Article
Materials Science, Ceramics
Renata Vicente, Karina Cesca, Anderson Felipe Viana Silva, Debora de Oliveira, Cristiano Jose de Andrade, Alan Ambrosi
Summary: Producing ceramic asymmetric membranes usually involves multiple steps, which is time-consuming and expensive. This study aimed to prepare ultrafiltration ceramic membranes using centrifugal casting technique and investigate the effect of a pore-forming agent on membrane performance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Engineering, Chemical
Yingnan Feng, Martin Weber, Christian Maletzko, Tai-Shung Chung
Summary: Structural delamination across the hollow fiber wall is a major challenge in the fabrication of dual-layer hollow fiber membranes. The bore fluid composition has the most profound impact on fiber delamination. Carefully designed spinning conditions can mitigate the occurrence of delamination and result in membranes with improved water filtration permeance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Diana C. Calvo, Hye Youn Jang, Yi Ren, Omar Arafa, Ryan P. Lively, Bruce E. Rittmann, Cesar I. Torres
Summary: Bioconversion of syngas to organics is achieved using a high-flux, low-selectivity hollow-fiber membrane. This asymmetric membrane demonstrates significantly higher gas fluxes compared to commercial membranes, making it highly desirable for syngas bioconversion. Despite its higher selectivity, the membrane delivers gases at high rates without selectivity toward any component, ensuring syngas conversion stoichiometry is maintained.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Engineering, Chemical
Svetlana Yu Markova, Martin Pelzer, Maxim G. Shalygin, Thomas Vad, Thomas Gries, Vladimir V. Teplyakov
Summary: This study investigated the gas transfer and selective properties of PMP hollow fibres produced by melt spinning technology. The permeance of methane in mixture with N2 and CO2 was found to be similar to pure methane transport, while the presence of butane changed PMP properties. Increasing butane activity led to a significant increase in permeation flux of both butane and methane through the walls of the fibres. Transition from methane-selective to butane-selective properties in PMP was observed with changes in butane activity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Do Young Kim, Seungbo Ryu, Hyoung-Juhn Kim, Hyung Chul Ham, Hyuntae Sohn, Sung Pil Yoon, Jonghee Han, Tae-Hoon Lim, Jin Young Kim, Seung Woo Lee, Chang Won Yoon, Sun Hee Choi
Summary: In this study, a hydrogen-selective membrane based on asymmetric polybenzimidazole (PBI) demonstrated high permeability and permselectivity. The addition of LiCl increased polymer chain density, solution concentration, and stability of the membrane structure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Thiago Sousa E. Sousa, Eduardo de Paulo Ferreira, Patricia Angelica Vieira, Miria Hespanhol Miranda Reis
Summary: The photocatalytic degradation of methylene blue was investigated using dispersed and supported zinc oxide as catalysts. The efficiency of the catalyst was found to be strongly correlated with the initial dye concentration. The treated solutions showed low toxicity and the catalyst exhibited good stability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Ceramics
Angelo Oliveira Silva, Dachamir Hotza, Ricardo Machado, Kurosch Rezwan, Michaela Wilhelm
Summary: An asymmetric alumina microfiltration membrane with high performance was prepared by combining freeze and tape casting techniques followed by two sintering steps. The morphology influences were investigated for different solid loadings, additives content and the assembled layer membrane structures. The assembled ceramic membrane had an average pore size between 30 and 50 m, suitable for microfiltration separation with porosity in the range of 26-50% and water flux of 11-32 m(3) m(-2) h(-1) bar(-1).
