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Journal articles on the topic 'Dual layer membranes'

Author: Grafiati

Published: 10 January 2023

Last updated: 31 July 2025

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1

Boztepe, Inci, Stephen Gray, Jianhua Zhang, and Jun-De Li. "Performance modelling of direct contact membrane distillation using a hydrophobic/hydrophilic dual-layer membrane." Journal of Water Reuse and Desalination 11, no. 3 (2021): 490–507. http://dx.doi.org/10.2166/wrd.2021.072.

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Abstract HFP-co-PVDF/N6 hydrophobic/hydrophilic dual-layer membrane was used to study desalination with direct contact membrane distillation (DCMD). A one-dimensional (1-D) model was proposed to predict the flux and thermal efficiency. Heat and mass transfer equations were solved numerically for the combined hydrophilic and hydrophobic layers. The membrane characteristics of the hydrophobic layer were considered for the calculation of the mass transfer coefficients, while the hydrophilic layer was ignored since it was assumed to be filled with water. However, the hydrophilic layer was taken in

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2

Grünig, Lara, Ulrich A. Handge, Joachim Koll, et al. "Hydrophilic Dual Layer Hollow Fiber Membranes for Ultrafiltration." Membranes 10, no. 7 (2020): 143. http://dx.doi.org/10.3390/membranes10070143.

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In this study, a triblock copolymer was used as additive to fabricate new dual layer hollow fiber membranes with a hydrophilic active inner surface in order to improve their fouling resistance. The polymeric components of the solutions for membrane fabrication were poly(ether sulfone), poly(N-vinyl pyrrolidone), and the triblock copolymer. The additive consists of three blocks: a middle hydrophobic poly(ether sulfone) block and two outer hydrophilic alkyl poly(ethylene glycol) blocks. By varying the additive concentration in the solutions, it was possible to fabricate dual layer hollow fiber m

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3

Wojciechowski, Cezary, Monika Wasyłeczko, Dorota Lewińska, and Andrzej Chwojnowski. "A Comprehensive Review of Hollow-Fiber Membrane Fabrication Methods across Biomedical, Biotechnological, and Environmental Domains." Molecules 29, no. 11 (2024): 2637. http://dx.doi.org/10.3390/molecules29112637.

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This work presents methods of obtaining polymeric hollow-fiber membranes produced via the dry–wet phase inversion method that were published in renowned specialized membrane publications in the years 2010–2020. Obtaining hollow-fiber membranes, unlike flat membranes, requires the use of a special installation for their production, the most important component of which is the hollow fiber forming spinneret. This method is most often used in obtaining membranes made of polysulfone, polyethersulfone, polyurethane, cellulose acetate, and its derivatives. Many factors affect the properties of the m

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Jang, Kyunghoon, Thanh-Tin Nguyen, Eunsung Yi, Chang Seong Kim, Soo Wan Kim, and In S. Kim. "Open Pore Ultrafiltration Hollow Fiber Membrane Fabrication Method via Dual Pore Former with Dual Dope Solution Phase." Membranes 12, no. 11 (2022): 1140. http://dx.doi.org/10.3390/membranes12111140.

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Hollow-fiber membranes are widely used in various fields of membrane processes because of their numerous properties, e.g., large surface area, high packing density, mass production with uniform quality, obvious end-of-life indicators, and so on. However, it is difficult to control the pores and internal properties of hollow-fiber membranes due to their inherent structure: a hollow inside surrounded by a wall membrane. Herein, we aimed to control pores and the internal structure of hollow-fiber membranes by fabricating a dual layer using a dual nozzle. Two different pore formers, polyethylene g

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5

Vatani, M., A. Raisi, and G. Pazuki. "Pervaporation separation of ethyl acetate from aqueous solutions using ZSM-5 filled dual-layer poly(ether-block-amide)/polyethersulfone membrane." RSC Advances 8, no. 9 (2018): 4713–25. http://dx.doi.org/10.1039/c7ra13382k.

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Dual-layer mixed matrix membranes were prepared by incorporating ZSM-5 zeolite into PEBA as an active layer on the PES membrane as a support layer for pervaporation separation of EAc from the EAc/water mixtures.

