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Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
A novel microporous three-dimensional pomegranate-like micro-scavenger cage (P-MSC) composite has been synthesized by immobilization of iron phyllosilicates clay onto a Prussian blue (PB)/alginate matrix and tested for the removal of radioactive cesium from aqueous solution. Experimental results sho...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5137142/ https://www.ncbi.nlm.nih.gov/pubmed/27917913 http://dx.doi.org/10.1038/srep38384 |
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author | Jang, Sung-Chan Kang, Sung-Min Haldorai, Yuvaraj Giribabu, Krishnan Lee, Go-Woon Lee, Young-Chul Hyun, Moon Seop Han, Young-Kyu Roh, Changhyun Huh, Yun Suk |
author_facet | Jang, Sung-Chan Kang, Sung-Min Haldorai, Yuvaraj Giribabu, Krishnan Lee, Go-Woon Lee, Young-Chul Hyun, Moon Seop Han, Young-Kyu Roh, Changhyun Huh, Yun Suk |
author_sort | Jang, Sung-Chan |
collection | PubMed |
description | A novel microporous three-dimensional pomegranate-like micro-scavenger cage (P-MSC) composite has been synthesized by immobilization of iron phyllosilicates clay onto a Prussian blue (PB)/alginate matrix and tested for the removal of radioactive cesium from aqueous solution. Experimental results show that the adsorption capacity increases with increasing the inactive cesium concentration from 1 ppm to 30 ppm, which may be attributed to greater number of adsorption sites and further increase in the inactive cesium concentration has no effect. The P-MSC composite exhibit maximum adsorption capacity of 108.06 mg of inactive cesium per gram of adsorbent. The adsorption isotherm is better fitted to the Freundlich model than the Langmuir model. In addition, kinetics studies show that the adsorption process is consistent with a pseudo second-order model. Furthermore, at equilibrium, the composite has an outstanding adsorption capacity of 99.24% for the radioactive cesium from aqueous solution. This may be ascribed to the fact that the AIP clay played a substantial role in protecting PB release from the P-MSC composite by cross-linking with alginate to improve the mechanical stability. Excellent adsorption capacity, easy separation, and good selectivity make the adsorbent suitable for the removal of radioactive cesium from seawater around nuclear plants and/or after nuclear accidents. |
format | Online Article Text |
id | pubmed-5137142 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-51371422017-01-27 Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium Jang, Sung-Chan Kang, Sung-Min Haldorai, Yuvaraj Giribabu, Krishnan Lee, Go-Woon Lee, Young-Chul Hyun, Moon Seop Han, Young-Kyu Roh, Changhyun Huh, Yun Suk Sci Rep Article A novel microporous three-dimensional pomegranate-like micro-scavenger cage (P-MSC) composite has been synthesized by immobilization of iron phyllosilicates clay onto a Prussian blue (PB)/alginate matrix and tested for the removal of radioactive cesium from aqueous solution. Experimental results show that the adsorption capacity increases with increasing the inactive cesium concentration from 1 ppm to 30 ppm, which may be attributed to greater number of adsorption sites and further increase in the inactive cesium concentration has no effect. The P-MSC composite exhibit maximum adsorption capacity of 108.06 mg of inactive cesium per gram of adsorbent. The adsorption isotherm is better fitted to the Freundlich model than the Langmuir model. In addition, kinetics studies show that the adsorption process is consistent with a pseudo second-order model. Furthermore, at equilibrium, the composite has an outstanding adsorption capacity of 99.24% for the radioactive cesium from aqueous solution. This may be ascribed to the fact that the AIP clay played a substantial role in protecting PB release from the P-MSC composite by cross-linking with alginate to improve the mechanical stability. Excellent adsorption capacity, easy separation, and good selectivity make the adsorbent suitable for the removal of radioactive cesium from seawater around nuclear plants and/or after nuclear accidents. Nature Publishing Group 2016-12-05 /pmc/articles/PMC5137142/ /pubmed/27917913 http://dx.doi.org/10.1038/srep38384 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Jang, Sung-Chan Kang, Sung-Min Haldorai, Yuvaraj Giribabu, Krishnan Lee, Go-Woon Lee, Young-Chul Hyun, Moon Seop Han, Young-Kyu Roh, Changhyun Huh, Yun Suk Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium |
title | Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium |
title_full | Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium |
title_fullStr | Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium |
title_full_unstemmed | Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium |
title_short | Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium |
title_sort | synergistically strengthened 3d micro-scavenger cage adsorbent for selective removal of radioactive cesium |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5137142/ https://www.ncbi.nlm.nih.gov/pubmed/27917913 http://dx.doi.org/10.1038/srep38384 |
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