1
|
Tang S, Yang J, Wu B, Zhang J, Li J, He B, Wang H, Cui Z. Fabrication of hollow fiber nanofiltration membrane with high permselectivity based on “Co-deposition, biomineralization and dual cross-linking” process. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
2
|
Yan M, Shao M, Li J, Jiang N, Hu Y, Zeng W, Huang M. Antifouling forward osmosis membranes by ε-polylysine mediated molecular grafting for printing and dyeing wastewater: Preparation, characterization, and performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
3
|
Kim Y, Choi M, Heo J, Jung S, Ka D, Lee H, Kang SW, Jung H, Lee S, Jin Y, Hong J. Blocking chemical warfare agent simulants by graphene oxide/polymer multilayer membrane based on hydrogen bonding and size sieving effect. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:127884. [PMID: 34863570 DOI: 10.1016/j.jhazmat.2021.127884] [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: 09/22/2021] [Revised: 11/08/2021] [Accepted: 11/20/2021] [Indexed: 06/13/2023]
Abstract
Chemical warfare agents (CWAs) are toxic materials that cause death by contact with the skin or by respiration. Although studies on detoxification of CWAs have been intensively conducted, studies that block CWAs permeation are rare. In this study, for blocking CWAs, a multilayer thin film composed of linear polyethylenimine (LPEI) and graphene oxide (GO) is simply prepared through a spray-assisted Layer-by-Layer (LbL) assembly process. LPEI could change its morphology dependent on pH, which is known as a representative hydrogen donor and acceptor. By controlling the shape of the polymer chain, a heterogenous film could have a loose or dense inner structure. CWAs mainly move through diffusion and have hydrogen bonding sites. Therefore, the heterogeneous film can limit CWAs movement based on controlling pathways and hydrogen bonds within the film. The protective effect of this membrane is investigated using dimethyl methylphosphonate (DMMP), a nerve gas simulant. DMMP vapor transmittance rate (DVTR) and N2 permeance of LPEI/GO are 67.91 g/m2 day and 34,293.04 GPU. It means that the protection efficiency is 72.65%. Although this membrane has a thin thickness (100 nm), it shows a high protective effect with good breathability. And water/DMMP selectivity of the membrane is 66.63. Since this multilayer membrane shows efficient protection performance with a simple preparation method, it has a high potential for applications such as protective suits and masks.
Collapse
Affiliation(s)
- Youna Kim
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Moonhyun Choi
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jiwoong Heo
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sungwon Jung
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Dongwon Ka
- Chem-Bio Technology Center, Agency for Defense Development, Daejeon, 34186, Republic of Korea
| | - Hyeji Lee
- Department of Chemistry, Sangmyung University, 20 Hongjimun 2-gil, Jongno-gu, Seoul 03016, Republic of Korea
| | - Sang Wook Kang
- Department of Chemistry, Sangmyung University, 20 Hongjimun 2-gil, Jongno-gu, Seoul 03016, Republic of Korea
| | - Heesoo Jung
- Chem-Bio Technology Center, Agency for Defense Development, Daejeon, 34186, Republic of Korea
| | - Sangmin Lee
- School of Mechanical Engineering, Chung-ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Youngho Jin
- Chem-Bio Technology Center, Agency for Defense Development, Daejeon, 34186, Republic of Korea.
| | - Jinkee Hong
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| |
Collapse
|
4
|
Structurally ordered nanofiltration membranes prepared by spatially anchoring interfacial polymerization for highly efficient separation properties. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0837-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
5
|
Enhanced water-selective performance of dual-layer hybrid membranes by incorporating carbon nanotubes. CHEMICAL ENGINEERING SCIENCE: X 2021. [DOI: 10.1016/j.cesx.2021.100102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
6
|
Novel Pervaporation Membranes Based on Biopolymer Sodium Alginate Modified by FeBTC for Isopropanol Dehydration. SUSTAINABILITY 2021. [DOI: 10.3390/su13116092] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Modern society strives for the development of sustainable processes that are aimed at meeting human needs while preserving the environment. Membrane technologies satisfy all the principles of sustainability due to their advantages, such as cost-effectiveness, environmental friendliness, absence of additional reagents and ease of use compared to traditional separation methods. In the present work, novel green membranes based on sodium alginate (SA) modified by a FeBTC metal–organic framework were developed for isopropanol dehydration using a membrane process, pervaporation. Two kinds of SA-FeBTC membranes were developed: (1) untreated membranes and (2) cross-linked membranes with citric acid or phosphoric acid. The structural and physicochemical properties of the developed SA-FeBTC membranes were studied by spectroscopic techniques (FTIR and NMR), microscopic methods (SEM and AFM), thermogravimetric analysis and swelling experiments. The transport properties of developed SA-FeBTC membranes were studied in the pervaporation of water–isopropanol mixtures. Based on membrane transport properties, 15 wt % FeBTC was demonstrated to be the optimal content of the modifier in the SA matrix for the membrane performance. A membrane based on SA modified by 15 wt % FeBTC and cross-linked with citric acid possessed optimal transport properties for the pervaporation of the water–isopropanol mixture (12–100 wt % water): 174–1584 g/(m2 h) permeation flux and 99.99 wt % water content in the permeate.
Collapse
|
7
|
Sustainable composite pervaporation membranes based on sodium alginate modified by metal organic frameworks for dehydration of isopropanol. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119194] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
8
|
Preparation and characterization of a novel green silica/PVA membrane for water desalination by pervaporation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116852] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
9
|
Novel Mixed Matrix Sodium Alginate-Fullerenol Membranes: Development, Characterization, and Study in Pervaporation Dehydration of Isopropanol. Polymers (Basel) 2020; 12:polym12040864. [PMID: 32283648 PMCID: PMC7240529 DOI: 10.3390/polym12040864] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 11/24/2022] Open
Abstract
Novel mixed matrix dense and supported membranes based on biopolymer sodium alginate (SA) modified by fullerenol were developed. Two kinds of SA–fullerenol membranes were investigated: untreated and cross-linked by immersing the dry membranes in 1.25 wt % calcium chloride (CaCl2) in water for 10 min. The structural and physicochemical characteristics features of the SA–fullerenol composite were investigated by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopic methods, scanning electron (SEM) and atomic force (AFM) microscopies, thermogravimetric analysis (TGA), and swelling experiments. Transport properties were evaluated in pervaporation dehydration of isopropanol in a wide concentration range. It was found that the developed supported cross-linked SA-5/PANCaCl2 membrane (modified by 5 wt % fullerenol) possessed the best transport properties (the highest permeation fluxes 0.64–2.9 kg/(m2 h) and separation factors 26–73,326) for the pervaporation separation of the water–isopropanol mixture in the wide concentration range (12–90 wt % water) at 22 °C and is suitable for the promising application in industry.
Collapse
|
10
|
|
11
|
Hosseini SM, Alibakhshi H, Jashni E, Parvizian F, Shen JN, Taheri M, Ebrahimi M, Rafiei N. A novel layer-by-layer heterogeneous cation exchange membrane for heavy metal ions removal from water. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:120884. [PMID: 31352152 DOI: 10.1016/j.jhazmat.2019.120884] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 07/07/2019] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
A novel layer-by-layer (LbL) cation exchange membrane was prepared for heavy metal ions removal from water via electrodialysis. LBL membranes fabricated by coating of [chitosan-co-activated carbon nanoparticles] layer on polyvinyl chloride-based heterogeneous cation exchange membrane. Betterment in adherence of layers was achieved through glutaraldehyde cross linking. FTIR, FESEM, 3D-surface images and BET analysis were used for LBL membrane characterization. Membrane surface hydrophilicity, flux, membrane potential, transport number, and their permselectivity were studied. FTIR spectra confirm LbL formation decisively. FESEM images and BET analysis demonstrated that coating of second layer on PVC membrane led to a compact structure. LbL membrane showed smoother and more hydrophilic surface compared to pristine membrane. The transport number and permselectivity increased by deposition of second layer whereas sodium flux showed up-down trend. ED experiment showed good ability in heavy metal ions removal for LBL membrane that follows (Cu2+> Ni2+> Pb2+) sequence. EDX analysis showed a competitive adsorption for heavy metal ions on LBL membrane as (Pb2+> Cu2+≥Ni2+). The effect of ultrasonic waves on regeneration of fouled membranes by heavy metals was investigated. The results showed improved performance for the regenerated membrane. Mechanical resistance also improved by utilizing of ACNs in chitosan layer.
Collapse
Affiliation(s)
- S M Hosseini
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - H Alibakhshi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - E Jashni
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - F Parvizian
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - J N Shen
- Center for Membrane Separation and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou 310014, China.
| | - M Taheri
- Department of Mechanical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - M Ebrahimi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - N Rafiei
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| |
Collapse
|
12
|
Liu H, Gao J, Liu G, Zhang M, Jiang Y. Enhancing Permeability of Thin Film Nanocomposite Membranes via Covalent Linking of Polyamide with the Incorporated Metal–Organic Frameworks. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00772] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Hengrao Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Guanhua Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Miyu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| |
Collapse
|
13
|
Zhang S, Shi J, Sun Y, Wu Y, Zhang Y, Cai Z, Chen Y, You C, Han P, Jiang Z. Artificial Thylakoid for the Coordinated Photoenzymatic Reduction of Carbon Dioxide. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00255] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shaohua Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Jiafu Shi
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Yiying Sun
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yizhou Wu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yishan Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Ziyi Cai
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yixuan Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Chun You
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People’s Republic of China
| | - Pingping Han
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People’s Republic of China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| |
Collapse
|
14
|
High-efficiency water-selective membranes from the solution-diffusion synergy of calcium alginate layer and covalent organic framework (COF) layer. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.11.040] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
15
|
Liu G, Jiang Z, Li C, Hou L, Chen C, Yang H, Pan F, Wu H, Zhang P, Cao X. Layer-by-layer self-assembled nanocomposite membranes via bio-inspired mineralization for pervaporation dehydration. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.09.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
16
|
Wang H, Wei Z, Wang H, Jiang H, Li Y, Wu C. An acid-stable positively charged polysulfonamide nanofiltration membrane prepared by interfacial polymerization of polyallylamine and 1,3-benzenedisulfonyl chloride for water treatment. RSC Adv 2019; 9:2042-2054. [PMID: 35516149 PMCID: PMC9059827 DOI: 10.1039/c8ra08369j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/26/2018] [Indexed: 11/21/2022] Open
Abstract
Here, we selected macromolecular polyallylamine (PAH) as the monomer in an aqueous-phase reaction for the first time, which underwent interfacial polymerization with 1,3-benzenedisulfonyl chloride (BDSC) on the surface of a polyethersulfone (PES) ultrafiltration membrane to prepare a new PSA composite membrane with positive charge, acid stability and high separation performance. By tailoring the polymerization conditions, the desired PSA composite membrane exhibited excellent rejection of different salts [MgCl2 (92.44%) > MgSO4 (89.2%) > NaCl (56.8%) > Na2SO4 (55.2%)] and a high permeation flux of up to 34.10 L m−2 h−1 at 0.5 MPa. The properties of the membrane were evaluated using various characterization techniques. The results indicated that the new PSA membrane is more positively charged and more compact than reported PSA composite membranes. In addition, it exhibited high acid stability. After exposure to a 20% (w/v) H2SO4 solution for 30 days, the MgCl2 rejection level reached 88.3%. Finally, we used the new PSA composite membrane to test some heavy metal ions and found that the rejection level was always greater than 90%. Therefore, the new PSA composite membrane exhibited potential for water desalination and the removal of heavy metal ions from an acidic environment. Here, an acid stable PSA membrane with positively charge was prepared through the IP between macromolecular PAH and BDSC on PES substrate. In addition, the PSA membrane exhibited excellent separation performance to divalent metal ions.![]()
Collapse
Affiliation(s)
- Hao Wang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Zhong Wei
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
| | - Heyun Wang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
- Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region
| | - Haoji Jiang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Yinchun Li
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Chunlin Wu
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| |
Collapse
|
17
|
Zhang R, Liu Y, He M, Wu M, Jiao Z, Su Y, Jiang Z, Zhang P, Cao X. Mussel-inspired construction of organic-inorganic interfacial nanochannels for ion/organic molecule selective permeation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.03.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
18
|
Nakouzi E, Fares HM, Schlenoff JB, Steinbock O. Polyelectrolyte complex films influence the formation of polycrystalline micro-structures. SOFT MATTER 2018; 14:3164-3170. [PMID: 29632902 DOI: 10.1039/c7sm02466e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Silica-carbonate biomorphs are inorganic materials composed of thousands of crystalline nanorods that assemble complex morphologies such as helices, vessels, and sheets. We investigate the effect on biomorph crystallization of polyelectrolyte complex films that are prepared using the layer-by-layer deposition technique and post-processed to obtain three stable, chemically distinct films. Biomorph growth on poly(diallyldimethylammonium)-dominated substrates (cationic) shows polycrystalline helical and sheet structures bounded by large witherite prisms. Crystallization on poly(styrenesulfonate)-dominated (anionic) and stoichiometric substrates follows a qualitatively different pathway. We observe islands of radial mineral films that over several days extend at a remarkably constant velocity of 0.48 μm h-1 and eventually mineralize the whole substrate. Our work opens exciting avenues for the use of polyelectrolyte films as tunable substrates for biomimetic crystallization.
