A Luminescent Hypercrosslinked Conjugated Microporous Polymer for Efficient Removal and Detection of Mercury Ions
A Luminescent Hypercrosslinked Conjugated Microporous Polymer for Efficient Removal and Detection of Mercury Ions
复制标题
用于有效去除和检测汞离子的发光超交联共轭微孔聚合物
DOI：
10.1002/marc.201500159
复制
发表时间：
2015
影响因子：
4.6
通讯作者：
Hu Yuehua
中科院分区：
文献类型：
--
作者：
Xiang Lu;Zhu Yunlong;Gu Shuai;Chen Dongyang;Fu Xian;Zhang Yindong;Yu Guipeng;Pan Chunyue;Hu Yuehua
采用具有成本效益的2,4,6 -三氯- 1,3,5 -三嗪和二苯并呋喃在1,2 -二氯乙烷中一步Friedel-Crafts烷基化法合成了一种对汞离子（Hg2+）具有高效吸附和高特异敏感性的超交联共轭微孔聚合物（HCMP - 1）。HCMP‐1具有中等的brunauer - emmet - teller比表面（432 m2g−1），但对Hg2+具有较高的吸附亲和力（604 mg g−1）和优良的痕量效率。芳香族杂环间的π -π *电子跃迁使HCMP‐1具有较强的荧光特性，且Hg2+摄取后荧光明显减弱，具有超高的灵敏度（检出限5 × 10−8mol L−1），是一种很有前途的Hg2+荧光探针。
A hypercrosslinked conjugated microporous polymer (HCMP‐1) with a robustly efficient absorption and highly specific sensitivity to mercury ions (Hg2+) 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 m2g−1), but it displays a high adsorption affinity (604 mg g−1) and excellent trace efficiency for Hg2+. The π–π* electronic transition among the aromatic heterocyclic rings endows HCMP‐1 a strong fluorescent property and the fluorescence is obviously weakened after Hg2+uptake, which makes the hypercrosslinked conjugated microporous polymer a promising fluorescent probe for Hg2+detection, owning a super‐high sensitivity (detection limit 5 × 10−8mol L−1).