Article
Multidisciplinary Sciences
Changwei Zhao, Yanjun Zhang, Yuewen Jia, Bojun Li, Wenjing Tang, Chuning Shang, Rui Mo, Pei Li, Shaomin Liu, Sui Zhang
Summary: By controlling the spatial and temporal aspects of interfacial polymerization, a nanofiltration membrane with fast permeation and high Cl-/SO42- selectivity has been constructed. This membrane demonstrates ultra-permeability and excellent ion-ion separation, making it ideal for sustainable water treatment applications such as water purification and desalination.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Zhen Wang, Xinda You, Chao Yang, Wenwen Li, Yafei Li, Ya Li, Jianliang Shen, Runnan Zhang, Yanlei Su, Zhongyi Jiang
Summary: The study proposed a method of using charged monomers for interfacial polymerization to successfully prepare positively charged polyamide nanofiltration membranes. By selecting branched amino macromolecules with different charged group numbers and molecular sizes as monomers, a tunable membrane chargeability was achieved, showing excellent rejection to multivalent cations and high pure water permeance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Manas Ranjan Puhan, Bhaumik Sutariya, Santanu Karan
Summary: This study revisited the alkali hydrolysis post-treatment of a polyamide nanofiltration membrane. It was found that the post-treatment increased the pure water permeance without affecting solute rejection, possibly due to the physical restructuring of the polyamide layer or the restructuring of the support layer and interface.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Yawei Gao, Kunpeng Wang, Xiao-mao Wang, Xia Huang
Summary: In this study, a novel method was developed to fabricate nanofiltration membranes (NFMs) with small pore dimensions coupled with a high, net-negative charge density. The membranes exhibited a low molecular cutoff, reduced rejection of MgCl2, and competitive water permeance, making them ideal for the efficient removal of micropollutants while preserving mineral ions in the production of safe, quality drinking water. The significance of residual amine groups and the modification environment in membrane fabrication was unveiled, providing insights into the electrostatic effects constrained by size exclusion.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yongxuan Shi, Zheng Wang, Zhaohuan Mai, Qin Shen, Qiangqiang Song, Wenming Fu, Shang Xiang, Shang Fang, Pengfei Zhang, Yu-Hsuan Chiao, Kecheng Guan, Hideto Matsuyama
Summary: This study investigates the formation mechanism of crumpled polyamide (PA) nanostructures and the effects of a particulate polydopamine (PDA) interlayer on the interfacial polymerization (IP) process and separation performance of thin-film composite (TFC) nanofiltration (NF) membranes. The results show that the interlayer-mediated TFC NF membrane with crumpled nanostructures exhibits significant improvements in permeance and Cl-/SO42- selectivity compared to pristine PA membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Huawen Peng, Yongjin Hu, Shaoping Li, Jingyi Rao, Qiang Zhao
Summary: This study utilized sulfonium salts to modify polyamide nanofiltration membranes for high performance Mg2+/Li+ separation. The modification resulted in enhanced positive charge and loose structures of the membranes, leading to a 4.3 times improved permeance. The modified membrane exhibited high water permeance and good Mg2+/Li+ selectivity, along with good stability. This study demonstrates the promising potential of sulfoniums for engineering advanced lithium extraction membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Qiang Xue, Wenqiao Meng, Qing Fang, Jinyuan Zhu, Kaisong Zhang
Summary: In the research on thin-film nanocomposite (TFN) membranes, we found that nanovoids formed by two-dimensional MXene nanosheets in the polyamide layer can significantly increase membrane permeance by 2.8 times. The size of nanochannels is correlated with the quantity, size, and spreadability of MXene nanosheets. Our study offers a new perspective on the generation of nanochannels in TFN membranes and optimization for better desalination performance.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Chemical
Tong Wu, Hanyu Wu, Xunda Feng, Shuangjiang Luo, Minghong Wu, Yizhou Zhang
Summary: Protonation-regulated interfacial polymerization using phosphate saline buffer can create ultra-thin, highly charged polyamide membranes with excellent permeation performance and anti-scaling and anti-fouling characteristics. This method allows for tailored membrane functionality and enables their use in water purification under various water conditions.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Ziyang Zhang, Yingtao Luo, Huawen Peng, Yu Chen, Rong-Zhen Liao, Qiang Zhao
Summary: A new method is proposed that augments data availability for thin film polyamide nanofiltration membranes by distorting natural features of monomer molecular structures. This approach allows leveraging the powerful fit of deep learning without the need for big data at the outset. The application of molecular augmentation in deep learning for polyamide nanofiltration membrane performance prediction shows effective optimization with accurate results.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Huawen Peng, Xufei Liu, Yafei Su, Jiapeng Li, Qiang Zhao
Summary: Efficient Mg2+/Li+ separation is crucial for addressing the worldwide lithium shortage. This study presents a tagged-modification approach to overcome the trade-off between desirable membrane properties and achieve enhanced performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Shuting Xu, Jiahuan Liu, Jianqiang Wang, Haibo Lin, Qiu Han, Fu Liu, Chuyang Y. Tang
Summary: This study presents a new method for preparing polyamide nanofiltration membranes with high permeability and selectivity by introducing guanidil into the reaction. The membranes exhibited excellent water permeance and rejection of Na2SO4, as well as outstanding anion sieving capability and tetracycline removal. This convenient and scalable preparation strategy holds great application potential in desalination and resource recovery.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Kaiming Fan, Yanling Liu, Xiaoping Wang, Peng Cheng, Shengji Xia
Summary: In this study, different nanofiltration membranes with varying active layers were synthesized and their characteristics were comprehensively investigated. The study found differences in separation performance and physicochemical properties among the different membrane types, providing guidance for the rational selection of nanofiltration membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Wei Cheng, Peizhi Wang, Yuhao Zhang, Haorui Wang, Jun Ma, Tao Zhang
Summary: In this study, the oxidation resistance of fully aromatic (NF90) and semi-aromatic (NF270) polyamide NF membranes to reactive oxidative species including SO4. and HO. was investigated. The results showed that SO4. was more reactive to the N moieties of the NF90 membrane, while HO. reacted unselectively with polyamides. The radicals also affected the permselectivity of the membranes differently. Fully aromatic polyamide membrane exhibited higher resistance to oxidative radicals than semi-aromatic polyamide membrane.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Ben-Qing Huang, Yong-Jian Tang, An-Ran Gao, Zuo-Xiang Zeng, Shuang-Mei Xue, Chen-Hao Ji, Chuyang Y. Tang, Zhen-Liang Xu
Summary: The dually charged nanofiltration (NF) membranes prepared by facile modification with diethylenetriamine (DETA) after interfacial polymerization showed ideal rejection for both Na2SO4 (98.2%) and MgCl2 (94.1%), with a pure water permeability of 17.0 L m(-2) h(-1) bar(-1). These membranes also exhibited high rejection to a series of heavy metals, demonstrating good potential for heavy metals removal.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Xingyu Chen, Wenyi Wang, Liuyong Zhu, Caini Liu, Fangyan Cui, Ning Li, Bingjie Zhang
Summary: A novel electric field-assisted strategy was used to fabricate GO-functionalized PA NF membranes with enhanced water flux, ion selectivity, and antifouling properties. These membranes have the potential to impact applications in water purification.
ACS APPLIED NANO MATERIALS
(2021)
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)