1
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Khalil A, Maschietti M, Muff J. Influence of graphene oxide additives on the NF separation of triazine-based H 2S scavenging compounds using advanced membrane technology. CHEMOSPHERE 2024; 360:142439. [PMID: 38797201 DOI: 10.1016/j.chemosphere.2024.142439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/17/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
This work proposes an innovative approach for the membrane separation of spent and unspent H2S scavengers (SUS) derived from the application of MEA-triazine in offshore oil and gas production. Modified nanofiltration membranes were fabricated by incorporating graphene oxide (GO) and polyvinyl alcohol (PVA) into a thin film composite (TFC) to obtain a thin film nanocomposite (TFN) with enhanced permeability. In addition, various immobilization strategies for GO were investigated. The performance of the membranes and the effect of the GO loading were evaluated in terms of permeability, fouling propensity, and rejection of key components of the SUS, i.e., MEA-triazine (unspent scavenger), dithiazine (spent scavenger), and monoethanolamine, operating on a sample of SUS wastewater obtained from an offshore oil and gas platform. Various characterization techniques, such as contact angle, FTIR, XRD, SEM, TGA, and AFM, were employed to evaluate the structure, composition, and hydrophilicity of the membrane. The results show a remarkable increase in permeability (from 0.22 Lm-2 h-1 bar-1 for the TFC to 5.8 Lm-2 h-1 bar-1 for the TFN membranes), due to the enhanced hydrophilicity from GO incorporation. The strong interfacial interaction between GO and PVA within the TFN membrane results in negligible nanofiller leaching. The incorporation of GO moderately increases the rejection of the unspent scavenger (63%-73%, 62%-79%, 62%-80%, and 68%-76%), while drastically increasing the rejection of the spent scavenger, which is approximately null for the TFC membrane without GO and increases up to 58% in the TFN membrane with GO. Therefore, while the proposed membranes cannot be used for the selective separation of the unspent form the spent scavenger, they can achieve substantial recovery of all the key components contained in the SUS to avoid their discharge into the sea.
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Affiliation(s)
- Alaa Khalil
- Section of Chemical Science and Engineering, Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8, 6700, Esbjerg, Denmark; Center for Membrane Technology, Aalborg University, Frederik Bajers Vej 7H, 9220, Aalborg Ø, Denmark.
| | - Marco Maschietti
- Section of Chemical Science and Engineering, Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8, 6700, Esbjerg, Denmark
| | - Jens Muff
- Section of Chemical Science and Engineering, Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8, 6700, Esbjerg, Denmark; Center for Membrane Technology, Aalborg University, Frederik Bajers Vej 7H, 9220, Aalborg Ø, Denmark
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2
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Tong H, Liu Q, Xu N, Wang Q, Fan L, Dong Q, Ding A. Efficient Pervaporation for Ethanol Dehydration: Ultrasonic Spraying Preparation of Polyvinyl Alcohol (PVA)/Ti 3C 2T x Nanosheet Mixed Matrix Membranes. MEMBRANES 2023; 13:430. [PMID: 37103857 PMCID: PMC10146547 DOI: 10.3390/membranes13040430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/28/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Polyvinyl alcohol (PVA) pervaporation (PV) membranes have been extensively studied in the field of ethanol dehydration. The incorporation of two-dimensional (2D) nanomaterials into the PVA matrix can greatly improve the hydrophilicity of the PVA polymer matrix, thereby enhancing its PV performance. In this work, self-made MXene (Ti3C2Tx-based) nanosheets were dispersed in the PVA polymer matrix, and the composite membranes were fabricated by homemade ultrasonic spraying equipment with poly(tetrafluoroethylene) (PTFE) electrospun nanofibrous membrane as support. Due to the gentle coating of ultrasonic spraying and following continuous steps of drying and thermal crosslinking, a thin (~1.5 μm), homogenous and defect-free PVA-based separation layer was fabricated on the PTFE support. The prepared rolls of the PVA composite membranes were investigated systematically. The PV performance of the membrane was significantly improved by increasing the solubility and diffusion rate of the membranes to the water molecules through the hydrophilic channels constructed by the MXene nanosheets in the membrane matrix. The water flux and separation factor of the PVA/MXene mixed matrix membrane (MMM) were dramatically increased to 1.21 kg·m-2·h-1 and 1126.8, respectively. With high mechanical strength and structural stability, the prepared PGM-0 membrane suffered 300 h of the PV test without any performance degradation. Considering the promising results, it is likely that the membrane would improve the efficiency of the PV process and reduce energy consumption in the ethanol dehydration.
