The main goal of this study is to evaluate the potential for glyphosate to contaminate water and ground water. For this purpose, the adsorption of glyphosate on a soil of culture in West of Côte d’Ivoire is investigated. The chemical composition of the soil, the different materials that compose it as well as the pH of zero charge of this soil were determined. The results revealed that the soil sample was rich in iron oxide mainly goethite, phengite and anatase. Adsorption kinetics was studied and the rate of sorption was found to conform to pseudo-second-order kinetics with 90 min as equilibrium time. Equilibrium isotherm data were analyzed according to Langmuir and Freundlich models. The two models describe the adsorption phenomenon well. The soil is heterogeneous with a good affinity between the metal oxides of the soil and the glyphosate. The maximum adsorption capacities were determined to be 2.68 mg/g. Parameters such as the initial pH of the solution, the mass of soil and the temperature were well investigated. It is observed that the adsorbed amount of glyphosate increases with temperature, reflecting the endothermic nature of the adsorption. The maximum amount of glyphosate adsorbed at 40°C is approximately 3 mg/g. The amount of glyphosate adsorbed increases with the initial concentration and decreases with the increase of pH. The optimal pH is therefore 5.
Published in | American Journal of Applied Chemistry (Volume 9, Issue 6) |
DOI | 10.11648/j.ajac.20210906.15 |
Page(s) | 213-220 |
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), 2021. Published by Science Publishing Group |
Pesticides, Iron Oxides, Adsorption Phenomenon, Kinetics, Isotherm, pH
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APA Style
Kouakou Yao Urbain, Kambiré Ollo, Kouakou Kpan Kpan Gains, Trokourey Albert. (2021). Study of Potential Adsorption of Glyphosate on Iron-textured Soil. American Journal of Applied Chemistry, 9(6), 213-220. https://doi.org/10.11648/j.ajac.20210906.15
ACS Style
Kouakou Yao Urbain; Kambiré Ollo; Kouakou Kpan Kpan Gains; Trokourey Albert. Study of Potential Adsorption of Glyphosate on Iron-textured Soil. Am. J. Appl. Chem. 2021, 9(6), 213-220. doi: 10.11648/j.ajac.20210906.15
AMA Style
Kouakou Yao Urbain, Kambiré Ollo, Kouakou Kpan Kpan Gains, Trokourey Albert. Study of Potential Adsorption of Glyphosate on Iron-textured Soil. Am J Appl Chem. 2021;9(6):213-220. doi: 10.11648/j.ajac.20210906.15
@article{10.11648/j.ajac.20210906.15, author = {Kouakou Yao Urbain and Kambiré Ollo and Kouakou Kpan Kpan Gains and Trokourey Albert}, title = {Study of Potential Adsorption of Glyphosate on Iron-textured Soil}, journal = {American Journal of Applied Chemistry}, volume = {9}, number = {6}, pages = {213-220}, doi = {10.11648/j.ajac.20210906.15}, url = {https://doi.org/10.11648/j.ajac.20210906.15}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20210906.15}, abstract = {The main goal of this study is to evaluate the potential for glyphosate to contaminate water and ground water. For this purpose, the adsorption of glyphosate on a soil of culture in West of Côte d’Ivoire is investigated. The chemical composition of the soil, the different materials that compose it as well as the pH of zero charge of this soil were determined. The results revealed that the soil sample was rich in iron oxide mainly goethite, phengite and anatase. Adsorption kinetics was studied and the rate of sorption was found to conform to pseudo-second-order kinetics with 90 min as equilibrium time. Equilibrium isotherm data were analyzed according to Langmuir and Freundlich models. The two models describe the adsorption phenomenon well. The soil is heterogeneous with a good affinity between the metal oxides of the soil and the glyphosate. The maximum adsorption capacities were determined to be 2.68 mg/g. Parameters such as the initial pH of the solution, the mass of soil and the temperature were well investigated. It is observed that the adsorbed amount of glyphosate increases with temperature, reflecting the endothermic nature of the adsorption. The maximum amount of glyphosate adsorbed at 40°C is approximately 3 mg/g. The amount of glyphosate adsorbed increases with the initial concentration and decreases with the increase of pH. The optimal pH is therefore 5.}, year = {2021} }
TY - JOUR T1 - Study of Potential Adsorption of Glyphosate on Iron-textured Soil AU - Kouakou Yao Urbain AU - Kambiré Ollo AU - Kouakou Kpan Kpan Gains AU - Trokourey Albert Y1 - 2021/12/31 PY - 2021 N1 - https://doi.org/10.11648/j.ajac.20210906.15 DO - 10.11648/j.ajac.20210906.15 T2 - American Journal of Applied Chemistry JF - American Journal of Applied Chemistry JO - American Journal of Applied Chemistry SP - 213 EP - 220 PB - Science Publishing Group SN - 2330-8745 UR - https://doi.org/10.11648/j.ajac.20210906.15 AB - The main goal of this study is to evaluate the potential for glyphosate to contaminate water and ground water. For this purpose, the adsorption of glyphosate on a soil of culture in West of Côte d’Ivoire is investigated. The chemical composition of the soil, the different materials that compose it as well as the pH of zero charge of this soil were determined. The results revealed that the soil sample was rich in iron oxide mainly goethite, phengite and anatase. Adsorption kinetics was studied and the rate of sorption was found to conform to pseudo-second-order kinetics with 90 min as equilibrium time. Equilibrium isotherm data were analyzed according to Langmuir and Freundlich models. The two models describe the adsorption phenomenon well. The soil is heterogeneous with a good affinity between the metal oxides of the soil and the glyphosate. The maximum adsorption capacities were determined to be 2.68 mg/g. Parameters such as the initial pH of the solution, the mass of soil and the temperature were well investigated. It is observed that the adsorbed amount of glyphosate increases with temperature, reflecting the endothermic nature of the adsorption. The maximum amount of glyphosate adsorbed at 40°C is approximately 3 mg/g. The amount of glyphosate adsorbed increases with the initial concentration and decreases with the increase of pH. The optimal pH is therefore 5. VL - 9 IS - 6 ER -