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A Luminescent Hypercrosslinked Conjugated Microporous Polymer for Efficient Removal and Detection of Mercury Ions
Author(s) -
Xiang Lu,
Zhu Yunlong,
Gu Shuai,
Chen Dongyang,
Fu Xian,
Zhang Yindong,
Yu Guipeng,
Pan Chunyue,
Hu Yuehua
Publication year - 2015
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201500159
Subject(s) - conjugated microporous polymer , dibenzofuran , conjugated system , microporous material , fluorescence , detection limit , polymer , adsorption , mercury (programming language) , materials science , chemistry , photochemistry , organic chemistry , chromatography , physics , quantum mechanics , computer science , programming language
A hypercrosslinked conjugated microporous polymer (HCMP‐1) with a robustly efficient absorption and highly specific sensitivity to mercury ions (Hg 2+ ) is synthesized in a one‐step Friedel–Crafts alkylation of cost‐effective 2,4,6‐trichloro‐1,3,5‐triazine and dibenzofuran in 1,2‐dichloroethane. HCMP‐1 has a moderate Brunauer–Emmett–Teller specific surface (432 m 2 g −1 ), but it displays a high adsorption affinity (604 mg g −1 ) and excellent trace efficiency for Hg 2+ . The π–π* electronic transition among the aromatic heterocyclic rings endows HCMP‐1 a strong fluorescent property and the fluorescence is obviously weakened after Hg 2+ uptake, which makes the hypercrosslinked conjugated microporous polymer a promising fluorescent probe for Hg 2+ detection, owning a super‐high sensitivity (detection limit 5 × 10 −8 mol L −1 ).