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Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials
Hierarchical porous carbon materials made from cork were fabricated using a facile and green method combined with air activation, without any templates and chemical agents. The influence of air activation on the texture and other surface characteristics of the carbon materials were evaluated by vari...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566616/ https://www.ncbi.nlm.nih.gov/pubmed/31126045 http://dx.doi.org/10.3390/ma12101675 |
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author | Ren, Suhong Deng, Liping Zhang, Bo Lei, Yafang Ren, Haiqing Lv, Jianxiong Zhao, Rongjun Chen, Xiufang |
author_facet | Ren, Suhong Deng, Liping Zhang, Bo Lei, Yafang Ren, Haiqing Lv, Jianxiong Zhao, Rongjun Chen, Xiufang |
author_sort | Ren, Suhong |
collection | PubMed |
description | Hierarchical porous carbon materials made from cork were fabricated using a facile and green method combined with air activation, without any templates and chemical agents. The influence of air activation on the texture and other surface characteristics of the carbon materials were evaluated by various characterization techniques. Results indicate that air oxidation can effectively improve the surface area and the hierarchical porous structure of carbon materials, as well as increase the number of oxygen-containing functional groups on the carbon surface. The specific surface area and the pore volume of the carbon material activated by air at 450 °C (C800-M450) can reach 580 m(2)/g and 0.379 cm(3)/g, respectively. These values are considerably higher than those for the non-activated material (C800, 376 m(2)/g, 0.201 cm(3)/g). The contents of the functional groups (C–O, C=O and O–H) increased with rising activation temperature. After air activation, the adsorption capacity of the carbon materials for methylene blue (MB) and methyl orange (MO) was increased from 7.7 and 6.4 mg/g for C800 to 312.5 and 97.1 mg/g for C800-M450, respectively. The excellent dye removal of the materials suggests that the porous carbon obtained from biomass can be potentially used for wastewater treatment. |
format | Online Article Text |
id | pubmed-6566616 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-65666162019-06-17 Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials Ren, Suhong Deng, Liping Zhang, Bo Lei, Yafang Ren, Haiqing Lv, Jianxiong Zhao, Rongjun Chen, Xiufang Materials (Basel) Article Hierarchical porous carbon materials made from cork were fabricated using a facile and green method combined with air activation, without any templates and chemical agents. The influence of air activation on the texture and other surface characteristics of the carbon materials were evaluated by various characterization techniques. Results indicate that air oxidation can effectively improve the surface area and the hierarchical porous structure of carbon materials, as well as increase the number of oxygen-containing functional groups on the carbon surface. The specific surface area and the pore volume of the carbon material activated by air at 450 °C (C800-M450) can reach 580 m(2)/g and 0.379 cm(3)/g, respectively. These values are considerably higher than those for the non-activated material (C800, 376 m(2)/g, 0.201 cm(3)/g). The contents of the functional groups (C–O, C=O and O–H) increased with rising activation temperature. After air activation, the adsorption capacity of the carbon materials for methylene blue (MB) and methyl orange (MO) was increased from 7.7 and 6.4 mg/g for C800 to 312.5 and 97.1 mg/g for C800-M450, respectively. The excellent dye removal of the materials suggests that the porous carbon obtained from biomass can be potentially used for wastewater treatment. MDPI 2019-05-23 /pmc/articles/PMC6566616/ /pubmed/31126045 http://dx.doi.org/10.3390/ma12101675 Text en © 2019 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 Ren, Suhong Deng, Liping Zhang, Bo Lei, Yafang Ren, Haiqing Lv, Jianxiong Zhao, Rongjun Chen, Xiufang Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials |
title | Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials |
title_full | Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials |
title_fullStr | Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials |
title_full_unstemmed | Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials |
title_short | Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials |
title_sort | effect of air oxidation on texture, surface properties and dye adsorption of wood-derived porous carbon materials |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566616/ https://www.ncbi.nlm.nih.gov/pubmed/31126045 http://dx.doi.org/10.3390/ma12101675 |
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