Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes
Magnetic Graphene Oxide-Semicarbazide (MGO-Se) was successfully fabricated and, as a new adsorbent was used for simultaneous ultrasound-assisted adsorption of Sunset Yellow (SY) and Tartrazine (Tar) dyes from aqueous samples. The characterizations of MGO-Se were studied by Scanning Electron Microsco...
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Elsevier
2024-01-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624003138 |
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| author | Margan Qaed Amini Farsani Shahla Elhami |
| author_facet | Margan Qaed Amini Farsani Shahla Elhami |
| author_sort | Margan Qaed Amini Farsani |
| collection | DOAJ |
| description | Magnetic Graphene Oxide-Semicarbazide (MGO-Se) was successfully fabricated and, as a new adsorbent was used for simultaneous ultrasound-assisted adsorption of Sunset Yellow (SY) and Tartrazine (Tar) dyes from aqueous samples. The characterizations of MGO-Se were studied by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Fourier-Transform Infrared spectroscopy (FT-IR). A spectrum overlapping of SY and Tar was resolved by the derivative spectrophotometric technique. The effects of variables on the removal of the dye such as pH, the dose of MGO-Se, sonication time, and initial dye concentration were studied and optimized. Under the optimized condition, the removal efficiencies were obtained by more than 92% and 91% for SY and Tar dyes (with a concentration of 50 mg L−1 for each dye), respectively. The adsorbent was successfully reused 8 times with very little change in the adsorption efficiency, which indicates that it is highly reusable. The experimental equilibrium data of SY and Tar onto MGO-Se was utilized to compare nonlinear and linear isotherm and kinetics models for parameter determination. The best models for fitting equilibrium data were Linear Langmuir and nonlinear pseudo-second-order models with lower error functions. Thermodynamic parameters predicted the exothermic nature, spontaneity, and feasibility of the adsorption process. The absorbent had a greater ability to remove dyes from real samples. |
| format | Article |
| id | doaj-art-8c6ec34baf474e8bba9df7fbe0a43fb9 |
| institution | DOAJ |
| issn | 1944-3986 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-8c6ec34baf474e8bba9df7fbe0a43fb92025-08-20T03:11:30ZengElsevierDesalination and Water Treatment1944-39862024-01-0131710028010.1016/j.dwt.2024.100280Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyesMargan Qaed Amini Farsani0Shahla Elhami1Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, IranCorresponding author.; Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, IranMagnetic Graphene Oxide-Semicarbazide (MGO-Se) was successfully fabricated and, as a new adsorbent was used for simultaneous ultrasound-assisted adsorption of Sunset Yellow (SY) and Tartrazine (Tar) dyes from aqueous samples. The characterizations of MGO-Se were studied by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Fourier-Transform Infrared spectroscopy (FT-IR). A spectrum overlapping of SY and Tar was resolved by the derivative spectrophotometric technique. The effects of variables on the removal of the dye such as pH, the dose of MGO-Se, sonication time, and initial dye concentration were studied and optimized. Under the optimized condition, the removal efficiencies were obtained by more than 92% and 91% for SY and Tar dyes (with a concentration of 50 mg L−1 for each dye), respectively. The adsorbent was successfully reused 8 times with very little change in the adsorption efficiency, which indicates that it is highly reusable. The experimental equilibrium data of SY and Tar onto MGO-Se was utilized to compare nonlinear and linear isotherm and kinetics models for parameter determination. The best models for fitting equilibrium data were Linear Langmuir and nonlinear pseudo-second-order models with lower error functions. Thermodynamic parameters predicted the exothermic nature, spontaneity, and feasibility of the adsorption process. The absorbent had a greater ability to remove dyes from real samples.http://www.sciencedirect.com/science/article/pii/S1944398624003138AdsorptionGraphene oxideMagnetic separationSunset YellowTartrazine |
| spellingShingle | Margan Qaed Amini Farsani Shahla Elhami Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes Desalination and Water Treatment Adsorption Graphene oxide Magnetic separation Sunset Yellow Tartrazine |
| title | Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes |
| title_full | Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes |
| title_fullStr | Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes |
| title_full_unstemmed | Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes |
| title_short | Modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of Sunset Yellow and Tartrazine dyes |
| title_sort | modified graphene oxide as an efficient magnetic adsorbent for the simultaneous removal of sunset yellow and tartrazine dyes |
| topic | Adsorption Graphene oxide Magnetic separation Sunset Yellow Tartrazine |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624003138 |
| work_keys_str_mv | AT marganqaedaminifarsani modifiedgrapheneoxideasanefficientmagneticadsorbentforthesimultaneousremovalofsunsetyellowandtartrazinedyes AT shahlaelhami modifiedgrapheneoxideasanefficientmagneticadsorbentforthesimultaneousremovalofsunsetyellowandtartrazinedyes |