α-Endosulfan Removal from Water by Adsorption over Natural Clays from Burkina Faso: An Isothermal Study
α-Endosulfan Removal from Water by Adsorption over Natural Clays from Burkina Faso: An Isothermal Study作者机构：Laboratoire de Physique et de Chimie de l’Environnement (LPCE) Université de Ouagadougou Ouagadougou Burkina Faso Yser Lab and Studies Ouagadougou Burkina Faso
出 版 物：《Journal of Materials Science and Chemical Engineering》 (材料科学与化学工程（英文）)
年 卷 期：2014年第2卷第11期
页 面：49-57页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：α-Endosulfan Removal Water Natural Clays Burkina Faso
摘 要：The present study carried out the α-endosulfan removal from water by adsorption over natural clays from the western region of Burkina Faso. The adsorption experiments were performed over raw clay samples at room temperature in batch reactor and the obtained adsorption isotherms were well fitted by Fowler-Guggenheim model. It was pointed out for all samples that α-endosulfan was physisorbed in the interlayer space of the clay samples. The maximal adsorption capacities were respectively about 9.12, 6.98 and 4.13 mg/g for KO2, KO1 and KW1 samples. The differences in terms of adsorption capacity for the three samples were due to the presence of illite in the samples KO2 and KO1 when the KW1 sample contained essentially kaolinite in its structure. When the interlayer space was large enough as for samples with illite a greater amount of α-endosulfan molecules were adsorbed. It was also shown that the samples with the higher surface area were the most efficient for the removal of α-endosulfan molecules from water. Moreover, this study exhibited that the α-endosulfan adsorption depended on the crystallites size;the samples presenting largest crystallites had the greatest adsorption capacities.
维普期刊数据库