Article
Engineering, Environmental
Christine N. Matindi, Sania Kadanyo, Gansheng Liu, Mengyang Hu, Yunxia Hu, Zhenyu Cui, Xiaohua Ma, Feng Yan, Benqiao He, Jianxin Li
Summary: Polyethersulphone/sulfonated polysulfone/TiO2 ultrafiltration mixed matrix membranes were coated with a hybrid layer composed of branched polyethyleneimine and TiO2 nanoparticles crosslinked by glutaraldehyde to enhance its stability. The effect of TiO2 nanoparticles loadings on the thickness, surface wettability, surface charge and molecular weight cut-off was investigated. The modified membranes showed improved rejection of oil-in-water emulsions and enhanced pure water permeance.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Chemical
Lei Qiao, Hui Ye, Qingping Xin, Lilan Huang, Yuzhong Zhang, Hong Li
Summary: A sulfonated polyethersulfone/functionalized graphene membrane has been developed for hardness removal using a simple and efficient 'one-pot' method. The membrane showed excellent adsorption performance and antifouling property, making it a promising candidate for water treatment applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jingjing Zhang, Shouwen Chen, Jiansheng Li, Weiqing Han, Xiuyun Sun, Na Li, Zhaoxia Hu, Lianjun Wang
Summary: The novel highly hydrophilic nanocomposite additive, sulfonated carbon nano onion (SCNO), was synthesized and incorporated into polyethersulfone (PES) to fabricate high-performance nanocomposite ultrafiltration (UF) membranes. The addition of SCNO nanoparticles enhanced the hydrophilicity, permeability, and antifouling properties of the PES-based UF membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Leila Denise Fiorentin-Ferrari, Kamila Mayara Celant, Bruna Cristina Goncalves, Sarah Mayane Teixeira, Veronice Slusarski-Santana, Aparecido Nivaldo Modenes
Summary: This study focused on fabricating polymeric membranes from the phase inversion technique for the treatment of fish skin dye tanning effluent. The membranes showed anisotropic characteristics and the addition of polyethersulfone (PES) increased hydrophilicity and porosity. Regardless of composition, the membranes exhibited high rejection of BSA and removal efficiency of chemical oxygen demand.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biotechnology & Applied Microbiology
Eid H. Alosaimi, Hassan M. A. Hassan, Ibrahim Hotan Alsohaimi, Qiao Chen, Saad Melhi, Ayman Abdelaziz Younes, Walaa H. El-Shwiniy
Summary: By incorporating ZnO nanoparticles modified with polysulfopropyl acrylate into the membrane, the composite membrane demonstrates significantly improved water flux, maintained high rejection rate towards natural organic matter, enhanced long-term fouling resistance, and excellent recyclability.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Biochemistry & Molecular Biology
Muhammad Irfan, Masooma Irfan, Ani Idris, Abdullah Saad Alsubaie, Khaled H. Mahmoud, Noordin Mohd Yusof, Naeem Akhtar
Summary: Commercial grade sulfonated-Polyethersulfone (S-PES) and functionalized multiwall carbon nanotube (f-MWCNT)/polyvinylpyrrolidone (PVP) nanocomposites (NCs) were used to enhance and optimize the antifouling, protein resistance and protein separation properties of the S-PES ultrafiltration membranes. The binding forces between the different functional groups greatly reduced the leaching of nanocomposites and developed long finger-like projections. The NCs/S-PES membranes showed impressive flux recovery ratio and reversible resistance values, with reduced protein adsorption. The best performing membrane exhibited high removal rates for proteins of different molecular weights.