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Affiliation(s)
| | | | - Nong Xu
- Correspondence: (Q.L.); (N.X.)
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3
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Han G, Lv J, Chen M. ZIF-67 Incorporated Sulfonated Poly (Aryl Ether Sulfone) Mixed Matrix Membranes for Pervaporation Separation of Methanol/Methyl Tert-Butyl Ether Mixture. MEMBRANES 2023; 13:389. [PMID: 37103816 PMCID: PMC10141737 DOI: 10.3390/membranes13040389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
Mixed matrix membranes (MMMs) with nano-fillers dispersed in polymer matrix have been proposed as alternative pervaporation membrane materials. They possess both promising selectivity benefiting from the fillers and economical processing capabilities of polymers. ZIF-67 was synthesized and incorporated into the sulfonated poly (aryl ether sulfone) (SPES) matrix to prepare SPES/ZIF-67 mixed matrix membranes with different ZIF-67 mass fractions. The as-prepared membranes were used for pervaporation separation of methanol/methyl tert-butyl ether mixtures. X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and laser particle size analysis results show that ZIF-67 is successfully synthesized, and the particle size is mainly between 280 nm and 400 nm. The membranes were characterized by SEM, atomic force microscope (AFM), water contact angle, thermogravimetric analysis (TGA), mechanical property testing and positron annihilation technique (PAT), sorption and swelling experiments, and the pervaporation performance was also investigated. The results reveal that ZIF-67 particles disperse uniformly in the SPES matrix. The roughness and hydrophilicity are enhanced by ZIF-67 exposed on the membrane surface. The mixed matrix membrane has good thermal stability and mechanical properties, which can meet the requirements of pervaporation operation. The introduction of ZIF-67 effectively regulates the free volume parameters of the mixed matrix membrane. With increasing ZIF-67 mass fraction, the cavity radius and free volume fraction increase gradually. When the operating temperature is 40 °C, the flow rate is 50 L·h-1 and the mass fraction of methanol in feed is 15%, the mixed matrix membrane with ZIF-67 mass fraction of 20% shows the best comprehensive pervaporation performance. The total flux and separation factor reach 0.297 kg·m-2·h-1 and 2123, respectively.
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Affiliation(s)
- Guanglu Han
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China
| | - Jie Lv
- Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, Zhengzhou 450001, China; (J.L.); (M.C.)
| | - Mohan Chen
- Henan Engineering Research Center of Chemical Engineering Separation Process Intensification, Zhengzhou 450001, China; (J.L.); (M.C.)
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4
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Liu Q, Pan X, Xu N, Wang Q, Qu S, Wang W, Fan L, Dong Q. Hypergravity field induced self‐assembly of
2D MXene
in polyvinyl alcohol membrane matrix and its improvement of alcohol/water pervaporation. J Appl Polym Sci 2023. [DOI: 10.1002/app.53740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Qiao Liu
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
- State Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Science Beijing P. R. China
| | - Xiaojun Pan
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
| | - Nong Xu
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
- State Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Science Beijing P. R. China
| | - Qing Wang
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
| | - Shenzhen Qu
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
| | - Weihao Wang
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
| | - Long Fan
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
| | - Qiang Dong
- School of Energy, Materials and Chemical Engineering Hefei University Hefei P. R. China
- State Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Science Beijing P. R. China
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5
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Liu Y, Li N, Cui X, Yan W, Su J, Jin L. A Review on the Morphology and Material Properties of the Gas Separation Membrane: Molecular Simulation. MEMBRANES 2022; 12:1274. [PMID: 36557181 PMCID: PMC9783095 DOI: 10.3390/membranes12121274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Gas membrane separation technology is widely applied in different industry processes because of its advantages relating to separation performance and economic efficiency. It is usually difficult and time consuming to determine the suitable membrane materials for specific industrial separation processes through traditional experimental research methods. Molecular simulation is widely used to investigate the microscopic morphology and macroscopic properties of materials, and it guides the improvement of membrane materials. This paper comprehensively reviews the molecular-level exploration of the dominant mechanism and influencing factors of gas membrane-based separation. The thermodynamics and kinetics of polymer membrane synthesis, the molecular interactions among the penetrated gases, the relationships between the membrane properties and the transport characteristics of different gases in the composite membrane are summarized and discussed. The limitations and perspectives of the molecular simulation method in the study of the gas membrane separation process are also presented to rationalize its potential and innovative applications. This review provides a more comprehensive reference for promoting the materials' design and engineering application of the gas separation membrane.
