Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions
Dyes are one of the most hazardous chemical compound classes found in industrial effluents and need to be treated since their presence in water bodies reduces light penetration, precluding the photosynthesis of aqueous flora. In the present study, single-walled carbon nanotubes (SWCNTs) was used as...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/938374 |
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| author | Edris Bazrafshan Ferdos Kord Mostafapour Ali Reza Hosseini Ataolah Raksh Khorshid Amir Hossein Mahvi |
| author_facet | Edris Bazrafshan Ferdos Kord Mostafapour Ali Reza Hosseini Ataolah Raksh Khorshid Amir Hossein Mahvi |
| author_sort | Edris Bazrafshan |
| collection | DOAJ |
| description | Dyes are one of the most hazardous chemical compound classes found in industrial effluents and need to be treated since their presence in water bodies reduces light penetration, precluding the photosynthesis of aqueous flora. In the present study, single-walled carbon nanotubes (SWCNTs) was used as an adsorbent for the successful removal of Reactive Red 120 (RR-120) textile dye from aqueous solutions. The effect of various operating parameters such as initial concentration of dye, contact time, adsorbent dosage and initial pH was investigated in order to find the optimum adsorption conditions. Equilibrium isotherms were used to identify the possible mechanism of the adsorption process. The optimum pH for removing of RR-120 dye from aqueous solutions was found to be 5 and for this condition maximum predicted adsorption capacity for RR-120 dye was obtained as 426.49 mg/g. Also, the equilibrium data were also fitted to the Langmuir, Freundlich and BET equilibrium isotherm models. It was found that the data fitted to BET (R2=0.9897) better than Langmuir (R2=0.9190) and Freundlich (R2=0.8819) model. Finally it was concluded that the single-walled carbon nanotubes can be used for dye removal from aqueous solutions. |
| format | Article |
| id | doaj-art-7b54724a0bbd44c88cd02f17cb36865f |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-7b54724a0bbd44c88cd02f17cb36865f2025-02-03T05:47:58ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/938374938374Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous SolutionsEdris Bazrafshan0Ferdos Kord Mostafapour1Ali Reza Hosseini2Ataolah Raksh Khorshid3Amir Hossein Mahvi4Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, IranHealth Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, IranHealth Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, IranHealth Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, IranSchool of Public Health, Tehran University of Medical Sciences, Tehran, IranDyes are one of the most hazardous chemical compound classes found in industrial effluents and need to be treated since their presence in water bodies reduces light penetration, precluding the photosynthesis of aqueous flora. In the present study, single-walled carbon nanotubes (SWCNTs) was used as an adsorbent for the successful removal of Reactive Red 120 (RR-120) textile dye from aqueous solutions. The effect of various operating parameters such as initial concentration of dye, contact time, adsorbent dosage and initial pH was investigated in order to find the optimum adsorption conditions. Equilibrium isotherms were used to identify the possible mechanism of the adsorption process. The optimum pH for removing of RR-120 dye from aqueous solutions was found to be 5 and for this condition maximum predicted adsorption capacity for RR-120 dye was obtained as 426.49 mg/g. Also, the equilibrium data were also fitted to the Langmuir, Freundlich and BET equilibrium isotherm models. It was found that the data fitted to BET (R2=0.9897) better than Langmuir (R2=0.9190) and Freundlich (R2=0.8819) model. Finally it was concluded that the single-walled carbon nanotubes can be used for dye removal from aqueous solutions.http://dx.doi.org/10.1155/2013/938374 |
| spellingShingle | Edris Bazrafshan Ferdos Kord Mostafapour Ali Reza Hosseini Ataolah Raksh Khorshid Amir Hossein Mahvi Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions Journal of Chemistry |
| title | Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions |
| title_full | Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions |
| title_fullStr | Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions |
| title_full_unstemmed | Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions |
| title_short | Decolorisation of Reactive Red 120 Dye by Using Single-Walled Carbon Nanotubes in Aqueous Solutions |
| title_sort | decolorisation of reactive red 120 dye by using single walled carbon nanotubes in aqueous solutions |
| url | http://dx.doi.org/10.1155/2013/938374 |
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