Azo-functionalized superparamagnetic Fe<sub>3</sub>O<sub>4</sub> nanoparticles: an efficient adsorbent for the removal of bromocresol green from contaminated water
Hadeel Saad, F. A. Nour El‐Dien, Nadia E. A. El‐Gamel, Ahmed S. Abo Dena
Abstract
a physisorption mechanism and followed a pseudo-second-order rate kinetics. Thermodynamic studies revealed that the adsorption process is enthalpy driven by hydrogen bonding and/or van der Waals interactions. After treating water samples with the suggested adsorbent, it can be easily removed from water using a strong external magnetic field.
Topics & Concepts
AdsorptionPhysisorptionSuperparamagnetismChemistryBromocresol greenDynamic light scatteringChemical engineeringMagnetic nanoparticlesMethyl blueLangmuir adsorption modelNuclear chemistryNanoparticleAnalytical Chemistry (journal)Inorganic chemistryMaterials scienceOrganic chemistryNanotechnologyPhotocatalysisCatalysisMagnetizationMagnetic fieldEngineeringQuantum mechanicsPhysicsNanomaterials for catalytic reactionsAdsorption and biosorption for pollutant removal