Removal of methylene blue by amidoxime polyacrylonitrile-grafted cotton fabrics: Kinetic, equilibrium, and simulation studies
In this study, an amidoxime-grafted cotton fabric ion exchanger was developed for methylene blue (MB) removal from wastewater. The ability of the amidoxime-grafted cotton fabrics to remove MB ions from an aqueous solution was investigated in equilibrium, kinetics and thermodynamics studies. Equilibr...
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| Veröffentlicht in: | Fibers and polymers 2016-11, Vol.17 (11), p.1884-1897 |
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| container_issue | 11 |
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| container_title | Fibers and polymers |
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| creator | Mohy Eldin, M. S. Gouda, M. H. Youssef, M. E. El-Shazly, Yehia M. S. Farag, H. A. |
| description | In this study, an amidoxime-grafted cotton fabric ion exchanger was developed for methylene blue (MB) removal from wastewater. The ability of the amidoxime-grafted cotton fabrics to remove MB ions from an aqueous solution was investigated in equilibrium, kinetics and thermodynamics studies. Equilibrium data agreed well with the Freundlich and Langmuir isotherm models. The result indicated that, based on the Langmuir coefficient, the maximum capacity (monolayer saturation at equilibrium) of the amidoxime-grafted cotton fabric was 22.27 mg/g. The kinetic data were found to follow the pseudo-second-order model, and intra-particle diffusion is the sole rate-controlling factor. Negative values of Δ
G
0
, Δ
H
0
, and Δ
S
0
revealed the spontaneous, exothermic and entropy-driven nature of the process. |
| doi_str_mv | 10.1007/s12221-016-6373-3 |
| format | Article |
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G
0
, Δ
H
0
, and Δ
S
0
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G
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H
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S
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The result indicated that, based on the Langmuir coefficient, the maximum capacity (monolayer saturation at equilibrium) of the amidoxime-grafted cotton fabric was 22.27 mg/g. The kinetic data were found to follow the pseudo-second-order model, and intra-particle diffusion is the sole rate-controlling factor. Negative values of Δ
G
0
, Δ
H
0
, and Δ
S
0
revealed the spontaneous, exothermic and entropy-driven nature of the process.</abstract><cop>Seoul</cop><pub>The Korean Fiber Society</pub><doi>10.1007/s12221-016-6373-3</doi><tpages>14</tpages></addata></record> |
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| subjects | Chemistry Chemistry and Materials Science Polymer Sciences |
| title | Removal of methylene blue by amidoxime polyacrylonitrile-grafted cotton fabrics: Kinetic, equilibrium, and simulation studies |
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