Article
Engineering, Chemical
Ye-Qi Hu, Hao-Nan Li, Zhi-Kang Xu
Summary: This study demonstrates the fabrication of Janus hollow fiber membranes with functionalized outer surface for the continuous demulsification and separation of oil-in-water emulsions. The prepared membranes can continuously separate surfactant-stabilized oil-in-water emulsions with high efficiency.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Yi Wu, Guilin Xu, Tong Wang, Ming Xia, Qin Cheng, Jia Xu, Ke Liu, Limin Wu, Dong Wang
Summary: In this study, a low-cost and antibacterial AgNPs@PVA-co-PE membrane was developed to effectively separate stabilized emulsions with high efficiency and gravity-driven flux. The synergistic effect between the bactericidal properties and antiadhesion of superhydrophobicity on the membrane surface enables strong antibacterial activity against bacteria.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Chemical
Ruilin Su, Ling Yu, Liangzhong Li, Da Chen, Hai Liu, Xiaoyun Fan, Guoqiang Liu, Ruixue Ma, Kun An, Yang Yu
Summary: A novel Janus membrane was prepared by electrospinning silica nano particle doped PVDF-HFP nanofibers on a superhydrophilic PDA coated mesh, achieving unidirectional water permeation. The membrane exhibited a large water contact angle difference and stable water flux during oil/water separation process, showing its potential for oily wastewater treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Qi Xiong, Hao Chen, Qiong Tian, Xuejie Yue, Fengxian Qiu, Tao Zhang, Ao-Bing Wang
Summary: This study presents a facile and versatile method to fabricate a polydopamine/polyethylene terephthalate/polyvinylidene fluoride (PDA/PET/PVDF) Janus membrane with asymmetric wettabilities via sequential electrospinning technique and surface chemical modification. The resulting membrane demonstrates excellent performance in water/oil separation, with high efficiency and good mechanical properties. The study highlights the importance of using waste plastic as raw materials and provides a solution for multifunctional oil/water separation and purification.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Bingbing Cheng, Song Yan, Yushan Li, Long Zheng, Xianjie Wen, Yeqiang Tan, Xianze Yin
Summary: A simple method is developed to grow superhydrophilic nanocoating on a PVDF fiber surface, which enables the fabrication of asymmetric wettable Janus PVDF fibrous membranes with high separation efficiency for oil/water emulsions. These Janus membranes with opposite wettability exhibit excellent separation efficiency, high flux, antibacterial activity, and antifoul properties. They also show remarkable flux cycling stability and retained separation efficiency after multiple cycles, making them promising for oily wastewater treatment and water purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Hou-Ying Ma, Yi-Ning Hu, Hao Yang, Li-Jing Zhu, Gang Wang, Zhi-Xiang Zeng, Ling-Hui Wang
Summary: Janus membranes with asymmetrical wettability have been successfully prepared by depositing dopamine and its derivatives on hydrophobic substrates, along with poly(vinylidene fluoride) membranes using catechol and polyethyleneimine as additives. These membranes exhibit excellent emulsion separation, stability, and durability, offering potential applications in lossless transportation of liquids.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Jing Yang, Hao-Nan Li, Xian Zhang, Cheng-Ye Zhu, Hao-Hao Yu, Zhi-Kang Xu
Summary: The Janus membranes constructed by single-side modification of PVDF membrane provide rapid mass transfer separation of viscous ILs and deemulsification function for IL-in-water emulsions. These membranes exhibit high permeation speed, stable flux, and excellent IL recovery capacity during long-term cyclic separation processes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Xingzhen Zhang, Ying Liu, Feng Zhang, Wangxi Fang, Jian Jin, Yuzhang Zhu
Summary: A nanofibrous Janus membrane with multifunctional and self-cleaning properties was developed for the separation of complex oil-in-water and water-in-oil emulsions. The membrane consisted of a hydrophilic beta-FeOOH layer and a hydrophobic PVDF-HEP layer, which could effectively separate different types of emulsions. The membrane also showed excellent self-cleaning capability and stability due to the synergistic effect of beta-FeOOH photocatalysis and asymmetric wettability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Composites
Zhengfei Wu, Yi Wang, Liangliang Dong, Mingqing Chen, Dongjian Shi
Summary: In this study, Janus membranes with asymmetric wettability were fabricated using a facile polydopamine (PDA) controlled modification method. These membranes showed excellent separation selectivity and high permeability for various oil/water mixtures. The membranes exhibited good reusability and could be applied in complex oil/water separation systems.
COMPOSITES COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Xi Zhang, Chang Liu, Jing Yang, Xiao-Jun Huang, Zhi-Kang Xu
Summary: The study demonstrates the potential of separation membranes with switchable wettability in efficiently treating both oil-in-water and water-in-oil emulsions. By using a simple co-deposition method of tannic acid and diethylenetriamine, commercial polypropylene membranes are endowed with switchable surface wettability that can cyclically translate between hydrophilicity and hydrophobicity through water/ethanol treatments without losing surface wettability. Density functional theory simulations and UV-vis spectra analysis were used to illustrate the chemical mechanism behind this hydrophilicity-hydrophobicity translation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Yaqi Zhang, Linli Tan, Na Han, Shiwei Tian, Wei Li, Wei Wang, Yutong Wu, Zhongshun Sun, Xingxiang Zhang
Summary: This study describes a new method to improve the water/oil separation performance of P(AN-MA) membranes by fabricating ZIF-8/P(AN-MA) hybrid membranes with superoleophobic and superhydrophobic properties. These membranes can efficiently and accurately separate oil-in-water and water-in-oil emulsions at a low pressure, and exhibit excellent anti-oil-fouling and anti-water-fouling properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Baibing Wei, Kai Wang, Jiarong Wang, Tian C. Zhang, Xiaobao Tian, Shaojun Yuan, Yingqi Li, Haiqing Chang, Ying Liang, Zhihong Zhou
Summary: A thermo-modulated nanofibrous skin covered Janus membrane with good antifouling ability and oil-water separation performance was successfully developed using a scalable synergetic electrospraying/electrospinning method. The membrane exhibited high flux and efficiency in separating oil/water mixtures, and demonstrated improved wettability and water permeability with temperature variation. It also showed excellent antifouling and cleaning ability due to its thermoresponsive property.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Applied
Kun Peng, Yanan Huang, Na Peng, Chunyu Chang
Summary: This study developed a superhydrophilic/underwater superoleophobic nanocellulose-based membrane by depositing silver nanoparticles on tunicate cellulose nanocrystals. These membranes exhibit nanoporous structure, high separation efficiency for oil/water emulsion, and excellent antibacterial efficacy.
CARBOHYDRATE POLYMERS
(2022)
Article
Engineering, Environmental
Huihui Wang, Cheng Hao, Tong Shu, Pandeng Li, Tianyi Yu, Longjiang Yu, Ning Yan
Summary: A versatile Janus ramie fabric with unidirectional liquid transport (ULT), flame retardancy, and moisture-wicking features was fabricated using a simple and sustainable method. The fabric exhibited excellent oil/water separation performance, mechanical abrasion and chemical resistance, self-extinguishing ability, and low heat release rate. This Janus ramie fabric has great potential for various practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Kaili Wang, Xiaorong Liu, Youming Dong, Shifeng Zhang, Jianzhang Li
Summary: Inspired by the intelligent water manipulation behavior of cactus, spiders, and desert beetles, biomimetic Janus wood membranes with asymmetric wettability were successfully prepared. These membranes exhibit unidirectional water transport ability and selective oil/water separation, holding great potential for applications such as droplet manipulation and wastewater purification.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(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)