Article
Engineering, Chemical
Xu Jiang, Chong Yang Chuah, Kunli Goh, Rong Wang
Summary: High-efficient CO2 capture using membrane separation technology is a promising approach towards environmental redemption. A facile direct spray-coating method to fabricate Pebax (R) 1657 thin-film on a porous polysulfone (PSF) substrate simplifies the membrane fabrication process. The direct spray coated Pebax (R) 1657 membranes show great potential for large-scale CO2 capture applications with good separation performances.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Siraj Ahmad, Shaohan Lian, Yaxin Tan, Run Li, Quan Zhao, Chunfeng Song, Qingling Liu, Shijian Lu
Summary: The MMMs fabricated with NMP solvent showed competitive CO2 permeability and selectivity; the selection of solvent depends on factors such as molar volume, boiling point, and solubility parameters; operating temperature has a significant impact on gas transport properties, with a decrease in temperature resulting in increased selectivity for CO2/N-2 gases.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Jiangying Liu, Yang Pan, Jingyi Xu, Zhenggang Wang, Haipeng Zhu, Gongping Liu, Jing Zhong, Wanqin Jin
Summary: To achieve high separation efficacy of carbon dioxide, Pebax-based membranes have attracted intensive interest. An amphipathic copolymer polydimethylsiloxane(PDMS)-block-polyethylene oxide(PEO) was introduced into the intermediate layer to tune the interfacial adhesion, enabling fabrication of ultra-thin Pebax composite membrane. The strategy of using the amphipathic copolymer as an intermediate layer enhanced the composite membrane integrity and simplified the plasma pre-treatment, showing great potential in developing highly permeable membrane for efficient CO2 capture.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Fernando Pardo, Sergio Gutierrez-Hernandez, Paula Rodriguez-San Miguel, Gabriel Zarca, Ane Urtiaga
Summary: Difluoromethane (R-32), a hydrofluorocarbon (HFC), has been widely used as a primary component of refrigerant mixtures in refrigeration and air conditioning. The recovery of R-32 from depleted mixtures collected from end-of-life equipment is sought for synthesizing low-GWP refrigerant blends. Composite polymer/ionic liquid membranes based on poly-ether-block-amide have shown potential for separating R-32 from other fluorinated hydrocarbons. In this study, a spray coating technique was successfully applied to create defect-free thin selective layers of different coatings. The pilot results confirmed the superior performance and stability of [C2C1im] [SCN]-based membranes in recovering R-32 from refrigerant mixtures.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Danial Nobakht, Reza Abedini
Summary: This study investigates the improvement of CO2 separation performance by blending Pebax with multi-hydroxyl compounds, such as maltitol and mannitol. The results show that the highest CO2 permeability and selectivity are achieved with the Pebax/maltitol (20 wt%) blend membrane at a temperature of 30 degrees C and feed pressure of 10 bar.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Nor Akalili Ahmad, Pei Sean Goh, Kar Chun Wong, Stanley Chinedu Mamah, Ahmad Fauzi Ismail, Abdul Karim Zulhairum
Summary: In this study, an accelerated layer by layer (LbL) assembly based on spray-on technique was successfully used to modify the surface of a reverse osmosis (RO) thin film composite (TFC) membrane. The spray-coated TFC membrane showed excellent water permeability and anti-fouling properties.
Article
Engineering, Chemical
Chengli Jiao, Zedong Li, Xinxin Li, Mian Wu, Heqing Jiang
Summary: The nanosized PEI-ZIF-8 synthesized in the study plays a crucial role in improving the interfacial compatibility and CO2 permeance of the composite membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Nor Akalili Ahmad, Lih Jang Tam, Pei Sean Goh, Nurfirzanah Azman, Ahmad Fauzi Ismail, Khairulnadzmi Jamaluddin, Gangasalam Arthanareeswaran
Summary: In this study, a thin film composite (TFC) reverse osmosis (RO) membrane with high long-term stability and antifouling properties was developed by spray coating the polyamide (PA) layer with oppositely charged titania nanosheets (TNS). The manufactured membranes showed improved permeability and radionuclide rejection, making them suitable for treating radionuclide-containing wastewater. The findings highlight the potential of tailored TFC RO membranes in the treatment of radioactive wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Huanghe Li, Shenxiang Zhang, Bratin Sengupta, Huazheng Li, Fan Wang, Shiguang Li, Miao Yu
Summary: In this study, a polyethylenimine membrane stabilized by polystyrene sulfonate was designed and fabricated using a spray-coating method. The electrostatic stabilization of amine carriers in the membrane resulted in superior CO2 separation performance and long-term stability. The separation performance was further optimized, providing a new approach for the fabrication of highly efficient CO2 separation membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Polymer Science
Min Liu, Mitchell D. D. Nothling, Sui Zhang, Qiang Fu, Greg G. G. Qiao
Summary: This review provides an overview of trends in the materials science of thin film composite (TFC) membranes for CO2 capture from flue gas. It explores different materials and synthetic approaches and compares the performance and technical limitations of the latest TFC membranes. The outstanding challenges and opportunities for future research directions are also discussed.