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Ting Chen, Dongyu Wang, Xianfu Chen, Minghui Qiu, Yiqun Fan
Summary: A novel method for preparing high-flux ceramic membranes through digital light processing (DLP) three-dimensional (3D) printing technology was proposed in this study, with systematic investigations on the effects of slurry properties and thermal treatment conditions. The obtained ceramic membranes exhibited uniform pore size distribution, high porosity, low tortuosity factor, and asymmetric structure, leading to high flux. DLP 3D printing showed potential as a strong candidate for the next generation of ceramic membrane fabrication technology.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Chemical
Mingming Wang, Zhigang Wang, Xiaoyao Tan, Shaomin Liu
Summary: Highly-asymmetric metallic Ni hollow fiber membranes were fabricated using a modified phase inversion and sintering technique. By adjusting spinning conditions and sintering parameters, a hollow fiber with optimized microstructure and significantly increased hydrogen flux was achieved, demonstrating great potential for application in gas separation processes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Maryam Meshksar, Fatemeh Salahi, Fatemeh Zarei-Jelyani, Mohammad Reza Rahimpour, Mohammad Farsi
Summary: This study focuses on controlling the morphology and crystalline phase of hollow Al2O3 spheres as a supporting material for Ni-based catalysts in high-temperature steam methane reforming process. Among the parameters investigated, the 20Ni/H-Al2O3 catalyst exhibited the highest CH4 conversion and H-2 yield at 700 degrees C, showing stable performance with low carbon deposition during the reaction.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Chemical
Myongjin Lee, Yun Gan, Chunyang Yang, Chunlei Ren, Xingjian Xue
Summary: The research focuses on the fabrication and optimization of asymmetrical hollow fiber-supported thin film membranes, aiming to enhance stability and reduce costs for practical applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Optics
Xi Zhang, Zitong Feng, David Marpaung, Eric Numkam Fokoua, Hesham Sakr, John Richard Hayes, Francesco Poletti, David John Richardson, Radan Slavik
Summary: Analogue signal transmission is preferred in many applications due to lower cost or superior performance. However, the performance of long analogue photonics links using standard single-mode fibres (SSMF) is limited by impairments such as stimulated Brillouin scattering, chromatic dispersion, and Kerr nonlinearity. This study proposes using hollow-core optical fibres to address these shortcomings and demonstrates significant improvements in performance compared to SSMF links.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Engineering, Chemical
Masaaki Sekino
Summary: The study applied a two-layer membrane model to a hollow fiber forward osmosis module for the first time and validated the model through numerical calculations. The results showed that the structure of the support layer significantly influences FO performance, and adjusting the two properties of the support layer can enhance FO membrane permeability.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Materials Science, Composites
Guangyong Li, Dan Fang, Guo Hong, Alexander Eychmueller, Xuetong Zhang, Wenhui Song
Summary: This study develops graphene aerogel hollow fibers (GAHF) for solar steam generation, which demonstrates high efficiency for water evaporation and salt rejection in highly saline brine. Inspired by the capillary water transportation system in trees, the GAHF improves water flow and solar energy absorption, achieving continuous seawater desalination.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Chemical
M. Sheikh, M. Reig, X. Vecino, J. Lopez, M. Rezakazemi, C. A. Valderrama, J. L. Cortina
Summary: This study evaluated two novel hollow-fibre liquid-liquid membrane contactor modules, with S-type fibres performing well in ammonia recovery and Q-type fibres producing more concentrated liquid fertiliser. The stability of the membrane contactor under acidic and basic conditions was monitored using ultraviolet-visible spectroscopy and two-dimensional excitation-emission matrix fluorescence spectroscopy.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xuekun Lu, Tao Li, Antonio Bertei, Jason I. S. Cho, Thomas M. M. Heenan, Mohamad F. Rabuni, Kang Li, Dan J. L. Brett, Paul R. Shearing
ENERGY & ENVIRONMENTAL SCIENCE
(2018)
Article
Chemistry, Physical
Tatiya Khamhangdatepon, Vut Tongnan, Matthew Hartley, Thana Sornchamni, Nuchanart Siri-Nguan, Navadol Laosiripojana, Kang Li, Unalome Wetwatana Hartley
Summary: In this study, La0.3Sr0.7Co0.7Fe0.3O3 (LSCF3773) was used as an oxygen carrier material for synthesis gas production, and synthesized using the EDTA citrate complexing method. Different structures and active sites were observed at various reduction temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Maria Kazakli, Greg A. Mutch, Georgios Triantafyllou, Ana Gouveia Gil, Tao Li, Bo Wang, Josh J. Bailey, Dan J. L. Brett, Paul R. Shearing, Kang Li, Ian Metcalfe
Summary: Dual-phase molten salt-ceramic membranes show high permselectivity for CO2 when molten carbonate is supported in a porous oxygen-ion and/or electron conductor. In experiments with an inert support, controlled distribution of molten carbonate within hollow-fibre membranes led to increased CO2 permeation rates. The results suggest that increasing the interfacial area for desorption of CO2 is key in enhancing permeation rates.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Vatsal Shah, Bo Wang, Kang Li
Summary: PVDF membranes prepared by the combined crystallisation and diffusion technique showed superior permeation rates compared to conventional methods, and by blending PMMA into PVDF-DMSO solutions, the pore size was reduced from 30 nm to 15 nm without changing operational conditions. The pore size reduced with increasing PMMA concentration in the membranes, but pure water flux did not decline, and higher molecular weight PMMA resulted in smaller pore size in the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Sadao Araki, Ryosuke Yamashita, Kang Li, Hideki Yamamoto
