Mao Hanping, Liu Zhongshou
Institute of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, PR China.
Institute of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Jan 15;189:366-373. doi: 10.1016/j.saa.2017.08.036. Epub 2017 Aug 15.
In this paper, a composite sensing platform for Hg(II) optical sensing and removal was designed and reported. A core-shell structure was adopted, using magnetic FeO nanoparticles as the core, silica molecular sieve MCM-41 as the shell, respectively. Two rhodamine derivatives were synthesized as chemosensor and covalently immobilized into MCM-41 tunnels. Corresponding composite samples were characterized with SEM/TEM images, XRD analysis, IR spectra, thermogravimetry and N adsorption/desorption analysis, which confirmed their core-shell structure. Their emission was increased by Hg(II), showing emission turn on effect. High selectivity, linear working curves and recyclability were obtained from these composite samples.
本文设计并报道了一种用于汞（II）光学传感与去除的复合传感平台。采用了核壳结构，分别以磁性FeO纳米颗粒为核，二氧化硅分子筛MCM - 41为壳。合成了两种罗丹明衍生物作为化学传感器，并将其共价固定在MCM - 41孔道中。通过扫描电子显微镜/透射电子显微镜图像、X射线衍射分析、红外光谱、热重分析和氮吸附/脱附分析对相应的复合样品进行了表征，证实了它们的核壳结构。汞（II）使它们的发射增强，呈现出发射开启效应。这些复合样品具有高选择性、线性工作曲线和可回收性。