PROGRESS IN POLYMER SCIENCE
(2022)
Article
Engineering, Chemical
Md Rafiul Hasan, Andoni Moriones, Magdalena Malankowska, Joaquin Coronas
Summary: This research focuses on the recycling of mixed matrix membranes (MMMs) consisting of fillers, such as metal organic frameworks (MOFs), in a polymer matrix. The recovered products were characterized and compared with the fresh ones, demonstrating that the recycled fillers can be successfully applied in MMMs with similar performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Mohammad Hadi Nematollahi, Pedro J. Carvalho, Joao A. P. Coutinho, Reza Abedini
Summary: Thin-film composite/nanocomposite (TFC/TFN) membranes are the latest version of carbon capture membranes and have excellent gas permeability, selectivity, cost-effectiveness, and the ability to manage the constituents of each layer separately. This study assessed the impact of Ag-BTC particles on the properties and gas permeation qualities of the TFC/TFN membranes. It was found that appropriate distribution of Ag-BTC particles improved gas permeability and separation factors, and increasing feed pressure led to simultaneous increase in CO2 permeability and gas pair selectivities.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Zhide Luo, Cuiping Zhang, Li Yang, Jinbao Zhang
Summary: Perovskite solar cells (PSCs) have shown rapid development in recent years, but their stability has been a key limitation for industrialization and commercialization due to sensitivity to environmental factors. This research developed an ambient spray coating method to create organic-inorganic composite films, significantly enhancing the stability of PSCs and offering potential for flexible and curved device applications.
Article
Engineering, Chemical
Yang Pan, Guining Chen, Jiangying Liu, Jiahui Li, Xi Chen, Haipeng Zhu, Gongping Liu, Guangru Zhang, Wanqin Jin
Summary: In this work, we successfully fabricated ultrathin PDMS membranes using PDMS monomer terminated with acryloyloxy groups (AC-PDMS) for the first time. By optimizing the UV wavelength, irradiation time, and polymer concentration, the resulting ACPDMS TFC membrane showed excellent CO2 permeance and selectivity, as well as improved crosslinking and packing behavior compared to conventional OH-PDMS. This strategy based on UV crosslinking acryloyloxy-terminated monomers provides a new avenue for the scalable production of ultrathin PDMS membranes for practical molecular separation applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Danial Nobakht, Reza Abedini
Summary: A novel high-performance mixed matrix membrane (MMM) based on poly(ether-b-amide) was fabricated with synthesized ZIF-8 nanoparticles embedded in maltitol-modified Pebax (R) 1657. The addition of ZIF-8 nanoparticles enhanced CO2 permeability and selectivity due to their selective affinity towards CO2. The performance of Pebax/maltitol (20 wt%)/ZIF-8 (5 wt%) membrane surpassed the Robeson upper bound for CO2/N2 separation and Robeson prior bound for CO2/CH4 separation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Surgery
Mian Wang, Chen Yao, Hen-Hui Yin, Jin-Song Wang, Bing-Ye Liao, Zi-Lun Li, Ri-Dong Wu, Gui-Yan Peng, Guang-Qi Chang
Summary: Treatment of ruptured TAAA and PRAAA with off-the-shelf Octopus technique is feasible and safe for high surgical risk patients, with significant reduction in aneurysm size and preserved branch patency.
JOURNAL OF ENDOVASCULAR THERAPY
(2023)
Article
Plant Sciences
Guo-Qiang Wu, Ling-Ling Xie, Jin-Long Wang, Bei-Chen Wang, Zhi-Qiang Li
Summary: Salinity is a major factor that limits the growth and productivity of plants and crops. In this study, 20 BvCIPK genes were identified in the sugar beet genome, and their classification, gene structure, and expression patterns were analyzed. The findings suggest that BvCIPKs may play a role in the salt stress response of sugar beet.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Polymer Science
Zejun Wang, Jiarui Ren, Lizhong Qian, Yufeng He, Pengfei Song, Rongmin Wang
Summary: FK-SA-Gbs prepared from feather keratin and sodium alginate showed significant pH sensitivity and sustained release, making them suitable for wound dressings.
Article
Green & Sustainable Science & Technology
Jinlong Wang, Ling Yang, Min Deng, Gui Zhang, Yaoqi Zhang
Summary: This study uses a spatial network methodology based on scenario simulation to investigate the sustainable development of the ecological-economic-social compound system in a specific region of Southern China, focusing on adaptability and effectivity. The results indicate that Scenario 3, which considers both adaptability and effectivity, is the superior control scheme and provides theoretical guidance for optimizing the spatial pattern of the compound system in the region.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Computer Science, Hardware & Architecture
Zhang Long, Wang Jinsong
Summary: Network traffic classification is crucial for various network activities, and machine learning methods are increasingly used due to the rise of encryption. However, the application of machine learning methods for network traffic classification using sampled NetFlow data is underdeveloped. This study proposes a network traffic classification module that combines NetFlow data with a deep neural network, and demonstrates its superior performance compared to other classifiers using real-world datasets.
