Article
Engineering, Environmental
Youngkun Chung, Daeseon Park, Hyojeon Kim, Seung-Eun Nam, Seoktae Kang
Summary: This study demonstrates a novel method to prepare ceramic nanofiltration membranes with tunable molecular weight cut-off by packing nanoparticles into existing membrane pores. The results show a high accuracy in predicting MWCO using curve fitting model with variously sized nanoparticles.
Article
Nanoscience & Nanotechnology
Yao-Wei Hong, Livy Laysandra, Yu-Cheng Chiu, Dun-Yen Kang
Summary: Membrane gas separation using innovative self-healing amphiphilic copolymer membranes shows improved gas separation performance and selectivity. These copolymers are designed by strategically incorporating functional segments, and their self-healing properties are achieved through hydrogen bonding. Vacuum-assisted self-healing method successfully restores the gas permeability and selectivity of the copolymer membranes after damage.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Pulak Sarkar, Tapashi Sarkar, Harwinder Singh, Bhaumik Sutariya, Santanu Ray, Amitava Das, Sumit Kumar Pramanik, Santanu Karan
Summary: This study reports the fabrication of carbo-cationic microporous poly(triaminoguanidinium-amide) nanofilm composite membranes with ultra-low molecular weight cut-off (MWCO). The membranes exhibit high water permeance, tunable salt rejection, and high ion selectivity. These ultra-low MWCO membranes have various potential applications in antibiotic removal, desalination, wastewater treatment, and industrial separation problems concerning small neutral solutes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
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
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
Chemistry, Physical
Jing Zhao, Di Song, Jing Jia, Ning Wang, Ke Liu, Tingting Zuo, Quantong Che
Summary: In this research, multilayered membranes were constructed using the vacuum assisted flocculation technique and exhibited high and stable proton conductivity at subzero temperatures.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Amir Azinfar, Sven Neuber, Marie Vancova, Jan Sterba, Vitezslav Stranak, Christiane A. Helm
Summary: The study investigated the self-patterning of polyelectrolyte multilayers consisting of PDADMA and PSSshort, showing that as more bilayers are added, the surface structures evolve into stripes and circular domains, with the average distance between them monotonously increasing with film thickness. The effect of exposure to vacuum on film thinning and domain distance was found to be weaker for PSSshort-terminated films compared to PDADMA-terminated films.
Article
Engineering, Environmental
M. Fernandez-Marquez, R. Pla, A. S. Oliveira, J. A. Baeza, L. Calvo, N. Alonso-Morales, M. A. Gilarranz
Summary: This study modified graphene oxide (GO) membranes on Nylon support through UV-assisted reduction to control their behavior in filtering water containing organic pollutants. The irradiation process led to structural changes of the membranes, resulting in smaller pores and increased rejection of solutes while maintaining good water permeability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Mitra Bahrami Eynolghasi, Toraj Mohammadi, Maryam Ahmadzadeh Tofighy
Summary: For the first time, hydrophobic carbon nanotubes were used to fabricate polystyrene/CNTs mixed matrix membranes for vacuum membrane distillation application. The membranes exhibited increased porosity, average pore size, and improved mechanical properties compared to neat polystyrene membranes. The hydrophobicity and unique physicochemical properties of cyclohexanol-based CNTs improved the performance of the membranes in VMD application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Mohammad Zeyghami, Mohammad Taghizadeh Sarvestani
Summary: The main objective of net pay determination is to exclude non-reservoir intervals so that better results are obtained in reservoir characterization, hydrocarbon in-place calculations, and dynamic flow simulation. This study presents different methods for net pay determination, their strengths, limitations, and input data, along with a new procedure. The proposed methodology considers both rock and fluid properties and validates the results.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Fei Wang, Xinke Zhang, Shuang Li, Jiaye Su
Summary: This study investigates the transport of water molecules through two disjoint carbon nanotubes with a nanogap using molecular dynamics simulations. The results show that temperature and nanogap length significantly affect the water flow, which is important for the design of nanoscale devices.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Young Hee Yoon, Ryan P. Lively
Summary: Carbon molecular sieve (CMS) materials are a promising option for scalable and high-performance reverse osmosis membranes due to their exceptional stability. This study investigated the transport behavior of organic compounds and water in poly(vinylidene fluoride)(PVDF)-derived CMS (PVDF-CMS). The results showed that the polarity and molecular size of the penetrants affect the transport rates and selectivity. CMS membranes demonstrate organic-permeable separation properties in water/organic separations.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Urology & Nephrology
Seon-Ho Ahn, Mi Mi Ko, Ju Hung Song, Jong Hwan Jung
Summary: The study aimed to evaluate the long-term effects of MCO membrane on larger middle molecules in end-stage renal disease patients. Results showed that using MCO dialyzer significantly increased solute clearance of larger middle molecules without significant albumin loss, as well as suppressed the increase in plasma sclerostin level, compared to high-flux dialyzers.
