Article
Engineering, Chemical
A. Criscuoli
Summary: This study compared the energy consumption of VMD and OD in juice concentration, finding that VMD had lower energy consumption compared to OD due to the inability to use NF or RO technologies in OD.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Pooja Yadav, Ramin Farnood, Vivek Kumar
Summary: Researchers fabricated superhydrophobic electrospun nanofibrous membranes using silica nanoparticles and PVDF, achieving excellent wetting resistance and high permeability through a two-step modification process. The modified membranes demonstrated robust anti-wetting properties and superior salt rejection in membrane distillation applications.
Article
Engineering, Chemical
Jun Pan, Min Chen, Xianli Xu, Shi-Peng Sun, Zhaohui Wang, Zhaoliang Cui, Weihong Xing, Naser Tavajohi
Summary: This study investigates the feasibility of using a membrane distillation crystallization (MDC) process to treat high salt reverse osmosis (RO) brine. By improving the membrane surface hydrophobicity with different coating materials, the MDC operation significantly enhances the purity of salt crystals, offering potential improvement for existing zero liquid discharge (ZLD) systems.
Article
Engineering, Chemical
Jun Pan, Fangli Zhang, Zhaohui Wang, Shi-Peng Sun, Zhaoliang Cui, Wanqin Jin, Omar Bamaga, Hani. Abulkhair, Mohammed Albeirutty, Enrico Drioli
Summary: The composite hydrophobic PFPE/PVDF membranes show promising anti-fouling and anti-wetting performance, making them highly suitable for membrane distillation and membrane crystallization applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zhan Li, Pengfei Zhang, Kecheng Guan, Tomohisa Yoshioka, Hideto Matsuyama
Summary: Vacuum membrane distillation (VMD) is an important technology for the production of high-purity water. Researchers have modified the membrane to improve its performance, resulting in increased water flux and improved hydrophobic properties.
Article
Engineering, Environmental
Bahareh Rahmaniyan, Toraj Mohammadi, Maryam Ahmadzadeh Tofighy
Summary: In this study, PVDF/TNTs MMMs were prepared with modified TNTs to improve VMD performance, enhancing water flux and salt rejection. Optimization of operating parameters further increased membrane performance, showing potential for successful application in membrane distillation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Chang Li, Wenli Liu, Jiaming Mao, Liming Hu, Yanbin Yun, Bang Li
Summary: This study focused on the modification of membranes to enhance their resistance to fouling and wetting in vacuum membrane distillation (VMD). The modified superhydrophobic membranes exhibited stable flux and excellent anti-wetting and anti-fouling performance, indicating great potential for long-term practical applications in VMD.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Maryam Alqaydi, Musthafa O. Mavukkandy, Ibrahim Mustafa, Aaesha Alnuaimi, Hassan A. Arafat, Faisal Almarzooqi
Summary: The air gap membrane distillation process utilizing PVDF-AC composite membranes shows great potential for efficient and environmentally friendly desalination using solar energy, with enhanced energy efficiency and excellent salt rejection performance.
Article
Engineering, Environmental
Mitra Bahrami Eynolghasi, Toraj Mohammadi, Maryam Ahmadzadeh Tofighy
Summary: For the first time, hydrophobic carbon nanotubes were used to fabricate polystyrene/CNTs mixed matrix membranes for vacuum membrane distillation application. The membranes exhibited increased porosity, average pore size, and improved mechanical properties compared to neat polystyrene membranes. The hydrophobicity and unique physicochemical properties of cyclohexanol-based CNTs improved the performance of the membranes in VMD application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Dong Zou, Longbo Xia, Ping Luo, Kecheng Guan, Hideto Matsuyama, Zhaoxiang Zhong
Summary: In this study, high-porosity PVDF-PSF membranes were prepared by dissolving PVDF and PSF polymer powders in PolarClean. The addition of PVDF nanoparticles on the membrane surface improved the hydrophobicity and liquid entry pressure of the membrane. These membranes exhibited high water flux and excellent desalination performance.
Article
Engineering, Chemical
Justin Caspar, Guanyang Xue, Alparslan Oztekin
Summary: This study utilizes a validated CFD model to simulate vacuum membrane distillation on a prototype scale. The results show that alterations in module design can improve performance, especially in turbulent flow regimes. Furthermore, mitigating axial temperature polarization using heat injection proves to be effective.
Article
Biochemistry & Molecular Biology
Weikun Paul Li, Aung Thet Paing, Chin Ann Chow, Marn Soon Qua, Karikalan Mottaiyan, Kangjia Lu, Adil Dhalla, Tai-Shung Chung, Chakravarthy Gudipati
Summary: The novel tri-bore polyvinylidene difluoride (PVDF) hollow fiber membranes were successfully scaled-up for industrial production and optimized for large-scale processes. After assembly into different length modules, the membranes showed high permeate flux and salt rejection rates in membrane distillation applications.
