Flow synthesis of a novel zirconium-based UiO-66 nanofiltration membrane and its performance in the removal of p-nitrophenol from water

作     者：Feichao Wu Yanling Wang Xiongfu Zhang Feichao Wu;Yanling Wang;Xiongfu Zhang

作者机构：State Key Laboratory of Fine ChemicalsSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2020年第14卷第4期

页      面：651-660页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.21476039 21878032 and 21076030) 

主　　题：UiO-66 membrane flow synthesis nanofiltra-tion p-nitrophenol removal 

摘      要：In this work,a thin zirconium-based UiO-66 membrane was successfully prepared on an alumina hollow fiber tube by flow synthesis,and was used in an attempt to remove p-nitrophenol from water through a nanofiltration *** main factors,including flow rate and synthesis time,were investigated to optimize the conditions for membrane *** optimal synthesis conditions,a thin UiO-66 membrane of approximately 2 um in thickness was fabricated at a flow rate of4 mL.h for 30 *** p-nitrophenol rejection rate for the as-prepared UiO-66 membrane applied in the removal of p-nitrophenol from water was only 78.1%due to the existence of membrane defects caused by coordinative defects during membrane ***-synthetic modification of the UiO-66 membrane was carried out using organic linkers with the same flow approach to further improve the nanofiltration *** result showed that the p-nitrophenol rejection for the post-modified membrane was greatly improved and reached over 95%.Moreover,the post-modified UiO-66 membrane exhibited remarkable long-term operational stability,which is vital for practical application.