Article
Automation & Control Systems
Yulin Yan, Zhiyong Hu, Wenqiang Yuan, Jinyan Wang
Summary: A method for pipeline leak detection based on EMD and DBN is proposed, achieving higher recognition accuracy compared to TWSVM, SVM, and BPNN.
MEASUREMENT & CONTROL
(2023)
Article
Materials Science, Multidisciplinary
Hong Yu, Jin-Zhao Kang, Long-Sheng Huang, Jin-Jin Wang, Xiao-Mei Wang, Xiang-Yuan Zhao, Cheng-Feng Du
Summary: A three-dimensional functional matrix derived from the Co/Zn-metal organic framework is synthesized to unravel the ambiguous mechanism in lithium-selenium batteries. The matrix effectively anchors the amorphous selenium and exhibits high electrochemical properties.
Article
Biology
Pan Hao, Chunli Zhang, Huan Ma, Rongfu Wang
Summary: Radioimmunotherapy (RIT) combined with gene therapy (GT) has a more effective role in inhibiting tumor development. The results of the study showed that the combination of RIT and GT significantly slowed tumor growth, while RIT or GT alone had no significant effect.
JOURNAL OF RADIATION RESEARCH
(2023)
Article
Computer Science, Information Systems
Dongsheng Han, Tao Liu, Feiyun Wu, Zhenyu Zhou, Yong Wei
Summary: This article presents a multi-BS heterogeneous network system model equipped with renewable energy production devices. A hybrid optimization algorithm is proposed to maximize the sum of SINR of users in the system through user scheduling and beam forming. Simulation results show that the proposed algorithm effectively increases system users' sum-SINR while ensuring system stability.
IEEE SYSTEMS JOURNAL
(2023)
Article
Computer Science, Artificial Intelligence
Xiaowei Zhao, Feiping Nie, Rong Wang, Xuelong Li
Summary: This article proposes a joint model to simultaneously learn the affinity relationship, reconstruction relationship, and projection matrix. It addresses the limitations of reconstruction graphs in terms of local sparsity of coefficients and accuracy of manifold structure, and improves the dimensionality reduction process with sparse and whitening constraints.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Automation & Control Systems
Feiping Nie, Xiaowei Zhao, Rong Wang, Xuelong Li
Summary: This article proposes a novel discriminant analysis model named FALDA, which improves the efficiency and robustness of LDA by utilizing an anchor-based strategy and introducing maximum entropy regularization. It also considers the interference of noise and redundant features and can explicitly divide data with complex distribution.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Engineering, Electrical & Electronic
Rong Wang, Zongheng Tang, Qianli Zhou, Xiaoqian Liu, Tianrui Hui, Quange Tan, Si Liu
Summary: Natural language tracking is a task that localizes the target object in video frames using a language description. This paper proposes a unified transformer method called TransNLT, which utilizes isomorphic transformer structures for feature extraction and incorporates cross-modal information through a selective feature gathering module. The method outperforms previous state-of-the-art methods on three popular natural language tracking benchmarks.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
(2023)
Article
Engineering, Civil
Chao Pan, Zhao Wang, Haijun Liao, Zhenyu Zhou, Xiaoyan Wang, Muhammad Tariq, Sattam Al-Otaibi
Summary: This paper presents an ASTEROID algorithm that utilizes asynchronous federated DQN and URLLC awareness to achieve task offloading and computation resource allocation in vehicular networks, aiming to satisfy URLLC constraints and maximize throughput. Simulation results demonstrate the superior performances of ASTEROID.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Computer Science, Artificial Intelligence
Feiping Nie, Canyu Zhang, Zheng Wang, Rong Wang, Xuelong Li
Summary: This article proposes a local embedding learning method using landmark-based dynamic connections to address the dimensionality reduction problem in non-Gaussian data. The method leverages landmarks to represent different subclusters and establishes connections to handle the local structure of the data. Experiments have demonstrated the advantages of this method.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Chemistry, Physical
Qianqian Fu, Hui Wang, Kunlun Nie, Xuyun Wang, Jianwei Ren, Rongfang Wang
Summary: In this study, P, S co-doped NiCoPxSy nanowire array catalysts were synthesized on a nickel foam substrate using a stepped preparation strategy. The prepared catalysts exhibited excellent electrocatalytic performance, enabling simultaneous hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) on both the anode and cathode. This research provides an effective method for designing innovative catalysts and producing clean energy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
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)