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学者姓名：安全福
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Abstract ：
Organic molecule desalination with nanofiltration has important practical application significance. Zwitterionbased nanofiltration membranes (ZNFMs) with selective channels for monovalent salts have been prepared to improve the separation performance. However, most ZNFMs tend to be restricted by their loose structures, which results in unsatisfactory rejection for small molecules with sub-200 Da molecular weight. In this study, a synchronous modification strategy during the heat treatment of interfacial polymerization was proposed, in which various multi-amine solutions were employed as the novel medium of heat treatment to regulate the structures of ZNFMs. The pore size distribution of membranes could be narrowed to a certain degree through cross-linking by corresponding multi-amines. The optimized ZNFMs exhibited excellent retention to small molecules. For example, the retention of glucose was dramatically increased to 96.5%. Meanwhile, the ZNFMs also had low rejection for monovalent salts, such as KCl (26.7 %). Consequently, the separation factor between glucose and KCl reached 21.2, which demonstrated a great potential for organic molecule desalination with sub-200 Da molecular weight.
Keyword ：
Selective channel Selective channel Pore size distribution regulation Pore size distribution regulation Organic molecule desalination Organic molecule desalination Secondary cross-linking Secondary cross-linking Zwitterionic nanofiltration membrane Zwitterionic nanofiltration membrane
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| GB/T 7714 | Wu, Bin , Fan, Weiyi , Wang, Ruochen et al. Custom-tailoring zwitterion-based nanofiltration membranes for organic molecule desalination with sub-200 Da molecular weight [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 698 . |
| MLA | Wu, Bin et al. "Custom-tailoring zwitterion-based nanofiltration membranes for organic molecule desalination with sub-200 Da molecular weight" . | JOURNAL OF MEMBRANE SCIENCE 698 (2024) . |
| APA | Wu, Bin , Fan, Weiyi , Wang, Ruochen , Wang, Naixin , Shen, Yue , Wanjiya, Mwema et al. Custom-tailoring zwitterion-based nanofiltration membranes for organic molecule desalination with sub-200 Da molecular weight . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 698 . |
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Abstract ：
Zwitterionic nanofiltration membranes, with high rejection to organic molecules while low rejection to monovalent salts, are promising for antibiotic desalination. However, due to the heterogeneous issue of interfacial polymerization, the residual amine groups result in polymer chain aggregation via hydrogen bonds, blocking the mass transfer of water and monovalent salts. Herein, EtOH-assisted Michael-addition/Schiff-base reaction strategy was proposed to solve the issue. NaOH was initially utilized to provisionally interrupt the hydrogen bonds between polymer chains. Meanwhile, with the assistance of EtOH, gallic acid diffused into the membrane and reacted with the amine groups on the polymer chains to form covalent bonds, which thoroughly destroyed the stacking of polymer chains. As a consequence, water permeance and antibiotic desalination efficiency of the membrane are improved. For example, the pure water permeance reaches 8.9 L m -2 h -1 bar - 1 , 1.7-fold enhancement compared with the pristine membrane. The membrane is applied for antibiotic desalination, offering long-term running stability, antifouling ability, as well as high efficiency in concentrated antibiotics.
Keyword ：
Post treatment Post treatment Antibiotic desalination Antibiotic desalination Zwitterionic nanofiltration membrane Zwitterionic nanofiltration membrane Targeted modification Targeted modification Hydrogen bond Hydrogen bond
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| GB/T 7714 | Tian, Na , Wu, Bin , Zhang, Wen-Hai et al. Tailoring the microstructure of zwitterionic nanofiltration membranes via post-treatment for antibiotic desalination [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 349 . |
| MLA | Tian, Na et al. "Tailoring the microstructure of zwitterionic nanofiltration membranes via post-treatment for antibiotic desalination" . | SEPARATION AND PURIFICATION TECHNOLOGY 349 (2024) . |
| APA | Tian, Na , Wu, Bin , Zhang, Wen-Hai , Jin, Cheng-Gang , Yin, Ming-Jie , An, Quan-Fu . Tailoring the microstructure of zwitterionic nanofiltration membranes via post-treatment for antibiotic desalination . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 349 . |
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Abstract ：
Incorporating zwitterionic materials into polymer matrix is an effective method to fabricate high-performance ultrafiltration membranes, which can improve the surface hydrophilicity while optimizing the internal structure of the membrane. In this study, a series of zwitterionic copolymers, 4VP-MPC, were synthesized using 4vinylpyridine (4VP) and 2-methylacryloxyethyl phosphocholine (MPC), and their impact on the phase inversion process of polysulfate (PSE) was investigated thoroughly by changing the addition amount and altering the copolymer composition. The addition of 4VP-MPC accelerated the phase inversion rate, reduced the skin layer thickness and improved the membrane porosity. Moreover, the hydrophilicity of the membrane surface is enhanced due to the segregation of the zwitterionic copolymer during the membrane formation process. A novel PSE/4VP-MPC membrane with good separation performance and antifouling property was fabricated, with a pure water flux of 221 L/(m2 h bar), a BSA rejection rate of 93.3 %, and a flux recovery rate of 94.6 %. Additionally, when filtering the mixed simulated dialysate, the optimized membrane showed clearance rates of 71.3 % and 97.0 % for lysozyme and urea respectively, while maintaining a high BSA rejection. This PSE/4VP-MPC blend membrane demonstrated potential applications in the field of ultrafiltration, including hemodialysis.
