Sustainable plant and microbes-mediated preparation of Fe3O4 nanoparticles and industrial application of its chitosan, starch, cellulose, and dextrin-based nanocomposites as catalysts

• Published in: International journal of biological macromolecules 2021-05, Vol.179, p.429-447
• Main Authors: Mallakpour, Shadpour, Tukhani, Maryam, Hussain, Chaudhery Mustansar
• Format: Article
• Language: English
• Subjects: Biopolymeric nanocomposites; Catalysts; Chitosan; Magnetic nanoparticles; Plant mediated synthesis; Starch
• ISSN: 0141-8130; 1879-0003
• DOI: 10.1016/j.ijbiomac.2021.02.183

Iron oxide nanoparticles (Fe3O4 NPs) attracted significant scientific interest, considering their immense diversity of usage and biocompatibility. Perceiving the growing importance of sustainable chemistry, many efforts have been made to prepare these NPs using naturally occurring materials mostly plant extracts and microbes. Magnetic NPs (MNPs) are commonly used as composites and are considered in two matters: synthesis and modification of their functional groups. Biopolymeric nanocomposites are a group of hybrid materials composed of natural polymers and inorganic nanomaterials. Biopolymers such as alginate, cellulose, starch, gelatin, chitosan, etc. have been considered extensively and provided composites with better electrical and mechanical thermal properties. Fe3O4 NPs incorporated in a polymer and biopolymer matrix is a good instance of the functional nanostructure, which has been able to enhance the properties of both ingredients. These hybrids can have impressive applications in various scopes such as magneto-optical storage, electromagnetic interference shielding, catalyst, water remediation, biomedical sensing, and so on. In this study, we have tried to briefly introduce Fe3O4 NPs, investigate the green and sustainable methods that have been suggested for its synthesis and review recent utilization of their biopolymeric nanocomposite (NC) including starch, chitosan, dextrin, etc. as catalysts and photocatalysts. [Display omitted] •The effect of shape and morphologies of Fe3O4 NPs on its magnetic attributes•Various construction formed during modification of MNPs with polymer•The latest sustainable and green methods used in the preparation of Fe3O4 NPs•Investigation of numerous biopolymers used in the formation of magnetic nanocomposites•Consideration of the catalytic performance of Fe3O4/biopolymer composites