Affiliation:
1. University of South China
2. South China Institute of Environmental Sciences, MEP
Abstract
The calix [6] arene and 5,11,17,23,29,35-butyl-25,26,27,28,29,30-diethyl phosphates calix [6] arene (EtPO6) were synthesized and their complexation with different metal ions were investigated. The calix [6] arene and EtPO6 were characterized by IR spectrum. The complexation between the host (calix [6] arene and EtPO6) and the guest (metal ions) were investigated by UV-VIS spectrum and extraction experiments. The results show that the complexation of metal ions by calix [6] aren ranked as Na+> Cu2+> Pb2+> UO22+> Fe3+> Cr3+> Ni2+, and the complexation of metal ions by EtPO6 ranked as UO22+> Cu2+> Fe3+> Pb2+> Na+> Cr3+> Ni2+. Compared with calix [6] aren, the extraction capacity of UO22+, Cu2+, Fe3+, Pb2+, Cr3+and Ni2+ions by EtPO6 increased by 37.6%, 10.2%, 10.6%, 9.6%, 2.2%, 4.4%, respectively, while that of Na+ion decreased by 22.3%.
Publisher
Trans Tech Publications, Ltd.
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