Síntesis y caracterización de SrFe12O19/CoFe2O4 para la adsorción de cromo(VI) en soluciones acuosas
DOI:
https://doi.org/10.65093/aci.v17.n2.2026.53Palabras clave:
hexaferrita, materiales magnéticos, compósitos, remociónResumen
En este trabajo se sintetizó un compósito magnético de hexaferrita de estroncio (SrFe12O19) con ferrita de cobalto (CoFe2O4), mediante la metodología del complejo polimérico (Pechini), con la finalidad de remover cromo (VI) en agua contaminada. La caracterización estructural, morfología y química se realizaron mediante difracción de rayos X (DRX) y espectroscopía electrónica de barrido (SEM); la medición de los sitios activos se realizó mediante el método de titulación de Boehm, y el punto isoeléctrico (IEP) se determinó mediante el potencial zeta. Los experimentos de adsorción se llevaron a cabo a pH 2, con concentraciones de Cr(VI) de 10 a 100 mg/L. Los resultados muestran que el tamaño de partícula del compósito es de 251 nm y la proporción de la mezcla es 1:1, mientras que la capacidad máxima de adsorción experimental de Cr(VI) fue de 19.72 mg/g, mientras que el modelo de Langmuir predice una capacidad de adsorción teórica de 69.29 mg/g. Debido a su alta capacidad de adsorción, sus excelentes propiedades magnéticas (que facilitan su recuperación) y sus bajos costos de producción, este material constituye una opción prometedora para la eliminación del cromo (VI) del agua contaminada.
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