摘要
将分子筛β置于前驱体溶液中的多孔性阴离子交换树脂小球内部进行结晶,在移除牺牲模板离子交换树脂后得到坚固的分子筛β小球.以此为基底在其表面包覆疏水性IISERP-COF2,样品记为zeoliteβ@IISERP-COF2.共价有机骨架材料(COFs)的疏水性有利于分子筛在潮湿环境中吸附CO_2,空气湿度为79%时,zeoliteβ@IISERP-COF2的吸水量为2.1%(质量分数),比分子筛β的吸水量(11.0%)显著降低.
Zeolite β was crystallized from precursor solutions within the pores of anion exchange resin beads.Resin beads as sacrificial template was removed by calcination leaving stable beads of zeolite β. We use the zeolite β beads as substrate to cover a layer hydrophobic IISERP-COF2,termed as zeolite β@IISERP-COF2.There is definite advantage in transferring the hydrophobicity of COFs to zeolite to aid their adsorb CO2 in humid environment. Water adsorption capacity（measured under 79% humidity） of zeolite β@ IISERP-COF2（2. 1%） shows a significant decrease compared to that of zeolite β（11. 0%）.
作者
黄薇薇
任家旺
方千荣
Valentin VALTCHEV
HUANG Weiwei;REN Jiawang;FANG Qianrong;Valentin VALTCHEV(College of Chemistry, Jilin University, Changchun 130012, China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2018年第6期1127-1131,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号：21571078,21571079)资助
关键词
分子筛β小球
共价有机骨架材料
核壳结构
疏水性
Zeolite β beads
Covalent organic frameworks （COFs）
Core-shell
Hydrophobicity
