Development of Adsorbent Materials Using Residue from Coffee Industry and Application in Food dye Adsorption Processes
Luiz Eduardo Nochi Castro, Débora Alessandra Jones Battocchio, Leomara Floriano Ribeiro, Leda Maria Saragiotto Colpini
Abstract
HIGHLIGHTS The adsorbent activated with H2PO4 removed around 100% of Ponceau 4R dye. The increase in temperature influenced the increase in maximum adsorptive capacity. Langmuir's isotherm was better suited to the experimental data of the Ponceau 4R dye.
Topics & Concepts
AdsorptionResidue (chemistry)Langmuir adsorption modelChemical engineeringChemistrySorption isothermChromatographyLangmuirMaterials scienceOrganic chemistryEngineeringSpectroscopy and Chemometric AnalysesDye analysis and toxicityWater Quality Monitoring and Analysis