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Tsai, Chung-Yi, Siu-Yue Tam, Yunfeng Lu, and C. Jeffrey Brinker. "Dual-layer asymmetric microporous silica membranes." Journal of Membrane Science 169, no. 2 (2000): 255–68. http://dx.doi.org/10.1016/s0376-7388(99)00343-9.

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7

Kim, Jihyeon, Jinwon Lee, Lindsey B. Bezek, Bumjin Park, and Kwan-Soo Lee. "Use of Nucleating Agent NA11 in the Preparation of Polyvinylidene Fluoride Dual-Layer Hollow Fiber Membranes." Membranes 13, no. 1 (2023): 75. http://dx.doi.org/10.3390/membranes13010075.

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Polyvinylidene fluoride (PVDF) dual-layer hollow fiber membranes were simultaneously fabricated by thermally induced phase separation (TIPS) and non-solvent induced phase separation (NIPS) methods using a triple orifice spinneret (TOS) for water treatment application. The support layer was prepared from a TIPS dope solution, which was composed of PVDF, gamma-butyrolactone (GBL), and N-methyl-2-pyrrolidone (NMP). The coating layer was prepared from a NIPS dope solution, which was composed of PVDF, N,N-dimethylacetamide (DMAc), and polyvinylpyrrolidone (PVP). In order to improve the mechanical s

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8

Shi, Huyan, Lixin Xue, Ailin Gao, and Qingbo Zhou. "Dual layer hollow fiber PVDF ultra-filtration membranes containing Ag nano-particle loaded zeolite with longer term anti-bacterial capacity in salt water." Water Science and Technology 73, no. 9 (2016): 2159–67. http://dx.doi.org/10.2166/wst.2016.062.

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Dual layer polyvinylidene fluoride (PVDF), antibacterial, hollow fiber, ultra-filtration composite membranes with antibacterial particles (silver (Ag) nano-particles loaded zeolite (Z-Ag)) in the outer layer were prepared with high water flux and desired pore sizes. The amounts of Ag+ released from the composite membranes, freshly made and stored in water and salt solution, were measured. The result indicated that dual layer PVDF antibacterial hollow fiber containing Z-Ag (M-1-Ag) still possessed the ability of continuous release of Ag+ even after exposure to water with high ionic content, sho

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9

Park, Sung-Joon, Won-Gi Ahn, Wansuk Choi, et al. "A facile and scalable fabrication method for thin film composite reverse osmosis membranes: dual-layer slot coating." Journal of Materials Chemistry A 5, no. 14 (2017): 6648–55. http://dx.doi.org/10.1039/c7ta00891k.

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10

Karim, Syed Shujaat, Sarah Farrukh, Arshad Hussain, Tayyaba Noor, and Mohammad Younas. "A comprehensive overview of dual-layer composite membrane for air (O₂/N₂) separation." Polymers and Polymer Composites 29, no. 9_suppl (2021): S1630—S1640. http://dx.doi.org/10.1177/09673911211045852.

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The separation of air (O2/N2) via a polymeric membrane has recently piqued the interest of academic researcher as well as the industrial sector. Because of its remarkable characteristics, the polymeric membrane has emerged as one of the innovative and fast growing technology. However, two major problems faced by membrane technology, which hinder its growth in the commercial sector are, 1): The trade-off between permeability and selectivity. 2): Maintaining physical and chemical structural stability in a long-term commercial scale process. Recent advancements in membrane material, structural, a

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11

Xomeritakis, G., N. G. Liu, Z. Chen, et al. "Anodic alumina supported dual-layer microporous silica membranes." Journal of Membrane Science 287, no. 2 (2007): 157–61. http://dx.doi.org/10.1016/j.memsci.2006.10.039.

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12

Hilke, Roland, Neelakanda Pradeep, Ali Reza Behzad, Suzana P. Nunes, and Klaus-Viktor Peinemann. "Block copolymer/homopolymer dual-layer hollow fiber membranes." Journal of Membrane Science 472 (December 2014): 39–44. http://dx.doi.org/10.1016/j.memsci.2014.08.031.

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13

Gonçalves, Flavia, Roberta Molisani Letomai, Marjory Muraro Gomes, et al. "Dexamethasone-Functionalized PLLA Membranes: Effects of Layer-by-Layer Coating and Electrospinning on Osteogenesis." Bioengineering 12, no. 2 (2025): 130. https://doi.org/10.3390/bioengineering12020130.

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The addition of dexamethasone in membranes for guided bone regeneration is promising due to its dual effect: (1) anti-inflammatory action and (2) induction of osteogenesis in host stem cells. Electrospun fiber coating with dexamethasone using the layer-by-layer (LBL) technique offers an interesting alternative for the gradual release of the drug, aiming for enhanced osteodifferentiation activity. This study aimed to develop synthetic poly-L-lactide (PLLA) membranes with dexamethasone incorporated into the fibers or coated on their surface, and to evaluate the drug release rate, as well as the

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14

Vanangamudi, Anbharasi, Ludovic Dumée, Mikel Duke, and Xing Yang. "Dual Functional Ultrafiltration Membranes with Enzymatic Digestion and Thermo-Responsivity for Protein Self-Cleaning." Membranes 8, no. 3 (2018): 85. http://dx.doi.org/10.3390/membranes8030085.

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Controlling surface–protein interaction during wastewater treatment is the key motivation for developing functionally modified membranes. A new biocatalytic thermo-responsive poly vinylidene fluoride (PVDF)/nylon-6,6/poly(N-isopropylacrylamide)(PNIPAAm) ultrafiltration membrane was fabricated to achieve dual functionality of protein-digestion and thermo-responsive self-cleaning. The PVDF/nylon-6,6/PNIPAAm composite membranes were constructed by integrating a hydrophobic PVDF cast layer and hydrophilic nylon-6,6/PNIPAAm nanofiber layer on to which trypsin was covalently immobilized. The enzyme

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15

Huda, N., E. Lulu Atika Rampun, R. Ayu Lestari, Y. Raharjo, D. Heri Yuli Yanto, and M. Elma. "Membrane pervaporation performance applied for brackish water prepared by vacuum impregnation method." IOP Conference Series: Materials Science and Engineering 1195, no. 1 (2021): 012056. http://dx.doi.org/10.1088/1757-899x/1195/1/012056.

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Abstract Coating method and number of membrane layer are crucial factors on membrane performance. Through a vacuum impregnation method allows a sol solution uniformly fill into membrane support and it is required only less solution. The aim of this study is to apply vacuum impregnation method through vacuum calcination and air calcination during fabrication of silica membranes and to investigate the effect of layer variations on silica membranes performance to apply for brackish water. The sol solution was made from TEOS as silane precursor, ethanol and dual catalysts (citric acid + ammonia).

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16

González-Revuelta, Daniel, Marcos Fallanza, Alfredo Ortiz, and Daniel Gorri. "Thin-Film Composite Matrimid-Based Hollow Fiber Membranes for Oxygen/Nitrogen Separation by Gas Permeation." Membranes 13, no. 2 (2023): 218. http://dx.doi.org/10.3390/membranes13020218.

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In recent years, the need to reduce energy consumption worldwide to move towards sustainable development has led many of the conventional technologies used in the industry to evolve or to be replaced by new alternatives. Oxygen is a compound with diverse industrial and medical applications. For this reason, obtaining it from air is one of the most interesting separations, traditionally performed by cryogenic distillation and pressure swing adsorption, two techniques which are very energetically expensive. In this sense, the implementation of membranes in a hollow fiber configuration is present

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17

Yaacob, Nurshahnawal, Pei Sean Goh, Ahmad Fauzi Ismail, et al. "ZrO2-TiO2 Incorporated PVDF Dual-Layer Hollow Fiber Membrane for Oily Wastewater Treatment: Effect of Air Gap." Membranes 10, no. 6 (2020): 124. http://dx.doi.org/10.3390/membranes10060124.

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Dual-layer hollow fiber (DLHF) nanocomposite membrane prepared by co-extrusion technique allows a uniform distribution of nanoparticles within the membrane outer layer to enhance the membrane performance. The effects of spinning parameters especially the air gap on the physico-chemical properties of ZrO2-TiO2 nanoparticles incorporated PVDF DLHF membranes for oily wastewater treatment have been investigated in this study. The zeta potential of the nanoparticles was measured to be around –16.5 mV. FESEM–EDX verified the uniform distribution of Ti, Zr, and O elements throughout the nanoparticle

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18

Mansur, Sumarni, and Muhammad Nidzhom Zainol Abidin. "10-Year Historical Development of Dual Layer Hollow Fiber Hemodialysis Membranes." Journal of Applied Membrane Science & Technology 27, no. 1 (2023): 13–21. http://dx.doi.org/10.11113/amst.v27n1.258.

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Hollow fiber membranes have been employed to purify blood from within the heart of hemodialysis process, namely dialyzer. In the past 10 years, the interest on the utilization of dual layer hollow fiber (DLHF) membranes has arisen due to the innovative idea of combining adsorption and diffusion processes into one step. This short review outlines the historical development of DLHF hemodialysis membranes that spans from year 2012 to year 2022. The motivation and the outcome from the first and the second generation DLHF hemodialysis membranes are discussed. In addition, the use of DLHF membranes

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19

Grünig, Lara Elena, Ulrich Alexander Handge, Joachim Koll, et al. "Dual Layer Hollow Fiber Membranes with Functionalized Separation Layer for Improved Hydrophilicity." Chemie Ingenieur Technik 93, no. 9 (2021): 1451–56. http://dx.doi.org/10.1002/cite.202100034.

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20

Chen, Jiarui, Shouwei Liao, Jiajun Yan, et al. "Dual hydrogen bonds stabilize layer-by-layer membranes in highly saline environments." Journal of Membrane Science 731 (July 2025): 124235. https://doi.org/10.1016/j.memsci.2025.124235.

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21

Xia, Qian-Cheng, Mei-Ling Liu, Xue-Li Cao, Yong Wang, Weihong Xing, and Shi-Peng Sun. "Structure design and applications of dual-layer polymeric membranes." Journal of Membrane Science 562 (September 2018): 85–111. http://dx.doi.org/10.1016/j.memsci.2018.05.033.

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22

Sukaini, Khalis, Siti Hawa Mohamed Noor, Sumarni Mansur, et al. "Photodegradation of Bisphenol a in Water via Round-the-Clock Visible Light Driven Dual Layer Hollow Fiber Membrane." Catalysts 13, no. 5 (2023): 816. http://dx.doi.org/10.3390/catal13050816.

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Bisphenol A (BPA) is an endocrine-disrupting chemical (EDC) that can cause adverse effects on human health. The incorporation of materials as visible light photocatalysts and its energy storage capability allow for the photodegradation of BPA, especially in the absence of a light source. To date, there have been no significant studies regarding energy storage in membrane technology, with only a focus on the suspension form. Hence, this study was conducted to degrade the pollutant through a co-extrusion process using a mixture of copper (II) oxide and tungsten oxide as the photocatalyst and ene

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23

Mansur, Sumarni, Mohd Hafiz Dzarfan Othman, Nurul Jannah Ismail, et al. "Hybrid Inorganic Organic PSF/Hap Dual-Layer Hollow Fibre Membrane for the Treatment of Lead Contaminated Water." Membranes 13, no. 2 (2023): 170. http://dx.doi.org/10.3390/membranes13020170.

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Lead (Pb) exposure can be harmful to public health, especially through drinking water. One of the promising treatment methods for lead contaminated water is the adsorption-filtration method. To ensure the cost-effectiveness of the process, naturally derived adsorbent shall be utilised. In this study, hydroxyapatite particles, Ca10(PO4)6(OH)2 (HAP) derived from waste cockle shell, were incorporated into the outer layer of polysulfone/HAP (PSf/HAP) dual-layer hollow fibre (DLHF) membrane to enhance the removal of lead from the water source due to its hydrophilic nature and excellent adsorption c

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Alam, Javed, Arun Kumar Shukla, Lawrence Arockiasamy, and Mansour Alhoshan. "Scale Design of Dual-Layer Polyphenylsulfone/Sulfonated Polyphenylsulfone Hollow Fiber Membranes for Nanofiltration." Membranes 13, no. 8 (2023): 714. http://dx.doi.org/10.3390/membranes13080714.

