Diamine-appended metal-organic frameworks: enhanced formaldehyde-vapor adsorption capacity, superior recyclability and water resistibility

被引：44
|
作者：
Wang, Zhong [1 ,2 ]
Wang, WenZhong [1 ]
Jiang, Dong [1 ,2 ]
Zhang, Ling [1 ]
Zheng, Yali [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
DALTON TRANSACTIONS | 2016年 / 45卷 / 28期
基金：
中国国家自然科学基金;
关键词：
MICROEMULSION-ASSISTED SYNTHESIS; EFFICIENT REMOVAL; ACTIVATED CARBON; SELECTIVITY; AIR; CO2; SITES; FUNCTIONALIZATION; ENCAPSULATION; MIL-101(CR);
D O I：
10.1039/c6dt01696k
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Capturing formaldehyde (HCHO) from indoor air with porous adsorbents still faces challenges due to their low uptake capacity, difficult regeneration, and especially, the sorption capacity reduction that is caused by the competitive adsorption of H2O when exposed to a humid atmosphere. In this work, MIL-101 is modified with ethylenediamine (ED) on its open-metal sites to substantially improve the HCHO adsorption properties. The HCHO uptake capacity of modified MIL-101 can be up to 5.49 mmol g(-1) in this study, which is among the highest-levels of various adsorbents reported thus far. Moreover, this modification both improved the material's recyclability and water resistibility, allowing for cyclic and selective tests with stable adsorption capacities, revealing the potential utility of amine-modified MOFs for indoor air purification.
引用
收藏
页码：11306 / 11311
页数：6
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