Article
Engineering, Chemical
Eric Ziemann, Arindam Kumar Das, Paramita Manna, Revital Sharon-Gojman, Michal Sela-Adler, Charles Linder, Roni Kasher, Roy Bernstein
Summary: This study presents a facile method to fabricate crosslinked polyethersulfone membranes with remarkable stability in organic solvents. The performance of the membranes can be easily adjusted by controlling the polymer fraction. The weeklong filtration experiment highlights the excellent stability of the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Chao Han, Huan Liu, Yan Wang
Summary: This study presents a green process for the preparation of polymeric-based thin film composite (TFC) membrane with high permeance and superior solvent resistance in organic solvent nanofiltration (OSN) applications. Intrinsic insoluble polyimide (PI) nanofiber substrates were obtained by electrospinning of poly (amic acid) and subsequent thermal imidization. The optimized monomers contribute to a low-temperature imidization of PI nanofiber substrate. The resulting TFC OSN membrane showed high solvent permeance and rejection, along with good long-term stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Jiahui Hu, Sushil Kumar, Rifan Hardian, Cong Yang, Gyorgy Szekely
Summary: In this study, polyamide and polyester thin-film composites (TFCs) and covalent organic frameworks (COFs) were fabricated as selective layers on a polyimide aerogel support for organic solvent nanofiltration (OSN) membranes. The polyimide aerogel support exhibited high stability and porosity, enabling high solvent flux. Both the experimental and predicted molecular weight cutoff (MWCO) values were obtained for the COFs and polyester TFC membranes. The operating temperature had minimal effect on the OSN performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Xinzhu Zhang, Tingyu Li, Zhi Wang, Jixiao Wang, Song Zhao
Summary: To overcome the challenges of swelling and dissolution of substrates in organic solvents, a reverse flexible-chain binding interfacial polymerization (rFB-IP) technique was proposed to fabricate solvent-resistant nanofiltration (SRNF) composite membranes using polytetrafluoroethylene (PTFE) substrates. The as-prepared rPA-PDMS/mPTFE composite membrane showed excellent stability and separation efficiency in polar aprotic solvents, making it a promising candidate for SRNF applications.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Yvonne Thiermeyer, Stefanie Blumenschein, Mirko Skiborowski
Summary: The study provides insights into the solvent-dependent rejection phenomena and the impact of solvent-membrane interactions on transport phenomena in organic solvent nanofiltration. By conducting comprehensive experimental investigations on polyimide membranes, solutes, and solvents, the results contribute to a better understanding of mass transfer through OSN membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Ze-Xian Low, Junjie Shen
Summary: Through static aging experiments and cross-flow aging protocols, the stability of four commercial OSN membranes in different organic solvents was studied. The results showed that acetonitrile had the most significant effect on the membranes, and polyimide-based membranes exhibited signs of aging with increasing temperature. The new cross-flow aging protocol can facilitate rapid screening of OSN membranes for industrial use.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Wen-Hai Zhang, Ming-Jie Yin, Qiang Zhao, Cheng-Gang Jin, Naixin Wang, Shulan Ji, Cody L. Ritt, Menachem Elimelech, Quan-Fu An
Summary: The study presents a highly stable and ultrapermeable zeolitic imidazolate framework-8 (ZIF-8)-nanocrystal-hybridized graphene oxide membrane prepared using ice templating and in situ crystallization of ZIF-8. The selective growth of ZIF-8 in microporous defects enhances water permeability and mechanical integrity, leading to a 30-fold increase in permeability compared to graphene oxide membranes (GOms). The technique also improves permselectivity and offers potential for developing next-generation nanofiltration membranes.