KIDNEY RESEARCH AND CLINICAL PRACTICE
(2021)
Article
Agriculture, Dairy & Animal Science
Melanie Sergius-Ronot, Shyam Suwal, Sara Shama, Julien Chamberland, Sharon Unger, Deborah L. O'Connor, Yves Pouliot, Alain Doyen
Summary: This study aimed to optimize protein intake for low birth weight infants and proposed the use of a 50 kDa UF membrane for the preparation of human milk protein concentrate (HMPC). However, the results showed that the protein content of HMPC generated by both membranes was similar. The 50 kDa membrane had a higher permeate flux during the diafiltration sequence, but it was still insufficient to increase the protein purity of HMPC.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Engineering, Chemical
Yuchen Du, Biplob Kumar Pramanik, Yang Zhang, Veeriah Jegatheesan
Summary: This study investigated the impacts of polyether sulfone (PES) substrate with different molecular weight cut-offs (MWCO) on the performance of thin-film composite (TFC) nanofiltration membranes. The study found that increasing the MWCO of the substrate resulted in changes in the TFC membrane properties, including thickness, surface structure, and permeate flux.
Article
Engineering, Chemical
Weng Fu, Julius Motuzas, David Wang, Christelle Yacou, Anne Julbe, James Vaughan, Joao C. Diniz da Costa
Summary: A novel membrane macropore storage mechanism induces fast salt crystallization in mesoporous top-layers, providing ideal conditions for crystal nucleation and growth during membrane pervaporation. This technology could potentially be considered for unlocking and processing strategic global minerals from brines.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Rijia Lin, Xuemei Li, Andraz Krajnc, Zhiheng Li, Mengran Li, Wupeng Wang, Linzhou Zhuang, Simon Smart, Zhonghua Zhu, Dominique Appadoo, Jeffrey R. Harmer, Zhiliang Wang, Ana Guilherme Buzanich, Sebastian Beyer, Lianzhou Wang, Gregor Mali, Thomas D. Bennett, Vicki Chen, Jingwei Hou
Summary: The research introduces a novel method to fabricate a bimetallic MOF glass, demonstrating significantly enhanced catalytic performance by incorporating Fe nodes into the Co-based framework through a melt-quenching process. The technique, combined with mechanochemical synthesis, provides significant opportunities for catalytic device assembly on flexible substrates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Environmental Sciences
Nur Hafizah Ab Hamid, David K. Wang, Simon Smart, Liu Ye
Summary: Forward osmosis membrane bioreactors (FOMBRs) are gaining attention for their potential to produce high effluent quality and better flux stability against fouling. This study found that a hybrid cleaning strategy involving physical and free nitrous acid (FNA) cleanings can effectively recover water flux and slow down fouling deposition during long-term FOMBR operation. The results suggest that FNA solution has the potential to not only recover membrane performance, but also to act as a strategy to mitigate fouling deposition.
Article
Engineering, Chemical
Jing-Yi Li, David K. Wang, Yu-Ting Lin, Ming-Yen Wey, Hui-Hsin Tseng
Summary: Dual organosilica membranes were synthesized and the effects of different chemical ratios on membrane performance were investigated. The reaction mechanism behind CO2 capture using the membranes at ambient conditions was studied. It was found that BTESE has high CO2 affinity and glycidyl POSS contributes to dimensional and mechanical stability of the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Rijia Lin, Yuqi Yao, Muhammad Yazid Bin Zulkifli, Xuemei Li, Shuai Gao, Wengang Huang, Simon Smart, Miaoqiang Lyu, Lianzhou Wang, Vicki Chen, Jingwei Hou
Summary: This study presents a simple, scalable mechanochemical technique for producing metal-organic framework coatings on various substrates. The mechanisms ensuring the stability of the coatings are revealed, and the coatings facilitate electrocatalysis application on conductive substrates.
