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学者姓名：林小城
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Abstract ：
According to the hydration size and charge property of separated ions, the transport channel can be constructed to achieve precision ion separation, but the ion geometry as a separation parameter to design the channel structure is rarely reported. Herein, a reverse-selective anion separation membrane composed of a metal-organic frameworks (MOFs) layer with a charged “hourglass” channel as an ion-selective switch to manipulate oxoanion transport is developed. The gate in “hourglass” with tetrahedral geometry similar to the oxoanion (such as SO2- 4, Cr 2O2- 7, and MnO- 4) boosts the transmission effect oxoanion much larger than Cl− through geometric matching and Coulomb interaction. Specific channel structure exhibits an abnormal selectivity for SO2- 4/Cl− of 20, Cr 2O2- 7/Cl− of 6.6, and MnO- 4/Cl− of 4.0 in a binary-ion system. The transfer behavior of SO2- 4 in the channel revealed by molecular dynamics simulation and density functional theory calculation further indicates the mechanism of the abnormal separation performance. The universality of the membrane structure is validated by the formation of different nitrogen-containing modified layers, which also achieves in situ growth of the MOFs layer, and exhibits similar reversal separation performance. The geometric configuration control of ion transport channels presents a novel effective strategy to realize the precise separation of target ions. © 2024 Wiley-VCH GmbH.
Keyword ：
anion selectivity anion selectivity channel configuration channel configuration geometric matching geometric matching metal-organic frameworks metal-organic frameworks
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| GB/T 7714 | Wu, B. , Yan, Y. , Chu, X. et al. Reverse-Selective Anion Separation Relies on Charged “Hourglass” Gate [J]. | Small , 2024 . |
| MLA | Wu, B. et al. "Reverse-Selective Anion Separation Relies on Charged “Hourglass” Gate" . | Small (2024) . |
| APA | Wu, B. , Yan, Y. , Chu, X. , Miao, J. , Ge, Q. , Lin, X. et al. Reverse-Selective Anion Separation Relies on Charged “Hourglass” Gate . | Small , 2024 . |
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To enrich and recover low-concentration (10 1 - 10 2 ppm) rare earth elements from ores and industrial wastes, high phase-ratio solvent extraction is favored. However, high phase-ratio solvent extraction is limited by low mass transfer efficiency in the continuous phase due to the insufficient contact between large volume continuous phase and sparse droplets. To realize efficient solvent extraction of rare earth ions from low concentrations (100 ppm) aqueous phase to oil phase with high phase ratio, we introduce a type of microchannel with sequential pore-throat geometry. This sequential pore-throat geometry creates capillary barriers and effectively retains dispersed droplets, leading to a reduction of apparent water - oil volume ratio and thereby major mass transfer enhancement in the continuous phase. We experimentally highlight its advantage over classic uniform microchannel for solvent extraction of rare earth ions under high phase ratios: in a double pore-throat microchannel, extraction equilibrium can be reached within 30 s under high phase ratios of 50 - 250; for an extreme phase ratio of 500:1, extraction efficiency can achieve 77 % within a quadruple pore-throat channel, while that within a uniform microchannel is only below 40 %. The superiority of sequential pore-throat microchannel for extraction at a high phase ratio is reproduced using different types of rare earth ions. We thus conclude that sequential porethroat geometry can drastically promote the performance of microfluidic-based solvent extraction at extreme phase ratios, for rare earth enrichment and potentially for other relevant applications.
Keyword ：
High phase ratio High phase ratio Microfluidics Microfluidics Rare earth elements Rare earth elements Solvent extraction Solvent extraction
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| GB/T 7714 | Ge, Xue-hui , Zhang, Huafeng , Huang, Xiaolian et al. Enhanced solvent extraction of rare earth elements in ultra-high phase ratio with pore-throat microchannels [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 353 . |
| MLA | Ge, Xue-hui et al. "Enhanced solvent extraction of rare earth elements in ultra-high phase ratio with pore-throat microchannels" . | SEPARATION AND PURIFICATION TECHNOLOGY 353 (2024) . |
| APA | Ge, Xue-hui , Zhang, Huafeng , Huang, Xiaolian , Liu, Zihan , Lin, Xiaocheng , Xu, Ke . Enhanced solvent extraction of rare earth elements in ultra-high phase ratio with pore-throat microchannels . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 353 . |
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The electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) represents a promising pathway for producing biomass-derived value-added chemicals. Nevertheless, the use of extremely expensive ion exchange membranes (IEMs) as separators significantly sacrifices the economic benefit in large-scale applications. Herein, we report a cost-effective non-fluorine cation exchange membrane (CEM) by grafting sulfonic acid (-SO3- ) groups onto the aromatic side chain of the polyethersulfone (PES) polymer. By tuning the content of -SO3 - groups, the physicochemical properties of the resulting CEMs can be easily adjusted. Impressively, the optimal HBS-PES-1.0 CEM with fully grafted -SO3- groups can achieve a high HMF conversion of 100 %, FDCA selectivity of 98.0 %, and Faradaic efficiency of 98.3 % when used as the separator for electrocatalytic oxidation of HMF, surpassing that of the commercial Nafion 117 membrane (100 % HMF conversion, 98.1 % FDCA selectivity, and 97.4 % Faradaic efficiency). This study provides a cost-effective and high-performance CEM as a substitute for the expensive commercial membrane, paving the way to large-scale commercial applications of biomass upgrading through the electrolysis process.
