[ Optimisation de la préparation de charbons activés à base d’épis de maïs et caractérisation physico-chimique ]
Volume 29, Issue 4, July 2020, Pages 1161–1171
Abo Essis Armand1, Yobouet Yao Augustin2, Kouakou Yao Urbain3, and TROKOUREY Albert4
1 UFR SSMT, Laboratoire de Chimie Physique, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Ecole Normale Supérieure (ENS), Abidjan, Côte d’Ivoire
3 UFR SSMT, Laboratoire de Chimie Physique, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
4 Laboratoire de Chimie Physique, Université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Abidjan, Côte d'Ivoire
Original language: French
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The main objective of this study is to prepare activated carbon based on corn cobs with excellent adsorbent properties. To do this, a plan of experience was applied to 16 coals prepared with KOH and H3PO4 at different temperatures and concentrations. The plan of experience revealed that KOH, 1M carbon with a specific surface of 546.77 m2/g is the best. Experience has shown that H3PO4, 2M has a specific surface of 613.14 m2/g. The carbon activated by H3PO4 was characterized by determining the iodine number, the ash content, the surface functions, the pHzc and scanning electron microscopy (SEM). The results showed that activated carbon has a high iodine number (674.506 mg/g) and low ash content (6%). In addition, the carbon is acidic and has a porous surface.
Author Keywords: Corn cobs, activated carbon, chemical activation, plan of experience, physico-chemical properties.
Volume 29, Issue 4, July 2020, Pages 1161–1171
Abo Essis Armand1, Yobouet Yao Augustin2, Kouakou Yao Urbain3, and TROKOUREY Albert4
1 UFR SSMT, Laboratoire de Chimie Physique, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Ecole Normale Supérieure (ENS), Abidjan, Côte d’Ivoire
3 UFR SSMT, Laboratoire de Chimie Physique, Université Félix Houphouët-Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire
4 Laboratoire de Chimie Physique, Université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Abidjan, Côte d'Ivoire
Original language: French
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The main objective of this study is to prepare activated carbon based on corn cobs with excellent adsorbent properties. To do this, a plan of experience was applied to 16 coals prepared with KOH and H3PO4 at different temperatures and concentrations. The plan of experience revealed that KOH, 1M carbon with a specific surface of 546.77 m2/g is the best. Experience has shown that H3PO4, 2M has a specific surface of 613.14 m2/g. The carbon activated by H3PO4 was characterized by determining the iodine number, the ash content, the surface functions, the pHzc and scanning electron microscopy (SEM). The results showed that activated carbon has a high iodine number (674.506 mg/g) and low ash content (6%). In addition, the carbon is acidic and has a porous surface.
Author Keywords: Corn cobs, activated carbon, chemical activation, plan of experience, physico-chemical properties.
Abstract: (french)
L’objectif principal de cette étude est de préparer des charbons activés à base d’épis de maïs possédant d’excellentes propriétés adsorbantes. Pour ce faire, on a appliqué un plan d’expérience sur 16 charbons préparés avec KOH et H3PO4 à différentes températures et concentrations. Le plan d’expérience a révélé que le charbon KOH 1M avec une surface spécifique de 546,77 m2/g est le meilleur. L’expérience a montré que H3PO4 2M a une surface spécifique de 613,14 m2/g. Les deux charbons pourraient être de bons adsorbants. La caractérisation du charbon activé par H3PO4 s’est faite en déterminant l’indice d’iode, le taux de cendre, les fonctions de surface par Boehm, le pHZC et la scanning electron microscopy (SEM). Les résultats ont montré que le charbon activé a un grand nombre d’iode (674,506 mg/g) et un faible taux de cendre (6%). En outre le charbon est acide et présente une surface poreuse.
Author Keywords: Epis de maïs, charbon activé, activation chimique, plan d’expérience, propriétés physico-chimiques.
How to Cite this Article
Abo Essis Armand, Yobouet Yao Augustin, Kouakou Yao Urbain, and TROKOUREY Albert, “Optimization of the preparation of activated carbon based on corn cobs and physico-chemical characterization,” International Journal of Innovation and Applied Studies, vol. 29, no. 4, pp. 1161–1171, July 2020.