Article
Engineering, Chemical
Eid H. Alosaimi, Ibrahim Hotan Alsohaimi, Hassan M. A. Hassan, Qiao Chen, Saad Melhi, Ayman Abdelaziz Younes
Summary: A series of sulfonated polyethersulfone (SPES) membranes containing different concentrations of SBA-15-g-PSPA were fabricated using a non-solvent induced phase separation (NIPS) process for ultrafiltration (UF) applications. SBA-15 was modified with 3-methacrylate-propyltrimethoxysilane (MPS) and further functionalized with charge tailorable polymer chains. The addition of surface modified SBA-15-g-PSPA nanoparticles significantly improved the membrane's water permeability, hydrophilicity, and antifouling properties. The composite SPES membranes exhibited higher pure water fluxes compared to the pristine SPES membrane, with the inclusion of SBA-15-g-PSPA nanoparticles showing promising potential for ultrafiltration applications.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Civil
Farzad Boroumand, S. M. Hossein Seyedkashi, M. Hossein Pol
Summary: In this study, the tensile and flexural behavior of metal-nanocomposite laminates under different loading conditions were investigated. The effects of adding different weight percentages of MWCNTs on the mechanical properties of the laminates were evaluated. The results showed that the addition of up to 1 wt% of MWCNTs increased the tensile and flexural strengths, but further addition led to a decrease in strength due to aggregation and agglomeration of MWCNTs.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Chemical
Christine N. Matindi, Mengyang Hu, Sania Kadanyo, Quang Viet Ly, Nozipho N. Gumbi, Derrick S. Dlamini, Jiaye Li, Yunxia Hu, Zhenyu Cui, Jianxin Li
Summary: PES/SPSf/TiO2 mixed matrix membranes were fabricated for oil-in-water emulsion separation using non-solvent induced phase inversion technique. The addition of TiO2 nanoparticles and variation of polymer concentrations resulted in membranes with excellent water permeability, oil rejection, and permeance recovery rate. Molecular dynamic simulations and spectroscopic analyses showed that the TiO2 NPs formed hydrogen bonds with polymer chains, leading to desirable morphological changes in the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Mengyang Hu, Zhenyu Cui, Shuqian Yang, Jiaye Li, Wenxiong Shi, Wei Zhang, Christine Matindi, Benqiao He, Kuanjun Fang, Jianxin Li
Summary: The addition of Sulfonated polysulfone (SPSf) and water as additives using non-solvent induced phase separation (NIPS) can enhance the permeance and separation performance of polyethersulfone (PES) membrane for dye/salt mixture.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Parashuram Kallem, Yazan Ibrahim, Shadi W. Hasan, Pau Loke Show, Fawzi Banat
Summary: The novel environmental-friendly sulfonated functionalized polydopamine (SPDA) nanocomposite synthesized as a nanofiller for ultrafiltration (UF) membranes significantly enhances water permeability and antifouling properties. The results demonstrate that incorporating SPDA nanofillers has great potential to improve the performance of polyethersulfone (PES) membranes in wastewater treatment applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Olawumi O. Sadare, Michael O. Daramola
Summary: A robust blended PSF/PES membrane was fabricated and shown to have great potential in the separation of biobased succinic acid. The membrane exhibited good performance in separating succinate, formate, and acetate from synthetic fermentation broth under different process conditions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
J. Kavitha, Nagaraj S. Naik, A. R. Phani, G. Arthanareeswaran, M. Rajalakshmi, Mahesh Padaki
Summary: This study attempts an innovative modification approach by incorporating modified titanium nanotubes (m-TNT) into polysulfone (PSf) membranes for salt rejection studies. The results show that the m-TNT as a nanofiller improves the membrane perviousness by decreasing contact angle, increasing surface charge and hydrophilicity. The m-TNT/PSf nanotube composite membrane exhibits good salt rejection performance and is suitable for membrane desalination applications.
Article
Environmental Sciences
Ismail W. Almanassra, Lubna Jaber, Sumina Namboorimadathil Backer, Anjaneyulu Chatla, Viktor Kochkodan, Tareq Al-Ansari, Abdallah Shanableh, Muataz Ali Atieh
Summary: In this study, carbide-derived carbon (CDC) oxidized by acid treatment was used as a filler to fabricate a novel polyethersulfone (PES) composite ultrafiltration (UF) membrane. The oxidation of CDC resulted in increased oxygen content and improved hydrophilicity of the modified PES membranes. The addition of oxidized CDC significantly improved membrane porosity, pore size, water flux, antifouling characteristics, and adsorption capacity, as well as the stability and reusability of the membranes.
