Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies
Electrocoagulation (EC) was used for the removal of anthraquinone dye, Alizarin Red S (ARS) from aqueous solution, the process was carried out in a batch electrochemical cell with Al electrodes in monopolar connection. The effects of some important parameters such as current density, pH, temperature...
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| Format: | Article |
| Language: | English |
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International Association of Physical Chemists (IAPC)
2016-06-01
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| Series: | Journal of Electrochemical Science and Engineering |
| Online Access: | http://pub.iapchem.org/ojs/index.php/JESE/article/view/290 |
| _version_ | 1818318666290167808 |
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| author | Abideen Idowu Adeogun Ramesh Babu Balakrishnan |
| author_facet | Abideen Idowu Adeogun Ramesh Babu Balakrishnan |
| author_sort | Abideen Idowu Adeogun |
| collection | DOAJ |
| description | Electrocoagulation (EC) was used for the removal of anthraquinone dye, Alizarin Red S (ARS) from aqueous solution, the process was carried out in a batch electrochemical cell with Al 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 minutes at 30 oC. Pseudo-first-order, pseudo-second-order, Elovic, and Avrami kinetic models were used to test the experimental data in order to elucidate the kinetic of the electrocoagulation process; pseudo-first-order and Avrami models best fitted the data. Experimental data were analyzed using six isotherm models: Langmuir, Freudlinch, Redlich–Peterson, Temkin, Dubinin–Radushkevich and Sips isotherms and it was found that the data fitted well with Dubinin–Radushkevich and Sips isotherm model. The study showed that the process depend on current density, temperature, pH and initial dye concentration. The calculated thermodynamics parameters (∆Go, ∆Ho and ∆So) indicated that the process is spontaneous and endothermic in nature. |
| first_indexed | 2024-12-13T09:56:51Z |
| format | Article |
| id | doaj.art-d4be131cdcc841fb8bc21c7e66c39c55 |
| institution | Directory Open Access Journal |
| issn | 1847-9286 |
| language | English |
| last_indexed | 2024-12-13T09:56:51Z |
| publishDate | 2016-06-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj.art-d4be131cdcc841fb8bc21c7e66c39c552022-12-21T23:51:45ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862016-06-016210.5599/jese.290205Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studiesAbideen Idowu Adeogun0Ramesh Babu Balakrishnan1Chemistry Department Federal University of Agriculture, Abeokuta and Electrochemical Pollution Control Division, CSIR - Central Electrochemical Research Institute. Karaikudi 630006Electrochemical Pollution Control Division, CSIR - Central Electrochemical Research Institute. Karaikudi 630006Electrocoagulation (EC) was used for the removal of anthraquinone dye, Alizarin Red S (ARS) from aqueous solution, the process was carried out in a batch electrochemical cell with Al 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 minutes at 30 oC. Pseudo-first-order, pseudo-second-order, Elovic, and Avrami kinetic models were used to test the experimental data in order to elucidate the kinetic of the electrocoagulation process; pseudo-first-order and Avrami models best fitted the data. Experimental data were analyzed using six isotherm models: Langmuir, Freudlinch, Redlich–Peterson, Temkin, Dubinin–Radushkevich and Sips isotherms and it was found that the data fitted well with Dubinin–Radushkevich and Sips isotherm model. The study showed that the process depend on current density, temperature, pH and initial dye concentration. The calculated thermodynamics parameters (∆Go, ∆Ho and ∆So) indicated that the process is spontaneous and endothermic in nature.http://pub.iapchem.org/ojs/index.php/JESE/article/view/290 |
| spellingShingle | Abideen Idowu Adeogun Ramesh Babu Balakrishnan Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies Journal of Electrochemical Science and Engineering |
| title | Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies |
| title_full | Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies |
| title_fullStr | Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies |
| title_full_unstemmed | Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies |
| title_short | Electrocoagulation removal of anthraquinone dye Alizarin Red S from aqueous solution using aluminum electrodes: kinetics, isothermal and thermodynamics studies |
| title_sort | electrocoagulation removal of anthraquinone dye alizarin red s from aqueous solution using aluminum electrodes kinetics isothermal and thermodynamics studies |
| url | http://pub.iapchem.org/ojs/index.php/JESE/article/view/290 |
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