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Affiliation(s)
- Yilin Liu
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Na Li
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Xin Cui
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Weichao Yan
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Jincai Su
- School of Life Sciences & Chemical Technology, Ngee Ann Polytechnic, 535 Clementi Road, Singapore 599489, Singapore
| | - Liwen Jin
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
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Tian P, Yang S, Liu W, Zhang J. Acrylamide-modified polyvinyl alcohol and combined with graphene oxide for low dielectric constant composite films. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Dehydration of isopropanol by poly(vinyl alcohol) hybrid membrane containing oxygen-plasma treated graphene oxide in pervaporation process. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Preparation and pervaporation performance of PVA membrane with biomimetic modified silica nanoparticles as coating. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120535] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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9
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Hydroxyl-functionalized ultra-thin graphitic-carbon-nitrite nanosheets-accommodated polyvinyl alcohol membrane for pervaporation of isopropanol/water mixture. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.10.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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10
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PVA-Based MMMs for Ethanol Dehydration via Pervaporation: A Comparison Study between Graphene and Graphene Oxide. SEPARATIONS 2022. [DOI: 10.3390/separations9020026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Two different types of 2D nanosheets, including hydrophobic graphene (GR) and hydrophilic graphene oxide (GO), were filled into poly (vinyl alcohol) (PVA) polymers to prepare mixed matrix membranes (MMMs) for ethanol dehydration via pervaporation. The relationship between the physical/chemical properties of graphene and pervaporation performance of MMMs was investigated by a comparison of GR/PVA and GO/PVA MMMs in microstructure and PV performance. The incorporation of GO nanosheets into PVA reduced PVA crystallinity and enhanced the membrane hydrophilicity, while the incorporation of GR into PVA led to the opposite results. The incorporation of GR/GO into PVA depressed the PVA membrane swelling degree, and the incorporation of GR showed a more obvious depression effect. GR/PVA MMMs showed a much higher separation factor than GO/PVA MMMs, while they exhibited a much lower permeation flux than GO/PVA MMMs and pristine PVA membranes. The huge difference in microstructure and performance between GO/PVA and GR/PVA MMMs was strongly associated with the oxygen-containing groups on graphene lamellae. The higher permeation flux of GO/PVA MMMs was ascribed to the facilitated transport of water molecules induced by oxygen-containing groups and exclusive channels provided by GO lamellae, while the much lower permeation flux and higher separation factor GR/PVA MMMs was resulted from the smaller GR interplanar spacing (0.33 nm) and hydrophobicity as well as barrier effect of GR lamellae on the sorption and diffusion of water molecules. It was presumed that graphene intercalated with an appropriate number of oxygen-containing groups might be a good choice to prepare PVA-based MMMs for ethanol dehydration, which would combine the advantages of GR’s high interlayer diffusion selectivity and GO’s high permeation properties. The investigation might open a door to achieve both of high permeation flux and separation factor of PVA-based MMMs by tuning the microstructure of graphene.
