Adsorption of N,N-dimethylamine from aqueous solutions by a metal organic framework, MOF–235

Rodrigo Beltrán-Suito, Angela Pinedo-Flores, Fabiola Bravo-Hualpa, Jorge Ramos-Muñoz, M. R. Sun Kou

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12 Scopus citations

Abstract

Water-resistant MOF-235 was used to adsorb N,N-dimethylamine (DMA) from aqueous solutions. It was synthesized from terephthalic acid and FeCl 3 .6H 2 O under air-free conditions and characterized by its crystalline structure, functional groups and temperature resistance. The kinetic data results were best adjusted to the pseudo-second order model (R 2 >0.963). The best-fit isotherm, Langmuir model, suggested the adsorption of DMA is localized on homogenously distributed active sites on the surface. This fit was confirmed by the value of β = 1 on the Redlich-Peterson model. Our study suggests that the manipulation of novel materials such as MOF-235 promises new avenues for water treatment solutions. Schematic structure of MOF-235 and its application as adsorbent.
Original languageSpanish
Pages (from-to)901-908
Number of pages8
JournalJournal of Dispersion Science and Technology
Volume40
StatePublished - 3 Jun 2019

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