• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Functionalized Mesoporous Photonic Crystal Film for Ultrasensitive Visual Detection and Effective Removal of Mercury (Ⅱ) Ions in Water
【24h】

Functionalized Mesoporous Photonic Crystal Film for Ultrasensitive Visual Detection and Effective Removal of Mercury (Ⅱ) Ions in Water

机译：用于超敏视觉检测的官能化的介孔光子晶体膜，并有效地去除水中汞（Ⅱ）离子

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

摘要

Mercury ion (Hg2+) contamination is a worldwide serious environment problem; exploring smart sensing and adsorption materials are urgently demanded for Hg2+ monitoring and removal. Herein, a simple 1D photonic crystal to first ever feature capabilities of visually quantitative determination and effective adsorption toward Hg2+ is facilely constructed by integrating a specifically designed thiourea-functionalized nanocopolymer layer with a mesoporous TiO2 layer. Based on strong chelation and porous structure, Hg2+ is easily adsorbed on the copolymer and triggers vertically volumetric shrinkage, resulting in highlighted wavelength blue-shifts and color changes in a broad Hg2+ level scope. Utilizing the adsorption characteristic, Hg2+ existing in aqueous media can be effectively removed by the photonic film with a remarkable uptake capacity of 739.6 mg g(-1). This portable nanolayered film exhibits full regeneration, facile recovery, desirable selectivity toward Hg2+, and shields interference from other metal ions, which enables future application for environmental determination and remediation. Furthermore, a novel nanopolymer-based two-regime Hg2+-capturing mechanism is first revealed by quartz crystal microbalance with dissipation monitoring, providing valuable references for future relevant adsorption researches.
机译：汞离子（HG2 +）污染是一个全球的严重环境问题;迫切需要探索智能传感和吸附材料，迫切需要HG2 +监测和拆卸。这里，通过将特异性设计的硫脲官能化的纳米聚合层与介孔TiO 2层相容，将简单的1D光子晶体与视觉定量测定和有效吸附的第一特征能力进行视觉定量测定和有效吸附的特征能力。基于强螯合和多孔结构，HG2 +容易吸附在共聚物上并触发垂直体积收缩，导致突出的波长蓝移和颜色变化宽的HG2 +水平范围。利用吸附特性，光子膜可以有效地除去含水介质中存在的HG2 +，具有739.6mg（-1）的显着摄取能力。该便携式纳米薄膜具有完全再生，容易恢复，理想的选择性，对HG2 +，以及屏蔽来自其他金属离子的干扰，这使得未来的环境测定和修复。此外，首先通过用耗散监测的石英晶体微稳定地揭示了一种新的纳米聚合物的两种典范HG2 +-花凝血机构，为未来的相关吸附研究提供有价值的参考。

著录项

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