Article
Engineering, Chemical
Liu Huang, Ziman Xing, Xinyi Zhuang, Jing Wei, Yulei Ma, Bangda Wang, Xia Jiang, Xuezhong He, Liyuan Deng, Zhongde Dai
Summary: This article critically reviews and discusses the research progress of membranes for hydrogen/methane separation, including polymeric membranes, mixed matrix membranes, and carbon molecule sieve membranes. The study finds that polymeric membranes and carbon molecule sieve membranes exhibit outstanding separation properties, while mixed matrix membranes show lower performance. The article also presents the future research directions and perspectives for hydrogen/methane separation membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jialin Lei, Jinhyuk Lim, Minseob Kim, Choong-Shik Yoo
Summary: This study presents well-resolved X-ray diffraction data of H2O in different pressure media, clearly resolving the differences between Ice VII and Ice X and accurately determining the B0 values for both, which can provide new constraints for Giant planetary models.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Multidisciplinary Sciences
Sheng Zhou, Osama Shekhah, Adrian Ramirez, Pengbo Lyu, Edy Abou-Hamad, Jiangtao Jia, Jiantang Li, Prashant M. Bhatt, Zhiyuan Huang, Hao Jiang, Tian Jin, Guillaume Maurin, Jorge Gascon, Mohamed Eddaoudi
Summary: A mixed-linker metal-organic framework (MOF) membrane, Zr-fum(67)-mes(33)-fcu-MOF, with a specific pore aperture shape, has been developed for efficient removal of nitrogen from natural gas while simultaneously removing carbon dioxide. Techno-economic analysis shows that this membrane has the potential to significantly reduce methane purification costs.
Article
Chemistry, Multidisciplinary
Shizhuo Zhang, Jun Yuan, Shuai Wang, Yunfan Li, Yuhang Xu, Dingyue Sun, Feng Liu, Gary J. Cheng
Summary: Researchers have developed a multistage micron/nanocomposite pore membrane using femtosecond laser induction, which significantly expands the range of filterable contaminants and enhances stability. This membrane demonstrates high efficiency in multiphase water filtration and liquid pressure-driven filtration, offering promising advancements in water purification technologies.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Astronomy & Astrophysics
Michal Zoltowski, Francois Lique, Agata Karska, Piotr S. Zuchowski
Summary: Observations with the Herschel telescope show a significant amount of water in young stellar objects, requiring calculation of excitation rate coefficients for water collisions with H2 at high temperatures. These new collisional data will provide further insight into the physical conditions of star- and planet-forming regions, especially with the upcoming launch of the James Webb Space Telescope.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Materials Science, Ceramics
Yosuke Nakamura, Sachiko Matsushita, Akira Nakajima, Toshihiro Isobe
Summary: Carbon-based membranes were synthesized on porous alumina via a hydrothermal method from aqueous glucose solutions. The hydrothermal treatment time and temperature were evaluated to study their effects on the microstructure of the membranes. The obtained carbon membranes were found to be deposited both on the surface and in the interiors of the porous alumina. The carbon membrane prepared at a hydrothermal treatment of 200 degrees C for 5 hours showed few pinholes and consisted of amorphous carbon with hydroxy groups. Gas transmission rate measurements indicated that the membrane had a pore size of approximately 0.3 nm and exhibited high selectivity for various gas mixtures.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Zhongyun Liu, Wulin Qiu, William J. Koros
Summary: This study investigates the structure evolution of CMS membranes during physical aging using a combined dual-mode sorption and transport model, revealing that aging primarily affects diffusion and leads to changes in pore structure and performance. These insights offer strategies for controlling physical aging and tuning the separation performance of CMS membranes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Astronomy & Astrophysics
R. Biswas, K. Giri, L. Gonzalez-Sanchez, F. A. Gianturco, U. Lourderaj, N. Sathyamurthy, A. Veselinova, E. Yurtsever, R. Wester
Summary: In this study, the interaction of the anion C5N- with He and H-2 in the interstellar medium was investigated. Quantum scattering calculations were performed to obtain rotationally inelastic cross-sections and corresponding rate coefficients for collisions with He and H-2. The results showed that the inelastic rate coefficients for collisions with H-2 were the largest.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Bin Zhao, Runfeng Zhou, Chengzhen Sun, Bofeng Bai
Summary: By conducting molecular dynamics simulations, we have studied the PVT properties and diffusion characteristics of H2O/H-2/CO2 mixtures confined in graphite nanoslits. The results indicate that the pressure is influenced by the molar volume and the slit-width, while the diffusion coefficients are affected by the molar volume, the slit-width, and the temperature.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Biochemistry & Molecular Biology
Chong Yang Chuah, Junghyun Lee, Juha Song, Tae-Hyun Bae
Summary: By incorporating different carbon-based fillers into polymer matrices, the CO2 permeability of mixed-matrix carbon molecular sieve membranes can be improved. In this study, 15 wt % YP-50F and 15 wt % GO fillers in the mixed polymer matrix demonstrated superior CO2/N-2 separation performance.
Article
Engineering, Chemical
Tiago Araujo, Marcia Andrade, Gabriel Bernardo, Adelio Mendes
Summary: Carbon molecular sieve membranes (CMSMs) prepared from an ionic liquid regenerated cellulose precursor exhibit remarkable separation performance and stability, achieving high selectivities for different gas mixtures. Post-treatment with propylene has been shown to enhance the aging resistance of CMSMs, preserving their separation performance after exposure to ambient air for over 1 year.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Ceramics
Chaofan Ma, Tingting Zhou, Huimin Yang, Huiyu Su, Xiaoxia Wang, Qirui Wu, Xiang Guo, Dawen Zeng
Summary: In this study, ZnO@ZIF-71@Ag nanorod arrays were synthesized to provide effective adsorption response to H2. The nanorod arrays showed increased selectivity towards H2, and the response to 50 ppm H2 was significantly higher compared to ZnO@ZIF-71 alone. The presence of Ag nanoparticles in the pores of ZIF-71 contributed to the catalytic effect, breaking H2 molecules into highly active atoms.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Tae Hoon Lee, Farhad Moghadam, Jae Gu Jung, Yu Jin Kim, Ji Soo Roh, Seung Yeon Yoo, Byung Kwan Lee, Jin Hee Kim, Ingo Pinnau, Ho Bum Park
Summary: A versatile approach to fabricate hybrid CMS membranes with unique textural properties and tunable ultramicroporosity is proposed in this study. The HCMS membranes exhibit superior gas separation performances compared to conventional polymers and CMS membranes, especially for closely sized gas pairs. This development demonstrates practical feasibility for use in industrial mixed-gas operation conditions.
Article
Engineering, Environmental
Chao Ye, Chen Luo, Wenhui Ji, Yatao Weng, Jianxin Li, Shouliang Yi, Xiaohua Ma
Summary: This study successfully tailored the ultra-microporosity and gas separation properties of polymer and carbon molecular sieve membranes using a bromination/debromination method, providing new insights for the design of high-performance industrial gas separation membranes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Fengyi Li, Weigang Ma, Xing Zhang
Summary: Hydrogen has attracted attention as a potential alternative to fossil fuel due to its renewable and environmentally friendly properties. Accurate estimations of the thermodynamic and thermophysical properties of hydrogen-containing mixtures are essential for efficiently designing hydrogen energy systems. This study introduced methods for calculating these properties and established a technical database covering a wide range of compositions, pressures, and temperatures. A user-friendly software called H2MixThermoDatabase was compiled to facilitate further developments in hydrogen energy systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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)