Article
Engineering, Chemical
Jingtong Yu, Dongmin Yue, De Sun, Bingbing Li, Yanxia Ge, Yuanhang Lin
Summary: In this study, a photothermal composite membrane with CuO/CF photothermal active-layer and PVDF microporous hydrophobic separation layer was designed. This membrane achieved high photothermal conversion efficiency and permeate flux by converting solar energy into distilled water through photothermal effect.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Ahmad Bamasag, Talal Alqahtani, Shahnawaz Sinha, Noreddine Ghaffour, Patrick Phelan
Summary: A solar-heated submerged vacuum membrane distillation (S-VMD) system is proposed to reduce temperature and concentration polarizations; daily performance tests show that the system can achieve different fluxes under different solar intensities; the system ensures stable flux and excellent water quality over a long-term operation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Pedram Mohammadi Esfarjani, Hossein Fashandi, Mehdi Karevan, Ahmad Moheb
Summary: Water scarcity is a global issue, and water desalination has been proposed as a viable solution. In this study, PVC membranes were fabricated using a distillation technique for water desalination. Various parameters in the membrane production process were adjusted to optimize the PVC membrane morphology for vacuum membrane distillation (VMD), showing a significant influence on membrane performance. By altering the PVC concentration in the casting solution, membranes with suitable macrovoids and cellular pores can be produced, balancing membrane flux and liquid entry pressure for optimal VMD performance. Additionally, the study found that operational parameters during VMD can affect membrane flux positively without impacting salt rejection, highlighting the importance of PVC concentration in membrane production.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Hongyan Xu, Hailiang Liu, Yan Huang, Changfa Xiao
Summary: A novel tubular polyvinyl chloride (PVC) hybrid nanofiber membrane with three-dimensional structure interwoven by three-dimensional microspheres and two-dimensional nanofibers was fabricated via electrospinning process. The membrane showed excellent liquid separation efficiency and hydrophobicity, making it suitable for separation of various water-in-oil emulsions.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Hailiang Liu, Yueming Liu, Yang Qin, Yan Huang, Kaikai Chen, Changfa Xiao
Summary: The amphiphilic PVC-g-PPEGMA/PTFEMA graft copolymer membrane, designed and synthesized through free radical polymerization, demonstrates excellent antifouling properties and long-term hydrophilic stability due to the synergistic effect of hydrophilic and low surface energy segments.
APPLIED SURFACE SCIENCE
(2021)
Article
Polymer Science
Jingjing Yan, Changfa Xiao, Yan Huang, Tai Zhang
Summary: The addition of graphene (GE) in PVDF composite fibers, followed by post-stretching, can enhance the beta crystal content and properties of the fibers. GE improves crystal content and orientation, as well as mechanical properties, hydrophobicity, and oleophilicity. Proper post-stretching ratio contributes to crystal phase transition and performance enhancement.
POLYMER INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Shulin Yang, Changfa Xiao, Yan Huang, Dawei Ji, Kaikai Chen
Summary: In this study, HDPE membranes with improved hydrophilicity and uniform pore size distribution were successfully prepared through thermal induced phase separation. The addition of specific additives and the adjustment of coagulation bath temperature were found to significantly affect the performance of the membranes. The prepared HDPE membranes showed high pure water flux, high rejection ratio for carbon ink particles, and excellent stability and corrosion resistance.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Chemical
Jinxue Cheng, Naijia Zhao, Yuxin Zhang, Yan Huang, Qinglin Huang, Changfa Xiao
Summary: Uniform-sized core-shell microspheres have been fabricated using a facile method combining membrane emulsification technology and solvent evaporation method. The size of the core and shell of the PMMA@PLA microspheres can be controlled by using specific hydrophobic and hydrophilic PTFE membranes. The optimal morphology and size distribution of the microspheres were achieved at a solvent evaporation temperature of 40 °C. This method has great potential for the efficient preparation of uniform-sized core-shell microspheres on a large scale.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Mengdi Xu, Jinxue Cheng, Xiongfei Du, Qiang Guo, Yan Huang, Qinglin Huang
Summary: This study developed an amphiphobic PTFE nanofibrous membrane with enhanced anti-wetting and anti-fouling properties, showing stable flux and excellent salt rejection in MD process. The membrane exhibited strong water and oil repellency and demonstrated good stability and reusability, suggesting promising application prospects, especially in harsh environments.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Jinxue Cheng, Naijia Zhao, Yan Huang, Changfa Xiao, Xiao Ma, Qinglin Huang
Summary: A novel near-field electrospun poly(tetrafluoroethylene) (PTFE) membrane with ordered rectangular pore geometry was proposed in this study to obtain more homogeneous and stable water-in-oil emulsions. The droplet size was controlled by the membrane pore size, and the PTFE membrane with a unique rectangular pore geometry was more conducive to the formation of droplets with narrow size distribution. The results also showed that the introduction of shear stress in the continuous phase and the choice of emulsifier content played a role in regulating the droplet size.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Chemical
Zhe Zhai, Kuo Chen, Hao Yang, Yan Huang, Hongling Lan, Xingming Jie, Q. Jason Niu, Yuchao Zhao
Summary: In this study, a patching strategy was employed to fabricate a polyarylate-polyamide hybrid nanofiltration membrane with improved ionic rejection and high permeance. The membrane exhibited excellent anti-compression ability and long-term stability. The study also calculated the permeability of the membrane, which was among the most permeable nanofiltration membranes reported recently.
