Nanoscale MOF/organosilica membranes on tubular ceramic substrates for highly selective gas separation
Nanoscale MOF/organosilica membranes on tubular ceramic substrates for highly selective gas separation
复制标题
管状陶瓷基底上的纳米级 MOF/有机硅膜，用于高选择性气体分离
DOI：
10.1039/c7ee00830a
复制
发表时间：
2017-08-01
影响因子：
32.5
通讯作者：
Chen, Banglin
中科院分区：
文献类型：
--
作者：
Kong, Chunlong;Du, Hongbing;Chen, Banglin
在这项研究中，我们提出了一个通用的和有效的策略，设计和制备新型的基于MOF的杂化膜上的管状陶瓷基板。本发明制备的有机硅纳米复合膜薄而致密，结构合理，与管状陶瓷基体结合紧密。所得膜显示出高的气体分离性能，同时具有高选择性和高渗透速率，这可以很好地与母体MOFs相关。如此制备的ZIF-8和MIL-53-NH 2掺入的有机二氧化硅纳米复合材料膜已被证明是用于高H-2-浓度下的一些性能最好的基于M0 F的膜。（H-2/CH 4选择性= 26.5，H-2渗透性= 1.06 × 10（-6）mol m（-2）s（-1）Pa-1）和CO2选择性（CO2/CH 4选择性= 18.2，CO2渗透率= 1.44 × 10（-7）mol m（-2）s（-1）Pa-1）分离。
In this study, we present a general and efficient strategy to design and prepare novel MOF-based hybrid membranes on a tubular ceramic substrate. Thin and compact MOF/organosilica nano-composite membranes can be rationally formed and tightly bound with the tubular ceramic substrate. The resulting membranes display high gas separation performance with both high selectivity and high permeation rate, which can be well correlated to the parent MOFs. The as-prepared ZIF-8 and MIL-53-NH2 incorporated organosilica nanocomposite membranes have been demonstrated as some of the best performing MOF-based membranes for highly H-2-(H-2/CH4 selectivity = 26.5, H-2 permeance = 1.06 x 10(-6) mol m(-2) s(-1) Pa-1) and CO2-selective (CO2/CH4 selectively = 18.2, CO2 permeance = 1.44 x 10(-7) mol m(-2) s(-1) Pa-1) separations, for H-2/CH4 (1 : 1) and CO2/CH4 (1 : 1) mixtures at room temperature, respectively.