Uptake of copper ions by carbon fiber/polymer hybrids prepared by tandem diazonium salt chemistry and in situ atom transfer radical polymerization
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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DOI：
10.1016/j.carbon.2010.01.050
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发表时间：
2010-06
期刊：
影响因子：
10.9
通讯作者：
Samia Chergui;N. Abbas;Tarik Matrab;M. Turmine;E. B. Nguyen;R. Losno;J. Pinson;M. Chehimi
中科院分区：
文献类型：
--
作者：
Samia Chergui;N. Abbas;Tarik Matrab;M. Turmine;E. B. Nguyen;R. Losno;J. Pinson;M. Chehimi
使用芳基重氮盐引发剂通过原子转移自由基聚合制备接枝在碳纤维上的环酰胺官能化聚甲基丙烯酸缩水甘油酯（CF-PGMA-Cy）。在 pH 5.2 时，CF-PGMA-Cy 纤维对 Cu(II) 的最大吸附容量为 28.6mg/g，吸附动力学符合伪二级模型。 (CF-PGMA-Cy) 负载的铜离子的循环伏安法表明 Cu(II) 的真正电化学剥离，检测到吸附的 Cu0 含量低至 2pmol。因此，CF-PGMA-Cy 纤维是高效且可重复使用的吸附剂，为金属离子电化学传感器的设计带来了希望。
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 28.6mg/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 2pmol 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.