Article
Engineering, Chemical
Mengchen Zhang, Peishan Li, Mingjie Li, Wenbiao Zheng, Gaoyi Xie, Xiaolong Xu, Changyu Liu, Jianbo Jia
Summary: A simple method was reported to control the assembly behavior of laminar GO membranes in organic solvents by altering GO-solvent interactions. Experimental and theoretical studies showed that the dispersion properties of GO nanosheets in different organic solvents determined their assembly behaviors. GO membranes built up with good solvents assistant assembly exhibited competitive organic solvent nanofiltration performances.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Ping Li, Yu-Xuan Li, Yu-Zhe Wu, Zhen-Liang Xu, Hai-Zhen Zhang, Peng Gao, Sun-Jie Xu
Summary: The novel eGO/PA-HFC membrane showed excellent performance in heavy metal removal, with systematic studies indicating great potential for wastewater treatment applications.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Chemical
Yi-Hang Gu, Xi Yan, Yan Chen, Xiao-Jing Guo, Wan-Zhong Lang
Summary: This study proposes a novel strategy for preparing two-dimensional laminar membranes through layer-by-layer self-assembly. The membrane performance can be finely controlled by manipulating factors such as substrate charge, assembled dye characteristics, and number of self-assembly layers. Moreover, the membranes exhibit strong performance stability and efficient separation of mixed dyes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Danielle Scheepers, Jeroen de Keizer, Zandrie Borneman, Kitty Nijmeijer
Summary: Layer-by-layer assembly of polyelectrolyte layers is used to fabricate versatile nanofiltration membranes, with pH as a determinant factor in membrane formation and performance. By varying the pH, the charge density of polyelectrolyte layers can be adjusted, affecting salt retention and adsorption. Symmetric membranes with different pH levels (4, 8, and 9) and asymmetric membranes with a combination of base layers terminated by PEI/PSS layers are compared. The results show that increasing the pH leads to lower PEI charge density, causing higher adsorption. However, reducing charge density in symmetric membranes decreases salt retention, while asymmetric membranes consistently achieve >90% retention for MgSO4 and Na2SO4. The advantage of asymmetric membrane formation is demonstrated by the improved performance compared to symmetric membranes, with higher permeabilities and salt retentions (>95% for MgSO4 and Na2SO4). This pH-tailored assembly method allows for the production of versatile membranes with enhanced performance in terms of water flux and salt retention, without additional synthesis or modification steps.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Wenqi Xu, Arne Lindbrathen, Saravanan Janakiram, Luca Ansaloni, Liyuan Deng
Summary: The use of CO2-selective membranes based on polyvinylamine (PVAm) with graphene oxide (GO) and grafted GO has shown promising results for CO2/H2 separation. The facilitated transport effect of PVAm enhances CO2 transport, while the GO-based nanosheets contribute to a barrier effect for H2 diffusion. The addition of GO or PVA-GO improves the separation performance of the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Han Runlin, Wang Chaoyue, Bi Congcong, Wang Hanli
Summary: Polyvinylidene fluoride (PVDF) has been widely used in separation membranes due to its stability and strength. However, its hydrophobic nature leads to contamination and reduced flux. This study used PVDF microporous membrane as matrix material and graphene oxide (GO) as separation layer material to prepare a GO/Mn3O4/PVDF composite membrane. The composite membrane showed high flux and separation selectivity in organic compound filtration.
Article
Engineering, Chemical
Chen Wang, Myoung Jun Park, Hanwei Yu, Hideto Matsuyama, Enrico Drioli, Ho Kyong Shon
Summary: This review comprehensively investigates the latest research achievements of nanocomposite membranes prepared by layer-by-layer (LBL) assembly. Different fabrication methods are introduced, and the applications and challenges of nanocomposite membranes in various separation areas are summarized.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Jiarui Chen, Shanshan Xu, Chuyang Y. Tang, Binjie Hu, Begum Tokay, Tao He
Summary: Layer-by-layer (LBL) assembly is an important method for preparing nanofiltration (NF) membranes with tunable charge and pore size, high water permeability, and good anti-fouling properties. However, LBL NF membranes suffer from salinity instability in highly saline solutions. This review analyzes the physical and chemical principles of LBL assembly related to the salinity stability of LBL NF membranes, and proposes methods to improve their stability.
Article
Biochemistry & Molecular Biology
Na Meng, Pinping Zhao, Wei Zhou, Jie Yan, Die Hu, Yanqing Fang, Jun Lu, Qiang Liu
Summary: Graphene oxide (GO) membranes have attracted significant attention in water processing due to their unique characteristics. In this study, diamine-modified nanofiltration membranes were prepared using covalently crosslinked GO and different aliphatic diamines. The adipose diamine modification showed better layer spacing, lower mass-transfer resistance, and improved stability. The results provide an experimental basis and research ideas for overcoming the trade-off effect of a lamellar GO membrane.
Article
Engineering, Environmental
Xiaomin Tang, Binbin Guo, Shixin Zhang, Xuemei Tan, Huaili Zheng
Summary: A novel layer-by-layer repair method was proposed to fabricate MXene lamellar membranes with few defects. The repaired membranes exhibited high stability in nanofiltration for 120 hours and showed excellent rejection rates for NaCl, MgCl2, and methylene blue.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Shi Li, Dong Wang, He Xiao, Hui Zhang, Shilin Cao, Lihui Chen, Yonghao Ni, Liulian Huang
Summary: A bamboo cellulose-based nanofiltration membrane was prepared using layer-by-layer assembly and spraying methods. The composite membrane showed good nanofiltration performance with a rejection rate of about 36.11% against a 500 ppm NaCl solution, demonstrating the scalability and convenience of the fabrication process.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Lulu Qian, Chengyu Yuan, Xu Wang, Haiguang Zhang, Lei Du, Gaoliang Wei, Shuo Chen
Summary: In this study, a MXene ultrafiltration membrane with good electroconductivity and hydrophilicity was prepared and exhibited excellent fouling resistance. Under external voltage, the fluxes were significantly improved during the treatment of raw water containing bacteria, natural organic matter (NOM), and coexisting bacteria and NOM. Moreover, the membrane also showed improved performance in the treatment of actual surface water, with increased flux and TOC removal. The MXene membrane demonstrated great potential in advanced water treatment due to its excellent antifouling ability.
Article
Green & Sustainable Science & Technology
Aya Abd El Aziz Elfiky, Mahmoud F. Mubarak, Mohamed Keshawy, Ibrahim El Tantawy El Sayed, Thanaa Abdel Moghny
Summary: This study developed a nanocomposite membrane using polyvinyl chloride and nanocellulose@titanium aluminate for effective dye filtration and adsorption from wastewater. The membrane's thermal and electrical properties were characterized using FTIR, XRD, SEM, and TGA. The study found that the PVC-NC@TALCM nanocomposite membrane, loaded with 5% titanium aluminate and adjusted to pH 10, removed 98.6% of the dye. Kinetic and isotherm studies showed pseudo-second-order kinetics and Freundlich isotherms for the dye adsorption on the membrane. The researchers emphasized the economic and eco-friendly nature of the PVC-NC@TALCM nanocomposite membrane for industrial wastewater treatment.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Engineering, Environmental
Xiaoju Yan, Shirong Cheng, Cong Ma, Junyu Li, Guodong Wang, Chengyu Yang
Summary: In this study, a nanofiltration membrane was prepared by intercalating sodium tetraborate pentahydrate (STB) into graphene oxide (GO) nanosheets, exhibiting a large interlayer space, high hydrophilicity, and increased pure water flux compared to the GO membrane. The STB@GO membrane showed excellent dye rejection capabilities for various dyes and performed well under different conditions, showing promising potential for dye wastewater treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Yangyuan Ji, Youn Jeong Choi, Yuhang Fang, Hoang Son Pham, Alliyan Tan Nou, Linda S. Lee, Junfeng Niu, David M. Warsinger
Summary: Due to the inability of widely used removal processes to destroy PFAS, this study applies an electric field in a crossflow membrane system to assess the performance of PFOA rejection, water flux, and energy consumption. The electric field-assisted nanofiltration design achieved a high PFOA rejection rate of 97% and a water flux of 68.4 L/m2 hr, requiring low electrical energy consumption of 7.31 × 10-5 kWh/m3/order.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Li Wang, Xiangju Song, Tao Wang, Shuzheng Wang, Zhining Wang, Congjie Gao
APPLIED SURFACE SCIENCE
(2015)
Article
Engineering, Chemical
Zhining Wang, Zhilei Zhang, Xida Wang, Li Wang, Miaoqi Wang, Shuzheng Wang, Jinyu Sheng, Tao Wang, Xingchen Liu, Congjie Gao
DESALINATION AND WATER TREATMENT
(2013)
Article
Chemistry, Multidisciplinary
Penglei Wang, Yuanyuan Tang, Yunsong Liu, Tao Wang, Pengfei Wu, Xiao-Ying Lu
ENVIRONMENTAL SCIENCE-NANO
(2018)
Article
Engineering, Chemical
Tao Wang, Ziyi Wang, Penglei Wang, Yuanyuan Tang
JOURNAL OF MEMBRANE SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Xiaochan An, Yunxia Hu, Ning Wang, Tao Wang, Zhongyun Liu
NPG ASIA MATERIALS
(2019)
Article
Engineering, Environmental
Ziyi Wang, Yuanyuan Tang, Tao Wang, Kun Liang
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Engineering, Chemical
Tao Wang, Wiebe M. de Vos, Joris de Grooth
Summary: Micropollutants pose a significant threat to water quality, aquatic life, and public health. In this study, a catalytic polymeric membrane was developed to effectively degrade naproxen and other micropollutants, providing an energy-friendly way of removing them. The results highlight the importance of residence time in the treatment efficiency of catalytic membranes and demonstrate the potential for reduced energy cost.
JOURNAL OF MEMBRANE SCIENCE
(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)