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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Yahiaoui, Idris
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Publications (5/5 displayed)
- 2023Application of central composite design and response surface methodology for the study of extraction of gentian violet dye in aqueous solution by polystyrene membrane modified with oleic acidcitations
- 2014Heat Attachment Method for the Immobilization of TiO2 on Glass Plates: Application to Photodegradation of Basic Yellow Dye and Optimization of Operating Parameters, Using Response Surface Methodologycitations
- 2013Removal of tetracycline hydrochloride from water based on direct anodic oxidation (Pb/PBO2 electrode) coupled to activated sludge culturecitations
- 2013Combination of an electrochemical pretreatment with a biological oxidation for the mineralization of nonbiodegradable organic dyes: Basic yellow 28 dyecitations
- 2012Response surface methodology for the optimization of the electrochemical degradation of phenol on Pb/PbO2 electrode.citations
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article
Application of central composite design and response surface methodology for the study of extraction of gentian violet dye in aqueous solution by polystyrene membrane modified with oleic acid
Abstract
<jats:title>Abstract</jats:title><jats:p>The present study is interested in removal of a cationic dye gentian violet (GV) using a polystyrene membrane (PS) activated with oleic acid (OA). These innovative membranes were developed by using PS as the base polymer and OA as extractant. The best matrix obtained was characterized by using Fourier transform infrared spectroscopy (FTIR) and x‐ray diffraction (XRD), and then applied in the extraction of a cationic GV dye. The effects of an extraction ratio (OA/PS) in the PS‐AO matrix, initial GV dye concentration ([GV]<jats:sub>0</jats:sub>), and pH of the solution were studied in a batch reactor. The thermodynamic parameters (, , and ) have been calculated. Therefore, the GV extraction onto the PS‐OA matrix is an exothermic and spontaneous process. In addition, the slop method confirms that the chemical formula of the extracted OA‐GV complex is GV‐RHR. The central composite design (CCD) was used to determine the conditions of each experimental run, and extraction optimization was achieved using response surface methodology (RSM). The results showed that the quadratic regression model was statistically significant (0.9994), and the parameters studied had a profound effect on the extraction efficiency. The optimum GV extraction efficiency of 99% was achieved at an extractant ratio of 1, pH of 8, and [GV]<jats:sub>0</jats:sub> of 10 mg L<jats:sup>−1</jats:sup>. The findings of the current study reveal that PS‐AO matrix is an advantageous and effective membrane for the extraction of GV from aqueous solutions, both environmentally and economically, it can be regenerated and used up to five times.</jats:p>