Removal of mercury(II) from aqueous solution by partially reduced graphene oxide.

ABSTRACT: Mercury (Hg(II)) has been classified as a pollutant and its removal from aqueous sources is considered a priority for public health as well as ecosystem protection policies. Oxidized graphenes have attracted vast interest in water purification and wastewater treatment. In this report, a partially reduced graphene oxide is proposed as a pristine adsorbent material for Hg(II) removal. The proposed material exhibits a high saturation Hg(II) uptake capacity of 110.21 mg g^-1, and can effectively reduce the Hg(II) concentration from 150 mg L^-1 to concentrations smaller than 40 mg L^-1, with an efficiency of about 75% within 20 min. The adsorption of Hg(II) on reduced graphene oxide shows a mixed physisorption-chemisorption process. Density functional theory calcul

SUBMITTER: Tene T 

PROVIDER: S-EPMC9018808 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature