Adsorption study of malachite green dye on to cadmium oxide surface (thermodynamic and kinetic)
Joint Authors
Abd al-Azim, Adra
Abd al-Husayn, Dua
Source
Journal of Kufa for Chemical Science
Issue
Vol. 2, Issue 3 (31 Dec. 2017), pp.96-111, 16 p.
Publisher
University of Kufa Faculty of Education for Women Department of Chemistry
Publication Date
2017-12-31
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Topics
Abstract EN
The subject of the research is the study of adsorption of pigment dye malachite on to Metal oxide.
One of these is metal oxides, cadmium oxide, was chosen as the adsorbents of this dye In the thermal range from 298K to 328K.
The study included the test of applying the isotherm models of Langmuir, Freundlich, Elovich and Temkin to the practical adsorption data of the dye under study using the UV spectroscopy.
The test results gave linear relations and good correlation coefficients, specifically Temkin and Freundlich .isotherm.
The kinetic data were modeled by using pseudo-first-order, pseudo-second-order, Elovich and intra-particle diffusion kinetics equations, The pseudo-second-order and intra-particle diffusion kinetic model was found to correlate with the experimental data well for the dye.
Adsorption adsorbents were also used to obtain the values of the thermodynamic functions (Free energy ΔG, enthalpy ΔH and ΔS entropy) within the experimental thermal range (328-298K) based on the calculation of the values of the equilibrium constant (Keq).
The results indicated that adsorption is endothermic and physical and that entropy increases with increasing temperature and that the reaction is spontaneous in experimental conditions.
American Psychological Association (APA)
Abd al-Azim, Adra& Abd al-Husayn, Dua. 2017. Adsorption study of malachite green dye on to cadmium oxide surface (thermodynamic and kinetic). Journal of Kufa for Chemical Science،Vol. 2, no. 3, pp.96-111.
https://search.emarefa.net/detail/BIM-903503
Modern Language Association (MLA)
Abd al-Azim, Adra& Abd al-Husayn, Dua. Adsorption study of malachite green dye on to cadmium oxide surface (thermodynamic and kinetic). Journal of Kufa for Chemical Science Vol. 2, no. 3 (Dec. 2017), pp.96-111.
https://search.emarefa.net/detail/BIM-903503
American Medical Association (AMA)
Abd al-Azim, Adra& Abd al-Husayn, Dua. Adsorption study of malachite green dye on to cadmium oxide surface (thermodynamic and kinetic). Journal of Kufa for Chemical Science. 2017. Vol. 2, no. 3, pp.96-111.
https://search.emarefa.net/detail/BIM-903503
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 111
Record ID
BIM-903503