Article
Engineering, Chemical
Jin Du, Shuwei Liang, Meidi Wang, Yuhan Wang, Tianpei Yi, Zhiming Zhang, Fusheng Pan, Zhongyi Jiang
Summary: Cu-TAPB-COF nanosheets were synthesized and introduced into Pebax®2533 matrix to construct facilitated transport membranes for toluene/n-heptane mixtures. The Cu-TAPB-COF nanosheets provided continuous low mass transfer resistance channels and uniformly distributed facilitated transport sites. The resulting membrane exhibited higher adsorption selectivity and lower swelling degree compared with pure Pebax membrane. It showed high pervaporation separation performance for the toluene/n-heptane mixture.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Majid Pakizeh, Mahdi Karami, Sahar Kooshki, Rasoul Rahimnia
Summary: This study aimed to effectively separate toluene/n-heptane mixtures by preparing a cross-linked polyvinyl alcohol (PVA) membrane and incorporating graphene oxide (GO) into mixed matrix membranes (MMMs). The PVA membrane with a molecular weight of 130,000 showed a permeation flux of 24.8 g/m2h and a separation factor of 5.5. Increasing the GO loading enhanced the total flux, with the PVA-1.5GO sample exhibiting the best performance, with a permeation flux of 30.6 g/m2h and a separation factor of 11.9, leading to a 199% increase in the pervaporation separation index (PSI) compared to pure PVA membrane.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Chemical
Yuming Tu, Hui Yu, Wei He, Zhiyong Zhou, Wei Liu, Fan Zhang, Yixin Qu, Zhongqi Ren
Summary: This study presents a high-efficiency separation method for aromatics/alkanes using novel ionic liquid gel membranes, with optimal membrane preparation achieved through careful control of various parameters. The best flux and separation factor were observed at 25 degrees C, indicating the membrane's good stability even after continuous operation for 30 hours.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Eunji Choi, Sung Jun Hong, Yong-Jae Kim, Seung Eun Choi, Yunkyu Choi, Ji Hoon Kim, Junhyeok Kang, Ohchan Kwon, Kiwon Eum, Byungchan Han, Dae Woo Kim
Summary: The study achieved ultrafast H-2 permeance and enhanced hydrogen selectivity by growing a pore-tuned zeolitic imidazolate framework (ZIF)-8 layer directly on a graphene oxide nanoribbons (GONR)-treated polymer substrate.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Energy & Fuels
Zhongqi Ren, Xiaojia Wu, Hui Yu, Fan Zhang, Shichao Tian, Zhiyong Zhou
Summary: The selective extraction of toluene from toluene/n-heptane mixtures using deep eutectic solvents (DESs) was investigated. The optimal extraction agent was found to be EmimCl:1,3-dimethylurea (2:1). The feasibility of using DESs for toluene separation was confirmed, and the effects of various factors on toluene selectivity were determined. The obtained liquid-liquid equilibrium data were fitted to a non-random two-liquid model.
Article
Chemistry, Multidisciplinary
Eunji Choi, Ji Il Choi, Yong-Jae Kim, Yeong Jae Kim, Kiwon Eum, Yunkyu Choi, Ohchan Kwon, Minsu Kim, Wooyoung Choi, Hyungjoon Ji, Seung Soon Jang, Dae Woo Kim
Summary: In this study, graphene nanoribbons (GNRs) were introduced to enhance the rigidity of zeolitic imidazolate frameworks (ZIFs), achieving high H-2/CO2 separation performance that surpasses the upper bound of polycrystalline MOF membrane performance. The fundamentals of molecular transport through the rigid ZIF-8 framework were revealed using molecular dynamics simulations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Seung Yeon Yoo, Ji Soo Roh, Juyoung Kim, Wooyul Kim, Ho Bum Park, Hyo Won Kim
Summary: This study investigates the gas transport behavior of graphene oxide (GO) and reduced GO (rGO) membranes and discovers their unique gas separation performance. The membranes exhibit high separation factors, particularly in H-2/CO2 separation, due to their nanoporous gas diffusion channels. The results suggest that further modification of GO membranes could enhance their performance in specific separation processes.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Chemical
Niping Ma, Ke Xu, Jianhua Guo, Ning Wei, Junxia Yan
Summary: Molecular dynamics simulations were used to explore the sizes and distributions of nanopore/channels in graphene oxide (GO) membranes and the relationship between GO flakes size and membrane thickness. It was found that the size of GO flakes affects the distribution of nanopore sizes in GO membranes, but does not significantly impact the total nanopore area in membranes with the same thickness. The study also confirmed that the total nanopore area of GO membranes decreases exponentially as the membrane thickness increases. A columnar-array substrate model was developed to create customized GO membranes for specific filtration functions. These findings provide insights into the design of functional membranes for energy and environmental applications, and offer guidance for the practical application of GO membranes in separation and filtration.
