文献类型：期刊文献

英文题名：Fast adsorption of methylene blue, basic fuchsin, and malachite green by a novel sulfonic-grafted triptycene-based porous organic polymer

作者：Li, Cheng[1,2];He, Yan[1,2,3];Zhou, Li[1,2];Xu, Ting[1,2];Hu, Jun[1,2];Peng, Changjun[1,2];Liu, Honglai[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[3]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：73

起止页码：41986

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20185206290920);WOS:【SCI-EXPANDED(收录号:WOS:000454837400035)】；

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

语种：英文

外文关键词：Dyes - Carbonate minerals - Stripping (dyes) - Organic polymers - Aromatic compounds - Wastewater treatment - Adsorption - Grafting (chemical)

摘要：In this study, a novel triptycene-based porous polymer grafted with sulfonic acid (TPP-SO3H) was successfully synthesized by the post-synthetic modification of the non-functionalized polymer TPP. The polymer TPP-SO3H was well-characterized and was found to be a fast and effective absorbent for the cationic dyes methylene blue (MEB), basic fuchsin (BF), and malachite green (MG), with over 95% removal being observed within 10 min from initial concentrations of 100 mg L-1, 100 mg L-1, and 300 mg L-1, respectively. The adsorption process for MEB, BF, and MG was pH-dependent. The adsorption behaviours for MEB, BF, and MG follow pseudo-second-order kinetics and fit the Langmuir model. Moreover, the maximum adsorption capacities of MEB, BF, and MG at room temperature were 981.8 mg g(-1), 586.2 mg g(-1), and 1942.5 mg g(-1), respectively. It is worth noting that the values of the MEB, BF, and MG adsorption capacities on TPP-SO3H were 5.5, 3, and 1.8 times that of the non-functionalized polymer TPP based on the same adsorbent weight. It is suggested that (i) there are strong electrostatic attractions between the sulfonic groups of the TPP-SO3H and cationic dyes and (ii) the higher surface area and good porosity may contribute to the high dye adsorption capacity. Furthermore, TPP-SO3H exhibited good cyclic stability, which can be regenerated at least five times without a significant loss of adsorption capacity. Therefore, the facile strategy synthesis, as well as the excellent adsorption capacity and reusability, make polymer TPP-SO3H an attractive adsorbent for wastewater treatment.