Keyword ：
NIPS NIPS Surface segregation Surface segregation Zwitterionic copolymer Zwitterionic copolymer Ultrafiltration Ultrafiltration Polysulfate Polysulfate
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| GB/T 7714 | Yang, Ziyun , Liu, Qiaohong , Zhang, Qianru et al. The construction of polysulfate membrane with improved ultrafiltration performance via zwitterionic copolymer segregation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 341 . |
| MLA | Yang, Ziyun et al. "The construction of polysulfate membrane with improved ultrafiltration performance via zwitterionic copolymer segregation" . | SEPARATION AND PURIFICATION TECHNOLOGY 341 (2024) . |
| APA | Yang, Ziyun , Liu, Qiaohong , Zhang, Qianru , Shen, Yue , Shi, Yijie , Sun, Yushan et al. The construction of polysulfate membrane with improved ultrafiltration performance via zwitterionic copolymer segregation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 341 . |
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Abstract ：
Alcohol-permselective pervaporation is a breakthrough technology in industrial separation applications. A highflux pervaporation membrane is demanded in cost saving. In this study, an ultrathin metal-organic framework (MOF) membrane was formed on a porous polymer substrate using a hydroxyl salt induced in situ growth method. Then, the obtained MOF membrane was modified through a sulfidation strategy to enhance the transport of alcohol molecules. The aperture of the MOFs was enlarged to form a hollow structure. Subsequently, polydimethylsiloxane was spin-coated on the MOF membrane to eliminate the grain boundary defects and improve the hydrophobicity, without increasing the thickness of the MOF layer. Based on the ultra-fast transport channels, the modified MOF membrane exhibited an ultrahigh flux of 11.6 kg m(- 2) h(-1) with comparable separation factors for 5 wt% ethanol aqueous solution at 60 degree celsius. The diffusion mechanism of alcohol molecules was confirmed by the molecular dynamic simulation.
Keyword ：
Post-synthetic modification Post-synthetic modification Alcohol-permselective Alcohol-permselective Pervaporation Pervaporation Ultra-fast transport channel Ultra-fast transport channel MOF membrane MOF membrane
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| GB/T 7714 | Wang, Fengkai , Sun, Hao , Shen, Mengxin et al. Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 698 . |
| MLA | Wang, Fengkai et al. "Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation" . | JOURNAL OF MEMBRANE SCIENCE 698 (2024) . |
| APA | Wang, Fengkai , Sun, Hao , Shen, Mengxin , Li, Jie , Wang, Naixin , Meng, Hong et al. Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 698 . |
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Abstract ：
Recycling of valuable solutes and recovery of organic solvents via organic solvent nanofiltration (OSN) are important for sustainable development. However, the trade-off between solvent permeability and solute rejection hampers the application of OSN membranes. To address this issue, the poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) nanoparticle membrane with hierarchical pores is constructed for OSN via vacuum filtration. The small pores (the free volume of the polymer chain) charge for the solute rejection (high rejection efficiency for low molecule weight solute) and allow solvent passing while the large pores (the void between two PEDOT:PSS nanoparticles) promote the solvent transport. Owing to the lack of connectivity among the large pores, the fabricated PEDOT:PSS nanoparticle membrane enhanced solvent permeance while maintaining a high solute rejection efficiency. The optimized PEDOT:PSS membrane affords a MeOH permeance of 7.2 L m(-2) h(-1) bar(-1) with over 90% rejection of organic dyes, food additives, and photocatalysts. Moreover, the rigidity of PEDOT endows the membrane with distinctive stability under high-pressure conditions. The membrane is used to recycle the valuable catalysts in a methanol solution for 150 h, maintaining good separation performance. Considering its high separation performance and stability, the proposed PEDOT:PSS membrane has great potential for industrial applications.