Article
Nanoscience & Nanotechnology
Ohchan Kwon, Ju Yeon Kim, Hyungjoon Ji, Wooyoung Choi, Dae Woo Kim
Summary: Graphene oxide nanoribbons (GONR) with unique morphology and functional groups have various applications, but are often discussed solely in the context of graphene nanoribbons. This Perspective highlights the chemical properties and structuring behaviors of GONRs, which can be manipulated for target applications. The comprehensive summary of recent GONR developments and future research perspectives is also provided.
Article
Engineering, Environmental
Lingya Fei, Cheng Chen, Liguo Shen, Yuyao Zhang, Boya Wang, Jiujing Xu, Bisheng Li, Saleem Raza, Hongjun Lin
Summary: A facile approach using graphene oxide (GO) as a 2D nano-surfactant to assist the dispersion and assembly of superhydrophilic amino acid-based Zr-MOF microcrystals into a bulge-structured membrane is reported. The resulting GO/MIP-202(Zr) membrane with 2D/3D hybrid nanochannels and enhanced hydrophilicity showed superior water permeance and antifouling performance, making it promising for water treatment applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Feng Liang, Dongxu Liu, Shurui Dong, Jing Zhao, Xingzhong Cao, Wanqin Jin
Summary: A polyzwitterion membrane was constructed through in situ free radical polymerization of sulfobetaine methacrylate monomer on the surface of graphene oxide. The membrane exhibited a polymer-dominated structure with ultra-high grafting amount of poly(sulfobetaine methacrylate) brushes. Due to the high hydration ability and water affinity of the polyzwitterion brushes, as well as the densified membrane structure, the membrane achieved excellent water/ethanol separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Ceramics
Biswajit Bera, Nandini Das
Summary: The study focuses on the development of carbon-loaded SBA 15 membrane for CO2 separation from different gas mixtures. By modifying the pore structure of SBA 15 with graphitic carbon, the membrane showed improved separation efficiency, with highest CO2/CH4 separation factor achieved at 16.9 and highest CO2/CO separation factor at 32.8. The results demonstrate the potential of the developed SBA 15/C composite membranes for commercial applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Biochemistry & Molecular Biology
S. Soltani, R. Emadi, S. Haghjoo Javanmard, M. Kharaziha, A. Rahmati
Summary: The study developed a novel nanohybrid shear-thinning hydrogel with fast gelation and variable mechanical and biological properties through self-assembly and crosslinking processes. By controlling macromere concentration and host-guest ratio, the rheological and mechanical properties of hydrogels can be modulated, affecting crosslinking density and network structure. The designed nanohybrid hydrogel exhibited excellent durability and biocompatibility based on the specified parameters.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Chemical
Wanru Zhai, Maohuai Wang, Sen Liu, Shengyu Xu, Hao Dong, Lu Wang, Shuxian Wei, Zhaojie Wang, Siyuan Liu, Xiaoqing Lu
Summary: Based on 2D-CAP, CAP-1S/CAP-1P monolayers were designed for H2 purification. MD and DFT approaches were used to investigate the performance and separation mechanisms of CAP-1S/CAP-1P membranes. Results showed that CAP-1S/CAP-1P membranes exhibited ultrahigh H2 permeances and complete selectivities. The study highlighted the potential of CAP-1P as a promising H2 separation membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
E. F. Elsiena Kuiper, Sarah M. Prophet, Christian Schlieker
Summary: This study summarizes the assembly process of the nuclear pore complex (NPC) and the defects related to human diseases, emphasizing the need for controlled condensation of phenylalanine-glycine repeat nucleoporins during NPC assembly to prevent aberrant condensation, aggregation, or amyloid formation. Defects in this process are associated with neurological disorders.
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)