Removal of bentazone using activated carbon from spent coffee grounds
Bianca Caroline da Silva Rocha,
Luiz Eduardo Zani de Moraes,
Diego Espirito Santo
et al.
Abstract:BACKGROUNDThis study aimed to produce activated carbon from spent coffee (Coffea arabica) grounds by chemical activation using zinc chloride and nitric acid to remove bentazone from aqueous solutions.RESULTSThe fresh spent coffee grounds were characterized by Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and the activated carbon by X‐ray Diffraction (XRD), Infrared Spectroscopy (FT‐IR), Brunauer–Emmett– Teller (BET), point of zero charge, scanning electron microscopy (SEM), and Boe… Show more
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