期刊
RSC ADVANCES
卷 5, 期 130, 页码 107964-107969出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra17114h
关键词
-
资金
- National Natural Science Foundation of China [21277048, 21505046]
In this work, we for the first time developed a visual and fluorescent dual probe for hypochlorite (ClO-) based on stimuli-responsive valence-tautomeric infinite coordination polymer (ICP) nanoparticles encapsulated with a fluorescent dye, i.e., rhodamine B (RhB). In the absence of ClO-, the as-formed RhB@{Co(3,5-dbsq)(3,5-dbcat)(bix)} ICP nanoparticles are well dispersed and quite stable in aqueous solution. However, the addition of ClO- into the dispersion of RhB@{Co(3,5-dbsq)(3,5-dbcat)(bix)} destroys the {Co(3,5-dbsq)(3,5-dbcat)(bix)} network structure, resulting in the release of RhB from ICP nanoparticles into the solvent. As a consequence, the color of the dispersion changed from purple to orange-red and, in the meantime, the fluorescence of RhB turns on, which constitutes a new mechanism for colorimetric and fluorescence dual-model sensing of ClO-. With the method demonstrated here, the ClO- in tap water can be easily visualized by the naked eye and detected quantitatively through double channels. This study not only offers a new method for on-the-spot visible detection of ClO- in environmental samples, but also provides a strategy for designing dual mode sensing mechanisms based on the stimulus response of valence-tautomeric ICP nanomaterials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据