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11
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Choi S, Chaudhari S, Shin H, Cho K, Lee D, Shon M, Nam S, Park Y. Polydopamine-modified halloysite nanotube-incorporated polyvinyl alcohol membrane for pervaporation of water-isopropanol mixture. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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GAO X, JIA Y, CHEN Z, SANTHANAM RK, ZHANG M, HE C, CHEN H. Synthesis of hydrogels based on nanocellulose from garlic straw and regulating the release of allicin and its cytotoxicity. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.43422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xudong GAO
- Tianjin University, China; General Hospital of Northern Theater Command, China
| | | | | | | | - Min ZHANG
- Tianjin University of Science and Technology, China
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Chaudhari S, Shin H, Choi S, Cho K, Shon M, Nam S, Park Y. Hydrophilic and organophilic pervaporation of industrially important α,β and α,ω-diols. RSC Adv 2021; 11:9274-9284. [PMID: 35423423 PMCID: PMC8695363 DOI: 10.1039/d1ra00467k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/16/2021] [Indexed: 11/21/2022] Open
Abstract
The distillation-based purification of α,β and α,ω-diols is energy and resource intensive, as well as time consuming. Pervaporation separation is considered to be a remarkable energy efficient membrane technology for purification of diols. Thus, as a core pervaporation process, hydrophilic polyvinyl alcohol (PVA) membranes for the removal of water from 1,2-hexanediol (1,2-HDO) and organophilic polydimethylsiloxane-polysulfone (PDMS-PSF) membranes for the removal of isopropanol from 1,5 pentanediol (1,5-PDO) were employed. For 1,2-HDO/water separation using a feed having a 1 : 4 weight ratio of 1,2-HDO/water, the membrane prepared using 4 vol% glutaraldehyde (GA4) showed the best performance, yielding a flux of 0.59 kg m-2 h-1 and a separation factor of 175 at 40 °C. In the organophilic pervaporation separation of the 1,5-PDO/IPA feed having a 9 : 1 weight ratio of components, the PDMS membrane prepared with a molar ratio of TEOS alkoxy groups to PDMS hydroxyl groups of 70 yielded a flux of 0.12 kg m-2 h-1 and separation factor of 17 638 at 40 °C. Long term stability analysis found that both hydrophilic (PVA) and organophilic (PDMS) membranes retained excellent pervaporation output over 18 days' continuous exposure to the feed. Both the hydrophilic and organophilic membranes exhibited promising separation performance at elevated operating conditions, showing their great potential for purification of α,β and α,ω-diols.
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Affiliation(s)
- Shivshankar Chaudhari
- Department of Industrial Chemistry, Pukyong National University San 100, Yongdang-Dong, Nam-Gu Busan 608-739 Korea +82 51 629 6429 +82 51 629 6440
| | - HyeonTae Shin
- Department of Industrial Chemistry, Pukyong National University San 100, Yongdang-Dong, Nam-Gu Busan 608-739 Korea +82 51 629 6429 +82 51 629 6440
| | - SeoungYong Choi
- Department of Industrial Chemistry, Pukyong National University San 100, Yongdang-Dong, Nam-Gu Busan 608-739 Korea +82 51 629 6429 +82 51 629 6440
| | - KieYong Cho
- Department of Industrial Chemistry, Pukyong National University San 100, Yongdang-Dong, Nam-Gu Busan 608-739 Korea +82 51 629 6429 +82 51 629 6440
| | - MinYoung Shon
- Department of Industrial Chemistry, Pukyong National University San 100, Yongdang-Dong, Nam-Gu Busan 608-739 Korea +82 51 629 6429 +82 51 629 6440
| | - SeungEun Nam
- Center for Membranes, Korea Research Institute of Chemical Technology 141 Gajeong-ro, Yuseong-gu Daejeon 305-600 Korea
| | - YouIn Park
- Center for Membranes, Korea Research Institute of Chemical Technology 141 Gajeong-ro, Yuseong-gu Daejeon 305-600 Korea
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15
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Kalahal PB, Kulkarni AS, Sajjan AM, Khan TMY, Anjum Badruddin I, Kamangar S, Banapurmath NR, Ayachit NH, Naik ML, Marakatti VS. Fabrication and Physicochemical Study of B2SA-Grafted Poly(vinyl Alcohol)-Graphene Hybrid Membranes for Dehydration of Bioethanol by Pervaporation. MEMBRANES 2021; 11:110. [PMID: 33557066 PMCID: PMC7913885 DOI: 10.3390/membranes11020110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 11/16/2022]
Abstract
Tetraethylorthosilicate (TEOS)-crosslinked poly(vinyl alcohol) (PVA) solution was prepared and treated with benzaldehyde 2 sulphonic sodium salt acid (B2SA) for sulfonation. Different contents of graphene were incorporated into B2SA-grafted PVA-TEOS hybrid membrane to improve the membrane stability, mechanical strength, and overall pervaporation performance of the membranes. Membranes were fabricated using the casting technique. Developed membranes were then analyzed for their physicochemical changes by means of Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), scanning electron microscope (SEM), wide-angle X-ray diffraction (WAXD), thermogravimetric analysis (TGA), contact angle analysis (CA), and mechanical strength. The lower d-spacing value observed in WAXD was evidence for the decreased inter-chain distance between the polymer chains. DSC exhibited the enhanced thermal stability of the developed membranes compared to the plane PVA membrane with enhancement in Tg value (106 °C), which was well above the pervaporation experimental temperature. Incorporation of graphene induced higher mechanical strength to the fabricated membranes. Further, the membranes were tested for the pervaporation separation of bioethanol. All the membranes were stable throughout the pervaporation studies, with M-2 G showing the total permeation flux of 11.66 × 10-2 kg/(m2 h) at 30 °C.
