Synthesis of a highly porous three-dimensional PVA/GO/ZIF-67 cryogel for the simultaneous treatment of water contaminated with cadmium(<scp>ii</scp>) and lead(<scp>ii</scp>) heavy metal ions
Hamed Motaghi, Payam Arabkhani, Mohammad Parvinnia, Hamedreza Javadian, Arash Asfaram
Abstract
Binary adsorption of Pb 2+ and Cd 2+ on the PVA/GO/ZIF-67 cryogel was investigated. The mechanism of electrostatic attraction, ion exchange, physical and chemical adsorption dominates the adsorption process.
Topics & Concepts
ChemistryCadmiumMetal ions in aqueous solutionMetalHeavy metalsPorosityContaminationContaminated waterNuclear chemistryEnvironmental chemistryOrganic chemistryEcologyBiologyMetal-Organic Frameworks: Synthesis and ApplicationsAdsorption and biosorption for pollutant removalHydrogels: synthesis, properties, applications