Open AccessInfluence of Acid Activation of a Mixture of Illite, Koalinite, and Chlorite Clays on the Adsorption of Methyl Violet 6B Dye
Author(s) -
Saba Adel Saed,
Dunya Edan Al-Mammar
Publication year - 2021
Publication title -
iraqi journal of science
Language(s) - English
Resource type - Journals
eISSN - 2312-1637
pISSN - 0067-2904
DOI - 10.24996/ijs.2021.62.6.2
Subject(s) - adsorption , freundlich equation , illite , kaolinite , chemistry , langmuir , ionic strength , chlorite , methyl violet , scanning electron microscope , nuclear chemistry , inorganic chemistry , chemical engineering , mineralogy , clay minerals , materials science , organic chemistry , metallurgy , composite material , aqueous solution , quartz , engineering
The influence of acid activation of a mixture of illite, kaolinite, and chlorite clays collected from the area of Zorbatiya (east of Iraq) on the adsorption of methyl violet 6B (MV6B) as a cationic dye was studied. The activation was carried out by using 0.25M HCl and 0.25M . Raw and acid-activated clays were analyzed by atomic force microscopy (AFM), scanning electron microscopy (SEM), and X-ray diffraction (XRD).
Batch adsorption method was used to study the adsorption of MV6B onto the raw and acid activated clays. The impacts of different factors on the adsorption process were studied, such as clay weight, agitation time, starting MV6B concentration, temperature, ionic strength, and solution pH. The adsorption process was described by using Langmuir, Freundlich, Temkin, and Dubinin- Radushkevich isotherm models. Thermodynamic parameters like were estimated based on Vanʼt Hoff equation.