Keyword ：
Biomass upgrading Biomass upgrading Cation exchange membrane Cation exchange membrane HMF electrocatalytic oxidation HMF electrocatalytic oxidation Side -chain type Side -chain type
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| GB/T 7714 | Zhang, Hongwei , Xu, Hao , Zhu, Zhen et al. Construction of non-fluorine side-chain cation exchange membranes for efficient 5-hydroxymethylfurfural electrocatalytic oxidation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 706 . |
| MLA | Zhang, Hongwei et al. "Construction of non-fluorine side-chain cation exchange membranes for efficient 5-hydroxymethylfurfural electrocatalytic oxidation" . | JOURNAL OF MEMBRANE SCIENCE 706 (2024) . |
| APA | Zhang, Hongwei , Xu, Hao , Zhu, Zhen , Huang, Jinming , Zhang, Bowen , Cheng, Yafei et al. Construction of non-fluorine side-chain cation exchange membranes for efficient 5-hydroxymethylfurfural electrocatalytic oxidation . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 706 . |
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d-Allulose, a C-3 epimer of d-fructose, has great market potential in food, healthcare, and medicine due to its excellent biochemical and physiological properties. Microbial fermentation for d-allulose production is being developed, which contributes to cost savings and environmental protection. A novel metabolic pathway for the biosynthesis of d-allulose from a d-xylose-methanol mixture has shown potential for industrial application. In this study, an artificial antisense RNA (asRNA) was introduced into engineered Escherichia coli to diminish the flow of pentose phosphate (PP) pathway, while the UDP-glucose-4-epimerase (GalE) was knocked out to prevent the synthesis of byproducts. As a result, the d-allulose yield on d-xylose was increased by 35.1%. Then, we designed a d-xylose-sensitive translation control system to regulate the expression of the formaldehyde detoxification operon (FrmRAB), achieving self-inductive detoxification by cells. Finally, fed-batch fermentation was carried out to improve the productivity of the cell factory. The d-allulose titer reached 98.6 mM, with a yield of 0.615 mM/mM on d-xylose and a productivity of 0.969 mM/h. © 2024 American Chemical Society.
Keyword ：
d-allulose d-allulose Escherichia coli Escherichia coli fermentation fermentation metabolic engineering metabolic engineering
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| GB/T 7714 | Guo, Q. , Zheng, L.-J. , Zheng, S.-H. et al. Enhanced Biosynthesis of d-Allulose from a d-Xylose-Methanol Mixture and Its Self-Inductive Detoxification by Using Antisense RNAs in Escherichia coli [J]. | Journal of Agricultural and Food Chemistry , 2024 , 72 (26) : 14821-14829 . |
| MLA | Guo, Q. et al. "Enhanced Biosynthesis of d-Allulose from a d-Xylose-Methanol Mixture and Its Self-Inductive Detoxification by Using Antisense RNAs in Escherichia coli" . | Journal of Agricultural and Food Chemistry 72 . 26 (2024) : 14821-14829 . |
| APA | Guo, Q. , Zheng, L.-J. , Zheng, S.-H. , Zheng, H.-D. , Lin, X.-C. , Fan, L.-H. . Enhanced Biosynthesis of d-Allulose from a d-Xylose-Methanol Mixture and Its Self-Inductive Detoxification by Using Antisense RNAs in Escherichia coli . | Journal of Agricultural and Food Chemistry , 2024 , 72 (26) , 14821-14829 . |
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A green anion exchange membrane for electrodialysis desalination was synthesized using a solvent-free photo-polymerization approach. Vinylbenzyl chloride (monomer), tripropylene glycol diacrylate (crosslinker), and photoinitiator were mixed and subjected to UV polymerization for 20 min to create the base membrane, followed by positive charge modification with 1-methylimidazole. This method avoids organic solvents, offering economic and environmental benefits. By adjusting the degrees of crosslinking and positive charge, precise control over the membrane's microstructure and properties was achieved. The optimized membrane showed an area resistance of 1.67 Ω cm2 and a transport number of 0.956, demonstrating exceptional electrochemical performance. Under comparable conditions, the optimized membrane improved the NaCl removal rate by 11.47 %, increased current efficiency by 10.61 %, and reduced energy consumption by 16.75 % compared to commercial AMV membrane, highlighting its potential for scalable seawater desalination through electrodialysis. © 2024 Elsevier B.V.