Article
Engineering, Chemical
Sania Kadanyo, Christine N. Matindi, Nozipho N. Gumbi, Derrick S. Dlamini, Yunxia Hu, Zhenyu Cui, Benqiao He, Bhekie B. Mamba, Jianxin Li
Summary: Controlled formation of mixed matrix membranes (MMMs) without macrovoids was achieved through non-solvent-induced phase separation (NIPS), leading to improved mechanical strength and hydrophilicity. The addition of Halloysite nanotubes (HNTs) and poly (ethylene-co-vinyl alcohol) (EVOH) to polysulfone (PSF) with polyethylene glycol (PEG) resulted in the formation of PSF/EVOH-MMMs with a spongy structure, demonstrating strong hydrogen bonding interactions. The incorporation of 0.12 wt.% HNTs in MMMs increased the mechanical strength by 2.2-fold and achieved the lowest contact angle of 47.42 +/- 1.9 degrees.
Article
Materials Science, Multidisciplinary
Lu Gao, Nan Wu, Nanping Deng, Zhenchao Li, Jianxin Li, Yong Che, Bowen Cheng, Weimin Kang, Ruiping Liu, Yutao Li
Summary: Researchers improved the performance of solid-state Li-metal batteries by introducing Gd-doped CeO2 nanowires to the polymer electrolyte. The optimized composite polymer electrolyte has high ion conductivity and transference number, and exhibits good compatibility with the metallic lithium anode and high-voltage cathode.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Environmental
Mengyao Wang, Ji Chen, Jiaye Li, Jinzhao Wang, Hongwei Xie
Summary: Acoustic stimulation of rainfall is a low-cost and convenient method to secure water resources. Field experiments conducted in the Tibetan Plateau showed that the effectiveness of acoustic enhancement of rainfall is influenced by rainfall duration and the number of cloud droplets.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2023)
Article
Materials Science, Multidisciplinary
Zhaohui Yin, Kun Zhang, Na Ma, Xi Liu, Zhen Yin, Hong Wang, Xue Yang, Ye Wang, Xuetao Qin, Danyang Cheng, Yumei Zheng, Lili Wang, Jianxin Li, Zongwei Xu, Na Tang, Bowen Cheng, Dequan Xiao, Ding Ma
Summary: In this study, a robust electrochemical strategy with an efficient membrane electrode was developed for simultaneous removal of organic pollutants and production of pure hydrogen in wastewater. The obtained membrane electrode showed superior degradation performance and stable hydrogen production, with significantly reduced energy consumption.
SCIENCE CHINA-MATERIALS
(2023)
Article
Engineering, Environmental
Rui Zhang, Jiaye Li, Stephen Jerrams, Shui Hu, Li Liu, Shipeng Wen, Liqun Zhang
Summary: In this study, modified graphene oxide and silica were used to construct composite particles with bridged structures, which were then mixed with styrene butadiene rubber to improve the mechanical and abrasion resistance properties of the composite material.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jia-Ye Li, De-Yi Zhang, Sheng Mao, Huan Wang
Summary: Few single-molecule experiments have enabled real-time imaging of functional biomacromolecules in native liquid environments. Liquid phase electron microscopy (LP-EM) has shown promise due to its spatial and temporal resolution. Challenges remain in obtaining high-quality data, which may be improved through new liquid cell platforms and machine learning-based data analysis.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Letter
Geosciences, Multidisciplinary
Suning Liu, Ji Chen, Jiaye Li, Tiejian Li, Haiyun Shi, Bellie Sivakumar
Summary: With continued population growth in the future, construction of large dams is considered as one of the best options to meet the increasing demands for water, food, and energy. Selecting appropriate sites for these dams is crucial and should consider factors such as socioeconomic development, water resources availability, topographic characteristics, and environmental impacts. This study identifies the relationship between catchment area and slope of a river reach to evaluate the site selection for large dams.
