Article
Polymer Science
Hassan Alhweij, Emma Anna Carolina Emanuelsson, Salman Shahid, Jannis Wenk
Summary: This study introduces a new strategy to tune the transport properties of cross-linked polyaniline (PANI) membranes for organic solvent nanofiltration (OSN) by incorporating different molecular weight organic acids. The results show that the membranes are stable during long-term dynamic crossflow filtration tests and exhibit good permeance and rejection properties. Compared to commercial polyimide membranes, the PANI membranes prepared using this technique are more stable in N,N-dimethylformamide (DMF). This work has significant importance in various industries such as food, pharmaceutical, and petrochemical.
Article
Engineering, Chemical
Guangqing Ma, Song Zhao, Ying Wang, Zhi Wang, Jixiao Wang
Summary: Conjugated polyaniline derivative membranes were designed for nanofiltration and organic-solvent nanofiltration, showing efficient separation and recovery of dyes and solvents. The membranes exhibited potential application prospects with the co-effects of size sieving and charge repulsion.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Farzaneh Radmanesh, Gerrald Bargeman, Nieck E. Benes
Summary: In this study, cyclomatrix polyphosphazene membranes were synthesized through interfacial polymerization on alumina or polyacrylonitrile supports. The potential of alumina-supported thin film composite membranes as organic solvent nanofiltration membranes was confirmed. The resulting membranes showed high rejection rates for methylene blue in various solvents. A polyacrylonitrile-supported membrane was also prepared, showing higher permeance and lower rejection due to the presence of pinholes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
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
Multidisciplinary Sciences
Stefan Chisca, Valentina-Elena Musteata, Wen Zhang, Serhii Vasylevskyi, Gheorghe Falca, Edy Abou-Hamad, Abdul-Hamid Emwas, Mustafa Altunkaya, Suzana P. Nunes
Summary: This study presents a versatile strategy for fabricating polytriazole membranes with subnanometer channels and 10-nanometer-thin selective layers, which can be tuned for different applications. These membranes exhibit excellent selectivity and are capable of efficiently separating low-carbon hydrocarbon components.
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
Jing Ji, Saeed Mazinani, Ejaz Ahmed, Y. M. John Chew, Davide Mattia
Summary: Hydrophobic and chemically resistant nanofiltration (NF) polymeric membranes were fabricated with the incorporation of 2D siloxene into PVDF, achieving improved performance compared to commercial NF membranes. These membranes expand the potential applications of nanofiltration to processes requiring stable, chemically resistant, and hydrophobic characteristics.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Mohamed H. Abdellah, Claudia Oviedo, Gyorgy Szekely
Summary: This study investigates the effect of the degree of acetylation (DoA) on the performance of cellulose acetate (CA) membranes. It is found that decreasing the DoA improves the solvent resistance and hydrophilicity of the membranes, while maintaining excellent thermal stability. The molecular weight cut-off of the membranes can be fine-tuned by adjusting the DoA.
JOURNAL OF MEMBRANE SCIENCE
(2023)
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
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
Chemistry, Physical
Zhaocai He, Gonggang Liu, Mengjie Huang, Chongqing Wang, Jinbo Hu, Yanran Li
Summary: Organic solvent nanofiltration (OSN) is an emerging membrane separation technology that faces the challenge of achieving high permeability and selectivity simultaneously. A composite membrane consisting of highly entangled polymeric nanowires and ultrathin graphene oxide (GO) layers was developed, which exhibited excellent stability in solvents and allowed high flux and rejection for small molecules.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Fadhilah Alduraiei, Priyanka Manchanda, Bruno Pulido, Gyorgy Szekely, Suzana P. Nunes
Summary: The study demonstrates that incorporating fluorinated monomers into polyamide membranes can significantly enhance their permeability and selectivity for nonpolar solvents, improving their hydrophobicity and permeance. By preparing thin-film composite membranes through reactions in organic and aqueous phases, high-performance membranes suitable for use in petroleum refining and pharmaceutical purification can be obtained.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Tim Croes, Abhishek Dutta, Robin De Bie, Korneel Van Aelst, Bert Sels, Bart Van der Bruggen
Summary: Organic solvent nanofiltration membranes were used to fractionate birch derived RCF lignin oil. The silicon-based membranes from Borsig and Evonik showed the best performance in separating lignin into different functional fractions, with monomer separation factors up to 7.4 and a permeate fraction with 88% phenolic monomer purity. Furthermore, batch diafiltration and two-stage filtration increased the separation factor to 25.4 and the monomer purity of the permeate to 95%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Rifan Hardian, Abdulaziz Alammar, Tibor Holtzl, Gyorgy Szekely
Summary: Membrane technologies have shown promise as an energy-efficient alternative for separation processes in various industries. This study focuses on the fabrication of oil and solvent-resistant nanofiltration membranes using cellulose and chitosan blends. The membranes exhibited outstanding separation performance and chemical stability, even in harsh solvents. By adjusting the cellulose-chitosan ratio, the molecular sieving properties of the membranes could be fine-tuned. The membranes also showed biodegradation potential, contributing to the sustainable lifecycle of membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Polymer Science
Gui Min Shi, Yingnan Feng, Bofan Li, Hui Min Tham, Juin-Yih Lai, Tai-Shung Chun
Summary: Organic solvent nanofiltration (OSN) has emerged as an energy-efficient alternative in the field of solvent separations, with the recent advances in fabrication of high-grade polymeric membranes continuously pushing the boundaries of separation performance.
PROGRESS IN POLYMER SCIENCE
(2021)
Article
Engineering, Chemical
Ida Francesca Amura, Salman Shahid, Adem Sarihan, Junjie Shen, Darrell Alec Patterson, Emma Anna Carolina Emanuelsson
Summary: This study introduces a method for preparing self-doped sulfonated polyaniline membranes, addressing fouling and stability issues with traditional PANI membranes through chemical cross-linking. Results demonstrate that S-PANI-GA membranes have superior filtration performance in water compared to conventional PANI membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
Hassan Alhweij, Ida Amura, Jannis Wenk, Emma Anna Carolina Emanuelsson, Salman Shahid
Summary: The S-PANI ultrafiltration membranes showed improved chlorine resistance and antifouling properties compared to PANI membranes and commercial PES membranes. Chemical cleaning with sodium hypochlorite restored the transport properties of the membranes to their initial state. Overall, the developed S-PANI membranes have high potential for a range of UF membrane applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Energy & Fuels
K. V. K. Boodhoo, M. C. Flickinger, J. M. Woodley, E. A. C. Emanuelsson
Summary: Bioprocessing is an ideal choice for sustainable processing. By developing intensified bioprocesses and utilizing advanced technologies such as biocatalyst engineering and high density cell immobilization, the productivity and competitiveness of bioprocessing can be enhanced. However, there are still challenges to overcome in bioprocess intensification.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Engineering, Chemical
Tianting Pang, Frank Marken, Dengsong Zhang, Junjie Shen
Summary: This study reveals for the first time the impact of dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC) on fluoride removal by membrane capacitive deionization (MCDI). The results show that DIC species decrease fluoride removal, while DOC has an insignificant impact at a moderate concentration.
Article
Engineering, Chemical
Tianting Pang, Junjie Shen
Summary: In this study, a comprehensive review of capacitive deionization (CDI) research was conducted using scientometric analysis. The analysis covered various aspects such as publication output, international collaboration, research topic evolution, and future research recommendations. The findings provide authors with an overall understanding of the research status and emerging trends in CDI.
Article
Polymer Science
Hassan Alhweij, Emma Anna Carolina Emanuelsson, Salman Shahid, Jannis Wenk
Summary: This study introduces a new strategy to tune the transport properties of cross-linked polyaniline (PANI) membranes for organic solvent nanofiltration (OSN) by incorporating different molecular weight organic acids. The results show that the membranes are stable during long-term dynamic crossflow filtration tests and exhibit good permeance and rejection properties. Compared to commercial polyimide membranes, the PANI membranes prepared using this technique are more stable in N,N-dimethylformamide (DMF). This work has significant importance in various industries such as food, pharmaceutical, and petrochemical.