Keyword ：
Anion exchange membrane Anion exchange membrane Desalination Desalination Electrodialysis Electrodialysis Photo-polymerization Photo-polymerization Solvent-free Solvent-free
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| GB/T 7714 | Ge, X. , Zhang, H. , Cheng, Y. et al. Solvent-free green synthesis of anion exchange membranes via photo-polymerization for efficient desalination by electrodialysis [J]. | Desalination , 2024 , 592 . |
| MLA | Ge, X. et al. "Solvent-free green synthesis of anion exchange membranes via photo-polymerization for efficient desalination by electrodialysis" . | Desalination 592 (2024) . |
| APA | Ge, X. , Zhang, H. , Cheng, Y. , Shao, H. , Yuan, L. , Shen, S. et al. Solvent-free green synthesis of anion exchange membranes via photo-polymerization for efficient desalination by electrodialysis . | Desalination , 2024 , 592 . |
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Achieving a balance between flame retardancy and overall performance in epoxy resin (EP) continues to be a significant challenge. In this study, a new multi-DOPO-based reactive flame retardant (DZH) was synthesized successfully using a simple one-pot method and employed as a co-curing agent with DDM. The results indicated that the inclusion of DZH decreased the activation energy of the curing reaction system. Furthermore, the presence of DZH, with its remarkable charring ability, enhanced the formation of char residues under high temperature conditions. Notably, the flame retardancy and mechanical properties of the EP/DZH system were significantly enhanced at certain additions. When added at only 5 wt% (phosphorus content: 0.525 wt%), the LOI value of the EP/DZH-5 increased from 24.4 % to 35.3 % for the EP matrix and achieved a V-0 rating in accordance with UL-94. Meanwhile, EP/DZH-5 exhibited a reduction of 44.1 % in pHRR and 24.3 % in SPR. The superior flame retardancy of the EP/DZH system was attributed to the dual flame-retardant mechanism exhibited in both the gaseous and condensed phases. In addition, the abundant presence of rigid phosphaphenanthrene groups and 7C-7C interactions between benzene rings led to an improvement in the tensile strength and tensile modulus, which rose to 91.0 MPa and 1.76 GPa, respectively, from 79.5 MPa and 1.26 GPa of EP in the case of EP/DZH-3. The utilization of this flame retardant, based on multi-DOPO, offers a promising approach for the development of high-performance epoxy resins.
Keyword ：
DOPO DOPO Epoxy resin Epoxy resin Flame retardancy Flame retardancy Mechanical properties Mechanical properties
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| GB/T 7714 | Luo, Yang , Cai, Jingyu , Li, Ling et al. Multi-DOPO-based derivative for enhancing flame retardancy and mechanical properties of epoxy resin [J]. | PROGRESS IN ORGANIC COATINGS , 2023 , 184 . |
| MLA | Luo, Yang et al. "Multi-DOPO-based derivative for enhancing flame retardancy and mechanical properties of epoxy resin" . | PROGRESS IN ORGANIC COATINGS 184 (2023) . |
| APA | Luo, Yang , Cai, Jingyu , Li, Ling , Lin, Xiaocheng , Xiao, Longqiang , Hou, Linxi . Multi-DOPO-based derivative for enhancing flame retardancy and mechanical properties of epoxy resin . | PROGRESS IN ORGANIC COATINGS , 2023 , 184 . |
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Under the environmental sustainability concept, landfill leachate concentrate can be up-cycled as a useful resource. Practical strategy for effective management of landfill leachate concentrate is to recover the existing humate as fertil-izer purpose for plant growth. Herein, we designed an electro-neutral nanofiltration membrane to separate the humate and inorganic salts for achieving a sufficient humate recovery from leachate concentrate. The electro-neutral nanofiltration membrane yielded a high retention of humate (96.54 %) with an extremely low salt rejection (3.47 %), tremendously outperforming the state-of-the-art nanofiltration membranes and exhibiting superior promise in fractionation of humate and inorganic salts. With implementation of the pressure-driven concentration process, the electro-neutral nanoltration membrane enriched the humate from 1756 to 51,466 mg & BULL;L-1 at a fold of 32.6, enabling 90.0 % humate recovery and 96.4 % desalination efciency from landll leachate concentrate. Furthermore, the recovered humate not only exerted no phytotoxicity, but also signicantly promoted the metabolism of red bean plants, serving as an effective green fertilizer. The study provides a conceptual and technical platform using high-performance electro-neutral nanoltration membranes to extract the humate as a promising nutrient for fertilizer application, in view of sustainable landll leachate concentrate treatment.
