Evaluation of the methyl violet sorption capacity in waters with a bentonite based geopolymer material

J. A. López, A. M. Montao, C. P. González, L. Medina

    Producción científica: Contribución a una revistaPonencia publicada en las memorias del evento con ISSNrevisión exhaustiva

    Resumen

    In this study, bentonite geopolymer was used as a sorbent to remove methyl violet in aqueous solutions. Several parameters such as pH, sorbent dose and initial sorbate concentration were evaluated. The greater sorption effectiveness of bentonite geopolymer is observed at pH 2-3, and the greater sorption capacity of methyl violet by bentonite geopolymer occurs when the sorbent/sorbate ratio decreases. The study of sorption kinetics showed that the data fit the pseudo-second order model, where much of the sorption occurs during the first hour of contact, it was shown that the process prefers diffusion between pores. Sorption was adjusted to the isotherm of Langmuir, which indicated that the sorption is preferentially in monolayer. bentonite geopolymer proved to be an excellent candidate for removal of methyl violet in aqueous bodies.

    Idioma originalInglés
    Número de artículo012006
    PublicaciónJournal of Physics: Conference Series
    Volumen1587
    N.º1
    DOI
    EstadoPublicada - 5 ago. 2020
    Evento6th International Week of Science, Technology and Innovation, IWSTI 2019 - San Jose de Cucuta, Colombia
    Duración: 19 nov. 201922 nov. 2019

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    © 2020 Published under licence by IOP Publishing Ltd.

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