NATURE NANOTECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Feng Gao, Honggang Chang, Jinjin Li, Ruifeng Wang, Yanlong Gu
Summary: Contrary to the risks associated with traditional polar aprotic solvents, water has been considered an ideal alternative in organic synthesis due to its abundant supply and environmental compatibility. However, challenges such as low solubility of organic compounds and instability of water-incompatible catalysts hinder its practical use as a reaction medium. This review summarizes strategies to address these issues, including the use of task-specific surfactant-based catalysts and water-containing cosolvents, which offer a promising future for replacing hazardous polar aprotic solvents with water. Additionally, innovative technologies like biomimetic catalysis and continuous-flow reactions may pave the way for large-scale adoption of water as a solvent.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Arpita Sahoo, Manas Ranjan Puhan, Dinesh Bahadursing Vasave, Nitin G. Borle, Bhaumik Sutariya, Santanu Karan
Summary: Designing high-permeance nanofiltration (NF) and reverse osmosis (RO) membranes without compromising selectivity is important for efficient separation. Existing membranes have limitations for organic solvent filtration, but solvent treatment can enhance desalination and molecular separation without compromising rejection. This expands the applications of NF and RO membranes in aqueous mixtures of organic solvents.
Article
Engineering, Chemical
Maarten Bastin, Kristof Bogaert, Elke Dom, Rhea Verbeke, Ivo F. J. Vankelecom
Summary: This article introduces a new epoxy curing method that can be used for membrane preparation and has been successfully applied in solvent-tolerant nanofiltration experiments. UF membranes with a retention for bovine serum albumin of -40% and a water permeance of 171 L m-2 h-1 bar-1 were prepared, and selective top layers were synthesized on these supports layers via interfacial polymerization or interfacial initiation of polymerization. The testing results showed that these membranes have excellent separation performance in solvent-water mixtures.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Anqi Wang, Wei Chen, Hang Xu, Zongli Xie, Xiaoying Zheng, Mingxiang Liu, Yueting Wang, Nannan Geng, Xiaoying Mu, Mingmei Ding
Summary: This research successfully constructed a heterostructured dual-functional zone in a lamellar membrane by incorporating MoS2 quantum dots into graphene oxide, which can simultaneously absorb and discharge different solvents, thereby improving the efficiency of solvent transport and demonstrating excellent stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Siyan Wang, Zhenggong Wang, Shouwen Zhu, Shuqi Liu, Feng Zhang, Jian Jin
Summary: Membranes with high stability and selectivity are needed for efficient chemical separations in harsh solvents. In this study, a thin-film composite polyamide membrane for organic solvent nanofiltration (OSN) was fabricated using an adamantane diamine as a building block. The bulky adamantane structure inhibited polymer chain packing, creating interconnected micropores in the polyamide layer. The membrane exhibited high methanol permeance and retention of organic dye molecules, as well as stability in different organic solvents. This approach improves membrane permeability and solvent resistance without compromising selectivity.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kayode Hassan Lasisi, Weihao Yao, Qiang Xue, Qin Liu, Kaisong Zhang
Summary: The novel acid-resistant nanofiltration membrane prepared in this study demonstrated improved flux and excellent acid stability, with high rejection of different model salt solutions, making it suitable for acidic wastewater treatment. Various acid stability tests showed that the membrane's flux increased slightly under extreme conditions, with a slight decline in rejection levels.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Mengchen Zhang, Peishan Li, Mingjie Li, Wenbiao Zheng, Gaoyi Xie, Xiaolong Xu, Changyu Liu, Jianbo Jia
Summary: A simple method was reported to control the assembly behavior of laminar GO membranes in organic solvents by altering GO-solvent interactions. Experimental and theoretical studies showed that the dispersion properties of GO nanosheets in different organic solvents determined their assembly behaviors. GO membranes built up with good solvents assistant assembly exhibited competitive organic solvent nanofiltration performances.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Qin Liu, Sheng Xu, Shu Xiong, Ming Yi, Yan Wang
Summary: The study successfully developed a coordination-crosslinked polyimide substrate, enhancing membrane solvent resistance and permeance, achieving breakthroughs in the application of OSN membranes.
CHEMICAL ENGINEERING JOURNAL
(2022)
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)