Adsorption Behavior of Pb(II), Cd(II), and Zn(II) onto Agave Bagasse, Characterization, and Mechanism
Diana Cholico-González, Noemí Ortiz Lara, Ana María Fernández Macedo, Jorge Chavez Salas
Abstract
C cross-polarization mode with magic-angle spinning nuclear magnetic resonance analysis demonstrated a complexation mechanism by cellulose, hemicellulose, and lignin groups with Pb(II) and Cd(II), whereas the complexation is mainly observed by cellulose groups for Zn(II). AB is a good alternative for the removal of metals without prior thermal or chemical treatment, with rapid kinetics, suitable adsorption capacity, and high removal efficiency contributing to waste management.
Topics & Concepts
AdsorptionChemistryBiosorptionNuclear chemistryLangmuir adsorption modelMagic angle spinningAqueous solutionCelluloseMetal ions in aqueous solutionIon exchangeHemicelluloseBagasseMetalIonNuclear magnetic resonance spectroscopyStereochemistryOrganic chemistrySorptionBiologyEcologyAdsorption and biosorption for pollutant removal