The purpose of this work is the preparation of best activated carbons from rice bran through carbonization at 500°C preceded by an impregnation in a 25% H3PO4 solution. We carry out the study of the effects of pretreatment with soda and Xp impregnation ratio on characteristics of three series of activated carbons SR0N, SR1N and SR2N corresponding to the pre-treatment with soda 0 M, 1 M and 2 M respectively. The iodine value and the textural properties of prepared carbons have been determined. The maximum iodine value, 893 mg.g-1 is obtained in the SR2N series for Xp = 2.5. In the SR1N series the maximum iodine value 866 mg.g-1 is obtained for Xp = 4. Also activated carbons CS1 (SR1N - Xp = 4) and CS2 (SR2N - Xp = 2.5) have the following characteristics: specific surface area equal to 1711.6 and 1558.5 m2g-1 and porous volumes of 1.234 and 1.385 cm3/g respectively. Studies conducted on phenol adsorption and thermodynamic showed that CS1 is slightly more effective than CS2 with a spontaneous and exothermic reaction. On the other hand, their adsorption isotherms are best described by the Langmuir model than that of Freundlich.
| Published in | American Journal of Physical Chemistry (Volume 5, Issue 2) |
| DOI | 10.11648/j.ajpc.20160502.13 |
| Page(s) | 35-44 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2016. Published by Science Publishing Group |
Rice Bran, Activated Carbon, Chemical Activation, Impregnation Ratio, Adsorption Isotherm
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APA Style
Clément K. Balogoun, Ibrahim Tchakala, Mike Medokponou, Moctar L. Bawa, Dominique C. Sohounhloue. (2016). Influence of Pretreatment with Soda (NaOH) on the Structural Characteristics of Activated Carbon Prepared by Chemical Means with H3PO4 from Rice Bran. American Journal of Physical Chemistry, 5(2), 35-44. https://doi.org/10.11648/j.ajpc.20160502.13
ACS Style
Clément K. Balogoun; Ibrahim Tchakala; Mike Medokponou; Moctar L. Bawa; Dominique C. Sohounhloue. Influence of Pretreatment with Soda (NaOH) on the Structural Characteristics of Activated Carbon Prepared by Chemical Means with H3PO4 from Rice Bran. Am. J. Phys. Chem. 2016, 5(2), 35-44. doi: 10.11648/j.ajpc.20160502.13
AMA Style
Clément K. Balogoun, Ibrahim Tchakala, Mike Medokponou, Moctar L. Bawa, Dominique C. Sohounhloue. Influence of Pretreatment with Soda (NaOH) on the Structural Characteristics of Activated Carbon Prepared by Chemical Means with H3PO4 from Rice Bran. Am J Phys Chem. 2016;5(2):35-44. doi: 10.11648/j.ajpc.20160502.13
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Download@article{10.11648/j.ajpc.20160502.13,
author = {Clément K. Balogoun and Ibrahim Tchakala and Mike Medokponou and Moctar L. Bawa and Dominique C. Sohounhloue},
title = {Influence of Pretreatment with Soda (NaOH) on the Structural Characteristics of Activated Carbon Prepared by Chemical Means with H3PO4 from Rice Bran},
journal = {American Journal of Physical Chemistry},
volume = {5},
number = {2},
pages = {35-44},
doi = {10.11648/j.ajpc.20160502.13},
url = {https://doi.org/10.11648/j.ajpc.20160502.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20160502.13},
abstract = {The purpose of this work is the preparation of best activated carbons from rice bran through carbonization at 500°C preceded by an impregnation in a 25% H3PO4 solution. We carry out the study of the effects of pretreatment with soda and Xp impregnation ratio on characteristics of three series of activated carbons SR0N, SR1N and SR2N corresponding to the pre-treatment with soda 0 M, 1 M and 2 M respectively. The iodine value and the textural properties of prepared carbons have been determined. The maximum iodine value, 893 mg.g-1 is obtained in the SR2N series for Xp = 2.5. In the SR1N series the maximum iodine value 866 mg.g-1 is obtained for Xp = 4. Also activated carbons CS1 (SR1N - Xp = 4) and CS2 (SR2N - Xp = 2.5) have the following characteristics: specific surface area equal to 1711.6 and 1558.5 m2g-1 and porous volumes of 1.234 and 1.385 cm3/g respectively. Studies conducted on phenol adsorption and thermodynamic showed that CS1 is slightly more effective than CS2 with a spontaneous and exothermic reaction. On the other hand, their adsorption isotherms are best described by the Langmuir model than that of Freundlich.},
year = {2016}
}
TY - JOUR T1 - Influence of Pretreatment with Soda (NaOH) on the Structural Characteristics of Activated Carbon Prepared by Chemical Means with H3PO4 from Rice Bran AU - Clément K. Balogoun AU - Ibrahim Tchakala AU - Mike Medokponou AU - Moctar L. Bawa AU - Dominique C. Sohounhloue Y1 - 2016/03/30 PY - 2016 N1 - https://doi.org/10.11648/j.ajpc.20160502.13 DO - 10.11648/j.ajpc.20160502.13 T2 - American Journal of Physical Chemistry JF - American Journal of Physical Chemistry JO - American Journal of Physical Chemistry SP - 35 EP - 44 PB - Science Publishing Group SN - 2327-2449 UR - https://doi.org/10.11648/j.ajpc.20160502.13 AB - The purpose of this work is the preparation of best activated carbons from rice bran through carbonization at 500°C preceded by an impregnation in a 25% H3PO4 solution. We carry out the study of the effects of pretreatment with soda and Xp impregnation ratio on characteristics of three series of activated carbons SR0N, SR1N and SR2N corresponding to the pre-treatment with soda 0 M, 1 M and 2 M respectively. The iodine value and the textural properties of prepared carbons have been determined. The maximum iodine value, 893 mg.g-1 is obtained in the SR2N series for Xp = 2.5. In the SR1N series the maximum iodine value 866 mg.g-1 is obtained for Xp = 4. Also activated carbons CS1 (SR1N - Xp = 4) and CS2 (SR2N - Xp = 2.5) have the following characteristics: specific surface area equal to 1711.6 and 1558.5 m2g-1 and porous volumes of 1.234 and 1.385 cm3/g respectively. Studies conducted on phenol adsorption and thermodynamic showed that CS1 is slightly more effective than CS2 with a spontaneous and exothermic reaction. On the other hand, their adsorption isotherms are best described by the Langmuir model than that of Freundlich. VL - 5 IS - 2 ER -
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