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Paper Details

Bibliographic Data:

Code:	HL81
Paper Type:	Contribution to Proceeding
Author(s):	Huang CP, Lin YT
Title:	Specific adsorption of Co(II) and [Co(III)EDTA]- complexes on hydrous oxide surfaces
Book:	Adsorption from aqueous solutions. Proceedings of the symposium held March 24-27, 1980, as a satellite symposium to the meeting of the American Chemical Society Division of Colloid and Surface Chemistry, Houston, Texas
	Year: 1981 Pages: 61-92
Editor(s):	Tewari PH
Publisher:	Plenum Press Town: New York
ISBN:	0-306-40747-7
Internal Storage:	V1675
DOI:	10.1007/978-1-4613-3264-0_4
Abstract:	The effect of complex formation on the adsorption behavior of heavy metals is studied by comparing the adsorption characteristics of Co(II) species, (uncomplexed), and [Co(III)EDTA]⁻ complexes on two hydrous solids, namely SiO₂ and Al₂O₃. The results demonstrate that for highly stable metal complexes such as [Co(III)EDTA]⁻, and particularly ones having three-dimensional structure, their adsorption behavior is influenced by the nature of their ligands. However, their adsorption characteristics do not necessarily copy that of the complex-forming agent. Furthermore, specific chemical interactions with the formation of hydrogen bondings play a very significant role in the adsorption of both the complexed and uncomplexed metal ions on hydrous solids. Adsorption reactions between metal ions, both complexed and uncomplexed, and hydrous solids can be readily described by a surface complex formation model in that the surface hydroxo groups function as the ligands.
Surface Area \| Site Density / Protolysis \| Complex Formation \| Formatted Citation