Collapse
Affiliation(s)
- Elias Nakouzi
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA.
| | | | | | | |
Collapse
|
19
|
Woo YC, Kim Y, Yao M, Tijing LD, Choi JS, Lee S, Kim SH, Shon HK. Hierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By-Layer Assembly Technique. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:2186-2196. [PMID: 29338208 DOI: 10.1021/acs.est.7b05450] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, composite membranes were fabricated via layer-by-layer (LBL) assembly of negatively charged silica aerogel (SiA) and 1H,1H,2H,2H-perfluorodecyltriethoxysilane (FTCS) on a polyvinylidene fluoride phase inversion membrane and interconnecting them with positively charged poly(diallyldimethylammonium chloride) (PDDA) via electrostatic interaction. The results showed that the PDDA-SiA-FTCS coated membrane had significantly enhanced the membrane structure and properties. New trifluoromethyl and tetrafluoroethylene bonds appeared at the surface of the coated membrane, which led to lower surface free energy of the composite membrane. Additionally, the LBL membrane showed increased surface roughness. The improved structure and property gave the LBL membrane an omniphobic property, as indicated by its good wetting resistance. The membrane performed a stable air gap membrane distillation (AGMD) flux of 11.22 L/m2 h with very high salt rejection using reverse osmosis brine from coal seam gas produced water as feed with the addition of up to 0.5 mM SDS solution. This performance was much better compared to those of the neat membrane. The present study suggests that the enhanced membrane properties with good omniphobicity via LBL assembly make the porous membranes suitable for long-term AGMD operation with stable permeation flux when treating challenging saline wastewater containing low surface tension organic contaminants.
Collapse
Affiliation(s)
- Yun Chul Woo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS) , P.O. Box 123, 15 Broadway, New South Wales 2007, Australia
- Environment and Plant Research Institute, Korea Institute of Civil Engineering and Building Technology (KICT) , 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Republic of Korea
| | - Youngjin Kim
- King Abdullah University of Science and Technology (KAUST) , Water Desalination and Reuse Center (WDRC), Division of Biological & Environmental Science & Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
| | - Minwei Yao
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS) , P.O. Box 123, 15 Broadway, New South Wales 2007, Australia
| | - Leonard D Tijing
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS) , P.O. Box 123, 15 Broadway, New South Wales 2007, Australia
| | - June-Seok Choi
- Environment and Plant Research Institute, Korea Institute of Civil Engineering and Building Technology (KICT) , 283, Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Republic of Korea
| | - Sangho Lee
- School of Civil and Environmental Engineering, Kookmin University , 77 Jeongneung-ro, Jung-gu, Seoul, 136-702, Republic of Korea
| | - Seung-Hyun Kim
- Department of Civil Engineering, Kyungnam University , Wolyoung-dong, Changwon 631-701, Republic of Korea
| | - Ho Kyong Shon
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS) , P.O. Box 123, 15 Broadway, New South Wales 2007, Australia
| |
Collapse
|
20
|
Cheng X, Pan F, Wang M, Li W, Song Y, Liu G, Yang H, Gao B, Wu H, Jiang Z. Hybrid membranes for pervaporation separations. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.07.009] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
21
|
Wang M, Xing R, Wu H, Pan F, Zhang J, Ding H, Jiang Z. Nanocomposite membranes based on alginate matrix and high loading of pegylated POSS for pervaporation dehydration. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.05.040] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
22
|
Delavari A, Baltus R. The Effect of the Pore Entrance on Particle Motion in Slit Pores: Implications for Ultrathin Membranes. MEMBRANES 2017; 7:membranes7030042. [PMID: 28796197 PMCID: PMC5618127 DOI: 10.3390/membranes7030042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/25/2017] [Accepted: 07/31/2017] [Indexed: 11/16/2022]
Abstract
Membrane rejection models generally neglect the effect of the pore entrance on intrapore particle transport. However, entrance effects are expected to be particularly important with ultrathin membranes, where membrane thickness is typically comparable to pore size. In this work, a 2D model was developed to simulate particle motion for spherical particles moving at small Re and infinite Pe from the reservoir outside the pore into a slit pore. Using a finite element method, particles were tracked as they accelerated across the pore entrance until they reached a steady velocity in the pore. The axial position in the pore where particle motion becomes steady is defined as the particle entrance length (PEL). PELs were found to be comparable to the fluid entrance length, larger than the pore size and larger than the thickness typical of many ultrathin membranes. Results also show that, in the absence of particle diffusion, hydrodynamic particle-membrane interactions at the pore mouth result in particle "funneling" in the pore, yielding cross-pore particle concentration profiles focused at the pore centerline. The implications of these phenomena on rejection from ultrathin membranes are examined.
Collapse
Affiliation(s)
- Armin Delavari
- Department of Chemical & Biomolecular Engineering, Clarkson University, Potsdam, NY 13699-5705, USA.
| | - Ruth Baltus
- Department of Chemical & Biomolecular Engineering, Clarkson University, Potsdam, NY 13699-5705, USA.
| |
Collapse
|