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Affiliation(s)
- Prakash B. Kalahal
- Department of Chemistry, KLE Technological University, Hubballi 580031, India; (P.B.K.); (A.S.K.); (M.L.N.)
| | - Akshay S. Kulkarni
- Department of Chemistry, KLE Technological University, Hubballi 580031, India; (P.B.K.); (A.S.K.); (M.L.N.)
| | - Ashok M. Sajjan
- Department of Chemistry, KLE Technological University, Hubballi 580031, India; (P.B.K.); (A.S.K.); (M.L.N.)
- Center for Material Science, KLE Technological University, Hubballi 580031, India; (N.R.B.); (N.H.A.)
| | - T. M. Yunus Khan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (T.M.Y.K.); (I.A.B.)
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Irfan Anjum Badruddin
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (T.M.Y.K.); (I.A.B.)
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Sarfaraz Kamangar
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Nagaraj R. Banapurmath
- Center for Material Science, KLE Technological University, Hubballi 580031, India; (N.R.B.); (N.H.A.)
| | - Narasimha H. Ayachit
- Center for Material Science, KLE Technological University, Hubballi 580031, India; (N.R.B.); (N.H.A.)
| | - Manu L. Naik
- Department of Chemistry, KLE Technological University, Hubballi 580031, India; (P.B.K.); (A.S.K.); (M.L.N.)
| | - Vijaykumar S. Marakatti
- Institute of Condensed Matter and Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Université Catholique de Louvain (UCLouvain), 1348 Louvain-la-Neuve, Belgium;
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16
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Polyvinyl alcohol and graphene oxide blending surface coated alumina hollow fiber (AHF) membrane for pervaporation dehydration of epichlorohydrin(ECH)/ isopropanol(IPA)/water ternary feed mixture. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.09.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Yang G, Xie Z, Cran M, Wu C, Gray S. Dimensional Nanofillers in Mixed Matrix Membranes for Pervaporation Separations: A Review. MEMBRANES 2020; 10:E193. [PMID: 32825195 PMCID: PMC7559426 DOI: 10.3390/membranes10090193] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/11/2020] [Accepted: 08/18/2020] [Indexed: 01/08/2023]
Abstract
Pervaporation (PV) has been an intriguing membrane technology for separating liquid mixtures since its commercialization in the 1980s. The design of highly permselective materials used in this respect has made significant improvements in separation properties, such as selectivity, permeability, and long-term stability. Mixed-matrix membranes (MMMs), featuring inorganic fillers dispersed in a polymer matrix to form an organic-inorganic hybrid, have opened up a new avenue to facilely obtain high-performance PV membranes. The combination of inorganic fillers in a polymer matrix endows high flexibility in designing the required separation properties of the membranes, in which various fillers provide specific functions correlated to the separation process. This review discusses recent advances in the use of nanofillers in PV MMMs categorized by dimensions including zero-, one-, two- and three-dimensional nanomaterials. Furthermore, the impact of the nanofillers on the polymer matrix is described to provide in-depth understanding of the structure-performance relationship. Finally, the applications of nanofillers in MMMs for PV separation are summarized.
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Affiliation(s)
- Guang Yang
- Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia; (G.Y.); (M.C.)
- CSIRO Manufacturing, Private bag 10, Clayton South, VIC 3169, Australia
| | - Zongli Xie
- CSIRO Manufacturing, Private bag 10, Clayton South, VIC 3169, Australia
| | - Marlene Cran
- Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia; (G.Y.); (M.C.)
| | - Chunrui Wu
- State Key Laboratory of Separation Membranes and Membrane Processes, Institute of Biological and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China;
| | - Stephen Gray
- Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia; (G.Y.); (M.C.)
