Removal of heavy metal ions from aqueous solutions by synthetic apatites using the column ion-exchange method

被引：4

作者：

de Freitas, JS ^{[1
]}

Salomao, GC ^{[1
]}

Gomes, MDT ^{[1
]}

机构：

[1] UERJ, Inst Quim, Dept Quim Geral & Inorgan, BR-20550013 Rio De Janeiro, Brazil

来源：

ECLETICA QUIMICA | 2000年 / 25卷

关键词：

hydroxyapatites; carbonate apatite; ion exchange; heavy metal;

D O I：

10.1590/S0100-46702000000100002

中图分类号：

学科分类号：

摘要：

The removal of ions such as Al3+, Mn2+, Cu2+, Zn2+, Cd2+ and Pb2+ in aqueous solutions by synthetic, apatites has been investigated using the column method. Under the same conditions, hydroxyapatites were more selectives that carbonate apatites for cations remotion. Using hydroxyapatites, the ranking of ions according to amount exchanged was as follows: Mn2+ < Zn2+ < Cu2+ < Cd2+ < Al3+ < Pb2+. The order of the ions was similar to that observed in previous works using the batch method. XRD and LR analysis indicated the formation of a single phase of Pb2+ ion-exchanged.

引用

页码：19 / 29

页数：11

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