Synthesis, characterization and application of new adsorbent composites based on sol-gel/chitosan for the removal of soluble substance in water
Jonatan Rafael de Mello, Thaís Strieder Machado, Larissa Crestani, Ingridy Alessandretti, Giovana Marchezi, Flávia Melara, Marcelo Luís Mignoni, Jeferson Steffanello Piccin
Abstract
/g. The application of the composites in the model system (TY - Tartrazine yellow dye), presented adsorption capacities dependent on the amount of chitosan in the composite (40%Chi > 30%Chi > 20%Chi). However, from the experimental data of the constituent materials, 30%Chi provided the greatest increase in the adsorption capacity in the monolayer, with values of 36%. This demonstrates that the amount of chitosan in the compound alters the arrangement of adsorption sites. The 30%Chi composite presented life cycle superior to 10 reuse cycles.
Topics & Concepts
Tetraethyl orthosilicateChitosanAdsorptionComposite numberMaterials scienceComposite materialTartrazineMonolayerSol-gelChemical engineeringChemistryOrganic chemistryNanotechnologyChromatographyEngineeringAdsorption and biosorption for pollutant removalElectrochemical sensors and biosensors