A thermally stable and reversible microporous hydrogen-bonded organic framework: aggregation induced emission and metal ion-sensing properties

被引：83
作者：
Zhou, Hui [1 ]
Ye, Qun [1 ]
Wu, Xiangyang [2 ]
Song, Jing [1 ]
Cho, Ching Mui [1 ]
Zong, Yun [1 ]
Tang, Ben Zhong [3 ]
Hor, T. S. Andy [1 ,4 ]
Yeow, Edwin Kok Lee [2 ]
Xu, Jianwei [1 ,4 ]
机构：
[1] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore
[2] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore
[3] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
[4] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2015年 / 3卷 / 45期
关键词：
SURFACE-AREA; SEPARATION; STABILITY; GAS; CONSTRUCTION; LUMINESCENCE; FLUORESCENCE; ADSORPTION; DESIGN; SITES;
D O I：
10.1039/c5tc02790j
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A microporous hydrogen-bonded organic framework (HOF) derived from a polyhedral oligomeric silsesquioxane (POSS) intermediate and an aggregation-induced emission (AIE) luminogen tetraphenylethene (TPE) derivative has been synthesized and structurally characterized by various methods. This unique HOF exhibits a permanent porosity with a Brunauer-Emmett-Teller (BET) surface area of 101.9 m(2) g(-1). This HOF could be well dispersed in organic solvents in the form of nanoparticles with a size of a few hundred nanometers. These nanoparticles are highly fluorescent in organic solution, and exhibit a high fluorescence quenching selectivity towards copper ions. Furthermore, the fluorescence of this HOF could be recovered by the removal of copper ions upon addition of cyanide and, more interestingly, this process could be repeated several times without considerably sacrificing the sensing activity towards copper ions.
引用
收藏
页码：11874 / 11880
页数：7
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