RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation
Abstract Nowadays, radiation grafting polymer adsorbents have been widely developed due to their advantages, such as low operating cost, high efficiency. In this research, glycidyl methacrylate monomers were grafted on polypropylene polymer fibers by simultaneous irradiation of gamma-ray with a dose...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-97826-y |
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| author | Fatemeh Maleki Mobina Gholami Rezvan Torkaman Meisam Torab-Mostaedi Mehdi Asadollahzadeh |
| author_facet | Fatemeh Maleki Mobina Gholami Rezvan Torkaman Meisam Torab-Mostaedi Mehdi Asadollahzadeh |
| author_sort | Fatemeh Maleki |
| collection | DOAJ |
| description | Abstract Nowadays, radiation grafting polymer adsorbents have been widely developed due to their advantages, such as low operating cost, high efficiency. In this research, glycidyl methacrylate monomers were grafted on polypropylene polymer fibers by simultaneous irradiation of gamma-ray with a dose of 20 kGy. The grafted polymer was then modified using different amino groups and tested for adsorption of cobalt ions in an aqueous solution. Finally, the modified polymer adsorbent with a high efficiency for cobalt ions adsorption was synthesized and tested. Different modes of cobalt ions adsorption were tested in other adsorption conditions, including adsorption contact time, pH, different amounts of adsorbent mass, and different concentrations of cobalt ions solution. The adsorbent structure was characterized with FT-IR, XRD, TG and SEM techniques and illustrated having an efficient grafting percentage and adsorption capability for cobalt removing by batch experiments. The optimum conditions were obtained by a central composite design: adsorbent mass = 0.07 g, initial concentration = 40 mg/L, time = 182 min, and pH = 4.5 with ethylenediamine as a modified monomer and high amination percentage. Kinetics and equilibrium isotherms observation described that the experimental data followed pseudo-second-order and Langmuir models, respectively. The maximum adsorption capacity from Langmuir isotherm capacity is obtained equal to 68.02 mg/g. |
| format | Article |
| id | doaj-art-5616a8f6fc8c42468f873f8e05da8641 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2021-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-5616a8f6fc8c42468f873f8e05da86412025-01-26T12:35:23ZengNature PortfolioScientific Reports2045-23222021-09-0111112210.1038/s41598-021-97826-yRETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiationFatemeh Maleki0Mobina Gholami1Rezvan Torkaman2Meisam Torab-Mostaedi3Mehdi Asadollahzadeh4Nuclear Engineering Department, Shahid Beheshti UniversityNuclear Engineering Department, Shahid Beheshti UniversityNuclear Fuel Cycle Research School, Nuclear Science and Technology Research InstituteNuclear Fuel Cycle Research School, Nuclear Science and Technology Research InstituteNuclear Fuel Cycle Research School, Nuclear Science and Technology Research InstituteAbstract Nowadays, radiation grafting polymer adsorbents have been widely developed due to their advantages, such as low operating cost, high efficiency. In this research, glycidyl methacrylate monomers were grafted on polypropylene polymer fibers by simultaneous irradiation of gamma-ray with a dose of 20 kGy. The grafted polymer was then modified using different amino groups and tested for adsorption of cobalt ions in an aqueous solution. Finally, the modified polymer adsorbent with a high efficiency for cobalt ions adsorption was synthesized and tested. Different modes of cobalt ions adsorption were tested in other adsorption conditions, including adsorption contact time, pH, different amounts of adsorbent mass, and different concentrations of cobalt ions solution. The adsorbent structure was characterized with FT-IR, XRD, TG and SEM techniques and illustrated having an efficient grafting percentage and adsorption capability for cobalt removing by batch experiments. The optimum conditions were obtained by a central composite design: adsorbent mass = 0.07 g, initial concentration = 40 mg/L, time = 182 min, and pH = 4.5 with ethylenediamine as a modified monomer and high amination percentage. Kinetics and equilibrium isotherms observation described that the experimental data followed pseudo-second-order and Langmuir models, respectively. The maximum adsorption capacity from Langmuir isotherm capacity is obtained equal to 68.02 mg/g.https://doi.org/10.1038/s41598-021-97826-y |
| spellingShingle | Fatemeh Maleki Mobina Gholami Rezvan Torkaman Meisam Torab-Mostaedi Mehdi Asadollahzadeh RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation Scientific Reports |
| title | RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation |
| title_full | RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation |
| title_fullStr | RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation |
| title_full_unstemmed | RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation |
| title_short | RETRACTED ARTICLE: Multivariate optimization of removing of cobalt(II) with an efficient aminated-GMA polypropylene adsorbent by induced-grafted polymerization under simultaneous gamma-ray irradiation |
| title_sort | retracted article multivariate optimization of removing of cobalt ii with an efficient aminated gma polypropylene adsorbent by induced grafted polymerization under simultaneous gamma ray irradiation |
| url | https://doi.org/10.1038/s41598-021-97826-y |
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