Cargando…
The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine
Oxygen-containing functional groups tend to induce a strong interaction between solid adsorbents and iodine molecules, yet have not been systematically investigated. Herein, on the basis of a series of nitric acid-treated graphene oxide (GO) with different contents of oxygen functional groups for io...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7766158/ https://www.ncbi.nlm.nih.gov/pubmed/33348796 http://dx.doi.org/10.3390/ma13245770 |
_version_ | 1783628652130336768 |
---|---|
author | Zhang, Qian Gao, Yangyang Xu, Zhanglian Wang, Sheng Kobayashi, Hisayoshi Wang, Jie |
author_facet | Zhang, Qian Gao, Yangyang Xu, Zhanglian Wang, Sheng Kobayashi, Hisayoshi Wang, Jie |
author_sort | Zhang, Qian |
collection | PubMed |
description | Oxygen-containing functional groups tend to induce a strong interaction between solid adsorbents and iodine molecules, yet have not been systematically investigated. Herein, on the basis of a series of nitric acid-treated graphene oxide (GO) with different contents of oxygen functional groups for iodine adsorption, it was found that the iodine uptake capacity is proportionate to the oxygen content and the diversities of oxygen-containing groups. The density functional theory (DFT) calculation results also suggest that oxygen-containing groups result in strong interactions between iodine molecules and the adsorbents through a covalent bond-forming process, among which -OH groups possess a higher adsorption energy averagely. Such theoretical and experimental work deepens our understanding of the effects of oxygen functional groups on iodine adsorption and provides novel ideas for future design and synthesis of high-performance solid adsorbents for radioactive iodine. |
format | Online Article Text |
id | pubmed-7766158 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77661582020-12-28 The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine Zhang, Qian Gao, Yangyang Xu, Zhanglian Wang, Sheng Kobayashi, Hisayoshi Wang, Jie Materials (Basel) Article Oxygen-containing functional groups tend to induce a strong interaction between solid adsorbents and iodine molecules, yet have not been systematically investigated. Herein, on the basis of a series of nitric acid-treated graphene oxide (GO) with different contents of oxygen functional groups for iodine adsorption, it was found that the iodine uptake capacity is proportionate to the oxygen content and the diversities of oxygen-containing groups. The density functional theory (DFT) calculation results also suggest that oxygen-containing groups result in strong interactions between iodine molecules and the adsorbents through a covalent bond-forming process, among which -OH groups possess a higher adsorption energy averagely. Such theoretical and experimental work deepens our understanding of the effects of oxygen functional groups on iodine adsorption and provides novel ideas for future design and synthesis of high-performance solid adsorbents for radioactive iodine. MDPI 2020-12-17 /pmc/articles/PMC7766158/ /pubmed/33348796 http://dx.doi.org/10.3390/ma13245770 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Qian Gao, Yangyang Xu, Zhanglian Wang, Sheng Kobayashi, Hisayoshi Wang, Jie The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine |
title | The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine |
title_full | The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine |
title_fullStr | The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine |
title_full_unstemmed | The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine |
title_short | The Effects of Oxygen Functional Groups on Graphene Oxide on the Efficient Adsorption of Radioactive Iodine |
title_sort | effects of oxygen functional groups on graphene oxide on the efficient adsorption of radioactive iodine |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7766158/ https://www.ncbi.nlm.nih.gov/pubmed/33348796 http://dx.doi.org/10.3390/ma13245770 |
work_keys_str_mv | AT zhangqian theeffectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT gaoyangyang theeffectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT xuzhanglian theeffectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT wangsheng theeffectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT kobayashihisayoshi theeffectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT wangjie theeffectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT zhangqian effectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT gaoyangyang effectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT xuzhanglian effectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT wangsheng effectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT kobayashihisayoshi effectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine AT wangjie effectsofoxygenfunctionalgroupsongrapheneoxideontheefficientadsorptionofradioactiveiodine |