• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Smart Photonic Crystal Hydrogel Material for Uranyl Ion Monitoring and Removal in Water
【24h】

Smart Photonic Crystal Hydrogel Material for Uranyl Ion Monitoring and Removal in Water

机译：用于水中铀酰离子监测和去除的智能光子晶体水凝胶材料

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

Uranyl ion (UO22+) pollution is a serious environmental problem, and developing novel adsorption materials is essential for UO22+ monitoring and removal. Although some progress is achieved, it is still a challenging task to develop an adsorption material with indicating signal for real-time evaluation of the adsorption degree and the UO22+ concentration. Herein, this paper describes a smart photonic crystal hydrogel (PCH) material, which not only can be used for real-time monitoring function but also can be utilized for UO22+ removal based on the chelation of UO22+ with ligand groups in PCH material. The working principle is based on the binding of a uranyl ion to multiple ligand groups, which results in the shrinkage of PCH material and triggers a blue-shift of diffraction wavelength. Consequently, the adsorption degree and the UO22+ concentration can be sensitively evaluated by measuring the diffraction shift or observing the color change with naked eye. With this PCH material, the lowest detectable concentration for UO22+ is 10 x 10(-9) (M), and the maximum adsorption capacity at 298 K is 169.67 mmol kg(-1). In addition, this material also holds good selectivity and regeneration feature, and shows desirable performance for UO22+ analysis in real water samples.
机译：铀酰离子（UO22 +）污染是一个严重的环境问题，开发新型吸附材料对于UO22 +的监测和清除至关重要。尽管取得了一些进展，但开发一种具有指示信号的吸附材料以实时评估吸附程度和UO22 +浓度仍然是一项艰巨的任务。本文中，本文介绍了一种智能光子晶体水凝胶（PCH）材料，它不仅可以用于实时监测功能，而且可以基于UO22 +与PCH材料中配体基团的螯合作用用于UO22 +的去除。工作原理基于铀酰离子与多个配体基团的结合，这会导致PCH材料收缩并触发衍射波长的蓝移。因此，可以通过测量衍射位移或用肉眼观察颜色变化来灵敏地评估吸附度和UO22 +浓度。使用这种PCH材料，UO22 +的最低可检测浓度为10 x 10（-9）（M），在298 K时的最大吸附容量为169.67 mmol kg（-1）。此外，这种材料还具有良好的选择性和再生特性，并在实际水样中显示出对UO22 +分析的理想性能。

著录项

  • 来源
    《Advanced Functional Materials》 |2017年第42期|1702147.1-1702147.7|共7页
  • 作者

    Xiao Fubing; Sun Yongfang; Du Wenfang; Shi Wenhui; Wu Yan; Liao Shuzhen; Wu Zhaoyang; Yu Ruqin;

  • 作者单位

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hydrogels; monitoring and removal; photonic crystals; uranyl ions;

    机译：水凝胶;监测和去除;光子晶体;铀酰离子;

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