Fullerenes and tree-shaped/fingerprinted carbon quantum dots for chromium adsorption <i>via</i> microwave-assisted synthesis
Hebat‐Allah S. Tohamy, Mohamed El‐Sakhawy, Samir Kamel
Abstract
: Both samples demonstrated rapid Cr(vi) uptake; TF-CQDs reached equilibrium within 120 minutes compared to 240 minutes for F. Subsequent leaching led to decreased adsorption after these initial periods. Kinetic analysis revealed a first-order model for TF-CQDs, implying physical adsorption dominance. Conversely, F exhibited a better fit to pseudo-first and second-order models, suggesting combined chemical and physical mechanisms.
Topics & Concepts
FullereneFormamideCarboxymethyl celluloseChromiumCitric acidAdsorptionCarbon fibersCelluloseMaterials scienceCarbon quantum dotsDimethyl formamideChemical engineeringTree (set theory)Quantum dotChemistryOrganic chemistryNanotechnologyComposite materialSolventMathematicsComposite numberSodiumEngineeringMathematical analysisCarbon and Quantum Dots ApplicationsNanomaterials for catalytic reactionsGraphene and Nanomaterials Applications