Article
Engineering, Chemical
Mohammed Abdul Azeem, Dahiru Umar Lawal, Hasan Al Abdulgader, Turki N. Baroud
Summary: In this study, a simple and cost-effective method for fabricating a superhydrophobic PVDF membrane was reported. The PVDF membrane with sandpaper-like texture was successfully developed using different casting substrates and a non-solvent induced phase separation process. The PDMS-based textured membrane showed excellent membrane distillation performance.
Article
Engineering, Chemical
Xuhui Hu, Xing Chen, Mattia Giagnorio, Chunhong Wu, Yunbai Luo, Claus Helix-Nielsen, Ping Yu, Wenjing Zhang
Summary: A new class of PVDF-based membranes suitable for membrane distillation was prepared via electrospinning. By tuning the solvent ratio and operating parameters, the classical fiber morphology of PVDF electrospun membranes was changed to generate a beaded structure. Increasing the bead density improved the water contact angle and reduced the membrane thickness, but decreased the membrane mechanical stability. Simultaneous deployment of 17 and 25 wt% of PVDF solutions in a double-needle electrospinning device enabled the fabrication of electrospun PVDF-beaded membranes with high hydrophobicity, low thickness, and good mechanical stability for membrane distillation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
N. A. Zakaria, S. Q. Zaliman, C. P. Leo, A. L. Ahmad, B. S. Ooi, Phaik Eong Poh
Summary: This study uses carbon black to improve the surface properties of polyvinylidene fluoride (PVDF) membrane in membrane distillation, resulting in a superhydrophobic surface. The addition of carbon black changes the pore structure and surface roughness of the membrane, enhancing its resistance to wetting. Through electrochemical cleaning, the membrane can restore its permeate flux. These findings are of great significance for the further development of membrane distillation technology.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Jiuyang Lin, Jiale Du, Shuangling Xie, Fan Yu, Shengqiong Fang, Zhongsen Yan, Xiaocheng Lin, Dong Zou, Ming Xie, Wenyuan Ye
Summary: In this study, a superhydrophobic membrane was constructed via spray-coating of hydrophobic SiO2 nanoparticles onto a PVDF substrate. The coated membrane exhibited excellent physicochemical stability and overcame membrane wetting and fouling during membrane distillation. The results provide a useful concept and strategy for designing robust superhydrophobic membranes for membrane distillation.
Article
Engineering, Chemical
N. A. Zakaria, S. Q. Zaliman, C. P. Leo, A. L. Ahmad, B. S. Ooi, Phaik Eong Poh
Summary: In this study, the addition of PMMA, carbon black, and/or conductive ink improved the morphology and electrochemical properties of PVDF membranes, resulting in high permeate flux and stable salt rejection in membrane distillation.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Chemical
Guangming Tan, Di Xu, Zhigao Zhu, Xuan Zhang, Jiansheng Li
Summary: In this study, superhydrophobic nanofibrous membranes with tailored membrane pore size and interface were successfully fabricated. By reducing the membrane pore size and increasing the interface evaporation area, membrane scaling was mitigated and water flux was improved. The use of antiscalant further increased water recovery and concentration performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Fan Yang, Xingyu Zhao, Tiantian Xue, Shijia Yuan, Yunpeng Huang, Wei Fan, Tianxi Liu
Summary: In this study, a superhydrophobic and compressible PVDF/PI nanofiber composite aerogel with excellent thermal insulation performance was successfully fabricated, demonstrating low thermal conductivity even in high humidity and high temperature conditions.
SCIENCE CHINA-MATERIALS
(2021)
Article
Engineering, Environmental
Jiaqi Hu, Hesam Bazargan Harandi, Yecang Chen, Liwei Zhang, Huabing Yin, Tao He
Summary: Membrane distillation technology is often used to treat high salinity waste streams, but mineral scaling remains a major challenge. This study investigates the scaling resistance of hydrophobic membranes with different surface structures and reveals the impact of flow direction on scaling resistance.
