Article
Engineering, Chemical
Gian Vincent Dizon, Yu-Sheng Lee, Antoine Venault, Irish Valerie Maggay, Yung Chang
Summary: Zwitterionic modification using PMMA-r-PEGMA-r-PSBMA copolymer successfully reduced membrane biofouling by about 90%, showing higher total flux recovery ratio compared to commercial hydrophilic PVDF membranes in BSA filtration and water permeation tests. The zwitterionic bi-continuous microfiltration membranes have wide applications ranging from wastewater treatment to biomedical fields.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Applied
Soudeh Almaie, Vahid Vatanpour, Mohammad Hossein Rasoulifard, Mir Saeed Seyed Dorraji
Summary: This study synthesized novel PVDF membranes with negatively charged amphiphilic copolymer additives and investigated their properties. The modified membranes showed improved pure water flux, flux recovery ratio, and antifouling performance compared to the original PVDF membranes. The synergistic effects of hydrogen bonding and the electrostatic repulsion of negatively charged groups were attributed to the enhanced performance of the copolymerized blended membranes.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Chemical
Dong Je Han, Jeong F. Kim, Jong-Chan Lee, Uijin Nam, Young Hoon Cho, Eun-Ho Sohn
Summary: In this study, ionic PVDF membranes with simultaneous antifouling and bactericidal properties were developed to overcome the bio-contamination obstacle in water purification. Two different PVDF-based additives were successfully synthesized and added to PVDF dope solutions to alter the membrane properties. Among the prepared PVDF membranes, the one containing 10% PVDF-MPC/QDMA exhibited optimal performances in terms of both antifouling and bactericidal properties.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Environmental Sciences
Yili Chen, Qian Sheng, Jianjian Wei, Qinghe Wen, Dehua Ma, Jiansheng Li, Yawei Xie, Jinyou Shen, Xiuyun Sun
Summary: In this study, a PVDF membrane modified with ozonation catalyst nano-MnO2 was used in MBR, coupled with in-situ ozonation to improve anti-biofouling performance. The combined approach effectively reduced membrane biofouling rate and increased membrane cleaning cycle, providing a new strategy for controlling membrane biofouling in MBR treating industrial wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Ying-Nien Chou, Ming-Zu Ou
Summary: This research developed a zwitterionic copolymer, poly(OxMA-co-SBMA), with aldehyde functional groups for nucleophilic addition reactions and SBMA units for antifouling properties. The copolymer was grafted onto an amine-based substrate using dip-coating technology, resulting in nonfouling and antiprotein properties. The optimized copolymer exhibited improved hydrophilicity and resistance to protein adsorption, as well as reduced blood cell activation, tissue cell adhesion, and bacterial attachment. The dip-coating method offers a fast and simple procedure for achieving biofouling resistance in biomedical materials.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Hossein Mahdavi, Nazanin Zeinalipour, Mohammad Amin Kerachian, Ali Akbar Heidari
Summary: In this study, high-performance mixed matrix nanofiltration PVDF membranes (MMMs) were fabricated by incorporating PVDF-g-PMMA copolymer and GO and GO@SiO2 nanoparticles. The membrane showed high dye rejection and water flux enhancement due to the addition of hydrophilic copolymer and nanoparticles to the PVDF matrix. The durability and antifouling abilities of the membrane were also investigated, and significant performance was obtained.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Chemical
Xiao Wu, Dongdong Kang, Nan Liu, Huiju Shao, Xiaoliang Dong, Shuhao Qin
Summary: In this study, amphiphilic copolymers and functionalized nanoparticles were used to modify polymeric membranes, showing synergistic effects on membrane microstructure and performance. The MWCNT-COOH modified membrane with strong hydrogen bonding exhibited the best antifouling properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Marcello Pagliero, Antonio Comite, Omar Soda, Camilla Costa
Summary: This study focused on the effect of support structure and material on the morphology and distillation performance of flat sheet membranes made of PVDF. Different interactions between the dope solution and support materials, as well as the extent of mutual entanglement, were identified as key parameters in membrane preparation, governing overall porosity and pore size.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Lei Zhang, Xingxing Shi, Minghan Zhao, Zhen Yin, Jianping Zhang, Songbo Wang, Wei Du, Jun Xiang, Penggao Cheng, Na Tang
Summary: A novel approach using a combination of atomic layer deposition (ALD) and photodeposition was proposed to prepare stable and antibacterial organic-inorganic composited membranes. The as-prepared membranes exhibit similar mechanical stability and separation performance as pristine PVDF membranes, while also showing antibacterial and dye degradation capabilities. This method demonstrates great potential for controlled preparation of inorganic modifications on inert organic surfaces with different compositions and shapes for various applications.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Chemical
Diyana Kamarudin, N. Awanis Hashim, Boon Hoong Ong, Miftah Faried, Keishi Suga, Hiroshi Umakoshi, Wan Adibah Wan Mahari
Summary: This study utilizes silver nanoparticles incorporated in PVDF membranes for membrane fouling analysis. The quantification of foulant using Raman spectroscopy and thermogravimetric analysis shows the occurrence of fouling phenomena on the membrane. The presence of AgNPs effectively reduces fouling and enhances surface enhancement in Raman spectroscopy analysis.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Dongdong Kang, Huiju Shao, Guijing Chen, Xiaoliang Dong, Shuhao Qin
