Synthesis of FeO@SiO <sub>2</sub> –DNA core–shell engineered nanostructures for rapid adsorption of heavy metals in aqueous solutions
David Patiño‐Ruiz, Lars Rehmann, Mehrab Mehrvar, Édgar Quiñones-Bolaños, Adriana Herrera
Abstract
-DNA shows higher adsorption efficiency of 69% for Pb(ii) removal compared to As(iii) (51%) and Hg(ii) (41%). The selectivity towards Pb(ii) is attributed to the similar acid nature to ds-DNA, where the ionic strength interaction provides good affinity and stability. The facile synthesis and rapid adsorption suggest a promising nanostructure for the remediation of water sources contaminated with heavy metal ions and can be extended to other complex molecules.
Topics & Concepts
AdsorptionAqueous solutionChemical engineeringSuperparamagnetismInorganic chemistryChemistryMetal ions in aqueous solutionNanocompositeMaterials scienceMetalNanotechnologyOrganic chemistryMagnetizationMagnetic fieldPhysicsEngineeringQuantum mechanicsAdvanced biosensing and bioanalysis techniquesNanomaterials for catalytic reactionsAdsorption and biosorption for pollutant removal