Mixed Matrix Membranes with Excellent CO2 Capture Induced by Nano‐Carbon Hybrids. Issue 8 (27th June 2017)

• Record Type: Journal Article
• Authors: Pan, Xinglong; Zhang, Jianqiang; Xue, Qingzhong; Li, Xiaofang; Ding, Degong; Zhu, Lei; Guo, Tianchao
• Is Part Of: ChemNanoMat. Volume 3:Issue 8(2017)
• Page Start: 560
• Page End: 568
• Publication Date: 2017-06-27
• Subjects: carbon nanotubes -- CO2 capture -- core/shell structures -- selective barriers -- transport channels; Nanochemistry -- Periodicals; Nanostructured materials -- Periodicals; Nanochemistry; Nanostructured materials; Periodicals; 541.2
• DOI: 10.1002/cnma.201700086
• Languages: English
• ISSNs: 2199-692X

Abstract

Abstract: 1 D 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 /N2 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. Abstract : As a novel filler, 1 D multi‐walled carbon nanotube/graphene oxide nanoribbons (MWCNT@GONRs) with low oxidation degree can enhance the gas‐separation performance of mixed matrix membranes (MMMs) due to the synergistic effect of the MWCNTs core and GONRs shell.