Summary: The study investigates the effects of matrix miscibility on membrane microstructure during NIPS process, leading to the development of PVDF/SMANa ultrafiltration membranes with superior performance. This strategy holds promise for large-scale membrane manufacturing.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Ronghua Ma, Xiaolong Lu, Xiao Kong, Shuyun Zheng, Shaozhe Zhang, Sihua Liu
Summary: This study successfully achieved controllable positive-charged modification of PVDF-CTFE membrane surface using DETA, improving membrane performance significantly and providing a new idea for modification of chlorinated polymers. The modified positive-charged membrane showed excellent positive-charged effect, high N element content, and reduced water contact angle, indicating enhanced resistance to positively charged pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
Seung Jae Moon, Young Jun Kim, Du Ru Kang, So Youn Lee, Jong Hak Kim
Summary: In this study, a fluorine-containing amphiphilic graft copolymer was synthesized and blended with poly(vinylidene fluoride) (PVDF) membranes to improve their water permeability, antifouling properties, and mechanical strength. The graft copolymer formed a self-assembled nanostructure, which increased the pore size and porosity of the membrane. The modified membrane showed a high water permeance, excellent antifouling properties, and improved mechanical properties.
Article
Engineering, Environmental
Lingfeng Ni, Yijing Zhu, Jie Ma, Yayi Wang
Summary: Novel control strategies for membrane biofouling with eco-friendly photocatalytic technology using metal-organic frameworks were studied. The synthesized CdS/MIL-101 photocatalyst modified membrane C2 showed enhanced hydrophilicity and water permeability compared to the pristine membrane C0, leading to an extended filtration cycle and excellent biofouling alleviation effect. The photocatalytic membrane demonstrated remarkable antimicrobial effect and higher antifouling capabilities in filtration tests, with reactive species playing a predominant role in the anti-biofouling processes.
Article
Engineering, Chemical
Pengfei Zhang, Saeid Rajabzadeh, Antoine Venault, Shengyao Wang, Qin Shen, Yuandong Jia, Chuanjie Fang, Noriaki Kato, Yung Chang, Hideto Matsuyama
Summary: A powerful hydrophobic membrane modification method was developed in this study, which involves surface entrapment of an amphiphilic copolymer onto a PVDF hollow fiber membrane prepared through a thermally induced phase separation method. The preparation conditions significantly affected the membrane surface hydrophilicity, with longer air-gap distance, lower polymer concentration, and higher PS-PEGMA concentration favoring better copolymer entrapment. The one-step modification method was found to be more robust and reliable compared to conventional coating processes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Gian Vincent Dizon, Yu-Sheng Lee, Antoine Venault, Irish Valerie Maggay, Yung Chang
Summary: Zwitterionic modification using PMMA-r-PEGMA-r-PSBMA copolymer successfully reduced membrane biofouling by about 90%, showing higher total flux recovery ratio compared to commercial hydrophilic PVDF membranes in BSA filtration and water permeation tests. The zwitterionic bi-continuous microfiltration membranes have wide applications ranging from wastewater treatment to biomedical fields.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Biomaterials
Irish Valerie Maggay, Antoine Venault, Chi-Yao Fang, Cheng-Chen Yang, Chen-Hua Hsu, Chih-Yu Chou, Kazuhiko Ishihara, Yung Chang
Summary: By utilizing a combination of zwitterionic membranes with improved hydration properties, this study demonstrates their potential as wound-dressing materials for promoting healing of acute and chronic wounds. The membranes exhibit low biofouling, enhanced blood compatibility, and high cell viability, leading to accelerated wound healing kinetics and improved quality of new tissue.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Article
Engineering, Chemical
Chen-Hua Hsu, Antoine Venault, Haozhe Zheng, Chen-Tsyr Lo, Cheng-Chen Yang, Yung Chang
Summary: This study demonstrates that copolymers with SBMA units are ineffective in providing antifouling properties to PVDF membranes after steam sterilization, while copolymers with SBAA units remain unaffected. It is concluded that using SBAA derivatives is preferable for improving membrane fouling resistance in scenarios where steam sterilization is necessary.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Manuel Reyes De Guzman, Chester Kenneth A. Andra, Micah Belle Marie Yap Ang, Gian Vincent C. Dizon, Alvin R. Caparanga, Shu-Hsien Huang, Kueir-Rarn Lee
Summary: The study demonstrated that incorporating P(DA-SBMA) nanoparticles improved the hydrophilicity and filtration efficiency of cellulose acetate mixed-matrix membranes, with suitable size and content of nanoparticles offering optimal water flux. Testing various oil-in-water emulsions showed high separation efficiencies, indicating effective treatment of different types of oily wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Irish Valerie Maggay, Yung Chang, Antoine Venault, Gian Vincent Dizon, Chien-Jung Wu
Summary: This paper comprehensively reviews different porous filtration media and the corresponding modification techniques and functionalization strategies used to improve their properties for efficient gravity-driven filtration applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Hazel Lynn C. Maganto, Micah Belle Marie Yap Ang, Gian Vincent C. Dizon, Alvin R. Caparanga, Ruth R. Aquino, Shu-Hsien Huang, Hui-An Tsai, Kueir-Rarn Lee
Summary: By synthesizing Ag-PDA particles and infusing them into the PES matrix, the modified membrane showed improved performance with higher water flux and antibacterial properties.
Article
Engineering, Chemical
Irish Valerie Maggay, Maria Charisma Anne M. Suba, Hana Nur Aini, Chien-Jung Wu, Shuo-Hsi Tang, Ruth B. Aquino, Yung Chang, Antoine Venault
Summary: In this study, zwitterionic polyvinylidene fluoride membranes were prepared and characterized. The membranes showed sustained antibiofouling properties even after heat treatment, indicating their potential application in various domains requiring bi-continuous microfiltration membranes that are exposed to heat.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Antoine Venault, Yi-Tung Chin, Irish Maggay, Chih-Chen Yeh, Yung Chang
Summary: This work investigates the association of P(S-r-AA) copolymer with PVDF in the fabrication of electrospun fibers for blood filtration, showing improved wetting of nanofibers and enhanced separation and retention of white blood cells. The results demonstrate the potential of PVDF-based nanofibers as efficient separation media for whole blood, with further efforts needed to enhance biocompatibility and red blood cell recovery.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Biomaterials
Gian Vincent Dizon, Peter Matthew Toribio Fowler, Antoine Venault, Chih-Chen Yeh, Lemmuel L. Tayo, Alvin R. Caparanga, Pierre Aimar, Yung Chang
Summary: This study proposes a simple and low-energy method to form antifouling coatings on polytetrafluoroethylene (PTFE) surfaces to mitigate biofouling. By utilizing dopamine and various zwitterionic monomers for copolymerization, the coatings significantly reduce biofouling by red blood cells, platelets, whole blood, and bacteria.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Article
Engineering, Chemical
Irish Valerie Maggay, Ming-Lun Yu, Da-Ming Wang, Ching-Hsueh Chiang, Yung Chang, Antoine Venault
Summary: Using 2-pyrrolidone (2P) and water as additives, skin-free polysulfone (PSf) membranes free of macrovoids were prepared by the non-solvent induced phase separation (NIPS) process. This method improves the membrane's permeability and mechanical properties while maintaining high porosity and large pores.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Antoine Venault, Rui-Jie Zhou, Tesfaye Abebe Galeta, Yung Chang
Summary: In this study, an amphiphilic copolymer containing sulfobetaine methacrylamide (SBAA) was designed and membranes were prepared by vapor-induced phase separation (VIPS). The results showed that the zwitterionic copolymer had a higher proportion of non-freezable water and enhanced hydration layer strength. The modification also significantly increased the membrane hydration capacity and effectively mitigated biofouling. Therefore, these membranes hold great potential for biomedical and environmental applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Irish Valerie Maggay, Ting-Yu Liao, Antoine Venault, Hao-Tung Lin, Chih-Cheng Chao, Ta-Chin Wei, Yung Chang
Summary: The utilization of DBD plasma treatment on ePTFE film successfully modified its surface and endowed it with antibacterial properties. Both DMAEMA and TMAEMA monomers allowed ePTFE to kill Escherichia coli bacteria, while only TMAEMA-grafted ePTFE was able to release dead bacteria upon washing.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Antoine Venault, Hana Nur Aini, Tesfaye Abebe Galeta, Yung Chang
Summary: This study demonstrates the successful fabrication of low-biofouling homogeneous porous membranes using a non-toxic solvent DMSO and a copolymer PS-r-PEGMA. The choice of DMSO as a solvent is justified, and the addition of PS-r-PEGMA greatly improves membrane hydration and reduces biofouling.
JOURNAL OF MEMBRANE SCIENCE LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Shuo-Hsi Tang, Antoine Venault, Li-Hui Chou, Ding-Hung Lan, Gian Vincent Dizon, Chun Hsieh, Chih-Chen Yeh, Cheng-Liang Liu, Yung Chang
Summary: In this study, air plasma and spray technology were used for surface modification by generating hydroxyl groups and spray-coating PS-r-PEGMA copolymers. The best antifouling properties were achieved with PS50-r-PEGMA50, with a coating density of 0.3 mg/cm² significantly reducing biofouling. This surface modification technique effectively reduced biofouling by at least 75% on various materials and greatly increased signal sensitivity on blood-typing well plates.
ACS APPLIED BIO MATERIALS
(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)
