Synthesis, structural, magnetic property, and Cd(II) adsorption behavior of Ca-substituted MgFe2O4 nanomaterials in aqueous solutions

Resource utilization of oak fruit peel as biomass waste for the synthesis of carbon with graphene oxide-like composition and its composite with Mg1−xCaxFe2O4for Cd(ii) removal from water: characterization, magnetic properties, and potential adsorption study

“…Besides, Ca 2+ substitution in the MgFe 2 O 4 can greatly alter the structural, magnetic, and adsorption properties of nanomaterials. 14 Accordingly, the use of Ca-substituted MgFe 2 O 4 with GO as a magnetic composite could be a suitable choice for Cd 2+ adsorption from aqueous solutions. However, such studies are scarce in the published literature.…”

“…Of the prepared nanomaterials, those with Ca amounts of 0.2 ( q e = 100 mg g −1 ) and 0.8 ( q e = 90 mg g −1 ) showed the highest Cd 2+ adsorption capacity under specific conditions: 20 min contact time, pH 7, 3 mg nanomaterial dosage, and 60 mg L −1 ion concentration. 14 In continuation, the present work is focused on the feasibility of using carbon with GO-like composition (C GO ) derived from OFP waste in composite with Mg 1− x Ca x Fe 2 O 4 (MCF) ( x = 0.2 (MCF2) and 0.8 (MCF8)) to remove Cd 2+ from aqueous solutions. This approach also offers a practical basis for examining the combined impact of C GO and MCF with low ( x = 0.2) and high ( x = 0.8) calcium levels.…”