期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2017
卷号：18
期号：2
页码：94-104
DOI：10.21743/pjaec/2017.12.09
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：A novel,fibrous and multifunctional group surface biosorbent was prepared from the waste of Irvingia gabonensis (Dika nut-DN) seed. The biosorbent potential in cheap environmental remediation was tested using aqueous copper solution as adsorbate. Percentage Cu2+ removal was as high as 70 %. Sorption data were tested with various isotherms and kinetics models. Monolayer sorption dominates the uptake of Cu2+ onto DN with maximum monolayer sorption capacity of 227.27 mg/g. Some level of multilayer sorption also occurred within the Cu2+ -DN system thus a greater than 0.9 correlation coefficient recorded for the Freundlich sorption isotherm. Possible Cu2+ uptake mechanism onto DN was proposed. Pseudo second order kinetics best described the biosorption data while desorption results showed that Cu2+ was stable on DN surface..