Summary: An amorphous silica hollow fiber was prepared by the phase inversion method, and the effects of calcination temperature on its properties were investigated. A silica CHA zeolite membrane was synthesized on the silica hollow fiber support with relatively high CO2 permeance and CO2/CH4 selectivity achieved. Membranes prepared using seeding method showed improved CO2/CH4 selectivity and permeance compared to conventional CHA zeolite membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Vatsal Shah, Nicholaus Prasetya, Kang Li
Summary: The PVDF CCD membranes produced by the CCD method show higher pure water fluxes compared to conventional membrane manufacturing technology, but most are hydrophobic and prone to fouling. The PDA modification technique is used to improve hydrophilicity, but longer modification times lead to decreased permeability due to pore blockage. Shorter duration modification (2 hours) results in the best overall permeation performance in fouling studies.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Tongrong Wu, Farhad Moghadam, Kang Li
Summary: In this study, nano-scale pores were created on graphene oxide nanosheets through mild chemical etching to improve water permeance and dye rejection performance in porous hollow fiber membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Hao Peng, Andrijana Minic, Kornkamol Banjerdteerakul, Kang Li
Summary: A COF-300/PVDF composite was developed as a high-performance adsorbent for PAHs removal, showing superior adsorption capacity, kinetics, and removal efficiency compared to COF-300 powders. It holds great potential for practical applications in PAHs removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Hao Peng, Vatsal Shah, Kang Li
Summary: Phase inversion plays a vital role in membrane technology for economic production of polymeric membrane and energy-saving wastewater treatment. However, existing phase inversion membranes often have low permeance, limiting their efficiency in separation processes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Farhad Moghadam, Hao Peng, Kang Li
Summary: For the first time, a new approach was proposed to prepare porous hollow fiber (HF) yttria-stabilized zirconia (YSZ) substrates with small-diameter (660-790 μm, outer diameter (OD)) by stretching the nascent HF using gravitational force. Using a delayed phase inversion, a plurality of radial micro-channels opening from the interior surface of HFs can be realized. The resultant HF substrates show promising permeation characteristics and good fracture strength, and small-diameter HF substrates with higher surface curvature ensured the fabrication of porous GO (PGO) membranes with better dye separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Hao Peng, Kang Li
Summary: Nanofiltration is an effective method for removing emerging pharmaceuticals from waste-water to improve water quality and mitigate environmental impacts. However, the low separation efficiency of current nanofiltration membranes has hindered their development. In this study, a thin film composite membrane was prepared by stacking covalent organic framework (COF) nanosheets on a ceramic hollow fibre, showing high rejection for environmentally persistent pharmaceuticals. The COF-based nanofiltration membranes have a small footprint and can be easily integrated into existing water treatment systems, making them a promising option for mitigating the environmental impacts of emerging pharmaceuticals in wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Hao Peng, Kang Li
Summary: By employing an in-situ growth method, we successfully prepared COF-LZU1 and COF-300 membranes for the separation of polar/non-polar solvent mixtures. These composite membranes, consisting of a defect-free COF layer on a ceramic hollow fiber substrate, exhibited high solvent fluxes and achieved high separation factors for various azeotropic mixtures. Our study demonstrated the technical feasibility of using COF-based membranes for the separation of azeotropic solvent mixtures.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Hao Peng, Kang Li
Summary: In this study, a novel approach combining non-solvent-induced phase separation (NIPS) with crystallisation and diffusion (CCD) technique, called NIPS-CCD, was proposed to enhance the permeation of polyethersulfone (PES) ultrafiltration membrane. The NIPS-CCD method showed a 50-fold increase in water permeation to 771 LMH bar-1 with pore size of 6-7 nm. This approach can be easily adapted for other high-performance membrane materials, making it a promising strategy for improving membrane permeation properties.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kornkamol Banjerdteerakul, Hao Peng, Kang Li
Summary: Covalent organic frameworks (COFs) have shown potential as membrane materials for water purification and organic solvent nanofiltration due to their adjustable pore size and ease of functionalisation. However, current COF membranes are limited in their mechanical stability and structural integrity when applied on flexible polymeric substrates. In this study, COF-LZU1 membranes were fabricated on pre-designed ceramic hollow fibres using direct interfacial polymerisation, resulting in highly crystalline and defect-free COF layers. The membranes exhibited high pure water permeance and rejection rates for dyes, highlighting their potential for enhanced process intensification.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Vatsal Shah, Bo Wang, Kang Li
Summary: This study applies a new method to improve the permeation performance of PVDF membranes without sacrificing separation efficiency. By using a simple dual-casting technique, the specific properties of the membranes' separation and support layers can be tailored.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)