Keyword ：
organic solvent nanofiltration organic solvent nanofiltration free volume free volume PEDOT:PSS nanoparticle membrane PEDOT:PSS nanoparticle membrane acid treatment acid treatment interparticle distance interparticle distance
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| GB/T 7714 | Zhang, Jia-Chen , Lv, Tian-Run , Yin, Ming-Jie et al. PEDOT:PSS Nanoparticle Membranes for Organic Solvent Nanofiltration [J]. | SMALL , 2024 . |
| MLA | Zhang, Jia-Chen et al. "PEDOT:PSS Nanoparticle Membranes for Organic Solvent Nanofiltration" . | SMALL (2024) . |
| APA | Zhang, Jia-Chen , Lv, Tian-Run , Yin, Ming-Jie , Ji, Yan-Li , Jin, Cheng-Gang , Chen, Bo-Hao et al. PEDOT:PSS Nanoparticle Membranes for Organic Solvent Nanofiltration . | SMALL , 2024 . |
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| GB/T 7714 | Zhang, Wen -Hai , Yin, Ming-Jie , Jin, Cheng-Gang et al. Ice-crystal templating approach for tailoring mass transfer channels in graphene oxide membranes for high-performance dye/salt separation (vol 183, pg 119, 2021) [J]. | CARBON , 2024 , 221 . |
| MLA | Zhang, Wen -Hai et al. "Ice-crystal templating approach for tailoring mass transfer channels in graphene oxide membranes for high-performance dye/salt separation (vol 183, pg 119, 2021)" . | CARBON 221 (2024) . |
| APA | Zhang, Wen -Hai , Yin, Ming-Jie , Jin, Cheng-Gang , Liu, Zhi-Jie , Wang, Naixin , An, Quan-Fu . Ice-crystal templating approach for tailoring mass transfer channels in graphene oxide membranes for high-performance dye/salt separation (vol 183, pg 119, 2021) . | CARBON , 2024 , 221 . |
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Abstract ：
Graphene oxide (GO) is regarded as a promising next-generation high-performance separation membrane material. However, the flexiblility of single-layer GO nanosheets usually results in membrane with poor stability under practical conditions. In this study, we present a facile strategy to rapidly convert single-layer nanosheet GO membranes into supra-nanosheet GO (sGO) membranes with a loose rigid structure by a confined gelling and crosslinking process. The optimized sGO membrane exhibits remarkable water permeance and retention capability. With additional tailor-made nanopores, the water permeance of the sGO membrane could reach 52.0 LMH/bar, representing 10-fold increase compared to pristine GO membrane. Furtheermore, this membrane demonstrates excellent pressure stability and unique elasticity, enhancing its lorg-term operational reliability and reversible recovery. Hence, this innovative strategy provides a platform for the facily construction of highly stable 2D membranes with enhanced water transport channels.
Keyword ：
Loose nanofiltration Loose nanofiltration Supra-GO (sGO) Supra-GO (sGO) GO membrane GO membrane Antibiotic desalination Antibiotic desalination Crosslinking Crosslinking
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| GB/T 7714 | Zhang, Wen-Hai , Ren, Yun-Han , Yin, Ming-Jie et al. Stable supra-nanosheet graphene oxide membranes for ultrafast water transport [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 711 . |
| MLA | Zhang, Wen-Hai et al. "Stable supra-nanosheet graphene oxide membranes for ultrafast water transport" . | JOURNAL OF MEMBRANE SCIENCE 711 (2024) . |
| APA | Zhang, Wen-Hai , Ren, Yun-Han , Yin, Ming-Jie , Liu, Zhi-Jie , Gao, Haiqi , Wang, Shuang-Shuang et al. Stable supra-nanosheet graphene oxide membranes for ultrafast water transport . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 711 . |
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Abstract ：
Conductive polymers are recognized as ideal candidates for the development of noninvasive and wearable sensors for real-time monitoring of potassium ions (K+) in sweat to ensure the health of life. However, the low ion-to-electron transduction efficiency and limited active surface area hamper the development of high-performance sensors for low-concentration K+ detection in the sweat. Herein, a wearable K+ sensor is developed by tailoring the nanostructure of polypyrrole (PPy), serving as an ion-to-electron transduction layer, for accurately and stably tracing the K+ fluctuation in human sweat. The PPy nanostructures can be tailored from nanospheres to nanofibers by controlling the supramolecular assembly process during PPy polymerization. Resultantly, the ion-to-electron transduction efficiency (17-fold increase in conductivity) and active surface area (1.3-fold enhancement) are significantly enhanced, accompanied by minimized water layer formation. The optimal PPy nanofibers-based K+ sensor achieved a high sensitivity of 62 mV decade(-1), good selectivity, and solid stability. After being integrated with a temperature sensor, the manufactured wearable sensor realized accurate monitoring of K+ fluctuation in the human sweat.
