文章基本信息

标题：Adsorption of Bismarck Brown R Dye Onto Multiwall Carbon Nanotubes
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作者：Ahmed M. Kamil ; Firas H. Abdalrazak ; Ahmed F. Halbus 等
期刊名称：Journal of Environmental Analytical Chemistry
电子版ISSN：2380-2391
出版年度：2014
卷号：1
期号：1
页码：1-7
DOI：10.4172/2380-2391.1000104
语种：English
出版社：OMICS International
摘要：In this work, Multiwall carbon nanotubes (MWCNTs) were used in the adsorptive removal of Bismarck Brown R (BBR) dye from an aqueous solution. The effects of contact time, MWCNT dosage, dye concentration, pH and temperature on adsorption of BBR dye by MWCNTs were investigated. The adsorption study was analyzed kinetically, and the results revealed that the adsorption followed pseudo-second order kinetics with good correlation coefficients. The equilibrium adsorption data was analyzed using three common adsorption models: Langmuir, Freundlich and Temkin. Gibbs free energy change values showed that the adsorptions of BBR dye on MWCNTs is spontaneous. The results also indicate that the adsorption is physisorption.
关键词：Adsorption; MWCNTs; Bismarck brown R; Kinetics; Isotherms