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This study focuses on the synthesis and characterization of dual-layer sulfonated polyphenylenesulfone (SPPSu) nanocomposite hollow fiber nanofiltration membranes incorporating titanium dioxide (TiO2) nanoparticles through the phase inversion technique. Advanced tools and methods were employed to systematically evaluate the properties and performance of the newly developed membranes. The investigation primarily centered on the impact of TiO2 addition in the SPPSu inner layer on pure water permeability and salt rejection. The nanocomposite membranes exhibited a remarkable three-fold increase in

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25

Deng, Li, Peiyun Li, Kang Liu, Xuefen Wang, and Benjamin S. Hsiao. "Robust superhydrophobic dual layer nanofibrous composite membranes with a hierarchically structured amorphous polypropylene skin for membrane distillation." Journal of Materials Chemistry A 7, no. 18 (2019): 11282–97. http://dx.doi.org/10.1039/c9ta02662b.

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26

Hei, Yuepeng, Zuojun Lu, Claudia Li та ін. "Ce0.8Y0.2O2-δ-BaCe0.8Y0.2O3-δ Dual-Phase Hollow Fiber Membranes for Hydrogen Separation". Inorganics 11, № 9 (2023): 360. http://dx.doi.org/10.3390/inorganics11090360.

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Partial oxidation of methane (POM) is a prominent pathway for syngas production, wherein the hydrogen in syngas product can be recovered directly from the reaction system using a hydrogen (H2)-permeable membrane. Enhancing the efficiency of this H2 separation process is a current major challenge. In this study, Ce0.8Y0.2O2-δ-BaCe0.8Y0.2O3-δ (YDC-BCY) hollow fiber (HF) membranes were developed and characterized for their H2 permeation fluxes. Firstly, YDC and BCY ceramic powders were synthesized using the sol-gel method, followed by the fabrication of YDC-BCY dual-phase ceramic HF membranes usi

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27

Mohamed Noor, Siti Hawa, Mohd Hafiz Dzarfan Othman, Watsa Khongnakorn, et al. "Bisphenol A Removal Using Visible Light Driven Cu2O/PVDF Photocatalytic Dual Layer Hollow Fiber Membrane." Membranes 12, no. 2 (2022): 208. http://dx.doi.org/10.3390/membranes12020208.

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Bisphenol A (BPA) is amongst the endocrine disrupting compounds (EDCs) that cause illness to humans and in this work was removed using copper (I) oxide (Cu2O) visible light photocatalyst which has a narrow bandgap of 2.2 eV. This was done by embedding Cu2O into polyvinylidene fluoride (PVDF) membranes to generate a Cu2O/PVDF dual layer hollow fiber (DLHF) membrane using a co-extrusion technique. The initial ratio of 0.25 Cu2O/PVDF was used to study variation of the outer dope extrusion flowrate for 3 mL/min, 6 mL/min and 9 mL/min. Subsequently, the best flowrate was used to vary Cu2O/PVDF for

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28

Hampu, Nicholas, Jay R. Werber, and Marc A. Hillmyer. "Co-Casting Highly Selective Dual-Layer Membranes with Disordered Block Polymer Selective Layers." ACS Applied Materials & Interfaces 12, no. 40 (2020): 45351–62. http://dx.doi.org/10.1021/acsami.0c13726.

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29

Low, Bee Ting, Natalia Widjojo, and Tai Shung Chung. "Polyimide/Polyethersulfone Dual-Layer Hollow Fiber Membranes for Hydrogen Enrichment." Industrial & Engineering Chemistry Research 49, no. 18 (2010): 8778–86. http://dx.doi.org/10.1021/ie1008986.

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30

Othman, N. H., Z. Wu, and K. Li. "Functional Dual-Layer Ceramic Hollow Fibre Membranes for Methane Conversion." Procedia Engineering 44 (2012): 1484–85. http://dx.doi.org/10.1016/j.proeng.2012.08.838.

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31

Somrani, Anissa, Mehri Shabani, Zaineb Mohamed, et al. "Dual Repurposing of End-of-Life BWRO Membranes: Ultrafiltration Membranes for Advanced Wastewater Treatment and Cation Exchange Membranes for Fungal Microbial Fuel Cells." Membranes 15, no. 1 (2024): 5. https://doi.org/10.3390/membranes15010005.

