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Liu WC, Selyanchyn R, Fujikawa S. Harnessing Collective Magnetic Forces for Enhanced Modulation of Oxygen Diffusion in CO 2/O 2 Separation toward Direct Air Capture. ACS APPLIED MATERIALS & INTERFACES 2025; 17:26511-26522. [PMID: 40273008 DOI: 10.1021/acsami.4c22235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2025]
Abstract
Membrane-based direct air capture (m-DAC) has recently been introduced as a simple, scalable, and environmentally friendly method to capture CO2 from the atmosphere. The captured CO2 is considered to be a carbon source for chemical reduction to other value-added chemicals. However, the chemical reduction of CO2 is disrupted by any O2 in the captured gas. Therefore, membranes with high CO2/O2 selectivity are essential for the m-DAC process. In this work, we design magnetic mixed matrix membranes (MMMs) with magnetic nanoparticle (MNP) fillers in polymer matrices, which exhibit room-temperature trapping of gaseous O2 within the membrane to achieve high CO2/O2 selectivities. We found that the CO2/O2 selectivity increased with both the MNP content and the externally applied magnetic field strength, signifying the magnetic interaction of paramagnetic O2 with MNP, while the permeation of CO2 remained unaffected. The experimental results were supported by our mathematical model. Overall, the magnetic PolyActive-MMMs containing 40 wt % MNPs achieved the highest CO2/O2 selectivity of 35 under a magnetic field of 800 mT, corresponding to a selectivity enhancement of 60% over pure PolyActive membranes. Our findings demonstrate the potential of using magnetic fields to control gas transport for applications that require the separation of O2 from other gases.
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Affiliation(s)
- Wing Chung Liu
- WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Roman Selyanchyn
- WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Platform of Inter-Transdisciplinary Energy Research (Q-PIT), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Research Center for Negative Emissions Technologies (K-NETs), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shigenori Fujikawa
- WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Research Center for Negative Emissions Technologies (K-NETs), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Qing H, Fan S, Liu Y, Li C, Meng J, Yang M, Xiao Z. Thin-Film Composite (TFC) Polydimethylsiloxane (PDMS) Membrane with High Crosslinking Density Fabricated by Coaxial Electrospray for a High Flux. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Haijie Qing
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Senqing Fan
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Yangchao Liu
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Chuang Li
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Jiaxin Meng
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Mingxia Yang
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Zeyi Xiao
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
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Liu J, Pan Y, Xu J, Wang Z, Zhu H, Liu G, Zhong J, Jin W. Introducing amphipathic copolymer into intermediate layer to fabricate ultra-thin Pebax composite membrane for efficient CO2 capture. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pang S, Si Z, Li G, Wu H, Cui Y, Zhang C, Ren C, Yang S, Pang S, Qin P. A fluorinated, defect-free ZIF-8/PDMS mixed matrix membrane for enhancing ethanol pervaporation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pan Y, Chen G, Liu J, Li J, Chen X, Zhu H, Liu G, Zhang G, Jin W. PDMS thin-film composite membrane fabricated by ultraviolet crosslinking acryloyloxy-terminated monomers. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Widiastuti N, Caralin IS, Widyanto AR, Wijiyanti R, Gunawan T, Karim ZA, Nomura M, Yoshida Y. Annealing and TMOS coating on PSF/ZTC mixed matrix membrane for enhanced CO 2/CH 4 and H 2/CH 4 separation. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211371. [PMID: 35754992 PMCID: PMC9214279 DOI: 10.1098/rsos.211371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Recently, natural gas (mostly methane) is frequently used as fuel, while hydrogen is a promising renewable energy source. However, each gas produced contains impurity gases. As a result, membrane separation is required. The mixed matrix membrane (MMM) is a promising membrane. The huge surface area and well-defined pore structure of zeolite templated carbon (ZTC)-based MMM allow for effective separation. However, the interfacial vacuum in MMM is difficult to avoid, contributing to poor separation performance. This research tries to improve separation performance by altering membrane surfaces. MMM PSF/ZTC was modified by annealing at 120, 150, and 190°C; coating using 0.01, 0.03, and 0.05 mol tetramethyl orthosilicate (TMOS); and a combination of both, i.e. annealing at 190°C and coating using 0.03 mol TMOS. MMM PSF/ZTC successfully significantly improved CO2/CH4 selectivity by a combination of annealing at 190°C and coating 0.03 mol TMOS from 1.37 to 5.90 (331%), and H2/CH4 selectivity by coating with 0.03 mol TMOS from 4.58 to 65.76 (1378%). The enhancement of selectivity was due to structural changes to the membrane that became denser and smoother, which SEM and AFM observed. In this study, annealing and coating treatments are the methods investigated for improving the polymer matrix and filler particle adhesion.
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Affiliation(s)
- Nurul Widiastuti
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Sukolilo, Surabaya 60111, Indonesia
| | - Irmariza Shafitri Caralin
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan
| | - Alvin Rahmad Widyanto
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Sukolilo, Surabaya 60111, Indonesia
| | - Rika Wijiyanti
- Medical Intelligence, Sekolah Tinggi Intelijen Negara (State Intelligence College), Sumur Batu, Babakan Madang, Bogor 16810, Indonesia
| | - Triyanda Gunawan
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Sukolilo, Surabaya 60111, Indonesia
| | - Zulhairun Abdul Karim
- Advanced Membrane Technology Research Center (AMTEC), Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Darul Ta'zim, Malaysia
| | - Mikihiro Nomura
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan
| | - Yuki Yoshida
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan
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