Uptake of copper ions by carbon fiber/polymer hybrids prepared by tandem diazonium salt chemistry and in situ atom transfer radical polymerization

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• 作者：Samia Mahouche Chergui ; Nourredine Abbas ; Tarik Matrab ; Mireille Turmine ; Elisabeth Bon Nguyen ; Ré ; mi Losno ; Jean Pinson ; Mohamed M. Chehimi
• 刊名：Carbon
• 出版年：2010
• 出版时间：June 2010
• 年：2010
• 卷：48
• 期：7
• 页码：2106-2111
• 全文大小：321 K

文摘

Cyclam-functionalized polyglycidyl methacrylate, grafted on carbon fibres (CF-PGMA-Cy) was prepared by atom transfer radical polymerization using aryl diazonium salt initiators. These adsorption maximum capacity of CF-PGMA-Cy fibres for Cu(II) was found to be 28.6 mg/g at pH 5.2 and the adsorption kinetics fitted to the pseudo-second order model. Cyclic voltammetry of the (CF-PGMA-Cy)-supported copper ions indicated true electrochemical stripping of Cu(II) with detection of as low as 2 pmol of adsorbed Cu⁰. CF-PGMA-Cy fibres are thus efficient and reusable adsorbents that hold promises for the design of electrochemical sensors of metal ions.