Journal of Membrane Science
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#1Kanupriya Nayak (IITD: Indian Institute of Technology Delhi)H-Index: 2
#2Anubhav Kumar (IITD: Indian Institute of Technology Delhi)H-Index: 3
Last. Bijay P. Tripathi (IITD: Indian Institute of Technology Delhi)H-Index: 27
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Abstract null null Effective surface modification strategies are at the core of developing efficient and antifouling membranes for a range of separation, purification, and wastewater treatment applications. The inherently hydrophobic nature of most polymeric membranes is one of the primary factors for their high fouling susceptibility. In this work, we have designed a simple and straightforward membrane modification methodology utilizing the reactive nature of polydopamine to molecularly graft s...
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#1Bin Wu (Beijing University of Technology)H-Index: 3
#2Naixin Wang (Beijing University of Technology)H-Index: 28
Last. Quan-Fu An (Beijing University of Technology)H-Index: 53
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Abstract null null Zwitterionic groups are conducive to improve the antifouling performance and water permeability of nanofiltration membranes because of the excellent hydrophilicity and charged property. However, the transport of zwitterionic monomers during interfacial polymerization process is much slower than the reaction, leading to form many defects in the separation layer. In this study, phase transfer catalysts were used to intensify the interfacial mass transfer of zwitterionic amine mo...
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#1Jinwu Peng (SZU: Shenzhen University)H-Index: 1
#2Xian-Zhu Fu (SZU: Shenzhen University)H-Index: 16
Last. Xiaojun Peng (DUT: Dalian University of Technology)
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Abstract null null Compared with linear polybenzimidazole (PBI) membranes, cross-linked phosphoric acid (PA)-PBI membranes with superior mechanical strength have greater potential for application in high-temperature proton exchange membrane fuel cells (HT-PEMFCs). However, performances of conventional cross-linked membranes are usually limited by densely cross-linked network, and reduced concentration of proton-conductive imidazole units. Therefore, it still remains a big challenge to fabricate ...
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#1Penghua Qian (Tianjin Polytechnic University)H-Index: 4
#2Haixia Wang (Tianjin Polytechnic University)H-Index: 16
Last. Haifeng Shi (Tianjin Polytechnic University)H-Index: 26
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Abstract null null Sulfonated poly(ether ether ketone) (SPEEK) based composite membranes for vanadium redox flow battery (VRFB) are fabricated through blending various contents of sulfonated poly (aryl ether sulfone) (SPAES) containing sulfoalkylamine chains. Influenced by the pendant sulfoalkyl groups of SPAES, an enhanced synergistic proton transport channel is formed, showing a trade-off balance between proton conductivity and permeability. The SPEEK/SPAES-15 membrane exhibits the highest ion...
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Abstract null null The conventional Na-mordenite (Na-MOR) zeolite membranes prepared on α-Al2O3 tubes by secondary hydrothermal growth method. To improve membrane performances in dehydration of acetic acid by pervaporation, the Na+ as counter ions in MOR membranes were exchanged by a series of mono- and di-valent cations to adjusted the channel structure and water affinity. Langmuir surface areas for monovalent ion-exchanged MOR zeolites were consistent with the reverse order of ion radii as H+>...
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#1Abu Zafar Al Munsur (Incheon National University)H-Index: 7
#2Junghwa Lee (Incheon National University)H-Index: 1
Last. Tae-Hyun Kim (Incheon National University)H-Index: 53
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Abstract null null The new hydrophilic–hydrophobic comb-type anion exchange membrane (AEM) was prepared from SEBS grafted with hexyl quaternary ammonium (HQA) and fluorobenzoyl. As confirmed by XRD and TEM, a better phase separation was obtained by adding a highly hydrophobic fluorine-substituted pendant as an enhanced hydrophobic spacer to the conducting head group (which contained a hexyl spacer as a hydrophilic unit). The HQA-F1-SEBS and HQA-F5-SEBS membranes, with fluorobenzoyl and pentafluo...
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#1Cheng-Gang Jin (Beijing University of Technology)H-Index: 2
#2Ming-Jie Yin (Beijing University of Technology)
Last. Quan-Fu An (Beijing University of Technology)H-Index: 53
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Abstract null null Acetic acid, as one of the top 50 important chemicals, has been broadly applied for production of cellulose acetate, polyvinyl acetate, as well as synthetic fibers and fabrics, and so on. However, the acetic acid production always involves in water which should be removed. Thus, energy-efficient and environmental-friendly dehydration of acetic acid is highly required in current chemical industry. In this study, we proposed a ‘hard-crosslinking-soft’ strategy to construct a kin...
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#1Wei Li (ECNU: East China Normal University)
#2Yanhong Li (ECNU: East China Normal University)H-Index: 4
Last. Aisheng Huang (ECNU: East China Normal University)H-Index: 38
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Abstract null null Hydrogen-bonded Organic Frameworks (HOFs), consisting of H-bonds and strong π-π interaction, are novel materials with ordered and flexible porous frameworks. With permanent porosity, HOFs are considered as a promising material for large-scale preparation of gas separation membranes owing to their superior stability. Herein, we report a novel HOF-based Mixed-Matrix Membrane (MMM) termed HOF-30@PI by blending HOF-30 crystals with PolyImide (PI) for hydrogen separation. The added...
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#1Tauqir A. Sherazi (CUI: COMSATS Institute of Information Technology)H-Index: 18
#2Shumaila Azam (CUI: COMSATS Institute of Information Technology)
Last. Shenghai Li (CAS: Chinese Academy of Sciences)H-Index: 36
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Abstract null null Fouling resistant zwitterionic analog ultrafiltration polymer membranes are fabricated from the composite mixture of virgin polysulfone (PSf), chloromethylated polysulfone (CMPSf), and oxidized nano-carbon black (ONCB) using phase inversion process. The chemical characterization of the membranes is performed by 1H NMR, FT-IR and Raman spectroscopy. Thermal gravimetric analysis and scanning electron microscopy are used to determine thermal behavior and morphology of membranes, ...
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#1Yaeli S. Oren (BGU: Ben-Gurion University of the Negev)H-Index: 9
#2Viatcheslav Freger (Technion – Israel Institute of Technology)H-Index: 39
Last. Oded Nir (BGU: Ben-Gurion University of the Negev)H-Index: 14
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Abstract null null Accounting for concentration-polarization (CP) is critical for modeling solute transport in membrane separation processes. In a mixed-electrolyte solution, ions CP is affected not only by diffusion and advection but also by electromigration. Yet, the classic film model, lacking an electromigration term, is frequently used for modeling ion CP. Often, ion CP is altogether neglected to reduce the computational load. Here, we study the CP of trace ions in a dominant salt solution,...
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