Review
Engineering, Chemical
Shuqian Chai, Jiarui Xi, Ling Chen, Wei He, Junjie Shen, Hui Gong
Summary: This paper provides an overview of the current status of selective ion removal in capacitive deionization (CDI) and discusses the prospects of CDI in desalination, heavy metal removal and recovery, and other fields. The insights from this review will inform the implementation of CDI technology.
Article
Chemistry, Physical
Agnieszka K. Holda, Semali Perera, Emma A. Emanuelsson Patterson
Summary: Polysulfone-based nanofiltration membranes containing homocoupled conjugated microporous poly(phenylene butadiynylene) (HCMP) were prepared via phase inversion. The membrane containing HCMP showed higher cumulative adsorptive-photocatalytic effect compared to the reference membrane. It exhibited good Rhodamine B rejection and permeance performance, and demonstrated stability in long-term activity testing.
CATALYSIS COMMUNICATIONS
(2022)
Article
Biotechnology & Applied Microbiology
Gavino Puggioni, Nurul Hainiza Abd-Razak, Ida Francesca Amura, Michael R. Bird, Emma A. C. Emanuelsson, Salman Shahid
Summary: This article presents a straightforward method for preparing highly hydrophilic ultrafiltration polyaniline poly(2-acrylamido-2-methyl-1-propanesulfonic acid) membranes (PANI PAMPSA) and describes their application in the fractionation of phytosterols and proteins from fruit juice. The results show that the PANI PAMPSA membrane has comparable protein separation efficiency to a commercial membrane but performs slightly worse in the rejection of phytosterols. However, the PANI PAMPSA membrane is more susceptible to fouling, although it can achieve a good cleaning efficiency after multiple fouling-cleaning cycles.
FOOD AND BIOPRODUCTS PROCESSING
(2022)
Article
Green & Sustainable Science & Technology
Sankhya Ramanan, Godfrey Mkongo, Qian Zhang, Haibao Wen, Felix Mtalo, Junjie Shen
Summary: Animal bone char has been widely used as an adsorbent for removing fluoride from drinking water, particularly in developing countries, due to its low cost and ease of use. However, the environmental impact of its production has not been fully investigated, with transport and charring gas emissions identified as major contributors to climate change and terrestrial acidification. Despite the environmental cost of producing bone char exceeding its local market price, the sustainability of this technology remains uncertain.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Frank Marken, Junjie Shen, Tianting Pang, Dengsong Zhang, Davide Mattia
Summary: This study establishes an electrochemical impedance-based method to detect and investigate the electrochemical properties of activated carbon fibres (ACFs) without destroying their original weaving patterns. The weaving pattern plays a role in the electrochemical properties and desalination performance of ACFs, with knitted ACFs consuming less energy for removing the same amount of NaCl compared to woven ACFs.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Zhongkai Li, Tianting Pang, Junjie Shen, Philip J. Fletcher, Klaus Mathwig, Frank Marken
Summary: This article proposes a new circuit design that achieves a net desalination effect using alternating driving voltage and a combination of anionic and cationic diodes. Experimental results show that this ionic diode desalination system can work with only two carbon mat driver electrodes, but performance needs improvement at higher ionic strengths.
MICRO AND NANO ENGINEERING
(2022)
Article
Engineering, Environmental
Hassan Alhweij, Emma Anna Carolina Emanuelsson, Salman Shahid, Jannis Wenk
Summary: This study compares the performance of newly developed S-PANI NF membranes, commercial membranes, and conventional treatment methods for NOM removal from water. The results show that S-PANI NF membranes perform best in surface and seawater, while conventional treatment works better for landfill leachate. In addition, S-PANI NF membranes have better performance in long-term fouling conditions, making them promising for high-fouling applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)