Review
Engineering, Chemical
Qiang Guo, Yan Huang, Mengdi Xu, Qinglin Huang, Jinxue Cheng, Shiwen Yu, Yuxin Zhang, Changfa Xiao
Summary: This review provides an introduction to PTFE material and its applications, with particular emphasis on the preparation methods, control of membrane pore structure, and functionalization of PTFE porous membranes. The essential problems connected to the practical applications of PTFE porous membranes are highlighted, and a future research perspective is provided.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Xiaozhen Liu, Changfa Xiao, Hang Deng, Tai Zhang, Yan Huang
Summary: This study focuses on the mass transfer in hydrophobic PVDF and FEP hollow fiber membranes, using a combination of experiments and computational fluid dynamics (CFD) model. The experiments consider a wider range of viscosity and surface tension, a larger span of operation temperature, and longer usage time. The membranes were characterized for various properties, and numerical simulations were performed to examine the effects of wettability, viscosity, and pore size on mass transfer. The simulations agree well with the experimental results. Overall, this study provides new insights and reference data for the use of fluoropolymers membranes in non-aqueous solutions, especially high viscosity oil.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Materials Science, Composites
Yan Huang, Qiang Guo, Yuxin Zhang, Fuxin Qiu, Xuancheng Zhang, Guanghui Wang, Jian Zhao, Qinglin Huang, Changfa Xiao
Summary: In this study, a PTFE porous membrane with high modulus and structural stability was designed and achieved by coelectrospinning PAN into PTFE matrix. The effects of OPAN nanofibers' content and diameter on the morphology and structure of the PTFE/OPAN composite nanofiber membrane were investigated. The results showed that the introduction of OPAN nanofibers effectively improved the modulus and structural stability of the PTFE nanofiber membrane.
COMPOSITES COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Yan Huang, Mengdi Xu, Qiang Guo, Wenqi Xie, Jingcheng Shu, Xiongfei Du, Fuxin Qiu, Siqi Huang, Qinglin Huang
Summary: Polytetrafluoroethylene (PTFE) is a robust membrane material that can withstand harsh environments. In this study, PTFE membranes with high separation accuracy were designed by tailoring the electrospinning/electrospraying process and calendaring conditions. This strategy allows for the controllability of pore structures and avoids the use of organic solvents or lubricants, making it environmentally friendly. The PTFE membranes showed selective sequential separation property and can be used for energy-efficient and high-accuracy particle screening, solution recovery, and grading separation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Shulin Yang, Changjiang Wu, Dawei Ji, Zhenyu Xi, Kaikai Chen, Xinmiao Zhang, Shaohua Li, Yan Huang, Changfa Xiao
Summary: The mechanical strength of membranes in wastewater treatment applications often falls short of practical requirements. In this study, reinforced polyethylene (BR PE) hollow fiber membranes were successfully prepared using fiber braided tube reinforcement and thermal-induced phase separation methods. The heat treatment temperature was found to significantly impact the membrane's structure and properties, with higher temperatures leading to improved tensile strength and interfacial bonding state. Additionally, increasing the heat treatment temperature resulted in smaller membrane pore size and enhanced filtration performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Haizhou Liu, Ying Xu, Kang Yang, Haiyang Yong, Yan Huang, Dong Han, Xiuping Hong, Qiaowen Yang
Summary: This study developed a green method to prepare a skin-like electromagnetic interference (EMI) shielding material composed of metal copper/carbon nanotubes/graphene paper. The material demonstrated low thermogenesis and high energy absorption efficiency during EMI shielding. Furthermore, when combined with polydimethylsiloxane and carbon nanotubes/graphene foam, the composites showed a high shielding effectiveness at 8.2 GHz.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Engineering, Environmental
Kaixuan Sun, Yifei Tang, Yan Huang, Yuchao Zhao, Xingming Jie, Yabin Zhang, Qinglin Huang
Summary: In this study, polyimide nanofibrous membranes with controllable pore structures and excellent hydrophobicity were successfully fabricated. These membranes were applied to oil-water separation and showed high separation efficiency and oil flux.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)
