PES/改性UiO-66复合膜的制备及其重金属离子分离性能研究
Fabrication of PES/modified UiO-66 composite membrane for separation of heavy metal ions
曹慧 1汤静 2任伟滔 3周琼1
作者信息
- 1. 中国石油大学(北京)新能源与材料学院,北京 102249
- 2. 天津市静海区人民政府华康街道办事处,天津 301617
- 3. 华北电力大学新能源学院,北京 102206
- 折叠
摘要
制备了锆1,4-羧基苯(UiO-66)系列金属有机骨架(MOF)材料,对比了不同MOF材料对重金属离子的吸附性能,并制备了聚醚砜/聚醚酰亚胺/改性MOF(PES/PEI/MOF)复合膜,对比了MOF添加量对膜重金属离子吸附和渗透性能的影响.结果表明,在UiO-66系列MOF材料中,UiO-66-NH2对重金属离子的吸附性能最好;在其负载量为15%(质量分数,下同)时,复合膜对重金属离子的截留性能最好.
Abstract
A series of metal organic framework(MOF)materials based on zirconium 1,4-carboxybenzene(UiO-66)were prepared,and their adsorption properties for heavy metal ions were comparatively investigated.The poly(ether sulfone)/poly(ether imide)/modified MOF composite membranes were then prepared,and the effect of MOF content on the ad-sorption and permeability of heavy metal ions was compared for the as-prepared membranes.The results indicated that UiO-66-NH2 exhibited the best adsorption performance for heavy metal ions among the prepared MOF materials,and its retention performance for heavy metal ions was optimal at a loading of 15 wt%in the composite membranes.
关键词
锆1,4-羧基苯/复合膜/重金属离子/吸附性能Key words
zirconium 1,4-carboxybenzene/composite membrane/heavy metal ion/adsorption property引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据