Adsorption Mechanism Study of Magnetic EDTA-Chitosan on Cu (II) Ions of Solution

Abstract:

A novel magnetic adsorbent, magnetic EDTA/chitosan nanobeads was synthesized. The adsorption mechanisms of magnetic EDTA/chitosan nanobeads for removal of Cu (II) ions from aqueous solution were investigated in this paper. The interaction mechanisms of Cu²⁺ adsorption onto magnetic EDTA/chitosan nanobeads and active sites were interpreted by fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Uniting the analysis results of FTIR and XPS, the functional groups of participating in chelating were confirmed, and the results indicated that Cu²⁺ adsorption was mainly through interactions with electron donating atom N and O. This adsorption property was similar to N·O-type chelating agent and the adsorption mechanism was put forward. This work was very significant to control adsorption influence factor and improve adsorption capacity of magnetic EDTA-chitosan nanobeads, and then succeed to apply to magnetic adsorption fields.

• Periodical: Advanced Materials Research (Volume 937)
• Pages: 218-223
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.937.218
• Online since: May 2014
• Authors: Run Hua Qin, Feng Sheng Li, Wei Jiang, Ling Yun Hao*
• Keywords: Adsorption Mechanism, Chelation, Cu (II) Ions, Magnetic Adsorbent

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