Article
Engineering, Chemical
Han Cao, Yanpeng Mao, Wenlong Wang, Yang Jin, Yibo Gao, Miaomiao Zhang, Xiqiang Zhao, Jing Sun, Zhanlong Song
Summary: By controlling the particle size of ZIF-8, a superhydrophobic membrane with dual scale hierarchical rough structure was prepared on PTFE substrates through the spray method. The water contact angle of the superhydrophobic surface reached 165.5 degrees under optimized experimental conditions. The membrane distillation experiments showed that the superhydrophobic membrane had excellent permeate flux compared to commercial PTFE membrane. This research provides a promising strategy for preparing superhydrophobic membranes and expands the possibility of using MOF as a superhydrophobic coating.
Article
Engineering, Chemical
Mohammad Nasiraee, Seyed Mahmoud Mousavi, Ehsan Saljoughi, Shirin Kiani, Kourosh Razmgar
Summary: Membrane distillation crystallization (MDC) was used for the first time to obtain calcium nitrate crystals from its aqueous solution, with the addition of Span 85 to improve membrane hydrophobicity and enhance water flux and crystal production.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Engineering, Chemical
Hamid Fattahi Juybari, Mohammad Karimi, Rishabh Srivastava, Jaichander Swaminathan, David M. Warsinger
Summary: The study developed the first superhydrophobic composite electrospun asymmetric membrane using fluorinated graphite (FG). The membrane's asymmetric structure and composite coatings improved its performance. This membrane, with high contact angle, low sliding angle, high permeability, and high gained output ratio (GOR), is a promising choice for sustainable membrane distillation.
Article
Engineering, Chemical
M. Essalhi, M. Khayet, A. B. Yavuz, L. R. de la Rosa, M. C. Garcia-Payo, N. Tavajohi
Summary: The study incorporated Lycopodium particles into PVDF nanofiber membranes to create superhydrophobic membranes. These membranes showed improved liquid entry pressure, high void volume fraction, good salt rejection factor, and reasonably high permeate flux, making them suitable for water desalination.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Chenghan Ji, Zhigao Zhu, Lingling Zhong, Weiming Zhang, Wei Wang
Summary: A novel fibrous membrane with firm-pore structure and superhydrophobic surface has been designed to improve membrane durability and efficiency in membrane distillation, making it suitable for high salinity wastewater treatment. The formation of firm pores and superhydrophobic surface play crucial roles in enhancing membrane performance.
Article
Polymer Science
Duy Linh Vu, Chau Duy Le, Kyoung Kwan Ahn
Summary: A liquid-solid triboelectric nanogenerator (TENG) using polyvinylidene fluoride surface polarization enhancement (PSPE) is proposed for self-powered streamflow sensing. The TENG has high output and can simultaneously monitor multiple parameters of the streamflow with minimal error detection.
Article
Engineering, Chemical
Renwei Zhang, Wenyong Tang, Haifu Gao, Chunrui Wu, Stephen Gray, Xiaolong Lu
Summary: Superhydrophobic PVDF membrane with micro-nano structures was prepared by adding NaCl-H2O to the casting solution, leading to high water contact angle and increased DCMD flux. NaCl crystals acted as nuclei, accelerating the crystallization of PVDF chains and forming a stable superhydrophobic structure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Huihui Zhao, Linyan Yang, Xueming Chen, Jinrui Wang, Lichun Bai, Guomin Cao, Lankun Cai, Chuyang Y. Tang
Summary: Polyamide (PA) membranes used in reverse osmosis and nanofiltration can be degraded by bromination under chlorinated bromide-containing water conditions. This study addresses the misconception that only hypobromous acid (HOBr) is responsible for membrane degradation, while other more reactive but less abundant brominating agents are often overlooked. The findings show that the rate of membrane degradation is strongly correlated with bromide, chloride, and hypochlorous acid concentrations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yangbo Qiu, Sifan Wu, Lei Xia, Long-Fei Ren, Jiahui Shao, Jiangnan Shen, Zhe Yang, Chuyang Y. Tang, Chao Wu, Bart Van der Bruggen, Yan Zhao
Summary: The papermaking industry generates large amounts of wastewater and waste gas, and their treatment often involves the use of chemicals, lacks resource recovery, and consumes high amounts of energy. In this study, a chemical self-sufficiency zero liquid discharge (ZLD) system called NF-BMED-MC was designed to recover resources from papermaking wastewater and waste gas. This integrated system has shown great synergy by utilizing nanofiltration, bipolar membrane electrodialysis, and membrane contactor technologies. It enables the recovery of NaCl, generation of HCl/NaOH, and CO2 capture, while achieving efficient water recovery and resource purification without the need for additional chemicals. The study also demonstrates the potential of NF-BMED-MC as a sustainable alternative for the ZLD treatment of papermaking industry discharges.
