Open AccessAdsorción del naranja de metilo en solución acuosa sobre hidróxidos dobles laminares
Author(s) -
Laura Alicia Ramírez Llamas,
Araceli Jacobo Azuara,
J. Merced Martínez Rosales
Publication year - 2015
Publication title -
acta universitaria
Language(s) - English
Resource type - Journals
eISSN - 2007-9621
pISSN - 0188-6266
DOI - 10.15174/au.2015.778
Subject(s) - adsorption , methyl orange , physisorption , chemistry , nuclear chemistry , isothermal microcalorimetry , desorption , orange (colour) , enthalpy , organic chemistry , catalysis , physics , food science , photocatalysis , quantum mechanics
In this paper, layered double hydroxides (LDH) were synthesized and characterized using techniques of Physisorption of Nitrogen, Infrared, Temperature Programmed Desorption, X-Ray Diffraction, TGA and Immersion Microcalorimetry, in order to determine the basic properties of the adsorbent. The methyl orange (MO) is used as a dye and as a result, it is frequently found in effluents from textile industries. The dye adsorption isotherms on LDH were studied as function of pH and temperature. The maximum adsorption capacity of methyl orange on LDH was carried out at pH 5, and the minimum adsorption capacity at pH 11, being 40.2 mg/g and 22.1 mg/g, respectively. Furthermore, the suitable temperature to promote the adsorption of methyl orange on LDH was at 25 °C, as at 35 °C shows a significant decrease.