Melamine-based functionalized graphene oxide and zirconium phosphate for high performance removal of mercury and lead ions from water.

ABSTRACT: Heavy metal ions are highly toxic and widely spread as environmental pollutants. This work reports the development of two novel chelating adsorbents, based on the chemical modifications of graphene oxide and zirconium phosphate by functionalization with melamine-based chelating ligands for the effective and selective extraction of Hg(ii) and Pb(ii) from contaminated water sources. The first adsorbent melamine, thiourea-partially reduced graphene oxide (MT-PRGO) combines the heavier donor atom sulfur with the amine and triazine nitrogen's functional groups attached to the partially reduced GO nanosheets to effectively capture Hg(ii) ions from water. The MT-PRGO adsorbent shows high efficiency for the extraction of Hg(ii) with a capacity of 651 mg g^-1 and very fast kinetics result

SUBMITTER: Bakry AM 

PROVIDER: S-EPMC9057240 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature