期刊
ANALYTICA CHIMICA ACTA
卷 730, 期 -, 页码 87-92出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2012.01.054
关键词
Amine-based ligand; Biosorbent; Biosorption; Heavy metal; Moringa oleifera biomass
Uptake for lead, copper, cadmium, nickel and manganese from aqueous solution using the Moringa oleifera seeds biomass (MOSB) and amine-based ligand (ABL) was investigated. Experiments on two synthetic multi-solute systems revealed that MOSB performed well in the biosorption and followed the decreasing orders Pb(II) > Cu(II) > Cd(II) > Ni(II) > Mn(II) and Zn(II) > Cu(II) > Ni(II). The general trend of the heavy metal ions uptake by the amine-based ligand followed decreased in the order Mn > Cd > Cu > Ni > Pb, which is the reverse trend for what was observed for MOSB. Comparing the single- and multi-metal solutions, there was no clear effect in the biosorption capacity of MOSB suggesting the presence of sufficient active binding sites for all metal ions studied. The MOSB performance is also not affected by pH in the range 3.5-8. (C) 2012 Elsevier B.V. All rights reserved.
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