Article
Chemistry, Multidisciplinary
Hao Liu, Bo Li, Pin Zhao, Rongming Xu, Chuyang Y. Tang, Weilong Song, Zunaira Habib, Xinhua Wang
Summary: This study designed an interlayered thin-film composite forward osmosis membrane with an ultrathin and porous interlayer, which enhanced water permeability and reduced reverse sodium flux. The membrane maintained high stability and permeability under high salinity and contaminated environment.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Chemical
Dong Wang, Na Zhang, Jiaojiao Zhang, Yuyao Qin, Sen Wang, Chuyang Y. Tang, Zhining Wang
Summary: This study presents a simple and versatile method to prepare novel polyamide nanofiltration membranes via a hydrogel-assisted interfacial polymerization process. The diffusion of piperazine was precisely controlled by adjusting the hydrogel composition and crosslinking degree, resulting in the formation of a thin film composite membrane with improved water permeance and Na2SO4 rejection due to the synergistic effect of decreased thickness and improved surface hydrophilicity.
Article
Engineering, Chemical
Ying Mei, Zhe Yang, Peng-Fei Sun, Shenghua Zhou, Hao Guo, Lu Elfa Peng, Zhikan Yao, Wulin Yang, Chuyang Y. Tang
Summary: We proposed a facile method of using polyelectrolyte additive to tune interfacial polymerization reaction and tailor polyamide NF membrane with better separation performance and lower bio-fouling potential for groundwater treatment. The fabricated TFC-P6 membrane possessed enhanced water permeance and better selectivity which can be beneficial to achieve higher water recovery compared to the control TFC membrane. In addition, the TFC-P6 membrane demonstrated enhanced rejection of perfluorooctane sulfonate and the biofouling was inhibited by its additional negative charge and smoother surface.
Article
Engineering, Chemical
Jaleh Mansouri, Shiyang Huang, Anthony Agostino, Rhiannon P. Kuchel, Greg Leslie, Chuyang Y. Tang, Anthony G. Fane
Summary: Understanding the kinetics of interfacial polymerization (IP) reaction is crucial for tailoring the characteristics and performance of reverse osmosis (RO) membranes. In this study, the kinetic behavior and film characteristics of polyamide (PA) film formation by IP reaction between M-phenylenediamine (MPD) and trimesoyl chloride (TMC) were investigated using the absorbance spectroscopy (AS) method in real-time. The results showed that monomer concentration and reaction time significantly influenced the kinetics of the IP reaction. The study confirmed the potential of the AS method for predicting the characteristics and optimizing the conditions of IP to achieve customized RO and nanofiltration (NF) membranes.
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
Automation & Control Systems
Zhihong Yan, Ying Huang, Siew-Chong Tan, Chuyang Y. Tang, Shu Yuen Hui
Summary: In this article, a self-adaptive-step-size incremental-resistance MPPT technique is proposed to extract maximum power from RED stacks. It is simple and easy to implement, and realizes a balance between fast dynamic responses and small oscillations at a steady state. Various tests are conducted to validate the effectiveness of the proposed MPPT technique.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Chemical
Yajie Ding, Nianxiang Qiu, Jianqiang Wang, Zhe Yang, Fu Liu, Chuyang Y. Tang
Summary: We report a membrane for oil-water separation with anomalous wettability constructed by sub-10 nm Tween 80 assembly on hydrophobic PVDF nanofibers, providing separate passageways for water and oil. Water freely passes through the membrane along the hydrophilic nanofiber surface, while emulsified oils are diverted beneath the ultra-thin hydrophilic layer and discharged as continuous macroscopic oil phase. After continuously filtering oil-in-water emulsions for 10 hours, the membrane showed stable permeate flux as high as 536 ± 40 L m-2 h-1 bar- 1. The conformation assembly of surfactants provides a new strategy for fabricating anti-fouling membranes for oil/water separation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Lei Han, Liguo Shen, Hongjun Lin, Tinghai Cheng, Jianming Wen, Qianqian Zeng, Yanchao Xu, Renjie Li, Meijia Zhang, Huachang Hong, Chuyang Tang, Zhong Lin Wang
Summary: This study developed an eco-friendly acrylonitrile-butadiene-styrene (ABS) membrane using three-dimensional (3D) printing technology and modified it through an eco-friendly plasma strategy. The modified membrane exhibited excellent hydrophilicity and oleophobicity, achieving a water contact angle of 8.8 degrees and underwater oil contact angle of 137.6 degrees. The membrane showed an ultra-high flux of 1.17 x 10(5) L·m(-2)·h(-1) with 99.60% rejection for five typical oil/water systems, and maintained a rejection rate of 99.40% after 100 cycling tests over a four-month period, demonstrating superior stability and recyclability. This membrane outperformed all the state-of-the-art membranes for oil/water separation and introduced a new approach for membrane fabrication.