GEOSCIENCE LETTERS
(2023)
Article
Materials Science, Composites
Rui Zhang, Jiaye Li, Zongchao Xu, Stephen Jerrams, Shui Hu, Li Liu, Shipeng Wen, Liqun Zhang
Summary: Rapid developments in international transportation lead to increased energy and resource consumption. Minimizing rolling resistance of tires is a pressing challenge, which requires improving the interaction and dispersion of fillers. In this study, a modified graphene oxide/natural rubber composite was created by introducing a modified graphene oxide masterbatch into solution-polymerized styrene butadiene rubber. The composite exhibited superior rolling resistance, reduced energy loss, improved wear performance, and wet skid resistance, indicating a strong interface and balanced tire properties.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Kopano Edward Mokubung, Lloyd Njoka Ndlovu, Woei Jye Lau, Edward Ndumiso Nxumalo, Nozipho Nonsikelelo Gumbi
Summary: This study fabricated mixed matrix membranes (MMMs) for ultrafiltration using 3-aminopropyltriethoxysilane modified magnetite iron oxide nanoparticles (A-Fe3O4 NPs) through a modified phase inversion technique. The physiochemical properties and surface morphologies of the synthesized A-Fe3O4 NPs and fabricated MMMs were examined using advanced characterization techniques. The incorporation of higher loadings of A-Fe3O4 NPs in the membrane matrix significantly improved the adsorptive ability and hydrophilicity of the adsorbent, leading to improved membrane water permeance, adsorption rate, and adsorption-filtration properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Nikan Mokarinezhad, Seyed Saeid Hosseini, Edward Ndumiso Nxumalo
Summary: This study reported an innovative approach for controlling the polymerization process in the fabrication of thin film composite reverse osmosis membranes. The results showed that using a solvent mixture of toluene and n-hexane as the organic phase at a temperature of 20℃ significantly improved the salt rejection to 98.6% with a flux of 16.1 LMH. However, increasing the temperature further to 30℃ was not beneficial for membrane fabrication.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Geriatrics & Gerontology
Mingming Deng, Qin Zhang, Liming Yan, Yiding Bian, Ruixia Li, Jinghan Gao, Yingxi Wang, Jinrui Miao, Jiaye Li, Xiaoming Zhou, Gang Hou
Summary: The plasma GHK levels were significantly decreased in COPD patients and were associated with skeletal muscle mass. GHK-Cu could protect against cigarette smoking-induced skeletal muscle dysfunction via activation of SIRT1, inhibition of protein degradation, reduction of oxidative stress, and promotion of mitochondrial function.
JOURNAL OF CACHEXIA SARCOPENIA AND MUSCLE
(2023)
Article
Engineering, Environmental
Ming Li, Xiwei Cao, Ziqing Wu, Jiaye Li, Ying Cui, Jun Liu, Baoan Li
Summary: This study investigated the denitrifying phosphorus removal process in a single-stage Membrane Aeration Biofilm Reactor (MABR). The results showed that without the addition of any flocculant or precipitant, the TINRE reached 99.79% and the TPRE reached 82.62% under specific influent conditions. The phosphorus content in the substrate sludge was higher than that in the initial biofilm or activated sludge. The presence of PAOs and DPAOs played pivotal roles in phosphorus removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Abera Demeke Ambaye, Munkombwe Muchindu, Abongile Jijana, Shivani Mishra, Edward Nxumalo
Summary: Screen-printed electrodes have been used for electrochemical sensing of nitrite in wastewater samples by immobilizing carbon black/copper metal-organic framework nanocomposites. The nanosensor exhibited a low limit of detection and quantification, a wide linear range, and excellent repeatability and reproducibility. It showed potential for monitoring nitrite in aquatic samples.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Fan Li, Matteo Rubinato, Tao Zhou, Jiaye Li, Chen Chen
Summary: This study examines the impact of the COVID-19 pandemic on small businesses in Wuhan, China. The results show that the survival rates of businesses affected by the pandemic is not significantly different from those unaffected. Additionally, businesses that had confidence in their abilities and implemented accurate evaluations of their strategies had a higher probability of survival. Actions such as reducing employees, transitioning operations online, and providing rent subsidies and tax reductions were crucial to maintaining businesses that experienced lockdowns. Governments should provide timely support to small businesses in regions with severe impacts, including grants, loans, and temporary tax cuts.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Computer Science, Artificial Intelligence
Shichao Zhang, Jiaye Li
Summary: KNN classification is a non-deterministic learning mode that requires setting a suitable K value and searching for the K nearest neighbors from the entire training sample space to make predictions. This paper proposes a one-step computation method to replace the lazy part of KNN classification by transforming it into a matrix computation. The method fits the training samples to the test data using the least squares loss function, generates a relationship matrix based on the influence of the training samples on the test data, and performs sparse learning using group lasso. A new classification rule is also proposed to improve the performance of one-step KNN classification. Experimental results demonstrate the efficiency and potential of this one-step KNN classification approach.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA 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)