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The objective of this study is to evaluate the degradation of end-of-life BWRO membranes sourced from a factory in France by analyzing their water permeability, roughness, and chemical composition in order to diagnose the level of degradation incurred during their first life cycle in water softening. Following this, two new applications for the end-of-life BWRO membranes were investigated: (i) as ultrafiltration membranes (UF) for domestic effluent treatment and (ii) as cation exchange membranes (CEM) for use in fungal microbial fuel cells (FMFC). The UF membrane was renovated with an acetic a

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32

Subramaniam, M. N., and Z. Wu. "Grand Challenges in Fabrication of Nanocomposite Hollow Fiber Membranes." Journal of Applied Membrane Science & Technology 26, no. 3 (2022): 37–43. http://dx.doi.org/10.11113/amst.v26n3.251.

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Membrane processes allow scalable and energy-efficient separation of gas and liquid, advance low-carbon purifications in various industrial and environmental applications and enable more resilient economy and society. In pursuit of developing more advanced membranes with continuously improved separating performances, nanofillers have been commonly incorporated into membranes to upgrade membrane properties such as mechanical robustness, antifouling ability, and permeability etc., across all types of popular membrane geometries from flat sheet and spiral wound to hollow fiber. Nanofillers inside

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Al-Hezaimi, Khalid, Giovanna Iezzi, Ivan Rudek, et al. "Histomorphometric Analysis of Bone Regeneration Using a Dual Layer of Membranes (dPTFE Placed Over Collagen) in Fresh Extraction Sites: A Canine Model." Journal of Oral Implantology 41, no. 2 (2015): 188–95. http://dx.doi.org/10.1563/aaid-joi-d-13-00027.

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In untreated extraction sockets, buccal bone remodeling compromises the alveolar ridge width. The aim of this study was to histologically assess the efficacy of using a dual layer of membranes (high-density polytetrafluoroethylene [dPTFE] placed over collagen) for ridge preservation in fresh extraction sites. Eight beagle dogs were used. After endodontic treatment of mandibular bilateral second (P2), third (P3), and fourth (P4) premolars, mandibular bilateral first premolars and distal roots of P2, P3, and P4 were extracted atraumatically. Animals were randomly divided into 4 treatment groups.

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Zarshenas, Kiyoumars, Ahmadreza Raisi, and Abdolreza Aroujalian. "Surface modification of polyamide composite membranes by corona air plasma for gas separation applications." RSC Advances 5, no. 25 (2015): 19760–72. http://dx.doi.org/10.1039/c4ra15547e.

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Younes, Khaled, Omar Mouhtady, Hamdi Chaouk, et al. "The Application of Principal Component Analysis (PCA) for the Optimization of the Conditions of Fabrication of Electrospun Nanofibrous Membrane for Desalination and Ion Removal." Membranes 11, no. 12 (2021): 979. http://dx.doi.org/10.3390/membranes11120979.

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Nowadays, acquiring a water supply for urban and industrial uses is one of the greatest challenges facing humanity for ensuring sustainability. Membrane technology has been considered cost-effective, encompasses lower energy requirements, and at the same time, offers acceptable performance. Electrospun nanofibrous membranes (ENMs) are considered a novel and promising strategy for the production of membranes that could be applied in several treatment processes, especially desalination and ion removal. In this study, we apply an unsupervised machine-learning strategy, the so-called principal com

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Souare, Mamadou, Changqing Dong, Xiaoying Hu, Junjiao Zhang, Juejie Xue, and Quanjun Zheng. "Carbonized Dual-Layer Balsa Wood Membrane for Efficient Oil–Water Separation in Kitchen Applications." Membranes 15, no. 6 (2025): 160. https://doi.org/10.3390/membranes15060160.

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Wood-based membranes have garnered increasing attention due to their structural advantages and durability in the efficient treatment of oily kitchen wastewater. However, conventional fabrication methods often rely on toxic chemicals or synthetic processes, generating secondary pollutants and suffering from fouling, which reduces performance and increases resource loss. In this study, an innovative bilayer membrane was developed from balsa wood by combining a hydrophilic longitudinal layer for water transport with a polydimethylsiloxane (PDMS)-impregnated carbonized transverse layer to enhance

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Ji, Tongtai, and Hongli Zhu. "Large Scalable High Ion Conductive and Selective Double Layer Membrane Achieved through Dual Ion Conducting Mechanisms." ECS Meeting Abstracts MA2023-01, no. 3 (2023): 754. http://dx.doi.org/10.1149/ma2023-013754mtgabs.

