期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 387, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2019.121949
关键词
Conjugated microporous polymers; pi-Conjugated networks; Iodine uptake; Detection and removal of tetracycline; Environmental remediation
资金
- National Natural Science Foundation of China [21871104, 21621001]
- National Key Research and Development Program of China [2016YFB0701100]
- 111 project the Ministry of Education of China [B17020]
In this work, two multifunctional conjugated microporous polymers (CMP-LS7-8) were obtained via the Pd-catalyzed Suzuki coupling reactions of 2,4,6-tris(4-bromophenyl)pyridine with two aromatic borates. The Brunauer-Emmett-Teller (BET) surface areas of CMP-LS7-8 were calculated to be 507 and 2028 m(2) g(-1). CMP-LS7-8 exhibit excellent volatile iodine adsorption about 2.77 and 5.29 g g(-1), respectively, and outstanding reversible adsorption. High adsorption capacity should be attributed to an integrated effect by excellent porous characteristics, effective sorption sites, and expanded n-conjugated network. In addition, this platform integrated two functions of sensing and adsorption of tetracycline (TC) into one material. The excellent luminescence of CMP-LS7-8 can be effectively quenched by TC, which demonstrates they can be acted as new sensitive and selective fluorescence probes toward TC. Simultaneously, CMP-LS7-8 also display high adsorption ability of TC. The adsorption kinetics of TC suggested that the process of adsorption followed a pseudo-second-order model, and the adsorption behaviour of these polymers fitted with the Langmuir model. These results suggest that CMP-LS7-8 posess high volatile iodine capture and exceptional TC detection and removal performance, which can be promising candidates for environmental remediation.
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