• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Preparation of core-shell ion imprinted nanoparticles via photoinitiated polymerization at ambient temperature for dynamic removal of cobalt in aqueous solution
【24h】

Preparation of core-shell ion imprinted nanoparticles via photoinitiated polymerization at ambient temperature for dynamic removal of cobalt in aqueous solution

机译：在环境温度下通过光引发聚合制备核-壳离子印迹纳米粒子，用于动态去除水溶液中的钴

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, novel core-shell ion imprinted polymers were firstly synthesized by photoinitiated polymerization (P-IIPs) for the selective separation of Co(II) in aqueous solution. In contrast to thermal polymerization, photoinitiated polymerization exhibits faster initiation rate, only a quarter of the former, and can be performed at room temperature. Subsequently, extensive characterizations were performed using FT-IR, SEM, TEM, XRD, and TGA. Adsorption isotherm and kinetics studies were carried out in batch adsorption experiments. Furthermore, the removal of Co(II) from aqueous solution was investigated at different conditions by using P-IIPs as the adsorbent in the fixed-bed column and the parameters were discussed and optimized. The data can be well fitted by the Thomas model, offering some model parameters for process design. Compared with non-imprinted polymers, P-IIPs displayed remarkable selectivity toward Co(II). Moreover, the synthesized polymers possessed excellent desorption performance and regeneration property with a desorption efficiency up to 94.1%. P-IIPs enabled the selective extraction of Co(II) successfully from sediment samples with satisfactory recovery. The above mentioned results indicate that P-IIPs are promising high-performance, low-energy and environmentally friendly adsorbents for effectively removing Co(II) from aqueous solution.
机译：在这项工作中，首先通过光引发聚合（P-IIPs）合成了新颖的核-壳离子印迹聚合物，以选择性分离水溶液中的Co（II）。与热聚合相反，光引发的聚合反应显示出更快的引发速率，仅为前者的四分之一，并且可以在室温下进行。随后，使用FT-IR，SEM，TEM，XRD和TGA进行了广泛的表征。吸附等温线和动力学研究是在间歇吸附实验中进行的。此外，以固定床色谱柱中的P-IIPs为吸附剂，研究了在不同条件下从水溶液中去除Co（II）的过程，并对参数进行了讨论和优化。数据可以通过Thomas模型很好地拟合，从而为过程设计提供一些模型参数。与非印迹聚合物相比，P-IIPs对Co（II）表现出显着的选择性。此外，合成的聚合物具有优异的解吸性能和再生性能，解吸效率高达94.1％。 P-IIPs能够成功地从沉积物样品中选择性提取Co（II），回收率令人满意。上述结果表明，P-IIPs有望成为高性能，低能耗和环保的吸附剂，可有效地从水溶液中去除Co（II）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号