpol.2020.117398

Chitosan nanocomposites for water treatment by fixed-bed continuous flow column adsorption: A review

Carbohydr Polym. 2021 Mar 1:255:117398. doi: 10.1016/j.carbpol.2020.117398. Epub 2020 Nov 12.

Authors

Anny Leudjo Taka¹, Michael J Klink², Xavier Yangkou Mbianda³, Eliazer Bobby Naidoo¹

Affiliations

¹ Institute of Chemical & Biotechnology, Vaal University of Technology, Southern Gauteng Science and Technology Park, Sebokeng Campus, 1983, South Africa; Department of Chemistry, Vaal University of Technology, Vanderbijlpark Campus, South Africa; Department of Biotechnology, Vaal University of Technology, Vanderbijlpark Campus, South Africa.
² Department of Chemistry, Vaal University of Technology, Vanderbijlpark Campus, South Africa; Department of Biotechnology, Vaal University of Technology, Vanderbijlpark Campus, South Africa; Department of Chemical Sciences, University of Johannesburg, Doornfontein, Johannesburg 2028, South Africa. Electronic address: michaelk1@vut.ac.za.
³ Department of Chemical Sciences, University of Johannesburg, Doornfontein, Johannesburg 2028, South Africa. Electronic address: mbianday@uj.ac.za.

PMID: 33436226
DOI: 10.1016/j.carbpol.2020.117398

Abstract

Nowadays, access to clean water sources worldwide and particularly in Southern Africa is inadequate because of its pollution by organic, inorganic, and microorganism contaminants. A range of conventional water treatment techniques has been used to resolve the problem. However, these methods are currently facing the confronts posed by new emerging contaminants. Therefore, there is a need to develop simple and lower cost-effective water purification methods that use recyclable bio-based natural polymers such as chitosan modified with nanomaterials. These novel functional chitosan-based nanomaterials have been proven to effectively eliminate the different environmental pollutants from wastewater to acceptable levels. This paper aims to present a review of the recent development of functional chitosan modified with carbon nanostructured and inorganic nanoparticles. Their application as biosorbents in fixed-bed continuous flow column adsorption for water purification is also discussed.

Keywords: Bio-based natural polymers; Chitosan; Fixed-bed column adsorption; Nanocomposite.

Publication types

Review