Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture
Facilitated transport membranes obtained by coupling polyvinylamine with highly charged carboxymethylated nanocellulose fibers were studied considering both water sorption and gas permeation experiments. In particular, the effect of the L-arginine as a mobile carrier was investigated to understand p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/6/442 |
| _version_ | 1827689915058487296 |
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| author | Riccardo Casadei Elham Firouznia Marco Giacinti Baschetti |
| author_facet | Riccardo Casadei Elham Firouznia Marco Giacinti Baschetti |
| author_sort | Riccardo Casadei |
| collection | DOAJ |
| description | Facilitated transport membranes obtained by coupling polyvinylamine with highly charged carboxymethylated nanocellulose fibers were studied considering both water sorption and gas permeation experiments. In particular, the effect of the L-arginine as a mobile carrier was investigated to understand possible improvements in CO<sub>2</sub> transport across the membranes. The results show that L-arginine addition decreases the water uptake of the membrane, due to the lower polyvinylamine content, but was able to improve the CO<sub>2</sub> transport. Tests carried on at 35 °C and high relative humidity indeed showed an increase of both CO<sub>2</sub> permeability and selectivity with respect to nitrogen and methane. In particular, the CO<sub>2</sub> permeability increased from 160 to about 340 Barrer when arginine loading was increased from 0 to 45 wt%. In the same conditions, selectivity with respect to nitrogen was more than doubled, increasing from 20 to 45. Minor improvements were instead obtained with respect to methane; CO<sub>2</sub>/CH<sub>4</sub> selectivity, indeed, even in presence of the mobile carrier, was limited to about 20. |
| first_indexed | 2024-03-10T10:28:10Z |
| format | Article |
| id | doaj.art-493078a0fb5a46bd9cd5d73217ebeefb |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T10:28:10Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-493078a0fb5a46bd9cd5d73217ebeefb2023-11-21T23:50:35ZengMDPI AGMembranes2077-03752021-06-0111644210.3390/membranes11060442Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> CaptureRiccardo Casadei0Elham Firouznia1Marco Giacinti Baschetti2Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Alma Mater Studiorum—Università di Bologna, Via Terracini, 28, 40131 Bologna, ItalyDipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Alma Mater Studiorum—Università di Bologna, Via Terracini, 28, 40131 Bologna, ItalyDipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Alma Mater Studiorum—Università di Bologna, Via Terracini, 28, 40131 Bologna, ItalyFacilitated transport membranes obtained by coupling polyvinylamine with highly charged carboxymethylated nanocellulose fibers were studied considering both water sorption and gas permeation experiments. In particular, the effect of the L-arginine as a mobile carrier was investigated to understand possible improvements in CO<sub>2</sub> transport across the membranes. The results show that L-arginine addition decreases the water uptake of the membrane, due to the lower polyvinylamine content, but was able to improve the CO<sub>2</sub> transport. Tests carried on at 35 °C and high relative humidity indeed showed an increase of both CO<sub>2</sub> permeability and selectivity with respect to nitrogen and methane. In particular, the CO<sub>2</sub> permeability increased from 160 to about 340 Barrer when arginine loading was increased from 0 to 45 wt%. In the same conditions, selectivity with respect to nitrogen was more than doubled, increasing from 20 to 45. Minor improvements were instead obtained with respect to methane; CO<sub>2</sub>/CH<sub>4</sub> selectivity, indeed, even in presence of the mobile carrier, was limited to about 20.https://www.mdpi.com/2077-0375/11/6/442nanocellulosepolyvinylamineL-argininefacilitated transportCO<sub>2</sub> capture |
| spellingShingle | Riccardo Casadei Elham Firouznia Marco Giacinti Baschetti Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture Membranes nanocellulose polyvinylamine L-arginine facilitated transport CO<sub>2</sub> capture |
| title | Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture |
| title_full | Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture |
| title_fullStr | Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture |
| title_full_unstemmed | Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture |
| title_short | Effect of Mobile Carrier on the Performance of PVAm–Nanocellulose Facilitated Transport Membranes for CO<sub>2</sub> Capture |
| title_sort | effect of mobile carrier on the performance of pvam nanocellulose facilitated transport membranes for co sub 2 sub capture |
| topic | nanocellulose polyvinylamine L-arginine facilitated transport CO<sub>2</sub> capture |
| url | https://www.mdpi.com/2077-0375/11/6/442 |
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