RETRACTED: The role of black soldier fly (BSF) in eliminating the putrid odor of organic waste and its product application - A comprehensive review.

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal).

Graphene oxide functionalized chitosan-magnetite nanocomposite for removal of Cu(II) and Cr(VI) from waste water.

A novel adsorbent material for removal of metal ions from aqueous solution was made by modifying chitosan. The schiff base prepared from reaction of chitosan with 3-(p-anisyl)-4-formylsydnone was further functionalized with graphene oxide. Finally FeO nanoparticles were incorporated into the modified chitosan to obtain a novel adsorbent material.

Modified chitosan gel incorporated with magnetic nanoparticle for removal of Cu(II) and Cr(VI) from aqueous solution.

A novel adsorbent material for removal of metal ion from aqueous solution was made by modification of chitosan. Schiff base prepared from reaction of chitosan with 3-methyl-1-phenyl-5-(piperidin-1-yl)-1H-pyrazole-4-carbaldehyde was crosslinked with epichlorohydrin to form a crosslinked gel. FeO nanoparticles were incorporated into the modified chitosan gel to obtain a magnetic adsorbent material.

Synthesis and metal ion adsorption characteristics of graphene oxide incorporated chitosan Schiff base.

The work reports the development of a novel adsorbent material based on modified chitosan for removal of Cu (II) and Cr (VI) ions from aqueous solution. Heterocyclic modification of chitosan has been achieved by the reaction of chitosan with 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde resulting in a Schiff base. This was further modified by incorporation of graphene oxide at the C6 position through ester linkage.