Alginate-based nanobiosorbents for bioremediation of environmental pollutants

Komal Rizwan*, Tahir Rasheed, Muhammad Bilal

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

6 Scopus citations


Industry development has led to increasing environmental pollution. The adsorption process for the removal of environmental contaminants is considered simple, greener, and cost friendly. Natural polymers or organic compounds produced by living organisms are renewable sources possessing excellent structural modalities, abundant in nature, non-toxic, biocompatible, and promising potential. Sodium alginate is a polysaccharide obtained from brown algae. The presence of hydroxyl and carboxyl moieties made it valuable for adsorption of environmental contaminants including heavy metals, pharmaceutical contaminants, dyes, and radionuclides from aqueous media. Mechanical and thermal stability of alginates is enhanced by compositing it with other inorganic nanomaterials, carbonaceous materials, microbes, and various other polymers. In this chapter, we have summarized sodium alginate modification, alginate-based composites, and their adsorption potential for removal of array of environmental contaminants. Finally, the limitations associated with the sodium alginate adsorbents have been discussed along with future suggestions and perspectives.

Original languageEnglish
Title of host publicationNano-biosorbents for Decontamination of Water, Air, and Soil Pollution
Number of pages24
ISBN (Print)9780323909129
StatePublished - 2 Jul 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Inc. All rights reserved.


  • Adsorbent
  • Composite
  • Environmental pollutants
  • Heavy metals
  • Hydrogen bonding
  • Sodium alginate

ASJC Scopus subject areas

  • General Engineering
  • General Materials Science


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