Mixed Matrix Membranes with Excellent CO2 Capture Induced by Nano-Carbon Hybrids

被引:15
|
作者
Pan, Xinglong [1 ,2 ]
Zhang, Jianqiang [2 ]
Xue, Qingzhong [1 ,2 ]
Li, Xiaofang [2 ]
Ding, Degong [2 ]
Zhu, Lei [2 ]
Guo, Tianchao [2 ]
机构
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China
[2] China Univ Petr, Coll Sci, Qingdao 266580, Shandong, Peoples R China
来源
CHEMNANOMAT | 2017年 / 3卷 / 08期
关键词
carbon nanotubes; CO2; capture; core/shell structures; selective barriers; transport channels; DIELECTRIC-PROPERTIES; SEPARATION; FILLERS; PERMEABILITY; ENHANCEMENT; NANOSCROLLS; PERFORMANCE; NANOTUBES; CO2/N-2;
D O I
10.1002/cnma.201700086
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
1D multi-walled carbon nanotube/graphene oxide nanoribbon (MWCNT@GONRs) hybrids were prepared using a chemical method as fillers for Pebax-based mixed matrix membranes (MMMs) with excellent CO2 separation performance. Herein, the GONRs shell provided a selective barrier and large gas adsorption area, which contributed to enhancement of gas selectivity, while MWCNTs core with smooth internal surface acted as a rapid transport channel, which improved the gas permeability. It is found that MMMs with 1 wt% loading showed the highest separation factor (80 for CO2/N-2 and 23 for CO2/CH4) and high CO2 permeability, far surpassing the upper bound line. Therefore, the synergistic effect of the MWCNTs core and GONRs shell in MWCNT@GONRs nanohybrids can effectively enhance the gas-separation performance of MMMs at low loading. The unique microstructures, ease of synthesis and low filled loading make MWCNT@GONRs promising candidates in post-combustion and sustainable chemistry.
引用
收藏
页码:560 / 568
页数:9
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