关于从马科雷果壳制备的活性炭对染料吸附的研究。
Investigation of dye adsorption onto activated carbon from the shells of Macoré fruit.
作者信息
Aboua Kouassi Narcisse, Yobouet Yao Augustin, Yao Kouassi Benjamin, Goné Droh Lanciné, Trokourey Albert
机构信息
Laboratoire de Procédés Industriels, de Synthèse, de l'Environnement et des Energies Nouvelles, Institut National Polytechnique Félix Houphouët-Boigny de Yamoussoukro, BP 1093 Yamoussoukro, Côte d'Ivoire.
Laboratoire de Procédés Industriels, de Synthèse, de l'Environnement et des Energies Nouvelles, Institut National Polytechnique Félix Houphouët-Boigny de Yamoussoukro, BP 1093 Yamoussoukro, Côte d'Ivoire.
出版信息
J Environ Manage. 2015 Jun 1;156:10-4. doi: 10.1016/j.jenvman.2015.03.006. Epub 2015 Mar 16.
The activated carbon obtained from the shells of Macoré fruit was used as an adsorbent for the removal of dyes such as methylene blue (MB) and methyl orange (MO) from synthetic contaminated aqueous solutions. It holds that the adsorption is more favourable at acidic pH, with an optimum adsorption at pH = 2. At this pH, the adsorption rate is more than 98% for the two dyes. The sorption capacity was enhanced by increasing the amount of activated carbon. Above room temperature, the adsorption rates remain constant at a value of approximately 99%. The study of the adsorption kinetics indicates that the adsorption on the studied dyes follows second-order kinetics. The isotherm adsorption data were found to be described by both Langmuir and Freundlich. In addition, the thermodynamic studies revealed that the adsorption process is a favourable, endothermic and spontaneous phenomenon.
从马科雷果壳中获得的活性炭被用作吸附剂，用于从合成污染水溶液中去除亚甲基蓝（MB）和甲基橙（MO）等染料。研究认为，在酸性pH值下吸附更有利，在pH = 2时吸附效果最佳。在此pH值下，两种染料的吸附率均超过98%。增加活性炭用量可提高吸附容量。高于室温时，吸附率保持在约99%的恒定值。吸附动力学研究表明，对所研究染料的吸附遵循二级动力学。等温吸附数据发现可用朗缪尔和弗伦德利希等温线描述。此外，热力学研究表明，吸附过程是一个有利的、吸热的自发现象。
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