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Bo Strunck A, Suri A, Boffa V. Effect of Temperature and Branched Crosslinkers on Supported Graphene Oxide Pervaporation Membranes for Ethanol Dehydration. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1571. [PMID: 32785060 PMCID: PMC7466621 DOI: 10.3390/nano10081571] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/29/2020] [Accepted: 08/06/2020] [Indexed: 12/03/2022]
Abstract
We describe the performance of graphene oxide (GO) membranes stabilized by crosslinkers and supported on polyethersulfone films in the dehydration of ethanol in a continuous cross-flow pervaporation set-up. We used two crosslinker species with branched structures (humic acid-like substances derived from urban waste and a synthetic hyperbranched polyol). The supported crosslinked GO films were prepared by rod coating on a polyethersulfone ultrafiltration membrane. Pervaporation experiments were carried out at temperatures of 40, 50, 60 and 70 °C. When the feed comprised pure water and ethanol, a much higher flux of water than ethanol was observed at all temperatures through GO films stabilized by the two crosslinkers (humic acid, GO-HAL, and the synthetic hyperbranched polyol, GO-HBPO), indicating the separation ability of these crosslinked membranes. For feed mixtures of water and ethanol, the GO-HAL and GO-HBPO membranes showed good separation performances by producing permeates with a significantly higher water content than the feed at all temperatures.
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Affiliation(s)
| | - Anil Suri
- Center for Membrane Technology, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg Øst, Denmark; (A.B.S.); (V.B.)
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19
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Tang L, Lu Y, Yao L, Cui P. A highly hydrophilic benzenesulfonic-grafted graphene oxide-based hybrid membrane for ethanol dehydration. RSC Adv 2020; 10:20358-20367. [PMID: 35520457 PMCID: PMC9054239 DOI: 10.1039/d0ra02668a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/29/2020] [Indexed: 01/06/2023] Open
Abstract
A new type of hybrid membrane was prepared by blending sodium alginate (SA) with benzenesulfonic-grafted graphene oxide (BS@GO), which showed higher hydrophilicity and more defects or edges than GO to create channels for the transfer of water molecules. BS@GO was synthesized by reacting aryl diazonium salts with graphene oxide (GO). The BS@GO sheets were aligned parallelly to the membrane surface and affected the interactions between the SA chains. BS@GO could improve the hydrophilicity and pervaporation properties of SA-based hybrid membranes. Also, compared to GO fillers, BS@GO fillers could supply higher water permeance to improve the pervaporation flux and separation factor. For the pervaporation of 90 wt% aqueous ethanol at 343 K, the optimum hybrid membrane with 1.5 wt% BS@GO in the SA matrix showed the maximum permeate flux of 703 ± 89 g m-2 h-1 (1.4 times higher than that of an SA membrane), and the highest separation factor was 5480 ± 94 (5.6 times higher than that of the SA membrane). Moreover, the hybrid membrane exhibited good stability and separation ability during long-term testing.
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Affiliation(s)
- Lin Tang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering Hefei 230009 China
| | - Yingying Lu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering Hefei 230009 China
| | - Lulu Yao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering Hefei 230009 China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering Hefei 230009 China
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Zhao B, Ma W, Zhang P, Zhang Q, Zhong J, Matsuyama H. Permeation and diffusion of nutrient ions in poly (vinyl alcohol) hydrogel membrane. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01210-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Cai W, Cheng X, Chen X, Li J, Pei J. Poly(vinyl alcohol)-Modified Membranes by Ti 3C 2T x for Ethanol Dehydration via Pervaporation. ACS OMEGA 2020; 5:6277-6287. [PMID: 32258862 PMCID: PMC7114143 DOI: 10.1021/acsomega.9b03388] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 03/10/2020] [Indexed: 05/12/2023]
Abstract
In this paper, PVA/Ti3C2T x mixed matrix membranes (MMMs) were prepared by mixing the synthesized Ti3C2T x with the PVA matrix, and the pervaporation (PV) performance of the ethanol-water binary system was tested. The morphology, structural properties, and surface characteristics of the membranes were investigated by scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, degree of swelling, and water contact angle. The PVA/Ti3C2T x MMMs exhibit excellent compatibility and swelling resistance. Moreover the effects of the Ti3C2T x filling level, feed concentration, and operating temperature on the ethanol dehydration performance were systematically studied. The results demonstrated that the separation factor of PVA/Ti3C2T x MMMs was significantly increased because of Ti3C2T x promoting the cross-linking density of the membrane. Specifically, the membrane showed the best PV performance when Ti3C2T x loading was 3.0 wt %, achieving a separation factor of 2585 and a suitable total flux of 0.074 kg/m2 h for separating 93 wt % ethanol solution at 37 °C.
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Affiliation(s)
- Weibin Cai
- School
of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China
| | - Xue Cheng
- School
of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China
| | - Xiaohan Chen
- School
of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China
| | - Jiding Li
- Department
of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Junqi Pei
- School
of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China
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