Kinetics, isothermal and thermodynamics studies of electrocoagulation removal of basic dye rhodamine B from aqueous solution using steel electrodes

被引：56

作者：

Adeogun A.I. ^{[1
,2
]}

Balakrishnan R.B. ^{[2
]}

机构：

[1] Department of Chemistry, Federal University of Agriculture, Abeokuta

[2] Electrochemical Pollution Control Division, CSIR-Central Electrochemical Research Institute, Karaikudi

来源：

Adeogun, Abideen Idowu (abuaisha2k3@yahoo.com) | 1711年 / Springer Verlag卷 / 07期

关键词：

Electrocoagulation; Isotherms; Kinetics; Rhodamine B; Steel electrodes; Thermodynamics;

D O I：

10.1007/s13201-015-0337-4

中图分类号：

学科分类号：

摘要：

Electrocoagulation was used for the removal of basic dye rhodamine B from aqueous solution, and the process was carried out in a batch electrochemical cell with steel electrodes in monopolar connection. The effects of some important parameters such as current density, pH, temperature and initial dye concentration, on the process, were investigated. Equilibrium was attained after 10 min at 30 °C. Pseudo-first-order, pseudo-second-order, Elovich and Avrami kinetic models were used to test the experimental data in order to elucidate the kinetic adsorption process; pseudo-first-order and Avrami models best fitted the data. Experimental data were analysed using six model equations: Langmuir, Freudlinch, Redlich–Peterson, Temkin, Dubinin–Radushkevich and Sips isotherms and it was found that the data fitted well with Sips isotherm model. The study showed that the process depends on current density, temperature, pH and initial dye concentration. The calculated thermodynamics parameters (ΔG∘,ΔH∘andΔS∘) indicated that the process is spontaneous and endothermic in nature. © 2015, The Author(s).

引用

页码：1711 / 1723

页数：12

共 40 条

[1]

Adeogun A.I., Bello O.S., Adeboye M.D., Biosorption of lead ions on biosorbent prepared from plumb shells (Spondias mombin): kinetics and equilibrium studies, Pak J Sci Ind Res, 53, pp. 246-251, (2010)

[2]

Adeogun A.I., Ofudje A.E., Idowu M.A., Kareem S.O., Equilibrium, kinetics, and thermodynamics studies of the biosorption of Mn(II) ions from aqueous solution by raw and acid-treated corncob biomass, BioResources, 6, pp. 4117-4134, (2011)

[3]

Adeogun A.I., Kareem S.O., Durosanya J.B., Balogun S.E., Kinetics and equilibrium parameters of biosorption and bioaccumulation of lead ions from aqueous solutions by Trichoderma longibrachiatum, J Microbiol Biotechnol Food Sci, 1, pp. 1221-1234, (2012)

[4]

Aleboyeh A., Daneshvar N., Kasiri M.B., Optimization of C.I. acid red-14 azo dye removal by electrocoagulation batch process with response surface methodology, Chem Eng Process, 47, pp. 827-832, (2008)

[5]

Ali M., Sreekrishnan T.R., Aquatic toxicity from pulp and paper mill effluents—a review, Adv Environ Res, 5, pp. 175-196, (2001)

[6]

Amini M., Younesi H., Bahramifar N., Lorestani A.A., Ghorbani F., Daneshi A., Sharifzadeh M., Application of response surface methodology for optimization of lead biosorption in an aqueous solution by Aspergillus niger, J Hazard Mater, 154, pp. 694-702, (2008)

[7]

Aniruldhan T.S., Radhakrishnan P.G., Thermodynamics and kinetics of adsorption of Cu (II) from aqueous solutions onto a new cation exchanger derived from tamarind fruit shell, J Chem Thermodyn, 40, pp. 702-709, (2008)

[8]

Avrami M., Kinetics of phase change: transformation-time relations for random distribution of nuclei, J Chem Phys, 8, pp. 212-224, (1940)

[9]

Bello O.S., Adeogun A.I., Ajaelu J.C., Fehintola E.O., Adsorption of methylene blue onto activated carbon derived from periwinkle shells: kinetics and equilibrium studies, Chem Ecol, 24, pp. 285-295, (2008)

[10]

Carneiro P.A., Osugi M.E., Fugivar C.S., Boralle N., Furlan M., Zanoni M.V., Evaluation of different electrochemical methods on the oxidation and degradation of Reactive Blue 4 in aqueous solution, Chemosphere, 59, 3, pp. 431-439, (2005)

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