Rybak Aleksandra, Rybak Aurelia, Boncel Sławomir, Kolanowska Anna, Kaszuwara Waldemar, Kolev Spas D
Faculty of Chemistry, Silesian University of Technology Strzody 7 44-100 Gliwice Poland
Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology Gliwice Poland.
RSC Adv. 2022 May 4;12(21):13367-13380. doi: 10.1039/d2ra01585d. eCollection 2022 Apr 28.
The need to reduce greenhouse gas emissions dictates the search for new methods and materials. Here, a novel type of inorganic-organic hybrid materials Fe@MWCNT-OH/SPEEK (with a new type of CNT characterized by increased iron content, 5.80 wt%) for CO separation is presented. The introduction of nanofillers into a polymer matrix has significantly improved hybrid membrane gas transport (, , , and ), and magnetic, thermal, and mechanical parameters. It was found that magnetic casting has improved the alignment and dispersion of Fe@MWCNT-OH carbon nanotubes. At the same time, CNT and polymer chemical modification enhanced interphase compatibility and membrane CO separation efficiency. The thermooxidative stability, and mechanical and magnetic parameters of composites were improved by increasing new CNT loading. Cherazi's model turned out to be suitable for describing the CO transport through analyzed hybrid membranes. The comparison of the transport and separation properties of the tested membranes with the literature data indicates their potential application in the future and the direction of further research.
减少温室气体排放的需求促使人们寻找新的方法和材料。在此，提出了一种新型的无机-有机杂化材料Fe@MWCNT-OH/SPEEK（一种新型的碳纳米管，其铁含量增加，为5.80 wt%）用于CO分离。将纳米填料引入聚合物基体显著改善了杂化膜的气体传输性能（渗透率、选择性、扩散系数和溶解度）以及磁性能、热性能和机械性能。研究发现，磁铸法改善了Fe@MWCNT-OH碳纳米管的排列和分散。同时，碳纳米管和聚合物的化学改性增强了相间相容性和膜的CO分离效率。通过增加新型碳纳米管的负载量，提高了复合材料的热氧化稳定性、机械性能和磁性能。结果表明，Cherazi模型适用于描述CO在分析的杂化膜中的传输。将测试膜的传输和分离性能与文献数据进行比较，表明了它们在未来的潜在应用以及进一步研究的方向。
