文献类型：期刊文献

英文题名：Facile preparation of porous organic copolymer based on triptycene and crown ether for efficient organic dye adsorption

作者：Xu, Ting[1];He, Yan[2];Qin, Ying[1];Zhao, Chengxi[1];Peng, Changjun[1];Hu, Jun[1];Liu, Honglai[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]East China Univ Technol, Sch Chem Biol & Mat Sci, Jiangxi Prov Key Lab Polymer Micro Nano Mfg & Dev, Nanchang 330013, Jiangxi, Peoples R China

年份：2018

卷号：8

期号：9

起止页码：4963

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20180604752561);WOS:【SCI-EXPANDED(收录号:WOS:000423898000052)】；

基金：This work is supported by the National Key Basic Research Program of China (2015CB251401) and the Natural Science Foundation of China (No. 21476070, 21776069).

语种：英文

外文关键词：Aromatic compounds - Crown ethers - Ethers - Porosity - Water treatment - Adsorption - Azo dyes

摘要：There has been great interest in the use of porous polymers to remove organic dyes because of their adjustable surface area and task-specific functionality. We chose a triptycene-based porous polymer to ensure high porosity, and introduced crown ether into the sketch of the copolymer to significantly enhance the affinity for the organic dye molecules. Novel porous organic copolymers of triptycene and crown-ether-15 (POP-TCE-15) were obtained by a simple Friedel-Crafts reaction, and were highly effective in removing organic dyes from aqueous solution. POP-TCE-15 exhibited the best performance, with a maximum adsorption capacity of methylene blue, rhodamine B, and methyl orange of 787.4 mg g(-1), 421.9 mg g(-1), and 64.8 mg g(-1), respectively, which is better than most reported adsorbents. Their adsorption rates and adsorption isotherms were well fitted with pseudo-second-order kinetic models and the Langmuir model. More importantly, POP-TCE-15 can be effectively regenerated and recycled at least 5 times without any loss of adsorption capacity. With a hierarchical porous structure, high surface area, high hydrophobicity, and excellent adsorption capacity for dyes, the POP-TCE polymers could be ideal adsorbents for water purification and treatment.