Article
Materials Science, Ceramics
Mengxuan Tao, Jiangtao Feng, Ruizhu Li, Chengzhi Guan, Jianqiang Wang, Bo Chi, Jian Pu
Summary: In this study, a 64SiO2-18TiO2-10Na2O-7K2O-1Al2O3 (wt%) glass was used as a seal in zirconium dioxide oxygen sensor instead of traditional talcum. The glass showed good interfacial compatibility with adjacent components and thermal cycle stability. It exhibited better wettability and tight bonding at the interface with a contact angle below 60 degrees at high temperature. The leakage rates between glass and Fe-16Cr alloy were also low, making the glass a suitable alternative for oxygen sensor sealing.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Chemical
Peng-Fei Sun, Pulak Sarkar, Eun-Tae Yun, Jeong Hoon Lee, Chuyang Y. Tang, Hee-Deung Park
Summary: Biofouling is a critical issue in membrane-based water treatment processes. A thin-film nanocomposite membrane with a multilayer structure consisting of an MXene/CNT interlayer and a CNT back layer was fabricated to mitigate biofouling. The CNT back layer possessed superior antibiofilm properties and effectively prevented bacteria from entering the porous substrate, resulting in excellent resistance to biofouling.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Environmental Sciences
Zixiao Ren, Huicong Shi, Jie Zeng, Xu He, Guibai Li, Huu Hao Ngo, Jun Ma, Chuyang Y. Y. Tang, An Ding
Summary: Viruses in the effluent and on the membrane during UF processes pose hidden biosecurity risks to drinking water. Fe3+ coagulation combined with H2O2 creates an in situ membrane cleaning method, and MS2 bacteriophage was used to investigate virus removal in the presence of humic acid (HA). The study found that HA removed MS2 based on size exclusion, hydrophobicity, and electrostatic repulsion, while Fe3+ pretreatment eliminated MS2 by iron floc adsorption and size exclusion, and iron flocs-H2O2 cleaning completely eliminated MS2. The study provides a potentially useful and cost-saving membrane cleaning method for virus-containing water treatment.
Article
Engineering, Chemical
Ke Jiang, Li Long, Lu Elfa Peng, Zhe Yang, Wenyu Liu, Dong-Myeong Shin, Chuyang Y. Tang
Summary: Polyamide structure and chemistry are crucial for the separation performance of thin-film composite nanofiltration membranes. By regulating reactive sites on monomers, the properties of polyamide and membrane performance can be precisely tailored, resulting in improved water permeance and solute selectivity. This study provides new insights into developing high-performance nanofiltration membranes.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Li Wang, Meng Zhang, Yufei Shu, Qi Han, Beizhao Chen, Bei Liu, Zhongying Wang, Chuyang Y. Tang
Summary: This study presents a new approach for efficient and selective dye recovery from highly saline textile waters using Co-MOF nanosheet membranes. The membranes exhibit superior permeance and selectivity due to their precisely regulated in-plane pore sizes. The Co-MOF membranes have high selectivity for salts over dye and exhibit excellent pure water permeance and high rejection of dyes. The in-plane pores on the nanosheets are responsible for the remarkable permeability and selectivity of the 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)