Article
Materials Science, Multidisciplinary
Wenna Liu, Cuicui Su, Peipei Su, Huidong Yang, Peng Lu, Zhentao Du, Yumin Ye
Summary: This study presents a method for fabricating sub-20 nm bilayer hydrophilic coatings on nanofiltration membranes using iCVD, reducing membrane fouling while minimizing impacts on water flux and salt rejection. The modified NF membranes exhibit significantly lower microbial adhesion with minimal effects on permeation and salt rejection performance, highlighting a potential novel approach for reducing membrane fouling in desalination and industrial wastewater treatment.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Yuanwei Liu, Junbin Liao, Guibin Peng, Chenchu Dong, Shanshan Yang, Jiangnan Shen
Summary: Facile preparation of cost-effective AEMs with desirable antifouling potential was achieved by immersing PVC films in TETA solution, leading to AEMs with low surface resistance, good membrane integrity, and superior antifouling performance. The optimized AEM also showed improved electrodialysis performance compared to commercial AEMs, indicating its potential for practical applications.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Engineering, Chemical
Shaobo Zhang, Yi Li, Yan Yuan, Li Jiang, Haitao Wu, Yanmao Dong
Summary: Membrane separation is an effective method for treating oily wastewater. This study improved the efficiency of oil-in-water emulsion separation by using alkali treatment to promote the deposition of Fe (III) on PVDF membranes. A hydrophilic coating was also produced on the membrane surface, enhancing permeability and antifouling properties. The modified membrane showed excellent pure water flux and oil rejection, as well as underwater anti-oil adhesion and antifouling properties. This environmentally friendly PVDF membrane modification strategy has great potential for oil-in-water emulsion separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Environmental
Gourav Mishra, Mausumi Mukhopadhyay
Summary: By incorporating cerium oxide loaded halloysite nanofiller, the PVC ultrafiltration membranes were successfully enhanced in terms of hydrophilicity, water flux, and bacteria inhibition. The addition of 2% CeO2@HNTs significantly improved membrane performance and enhanced rejection of humic acid.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Jenet George, Vaidyanathan Vinoth Kumar
Summary: In this study, a novel polymeric hybrid membrane was designed for the efficient filtration of toxic pentachlorophenol (PCP) from water by incorporating a sustainable additive, poly (methyl vinyl ether maleic anhydride) (PMVEAMA), into poly (ether-ether sulfone) (PEES) polymer. The addition of PMVEAMA significantly influenced the membrane's morphology, structure, porosity, water content, and flux performance. The PMVEAMA concentration showed positive effects on pore formation, hydrophilicity, surface roughness, fouling reduction, and permeability improvement. The PEES/PMVEAMA membrane exhibited enhanced antifouling properties and permeability, making it a potential candidate for water purification applications.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Chia-Yu Lai, Yi-Ming Sun, Ying-Ling Liu
Summary: This study aimed to improve the performance of poly (vinyl alcohol) (PVA) membranes by adding water-soluble ozonated lignin (Ws-OL) as an additive to increase the water permeation flux. The modified PVA membranes showed enhanced surface hydrophilicity, reduced crystallinity, and smaller crystallite sizes compared to the neat PVA membrane. Under the optimized condition, the PVA membranes modified with 50% Ws-OL and cross-linked with 4-sulfophthalic acid (SPTA) exhibited a water permeation flux of 78,630 g m-2 h-1 and a salt rejection of 99.91% in a 3.5% NaCl(aq) solution at 25 degrees C.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nuclear Science & Technology
Yu Gu, Bo-Wu Zhang, Zhen Guo, Ji-Hao Li, Ming Yu, Lin-Fan Li, Jing-Ye Li
Summary: The modification of PVDF membranes with a 3D approach using gamma-ray irradiation to cross-link PVA was found to be effective in improving the hydrophilicity and antifouling properties of the membranes. By customizing the pore size and distribution with controlled PVA concentration, the rejection ability and resistance to chemical cleaning were enhanced, prolonging the membrane service lifetime. This modification method can be expanded to other hydrophilic macromolecular modifiers, demonstrating its universality in functionalizing polymeric membranes for improved performance.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Engineering, Environmental
Bahar Ozbey-Unal, Cigdem Balcik, Bart van der Bruggen
Summary: The study aims to develop superwettable Janus membranes for the treatment of wastewater containing surfactants and oil. Three different methods were used to fabricate the membranes with hydrophilic silica nanoparticles. The results showed that the membranes achieved high resistance to wetting and fouling, with the M2 membrane exhibiting the best performance. The study suggests that Janus membranes fabricated by blending and delayed phase inversion methods are promising for the treatment of complex wastewater.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Baku Nagendra, Syed Salman, Hans Peter Bloch, Christophe Daniel, Paola Rizzo, Rosalba Fittipaldi, Gaetano Guerra
Summary: The study investigates the properties of sulfonated poly(phenylene oxide) (PPO) films with both hydrophilic amorphous phase and hydrophobic crystalline phase, achieved through solid-state film sulfonation. The semicrystalline-sulfonated PPO (SPPO) films exhibit superior hydrothermal and solvent stability compared to amorphous SPPO films. Moreover, the semicrystalline SPPO films demonstrate faster guest sorption kinetics due to the nanoporous-crystalline (NC) morphology.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Xiaodong Xu, Lujuan Li, Seyed Mohsen Seraji, Lei Liu, Zhen Jiang, Zhiguang Xu, Xin Li, Sheng Zhao, Hao Wang, Pingan Song
Summary: The addition of inositol molecules as cross-linkers can increase the strength and toughness of nanostructured PVA composites, with a correlation between H-bond cross-linking density and mechanical properties. Dynamic physical cross-linking and crystalline grain refinement contribute to the enhanced performance of the materials.
Article
Materials Science, Multidisciplinary
Hongxu Liu, Junhao Xie, Jingxuan Zhao, Peng Xue, Xue Lv, Shulin Sun
Summary: With the rapid development of industrial technology, wastewater pollution has become an important social issue that severely affects sustainable development. In this study, PVDF-g-IL films were prepared by irradiation-induced radical grafting method and used for dye and emulsion wastewater separation for the first time. The grafted IL significantly improved the performance of PVDF films, resulting in excellent filtration performance for cationic dyes and emulsion wastewater.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Chemical
Tao Zhang, Xin Guo, Brusly Solomon, Mohsen Sharifpur, Li-Zhi Zhang
Summary: In this study, a hydrophobic-hydrophilic composite hollow fiber membrane with remarkable antiwetting and antifouling properties was successfully prepared to address the issues of membrane fouling and wetting in seawater desalination. The membrane, prepared using a chemical grafting method, exhibited low moisture transfer resistance and a superhydrophobic surface, resulting in a sustained high permeate flux.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Mingyang Zhou, Junchao Chen, Wenjin Zhou, Juan Sun, Hongyan Tang
Summary: Inspired by fish scales, a facile method was used to develop composite NF membranes with highly stable antifouling property. The surface of the membranes were modified with micro/nano hydrophilic SiO2 spheres, leading to excellent antifouling performance against various substances.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Chen Shuo, Huang Wei, Yang Ke, Xu Yan-Lian, Wang Dong-Hui, Huang Wei-Guo
Summary: This study introduces a method based on in-situ aminolysis of pPFPA to create hydrophilic surfaces with high design freedom and abundant choices of hydrophilic molecules. By immersing pPFPA coated substrates into specific solutions for two hours, the water contact angle of the surfaces is drastically reduced, demonstrating the high efficiency and versatility of this method. These hydrophilic surfaces are capable of mitigating fog formation, self-cleaning oil contaminants, and exhibit excellent antifouling performance against algae.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Shijie Xu, Wenzhong Ma, Haicun Yang, Zheng Cao, Fanghong Gong, Chunlin Liu
Summary: This study successfully improved the hydrophilicity and contamination resistance of PTFE microfiltration membranes through modification. The optimized conditions resulted in a high water flux for the modified membranes.
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)