Synthesis of Prussian blue-embedded porous polymer for detection and removal of Cs ions
Synthesis of Prussian blue-embedded porous polymer for detection and removal of Cs ions
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DOI：
10.1016/j.polymer.2018.11.001
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发表时间：
2018-12
期刊：
影响因子：
4.6
通讯作者：
Ho Namgung;Y. Gwon;Jongho Kim;Geunseok Jang;S. E. Pepper;M. Ogden;K. Whittle;L. Harwood;T. Lee
中科院分区：
文献类型：
--
作者：
Ho Namgung;Y. Gwon;Jongho Kim;Geunseok Jang;S. E. Pepper;M. Ogden;K. Whittle;L. Harwood;T. Lee
在合成普鲁士蓝（PB）配位聚合物（COP）的过程中，将PB简单地引入到由1，1，2，2-四（4-羧基苯基）乙烷和锌离子组成的COP中，制备了PB嵌入的COP。PB-COP是通过聚集诱导发射从固态的强荧光四苯乙烯基团制备的具有绿色发射（490 nm）的微米级颗粒。PB-COP呈颗粒状，粒径为1 ~ 6 μm。由于PB在PB-COP中有效地吸附Cs离子，PB-COP的微观结构被降解为更小的颗粒，沿着的是PB-COP的绿色荧光的降低。PB-COP的绿色发射的这种减少被用作Cs离子存在的信号，其中发现Cs离子的检测限为73.8 ppb。PB-COP杂化材料既可作为高效的Cs离子吸附剂，又可作为Cs离子的传感器，实现Cs离子的同时去除和检测。
A Prussian blue (PB)-embedded coordination polymer (COP) was prepared by simple incorporation of PB into a COP composed of 1,1,2,2-tetrakis(4-carboxyphenyl)ethane and the Zn ion during the synthesis of COP. The PB-COP was prepared as micro-sized particles with green emission (490 nm) from the strongly fluorescent tetraphenylethene group in the solid state through aggregation-induced emission. The PB-COP showed particle shape with sizes ranging from 1 to 6 μm. As the PB in PB-COP efficiently adsorbed Cs ions, the microstructure of PB-COP was degraded to smaller particles, along with a concomitant decrease in the green fluorescence of the PB-COP. Such a decrease in the green emission of PB-COP was used as a signal for the presence of Cs ions, in which the limit of detection for Cs ions was found to be 73.8 ppb. The hybridized material of the PB-COP can be used as both an efficient adsorbent and a sensor for Cs ions, achieving simultaneous removal and detection.