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As the share of sustainable energy sources in the electricity supply rises, large-scale energy storage becomes increasingly important. All vanadium flow batteries, as one of the most promising large-scale energy storage methods, have reached the commercialization stage because of their unique feature of uncoupling power and energy, as well as the advantages of long life, high safety, and low cost. The ion-selective membrane is an essential part of flow batteries, which allows specific ions to pass through to maintain a neutral charge and prevents the crossover of active species to maintain the

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38

Bonyadi, Sina, and Tai Shung Chung. "Flux enhancement in membrane distillation by fabrication of dual layer hydrophilic–hydrophobic hollow fiber membranes." Journal of Membrane Science 306, no. 1-2 (2007): 134–46. http://dx.doi.org/10.1016/j.memsci.2007.08.034.

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Idarraga-Mora, Jaime A., Michael A. Lemelin, Steven T. Weinman, and Scott M. Husson. "Effect of Short-Term Contact with C1–C4 Monohydric Alcohols on the Water Permeance of MPD-TMC Thin-Film Composite Reverse Osmosis Membranes." Membranes 9, no. 8 (2019): 92. http://dx.doi.org/10.3390/membranes9080092.

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In this paper, we discuss the effect of alcohol contact on the transport properties of thin-film composite reverse osmosis membranes. Five commercial membranes were studied to quantify the changes in water permeance and sodium chloride rejection from contact with five C1–C4 monohydric, linear alcohols. Water permeance generally increased without decreasing rejection after short-term contact. The extent of these changes depends on the membrane and alcohol used. Young′s modulus measurements showed decreased stiffness of the active layer after contacting the membranes with alcohol, suggesting pla

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Setiawan, Laurentia, Rong Wang, Lei Shi, Kang Li, and Anthony G. Fane. "Novel dual-layer hollow fiber membranes applied for forward osmosis process." Journal of Membrane Science 421-422 (December 2012): 238–46. http://dx.doi.org/10.1016/j.memsci.2012.07.020.

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41

Al-Ogaili, Mohammed Faleh Abd, Mohd Hafiz Dzarfan Othman, Mohammad Rava, et al. "Enhancing Hydrophobic/Hydrophilic Dual-Layer Membranes for Membrane Distillation: The Influence of Polytetrafluoroethylene (PTFE) Particle Size and Concentration." Sustainability 15, no. 20 (2023): 14931. http://dx.doi.org/10.3390/su152014931.

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This study assesses the effects of different polytetrafluoroethylene (PTFE) particle sizes and concentrations on the performance of dual-layer membranes in direct contact membrane distillation (DCMD). Specifically, particle sizes of 0.5 μm, 1 μm, and 6 μm were systematically evaluated at concentrations of 0 wt%, 2 wt%, 4 wt%, and 6 wt%. Comprehensive analyses, including scanning electron microscopy (SEM), liquid entry pressure (LEP), contact angle, thermogravimetric analysis (TGA), mercury intrusion porosimetry (MIP), atomic force microscopy (AFM), permeate flux, nitrogen gas permeation, and s

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Arif, Muhammad Irsalan, Randolph Chi Kin Leung, Garret Lam, and Muhammad Rehan Naseer. "Fluid-Structure Interactions and Aeroacoustic coupling of Airfoil with Flexible Membrane(s)." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 3 (2023): 4166–77. http://dx.doi.org/10.3397/in_2022_0594.

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In this paper, fluid-structure interactions of a NACA 0012 airfoil mounted with short flexible membrane(s) and its coupling effect on airfoil aeroacoustics are presented. A time-domain direct aeroacoustic simulation coupled with structural dynamics is carried out at a low Reynolds number of 50,000 to explore the aeroacoustic-structural interactions. Two different airfoil configurations based on single and dual membranes are analyzed. The membrane deflections and their impact on the flow field are characterized in wavenumber-frequency domain to analyze the structural dynamics due to flow unstea

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Zhi-Yuan, Ling, Chen Shuo-Shuo, Hu Xing, and Li Yi. "Optical Transmission Spectra of Anodic Aluminum Oxide Membranes with a Dual Layer-by-Layer Structure." Chinese Physics Letters 26, no. 5 (2009): 054213. http://dx.doi.org/10.1088/0256-307x/26/5/054213.

