Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation
Membrane science is a state-of-the-art environmentally green technology that ascertains superior advantages over traditional counterparts for CO2 capture and separation. In this research, mixed matrix membranes (MMMs) comprising cellulose acetate (CA) with various loadings of bentonite (Bt) clay wer...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2020/8855577 |
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| author | Asif Jamil Momina Zulfiqar Usama Arshad Subhan Mahmood Tanveer Iqbal Sikander Rafiq Muhammad Z. Iqbal |
| author_facet | Asif Jamil Momina Zulfiqar Usama Arshad Subhan Mahmood Tanveer Iqbal Sikander Rafiq Muhammad Z. Iqbal |
| author_sort | Asif Jamil |
| collection | DOAJ |
| description | Membrane science is a state-of-the-art environmentally green technology that ascertains superior advantages over traditional counterparts for CO2 capture and separation. In this research, mixed matrix membranes (MMMs) comprising cellulose acetate (CA) with various loadings of bentonite (Bt) clay were fabricated by adopting the phase-inversion technique for CO2/CH4 and CO2/N2 separation. The developed pristine and MMMs were characterized for morphological, thermal, structural, and mechanical analyses. Several techniques such as scanning electron microscopy, thermogravimetric analysis, Fourier transformed infrared spectroscopy, and nano-indentation investigations revealed the promising effect of Bt clay in MMMs as compared to pristine CA membrane. Nano-indentation test identified that elastic modulus and hardness of the MMM with 1 wt. loading was increased by 64% and 200%, respectively, compared to the pristine membrane. The permeability decreased with the incorporation of Bt clay due to uniform dispersion of filler attributed to enhanced tortuosity for the gas molecules. Nevertheless, an increase in gas separation performance was observed with Bt addition up to 1 wt. loading. The opposite trend prevailed with increasing Bt concentration on the separation performance owing to filler agglomeration and voids creation. The maximum value of ideal selectivity (CO2/CH4) was achieved at 2 bar pressure with 1 wt. % Bt loading, which is 79% higher than the pristine CA membrane. For CO2/N2, the ideal selectivity was 123% higher compared to the pristine membrane with 1 wt. % Bt loading at 4 bar pressure. |
| format | Article |
| id | doaj-art-c8d32d9154d64c22b66e988637e17742 |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-c8d32d9154d64c22b66e988637e177422025-08-20T03:24:11ZengWileyAdvances in Polymer Technology0730-66791098-23292020-01-01202010.1155/2020/88555778855577Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 SeparationAsif Jamil0Momina Zulfiqar1Usama Arshad2Subhan Mahmood3Tanveer Iqbal4Sikander Rafiq5Muhammad Z. Iqbal6Department of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology Lahore (New Campus), Lahore, PakistanDepartment of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology Lahore (New Campus), Lahore, PakistanDepartment of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology Lahore (New Campus), Lahore, PakistanDepartment of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology Lahore (New Campus), Lahore, PakistanDepartment of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology Lahore (New Campus), Lahore, PakistanDepartment of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology Lahore (New Campus), Lahore, PakistanDepartment of Chemical and Petroleum Engineering, United Arab Emirates University (UAEU), PO Box 15551, Al Ain, UAEMembrane science is a state-of-the-art environmentally green technology that ascertains superior advantages over traditional counterparts for CO2 capture and separation. In this research, mixed matrix membranes (MMMs) comprising cellulose acetate (CA) with various loadings of bentonite (Bt) clay were fabricated by adopting the phase-inversion technique for CO2/CH4 and CO2/N2 separation. The developed pristine and MMMs were characterized for morphological, thermal, structural, and mechanical analyses. Several techniques such as scanning electron microscopy, thermogravimetric analysis, Fourier transformed infrared spectroscopy, and nano-indentation investigations revealed the promising effect of Bt clay in MMMs as compared to pristine CA membrane. Nano-indentation test identified that elastic modulus and hardness of the MMM with 1 wt. loading was increased by 64% and 200%, respectively, compared to the pristine membrane. The permeability decreased with the incorporation of Bt clay due to uniform dispersion of filler attributed to enhanced tortuosity for the gas molecules. Nevertheless, an increase in gas separation performance was observed with Bt addition up to 1 wt. loading. The opposite trend prevailed with increasing Bt concentration on the separation performance owing to filler agglomeration and voids creation. The maximum value of ideal selectivity (CO2/CH4) was achieved at 2 bar pressure with 1 wt. % Bt loading, which is 79% higher than the pristine CA membrane. For CO2/N2, the ideal selectivity was 123% higher compared to the pristine membrane with 1 wt. % Bt loading at 4 bar pressure.http://dx.doi.org/10.1155/2020/8855577 |
| spellingShingle | Asif Jamil Momina Zulfiqar Usama Arshad Subhan Mahmood Tanveer Iqbal Sikander Rafiq Muhammad Z. Iqbal Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation Advances in Polymer Technology |
| title | Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation |
| title_full | Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation |
| title_fullStr | Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation |
| title_full_unstemmed | Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation |
| title_short | Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation |
| title_sort | development and performance evaluation of cellulose acetate bentonite mixed matrix membranes for co2 separation |
| url | http://dx.doi.org/10.1155/2020/8855577 |
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