Keyword ：
ion-selective electrodes ion-selective electrodes polypyrrole nanofibers polypyrrole nanofibers wearable potentiometric ion sensors wearable potentiometric ion sensors sweat sweat
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| GB/T 7714 | Yang, Yaqiong , Lv, Tian-Run , Zhang, Wen-Hai et al. Tailored Polypyrrole Nanofibers as Ion-to-Electron Transduction Membranes for Wearable K+ Sensors [J]. | SMALL , 2024 , 20 (26) . |
| MLA | Yang, Yaqiong et al. "Tailored Polypyrrole Nanofibers as Ion-to-Electron Transduction Membranes for Wearable K+ Sensors" . | SMALL 20 . 26 (2024) . |
| APA | Yang, Yaqiong , Lv, Tian-Run , Zhang, Wen-Hai , Zhang, Jia-Yue , Yin, Ming-Jie , An, Quan-Fu . Tailored Polypyrrole Nanofibers as Ion-to-Electron Transduction Membranes for Wearable K+ Sensors . | SMALL , 2024 , 20 (26) . |
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Abstract ：
Blending hydrophilic additives is an effective method to improve the surface hydrophilcility and antifouling property of ultrafiltration membranes. In this study, we prepared a series of polysulfate (PSE) hollow fiber membranes (HFMs) containing a zwitterion-based copolymer, poly(4-vinylpyridine-co-methylacryloxyethyl phosphocholine), with varying monomer ratios and blending quantities. The relationship between cast solution properties and phase separation behavior was investigated, as well as the impacts of copolymer composition and amount on the separation performances and antifouling abilities of the membranes. A higher hydrophilic monomer ratio and more copolymer addition of zwitterionic copolymer would facilitate surface segregation, increasing the hydrophilicity of membrane surface and generating a dense hydration layer. This layer can resist macromolecule contaminants and promote water molecular transport. Furthermore, a more compacted skin layer improves separation ability. The optimized PSE HFMs had water fluxes around 140 L m- 2 h- 1, BSA rejections over 97 %, and flux recovery rates over 92 % during operation. Moreover, the membrane demonstrated ultra-low flux-sacrifice when applied to protein solutions while maintaining a high rejection rate, which indicates the distinctive and strong competitiveness of PSE/P(4VP-co-MPC) HFMs.
Keyword ：
Surface segregation Surface segregation UF membrane UF membrane Hollow fiber Hollow fiber Zwitterionic copolymer Zwitterionic copolymer Polysulfate Polysulfate
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| GB/T 7714 | Wang, Zhi-Peng , Cheng, Ziyang , Liu, Qiaohong et al. Enhanced antifouling PSE hollow fiber membrane via zwitterionic copolymer segregation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 716 . |
| MLA | Wang, Zhi-Peng et al. "Enhanced antifouling PSE hollow fiber membrane via zwitterionic copolymer segregation" . | JOURNAL OF MEMBRANE SCIENCE 716 (2024) . |
| APA | Wang, Zhi-Peng , Cheng, Ziyang , Liu, Qiaohong , Hou, Chunguang , An, Quan-Fu . Enhanced antifouling PSE hollow fiber membrane via zwitterionic copolymer segregation . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 716 . |
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Abstract ：
Mixed matrix membranes exhibit enhanced selectivity and permeability, but stability still needs to be improved. In this study, we prepared ZIF-8/PEBA mixed matrix membranes with different loadings and used interface induction to control the directional distribution of nanoparticles. The controlled directional distribution of ZIF-8 in PEBA was studied by optical microscopy and scanning electron microscopy. The effects of different ZIF-8 loading amounts on the formation and pervaporation performance of mixed matrix membranes were thoroughly studied. The prepared membrane was applied to 1 wt% n-butanol aqueous solution, achieving a high flux of 4.9 kg m- 2 h-1 and a separation factor of 18.8. The directional distribution of nanoparticles in PEBA prevents direct contact with the feed liquid and effectively protects the structural stability of ZIF-8. The resulting ZIF-8/ PEBA membrane showed excellent stability after more than 100 h of operation.
Keyword ：
Liquid-liquid interface Liquid-liquid interface PEBA PEBA ZIF-8 ZIF-8 Mixed matrix membrane Mixed matrix membrane N-Butanol N-Butanol
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| GB/T 7714 | Cai, Peng , Li, Jie , Song, Danyang et al. Enhancing permeability and stability of ZIF-8/PEBA pervaporation membrane through interface-induced directional nanoparticle distribution [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 695 . |
| MLA | Cai, Peng et al. "Enhancing permeability and stability of ZIF-8/PEBA pervaporation membrane through interface-induced directional nanoparticle distribution" . | JOURNAL OF MEMBRANE SCIENCE 695 (2024) . |
| APA | Cai, Peng , Li, Jie , Song, Danyang , Zhang, Nai , An, Quan-Fu . Enhancing permeability and stability of ZIF-8/PEBA pervaporation membrane through interface-induced directional nanoparticle distribution . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 695 . |
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