Issue 36, 2022

Recent progress, synthesis, and application of chitosan-decorated magnetic nanocomposites in remediation of dye-laden wastewaters

Abstract

Over the past several decades, the disposal of dyes from the industrial manufacturing sector has had an inadvertent impact on water ecology as polluted water bodies with hazardous dyes directly or indirectly perturb the entire biosphere thus making it a subject of topical interest. In this regard, chitosan-based decorated magnetic nanocomposites (CDMNs) have been used as efficient, cost-effective, and biodegradable nano-adsorbents, for the removal of environmental contaminants. With exceedingly advanced properties such as a high specific surface area, apparent active sites, facile isolation, recyclability, and convenient functioning, these nanomaterials also overcome the post-processing difficulties of adsorption due to their magnetic responsiveness. Furthermore, the use of the low-cost, natural and abundant biopolymer, chitosan, in these nanocomposites ensures an enhanced number of active sites, making CDMNs both environmentally friendly and effective for water treatment. Herein, we have discussed methods to synthesize novel nanocomposites by cross-linking with chitosan and their application in the removal of toxic cationic, anionic, and azo dyes from aqueous solutions. Furthermore, different parameters assessed by various groups that impact the adsorption capacity of CDMNs are discussed, including the effect of pH, temperature, and contact time, as well as the precise interpretation of the underlying thermodynamic factors. The advantages and disadvantages of CDMNs are also highlighted along with the future outlook in this field of research.

Graphical abstract: Recent progress, synthesis, and application of chitosan-decorated magnetic nanocomposites in remediation of dye-laden wastewaters

Article information

Article type
Perspective
Submitted
19 jul 2022
Accepted
18 ago 2022
First published
18 ago 2022

New J. Chem., 2022,46, 17114-17139

Recent progress, synthesis, and application of chitosan-decorated magnetic nanocomposites in remediation of dye-laden wastewaters

S. Gulati, H. N. Lingam B, A. Baul, S. Kumar, R. Wadhwa, M. Trivedi, R. S. Varma and A. Amar, New J. Chem., 2022, 46, 17114 DOI: 10.1039/D2NJ03558H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements