Article
Chemistry, Multidisciplinary
Xuerui Wang, Tao Zhou, Ping Zhang, Wenfu Yan, Yongguo Li, Li Peng, Dylan Veerman, Mengyang Shi, Xuehong Gu, Freek Kapteijn
Summary: High-silica CHA zeolite membranes exhibit ultra-high selectivity and irradiation stability for Kr/Xe separation, surpassing state-of-the-art polymeric membranes in terms of selectivity and permeance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Chemical
Liang Yu, Mojtaba Sinaei Nobandegani, Jonas Hedlund
Summary: The study evaluated single channel tubular zeolite CHA membranes with excellent permeability and selectivity for industrially relevant gas mixtures. The membranes showed low SF6 permeance and high CO2 permeance, exhibiting potential for industrial separation of CO2 from gas mixtures.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shaowei Yang, Byunghyun Min, Qiang Fu, Christopher W. Jones, Sankar Nair
Summary: Viscosity-confined dry gel conversion (VCDGC) method is demonstrated for the fabrication of high-performance zeolite hollow fiber membranes. The synthesis and performance testing of small-pore CHA and medium-pore MFI membranes showcase the versatility and reliability of this method.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Biochemistry & Molecular Biology
Yasuhisa Hasegawa, Chie Abe, Mayumi Natsui, Ayumi Ikeda
Summary: In this study, a polycrystalline CHA-type zeolite layer with Si/Al = 18 was successfully formed on a porous alpha-Al2O3 tube, and the gas permeation properties were determined for various gases at different temperatures. The membrane exhibited selective permeation behavior based on molecular size, with high selectivities observed for N-2/SF6 and CO2/CH4. However, the CO2/N-2 selectivity was relatively low. These results suggest that the high-silica CHA-type zeolite membrane has potential for separating CO2 from CH4 through molecular sieving.
Article
Engineering, Chemical
Bin Wang, Weijie Huang, Yancai Zhu, Rongfei Zhou, Weihong Xing
Summary: Ultra-permeable SAPO-34 membranes with uniform thickness were successfully fabricated using diluted mother liquids. The membranes exhibited excellent separation performance and showed potential for large-scale production.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Mojtaba Sinaei Nobandegani, Liang Yu, Jonas Hedlund
Summary: Zeolite membrane processes showed significantly higher selectivity and permeance compared to polymeric membrane processes for biogas upgrading, resulting in lower cost and electricity consumption, as well as more compact design.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Nana Wang, Zibo He, Bin Wang, Bo Liu, Weihong Xing, Rongfei Zhou
Summary: Continuous and thin all-silica zeolite CHA membranes were successfully prepared on zirconia/alumina supports using a fluoride-free synthesis approach with lithium hydroxide as a mineralizer. The membrane demonstrated good reproducibility using a uniform and low-viscosity gel synthesis method. The membrane's separation performance in dry and wet mixtures was comprehensively investigated, showing high selectivity and permeance for CO2/CH4 and CO2/N2 mixtures.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Yasuhisa Hasegawa, Chie Abe, Ayumi Ikeda
Summary: In this study, a high-silica chabazite (CHA) type zeolite membrane was prepared on a porous alpha-Al2O3 support tube through secondary growth of seed particles. The dehydration performances of the membrane were classified into three types based on the types of organic solvents used, with different influences on permeation and separation efficiencies discussed. High permeation fluxes and separation factors were observed for certain organic solvents due to preferential water adsorption, while others showed relatively lower performance due to adsorption of the solvents themselves. Adsorption isotherms of water, methanol, ethanol, and 2-propanol were determined to examine the impact of organic solvents on membrane performance.
Article
Engineering, Chemical
Yanmei Li, Shengnan He, Chaojiu Shu, Xinping Li, Bo Liu, Rongfei Zhou, Zhiping Lai
Summary: In this study, high-quality N-2-selective SSZ-13 membranes were successfully prepared on alumina tubes using a novel seeded-gel synthesis method, showing high N-2 permeance and N-2/CH4 selectivity. Ozone calcination had a positive effect on membrane quality, and the seeded-gel synthesis method exhibited good reproducibility.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Zhaogen Zhang, Hongbin Liu, Shilei Yu, Junjing Zhou, Bin Wang, Bo Liu, Rongfei Zhou
Summary: Large-area SSZ-13 membranes were successfully prepared using a secondary growth technique, and their separation performance was found to be superior to most small-area membranes. The effects of operation parameters such as pressure, temperature, feed flow rate, and CO2 concentration on the membrane performance were investigated. Furthermore, a field test using a separation system consisting of four connected single-tube modules demonstrated the capability of purifying biogas to pipeline-grade natural gas.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mide Luo, Zong Lu, Yali Zhao, Yufei Wang, Yanying Wei, Haihui Wang
Summary: In this work, tubular 2D MXene membranes were successfully prepared on commercial porous stainless steel substrates via fast electrophoretic deposition. The prepared membranes showed advantages of simple operation, high membrane assembly efficiency, and ease for scale-up. These tubular MXene membranes exhibited excellent gas separation performance with high hydrogen permeance and selectivity. Importantly, this work provides valuable reference for the development of other 2D material-based membranes for future applications.
Article
Biochemistry & Molecular Biology
Gabriel Gama da Silva Figueiredo, Daishi Takayama, Katsunori Ishii, Mikihiro Nomura, Takamasa Onoki, Takuya Okuno, Hiromasa Tawarayama, Shinji Ishikawa
Summary: Thin pure-silica chabazite (Si-CHA) membranes were successfully synthesized using a secondary growth method on a porous silica substrate, achieving a high CO2 permeance and CO2/CH4 permeance ratio. The CO2 permeance through the Si-CHA membrane on a porous silica substrate was found to be twice as high as that through a membrane synthesized on a porous alumina substrate, despite similar zeolite layer thickness.
Article
Engineering, Chemical
Dong Zou, Chenpei Zhou, Yanmin Gong, Zhaoxiang Zhong, Weihong Xing
Summary: Novel filter-pressing method was employed to fabricate fibrous ceramic fiber membrane tubes, which showed improved gas permeance and mechanical strength. The resulting membrane also exhibited high particle rejection behavior towards dust-laden gas.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Liang Yu, Iliana Kyriazidou, Ming Zhou, Jonas Hedlund
Summary: This study investigates the application of DDR membranes with a thickness of approximately 700 nm in the separation of CO2 and CH4. The experimental results show that these membranes exhibit the highest CO2 permselectivity and CO2 permeability reported in literature. This is attributed to the defect-free and ultra-thin zeolite film in the membrane as well as the open and highly permeable support. The study also designs membrane processes for upgrading biogas to biomethane, which are characterized by low membrane area, methane slip, and power need.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Engineering, Environmental
W. Rahmah, G. T. M. Kadja, M. H. Mahyuddin, A. G. Saputro, H. K. Dipojono, I. G. Wenten
Summary: This study reviews the latest advances in using small-pore zeolite/zeotype membranes for CO2 removal and discusses the prospects of these membranes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Jonas Hedlund, Mojtaba Sinaei Nobandegani, Liang Yu
Summary: The study found that surface barriers in MFI and CHA membranes may be a surface diffusion process with higher activation energy, with other possible mechanisms not ruled out. For pure components at low concentration in MFI zeolite, the barrier is proportional to the product of the molecular weight and heat of desorption; while at high concentration, the barriers of the components become more similar due to interaction effects.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ming Zhou, Liang Yu, Jonas Hedlund
Summary: The study presents three siliceous DDR zeolite ultrathin films with different orientations achieved through homoepitaxial growth, showing record-high performance in separation selectivity and CO2 permeance. The seed nanoparticles grow into mono-dispersed DDR sub-micron crystals and assemble in monolayers to form ultrathin and uniformly oriented films with specific pore diameters, which not only provide high-performance membrane candidates for industrial CO2 separation, but also offer insights for other microporous crystals and membranes in terms of interfacial engineering and pore size and orientation control.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Chemical
Liang Yu, Benjamin Mayne, Mojtaba Sinaei Nobandegani, Triantafyllia Grekou, Jonas Hedlund
Summary: This work evaluates the feasibility of using ultra-thin MFI membranes for the separation of CH4/N2/He mixture. The results show that the membrane has high selectivity towards CH4 and N2, resulting in a helium rich retentate. An optimal (CH4+N2)/He separation factor of 152 is achieved under specific conditions. Therefore, the ultra-thin MFI membranes are promising materials for efficient helium production from natural gas.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Liang Yu, Mojtaba Sinaei Nobandegani, Jonas Hedlund
Summary: The study evaluated single channel tubular zeolite CHA membranes with excellent permeability and selectivity for industrially relevant gas mixtures. The membranes showed low SF6 permeance and high CO2 permeance, exhibiting potential for industrial separation of CO2 from gas mixtures.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Applied
Jie Gong, Fei Tong, Chunyong Zhang, Mojtaba Sinaei Nobandegani, Liang Yu, Lixiong Zhang
Summary: In this study, a biosynthesis route for the preparation of hierarchical pompon-like SAPO-34 was developed using bacterial cellulose aerogel as template and silica source. The obtained hierarchical pompon-like SAPO-34 exhibited a spherical morphology with nanosheets and showed superior CO2 adsorption capacity compared to trigonal SAPO-34 crystals.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Applied
Mojtaba Sinaei Nobandegani, Liang Yu, Jonas Hedlund
Summary: This study experimentally investigated the adsorption and mass transport of CO2 and CH4 in CHA zeolite. Large and well-defined CHA crystals were prepared for adsorption studies, and adsorption isotherms were measured to estimate adsorption parameters. Permeation experiments with a defect-free CHA membrane also showed high selectivity for CO2 and CH4 under specific conditions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Environmental
Mojtaba Sinaei Nobandegani, Liang Yu, Jonas Hedlund
Summary: Zeolite membrane processes showed significantly higher selectivity and permeance compared to polymeric membrane processes for biogas upgrading, resulting in lower cost and electricity consumption, as well as more compact design.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Liang Yu, Nadin Al-Jariry, Toizhan Serikbayeva, Jonas Hedlund
Summary: In this study, ultra-thin zeolite membranes were evaluated for desalination by pervaporation, achieving water fluxes of up to 40 and 51 kg/(m(2)-h) at 90 degrees C for CHA and FAU membranes, respectively.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Applied
Jie Li, Zhenheng Xu, Lixiong Zhang, Liang Yu
Summary: Uniform carbon microspheres with adjustable mesopores and high surface area were successfully prepared using solvent extraction method in a microfluidic device. Colloidal silica played a role as an assistant in this process.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Chemical
Liang Yu, Jonas Hedlund
Summary: Large CHA zeolite membranes were evaluated for CO2/CH4 separation, demonstrating high selectivity and permeability, but concentration polarization remains an issue.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Marta Perez Miana, Joaquin Coronas, Jonas Hedlund, Liang Yu
Summary: Ethylene/ethane separation is a critical process in the chemical industry. Metal-organic frameworks (MOF) have been investigated as promising materials for membrane-based separation. This study analyzes the influence of parameters such as temperature, feed pressure, and feed flowrate on the separation of ethylene/ethane using a thin ZIF-8/alumina disc membrane. The results show that temperature has a significant effect on the separation, with ethylene permeance and selectivity both being enhanced at lower temperatures.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Liang Yu, Iliana Kyriazidou, Ming Zhou, Jonas Hedlund
Summary: This study investigates the application of DDR membranes with a thickness of approximately 700 nm in the separation of CO2 and CH4. The experimental results show that these membranes exhibit the highest CO2 permselectivity and CO2 permeability reported in literature. This is attributed to the defect-free and ultra-thin zeolite film in the membrane as well as the open and highly permeable support. The study also designs membrane processes for upgrading biogas to biomethane, which are characterized by low membrane area, methane slip, and power need.
JOURNAL OF MEMBRANE SCIENCE
(2023)
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)