The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies
Edible colors are materials which in the case of adding to food and drinks cause transferring color to them. Most of these colors are not acceptable in terms of applying in human food and underlies various diseases like gastrointestinal disorders, renal, liver and blood toxicity. The goal of this st...
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Islamic Azad University, Tabriz Branch
2017-11-01
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| Series: | Bihdāsht-i Mavādd-i Ghaz̠āyī |
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| Online Access: | http://jfh.iaut.ac.ir/article_535593_e88b5a73e6bcc75116a32a0e3fb2d2f5.pdf |
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| author | A. Parchebaf Jadid S. Sadeghi |
| author_facet | A. Parchebaf Jadid S. Sadeghi |
| author_sort | A. Parchebaf Jadid |
| collection | DOAJ |
| description | Edible colors are materials which in the case of adding to food and drinks cause transferring color to them. Most of these colors are not acceptable in terms of applying in human food and underlies various diseases like gastrointestinal disorders, renal, liver and blood toxicity. The goal of this study was investigating the efficiency of improved alumina by sodium dodecyl sulfate (SDS) in eliminating Tartrazine from aqueous environments. In this research, the impact of effective parameters such as initial concentration of Tartrazine, time, pH, alumina dose and SDS value were studied in order to approach an optimal condition for eliminating the color. Also, absorption behavior was evaluated by Freundlich and Langmuir isotherms. The highest efficiency of Tartrazine elimination in the solution resulted in optimal pH of 2, the amount of adsorbent 1.5 g/L, 16 min duration and value 0.04 SDS g/l which was obtained for dye concentration 5 mg/L about 94.13%. Also, results suggested that Tartrazine absorption follows Langmuir isotherm (R2 = 0.9867). Obtained results from thermodynamic studies such as Gibbs free energy (-5.728 Kj/mol) and enthalpy (-85.86 Kj/mol) and entropy (-271.102 J/mol.K) also suggested that the absorption process was exothermic. The results of this research suggested that improved alumina by sodium dodecyl sulfate had a relative good capability in Tartrazine elimination from aqueous environments. Thus |
| first_indexed | 2024-12-11T01:18:01Z |
| format | Article |
| id | doaj.art-c1f0b9f16f184ec3b4f553445858c0f0 |
| institution | Directory Open Access Journal |
| issn | 2228-7647 2476-6968 |
| language | fas |
| last_indexed | 2024-12-11T01:18:01Z |
| publishDate | 2017-11-01 |
| publisher | Islamic Azad University, Tabriz Branch |
| record_format | Article |
| series | Bihdāsht-i Mavādd-i Ghaz̠āyī |
| spelling | doaj.art-c1f0b9f16f184ec3b4f553445858c0f02022-12-22T01:25:48ZfasIslamic Azad University, Tabriz BranchBihdāsht-i Mavādd-i Ghaz̠āyī2228-76472476-69682017-11-0173 (27) پاییز2535535593The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studiesA. Parchebaf Jadid0S. Sadeghi1Assistant Professor of Department of Chemistry, Ardabil Branch, Islamic Azad University, Ardabil, IranM.Sc Graduate in Chemistry, Ardabil Branch, Islamic Azad University, Ardabil, IranEdible colors are materials which in the case of adding to food and drinks cause transferring color to them. Most of these colors are not acceptable in terms of applying in human food and underlies various diseases like gastrointestinal disorders, renal, liver and blood toxicity. The goal of this study was investigating the efficiency of improved alumina by sodium dodecyl sulfate (SDS) in eliminating Tartrazine from aqueous environments. In this research, the impact of effective parameters such as initial concentration of Tartrazine, time, pH, alumina dose and SDS value were studied in order to approach an optimal condition for eliminating the color. Also, absorption behavior was evaluated by Freundlich and Langmuir isotherms. The highest efficiency of Tartrazine elimination in the solution resulted in optimal pH of 2, the amount of adsorbent 1.5 g/L, 16 min duration and value 0.04 SDS g/l which was obtained for dye concentration 5 mg/L about 94.13%. Also, results suggested that Tartrazine absorption follows Langmuir isotherm (R2 = 0.9867). Obtained results from thermodynamic studies such as Gibbs free energy (-5.728 Kj/mol) and enthalpy (-85.86 Kj/mol) and entropy (-271.102 J/mol.K) also suggested that the absorption process was exothermic. The results of this research suggested that improved alumina by sodium dodecyl sulfate had a relative good capability in Tartrazine elimination from aqueous environments. Thushttp://jfh.iaut.ac.ir/article_535593_e88b5a73e6bcc75116a32a0e3fb2d2f5.pdfTartrazineAluminaSodium Dodecyl SulfateLangmuirThermodynamic parameters |
| spellingShingle | A. Parchebaf Jadid S. Sadeghi The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies Bihdāsht-i Mavādd-i Ghaz̠āyī Tartrazine Alumina Sodium Dodecyl Sulfate Langmuir Thermodynamic parameters |
| title | The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies |
| title_full | The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies |
| title_fullStr | The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies |
| title_full_unstemmed | The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies |
| title_short | The removal of Tartrazine dye by modified Alumina with sodium dodecyl sulfate from aqueous solutions: equilibrium and thermodynamic studies |
| title_sort | removal of tartrazine dye by modified alumina with sodium dodecyl sulfate from aqueous solutions equilibrium and thermodynamic studies |
| topic | Tartrazine Alumina Sodium Dodecyl Sulfate Langmuir Thermodynamic parameters |
| url | http://jfh.iaut.ac.ir/article_535593_e88b5a73e6bcc75116a32a0e3fb2d2f5.pdf |
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