PMID- 30665640 OWN - NLM STAT- MEDLINE DCOM- 20190130 LR - 20190130 IS - 1001-0742 (Print) IS - 1001-0742 (Linking) VI - 78 DP - 2019 Apr TI - One-step preparation of polyimide-inlaid amine-rich porous organic block copolymer for efficient removal of chlorophenols from aqueous solution. PG - 215-229 LID - S1001-0742(18)31949-1 [pii] LID - 10.1016/j.jes.2018.09.023 [doi] AB - A novel polyimide-inlaid amine-rich porous organic block copolymer (PI-b-ARPOP) was prepared via one-step polymerization by using different molar ratios of melamine (MA)/terephthalaldehyde (TA)/pyromellitic dianhydride (PMDA), at molar ratios of 4/3/1, 4/2/2 and 4/1/3. The copolymer contained both aminal groups belonging to ARPOP and imide groups belonging to PI, and the bonding styles of the monomers and growth orientations of the polymeric chains were diversiform, forming an excellent porous structure. Notably, MA/TA/PMDA (4/2/2) had a surface area and pore volume of 487.27 m(2)/g and 1.169 cm(3)/g, respectively. The adsorption performance of the materials towards 2,4-dichlorophenol (2,4-DCP) in ultra-pure water was systematically studied. The pH value of 7 was optimal in aqueous solution. Na(+) and Cl(-) ions did not negatively affect the adsorption process, while humic acid (HA) slightly decreased the capacity. The equilibrium time was 40 sec, and the maximum adsorption capacity reached 282.49 mg/g at 298 K. The removal process was endothermic and spontaneous, and the copolymer could maintain its porous structure and consistent performance after regeneration by treatment with alkali. Moreover, to further assess the practical applicability of the material, the adsorption performance towards 2,4-DCP in river water was also investigated. This paper demonstrated that the PI-b-ARPOP can be an efficient and practical adsorbent to remove chlorophenols from aqueous solution. CI - Copyright (c) 2018. Published by Elsevier B.V. FAU - Liu, Yanyang AU - Liu Y AD - Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China. FAU - Ou, Haijian AU - Ou H AD - Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China. FAU - Li, Shangqing AU - Li S AD - Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China. FAU - You, Qingliang AU - You Q AD - Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China. FAU - Liu, Huixian AU - Liu H AD - Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China. FAU - Liao, Guiying AU - Liao G AD - Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China. Electronic address: liaogy@cug.edu.cn. FAU - Wang, Dongsheng AU - Wang D AD - Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: wgds@rcees.ac.cn. LA - eng PT - Journal Article DEP - 20181005 PL - Netherlands TA - J Environ Sci (China) JT - Journal of environmental sciences (China) JID - 100967627 RN - 0 (Chlorophenols) RN - 0 (Polymers) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Adsorption MH - Chlorophenols/analysis/*chemistry MH - Kinetics MH - Polymers/*chemistry MH - Porosity MH - Water Pollutants, Chemical/analysis/*chemistry MH - Water Purification/*methods OTO - NOTNLM OT - 2,4-Dichlorophenol OT - Adsorption OT - Polyimide OT - Porous block copolymer OT - Schiff base EDAT- 2019/01/23 06:00 MHDA- 2019/01/31 06:00 CRDT- 2019/01/23 06:00 PHST- 2018/07/17 00:00 [received] PHST- 2018/09/21 00:00 [revised] PHST- 2018/09/25 00:00 [accepted] PHST- 2019/01/23 06:00 [entrez] PHST- 2019/01/23 06:00 [pubmed] PHST- 2019/01/31 06:00 [medline] AID - S1001-0742(18)31949-1 [pii] AID - 10.1016/j.jes.2018.09.023 [doi] PST - ppublish SO - J Environ Sci (China). 2019 Apr;78:215-229. doi: 10.1016/j.jes.2018.09.023. Epub 2018 Oct 5.