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Worou, Chabi N., and Zhonglin Chen. "Membranes with a dual structure constituted of titania, zirconia, and both as thin-film selective layers coating the polyacrylonitrile platform." Journal of Water Supply: Research and Technology-Aqua 70, no. 3 (2021): 303–16. http://dx.doi.org/10.2166/aqua.2021.147.

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Abstract Three novel thin-film composite (TFC) nanofiltration membranes are prepared using an ultrafiltration membrane (UFM) of organic polymer resin polyacrylonitrile followed by a mineralization process. The UFM was hydrolyzed (H-UFM) and then transferred in dopamine (DA) and tris buffer (TRIS) solutions. DA–TRIS coating is further favorable for the growth of nanoparticles (NPs), titania (TiO2), and zirconia (ZrO2) on membrane piece surface. A scanning electron microscope (SEM) was combined with an energy-dispersive spectrometer (EDS) in order to provide important insights into the arrangeme

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Yang, Zezhou, Ryszard Wycisk, and Peter N. Pintauro. "(Invited) Bipolar Membranes with a 3D Junction of Interlocking Electrospun Fibers." ECS Meeting Abstracts MA2022-02, no. 44 (2022): 1661. http://dx.doi.org/10.1149/ma2022-02441661mtgabs.

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Bipolar membranes (BPMs), typically laminated layers of anion-exchange and cation-exchange polymers, have the unique capability of splitting water at a potential near 0.83 V. Such membranes are used in electrodialysis membrane separation processes. They also have applications in water electrolyzers, CO2 electrolysis cells, and self-humidifying fuel cells. We report here on recent developments regarding BPMs with a high interfacial area, 3D nanofiber junction. Membranes were prepared by first creating a bipolar junction layer, by the simultaneous electrospinning of anion-exchange and cation-exc

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Su, Minglue, May May Teoh, Kai Yu Wang, Jincai Su, and Tai-Shung Chung. "Effect of inner-layer thermal conductivity on flux enhancement of dual-layer hollow fiber membranes in direct contact membrane distillation." Journal of Membrane Science 364, no. 1-2 (2010): 278–89. http://dx.doi.org/10.1016/j.memsci.2010.08.028.

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Tong, Jingjing, Fengzhan Si, Lingling Zhang, Jie Fang, Minfang Han, and Kevin Huang. "Stabilizing electrochemical carbon capture membrane with Al2O3 thin-film overcoating synthesized by chemical vapor deposition." Chemical Communications 51, no. 14 (2015): 2936–38. http://dx.doi.org/10.1039/c4cc09352f.

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The stability of electrochemical silver-carbonate dual-phase membranes can be significantly enhanced by overcoating the surfaces of porous silver matrix with a uniform layer of Al<sub>2</sub>O<sub>3</sub> thin-film derived from chemical vapor deposition.

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Zhao, Lihua, Chunrui Wu, Xiaolong Lu, et al. "Theoretical guidance for fabricating higher flux hydrophobic/hydrophilic dual-layer membranes for direct contact membrane distillation." Journal of Membrane Science 596 (February 2020): 117608. http://dx.doi.org/10.1016/j.memsci.2019.117608.

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Dzinun, Hazlini, Mohd Hafiz Dzarfan Othman, A. F. Ismail, Mohd Hafiz Puteh, Mukhlis A. Rahman, and Juhana Jaafar. "Performance evaluation of co-extruded microporous dual-layer hollow fiber membranes using a hybrid membrane photoreactor." Desalination 403 (February 2017): 46–52. http://dx.doi.org/10.1016/j.desal.2016.05.029.

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Sun, Shi Peng, Kai Yu Wang, Na Peng, T. Alan Hatton, and Tai-Shung Chung. "Novel polyamide-imide/cellulose acetate dual-layer hollow fiber membranes for nanofiltration." Journal of Membrane Science 363, no. 1-2 (2010): 232–42. http://dx.doi.org/10.1016/j.memsci.2010.07.038.

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