Article
Chemistry, Multidisciplinary
Wen-Hsiung Lai, David K. Wang, Hui-Hsin Tseng, Ming-Yen Wey
Summary: Highly selective poly(S-IL) hollow fiber membranes were developed by synthesizing and coating a styrene-based IL monomer, achieving an increased CO2/N-2 selectivity of 29 and a final CO2 permeance of 3.6 GPU through optimization of polymerization conditions. Testing at higher temperatures led to increased gas permeance and selectivity, with a peak CO2/N-2 selectivity of 35 at 50 degrees C.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Engineering, Environmental
Jia Ding, Hashim Jalil Khan, Gholamreza Vahedi Sarrigani, Paul Fitzgerald, Amirali Ebrahimi Ghadi, Olivier Lefebvre, Chao Meng, Mohd Hazarel Zairy Mohd Harun, Yong K. Lu, Ali Abbas, Alejandro Montoya, Dianne Wiley, David K. Wang
Summary: In this study, highly dispersed CoSi catalysts with improved accessibility of active sites were successfully synthesized using a facile sol-gel derived soft-templating technique. The prepared catalysts showed excellent catalytic performance in the oxidation of dyes and antibiotics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Jing-Yi Li, Yu-Ting Lin, David K. Wang, Hui-Hsin Tseng, Ming-Yen Wey
Summary: This study proposes the usage of dual hybrid organosilica for discussing the influence of thermal-driven chain stitching on the organosilica membrane structure. The research focuses on the influence of gas thermal diffusivity on the hybrid organosilica membrane for separating different gases. The results show that the fabricated organosilica membrane exhibits good performance in gas separation under optimal conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Studies
Andrew Pascale, Shoibal Chakravarty, Paul Lant, Simon Smart, Chris Greig
Summary: Traditional discussions about energy, CO2 emissions, and human development often overlook the inequality in domestic energy and CO2 emissions. This study reveals these inequalities in India and examines the impact on both welfare and CO2 emissions as India transitions away from energy poverty. The results suggest that addressing welfare issues related to energy use, such as indoor air pollution, can be aided by a transition to modern energy carriers without a significant increase in CO2 emissions. However, the wealth creation required for a modern energy transition will lead to increased consumption, supported by carbon-intensive electricity and materials, which represents the fastest-growing source of CO2 emissions. Consequently, a coherent strategy is necessary to tackle energy poverty, wealth creation, and reduce emissions intensity in sectors like transportation.
ENERGY RESEARCH & SOCIAL SCIENCE
(2022)
Article
Energy & Fuels
C. McMahon, I. Cameron, H. Zughbi, M. Biasutti, A. Halstead, S. Smart
Summary: Integrated steelplants are facing challenges in reusing byproducts in a circular economy, especially those with complex physical or chemical characteristics. A case study explores the optimal utilization of biochar and activated carbon in the blast furnace, as well as the reuse of basic oxygen furnace (BOF) filter cake and blast furnace flue dust. The study reveals that biochar has high utilization rates, while the reuse of activated carbon and BOF filter cake is limited by their zinc content.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Engineering, Chemical
Gianni Olguin, Christelle Yacou, Julius Motuzas, Maik Butterling, Wilhelm A. Meulenberg, Simon Smart, Joao C. Diniz da Costa
Summary: This work investigates the in-situ structural characterization of silica derived thin film membranes using positron annihilation lifetime spectroscopy (PALS). The study found that the pore size distribution depth profile and coating layers had an impact on the pore size and gas separation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Rasyidah Alrozi, Nor Aida Zubir, Noor Fitrah Abu Bakar, Bradley P. Ladewig, Julius Motuzas, Noor Hana Hanif Abu Bakar, David K. Wang, Joao C. Diniz da Costa
Summary: The substitution of different types of B-site metal cations in the perovskite structure had a significant effect on the catalytic reactivity of the resulting catalysts. In this study, mixed oxides containing B-site substituted CaMFeO3 (M = Cu, Mo, and Co) perovskite catalysts were synthesized, and their catalytic reactivity was investigated in the oxidative degradation of acid orange II (AOII) dye using a Fenton-like reaction. The results showed that CaCuFeO3 exhibited the highest degradation efficiency (97%), followed by CaMoFeO3 (90%), CaFeO3 (64%), and CaCoFeO3 (40%). The enhanced catalytic activity of CaCuFeO3 was attributed to the high reducibility of copper/iron ions within the B-site structure, which facilitated fast redox cycling of the active sites during catalysis.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Multidisciplinary
Bo-Kai Wang, David K. Wang, Wen-Che Hou
Summary: This study systematically evaluated the photocatalysis of graphitic carbon nitride (g-C3N4) modified with carbon-based nanomaterials (CBNs). The results showed that the type and loading amount of the CBNs had a significant impact on the photocatalytic activity of g-C3N4. The findings highlight the importance of CBNs in achieving highly reactive g-C3N4 photocatalysts.
ENVIRONMENTAL SCIENCE-NANO
(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)