Keyword ：
Desalination Desalination Electro-neutral nanofiltration membranes Electro-neutral nanofiltration membranes Green fertilizer Green fertilizer Humate extraction Humate extraction Landfill leachate concentrate Landfill leachate concentrate
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| GB/T 7714 | Ye, Wenyuan , Hong, Mingqiu , Huang, Xuan et al. Towards effective recovery of humate as green fertilizer from landfill leachate concentrate by electro-neutral nanofiltration membrane [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 896 . |
| MLA | Ye, Wenyuan et al. "Towards effective recovery of humate as green fertilizer from landfill leachate concentrate by electro-neutral nanofiltration membrane" . | SCIENCE OF THE TOTAL ENVIRONMENT 896 (2023) . |
| APA | Ye, Wenyuan , Hong, Mingqiu , Huang, Xuan , Chen, Tianci , Gu, Ailiang , Lin, Xiaocheng et al. Towards effective recovery of humate as green fertilizer from landfill leachate concentrate by electro-neutral nanofiltration membrane . | SCIENCE OF THE TOTAL ENVIRONMENT , 2023 , 896 . |
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Reverse osmosis (RO) has been recognized as a reliable technique for wastewater reclamation. To enhance its rejection of trace organic contaminants (TrOCs), a novel strategy was proposed to improve reverse osmosis (RO) membranes by fabricating thin-film nanocomposite membrane (TFNi) with a TA-Fe3+/CNTs interlayer. The TFNi-30 membrane was obtained by optimizing the loading capacity. This optimized membrane gave rise to an enhanced water permeance of 3.2 +/- 0.2 L m-2 h-1 bar-1, which was two times higher than that of the control membrane (1.1 +/- 0.2 L m-2 h-1 bar-1), while achieving a considerably higher rejection of inorganic salts and trace organic contaminants (TrOCs) thanks to the formation of a denser polyamide rejection layer. In addition, the specific roles of the interlayer structure in determining the separation performance of RO membranes were investigated by tailoring the support-free RO membranes and comparing them with the conventional mem-branes. This study would provide a peer reference for designing high performance RO membranes for wastewater reclamation via the TFNi strategy.
Keyword ：
Reverse osmosis Reverse osmosis Thin film composite polyamide membrane Thin film composite polyamide membrane Trace organic contaminants Trace organic contaminants Wastewater reclamation Wastewater reclamation
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| GB/T 7714 | Liu, Lin , Lin, Xiaocheng , Li, Weiyi et al. Thin film composite reverse osmosis membranes with metal-organic coordination complexes stabilized CNTs interlayer for enhanced removal of trace organic contaminants [J]. | JOURNAL OF MEMBRANE SCIENCE , 2023 , 687 . |
| MLA | Liu, Lin et al. "Thin film composite reverse osmosis membranes with metal-organic coordination complexes stabilized CNTs interlayer for enhanced removal of trace organic contaminants" . | JOURNAL OF MEMBRANE SCIENCE 687 (2023) . |
| APA | Liu, Lin , Lin, Xiaocheng , Li, Weiyi , Liu, Xin , Fan, Fuqiang , Yang, Yi et al. Thin film composite reverse osmosis membranes with metal-organic coordination complexes stabilized CNTs interlayer for enhanced removal of trace organic contaminants . | JOURNAL OF MEMBRANE SCIENCE , 2023 , 687 . |
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Diffusion dialysis (DD) has high economic competitiveness for acid recovery; however, the fabrication of highly acid-permeable and salt-rejecting anion exchange membranes (AEMs) for DD is still a grand challenge. This paper presents in-situ cross-linked porous AEMs with tunable microstructures and high DD performance. The AEMs were fabricated based on chloromethyl polyethersulfone substrate using N, N, N ', N '', N ''-pentamethyldiethylenetriamine as a bifunctional agent for cross-linking and quaternization. The prepared porous AEMs showed significantly superior DD performance over conventional dense AEMs due to the high free volume and cross-linked networks within our membranes. The acid dialysis coefficient (UH+) and acid/salt separation factor (S) of the optimal AEM were 2.6 and 255.4 times as high as those of the commercial DF-120 AEM, respectively. Therefore, our low-cost, high-performance in-situ cross-linked porous AEMs may pave the way for large-scale acid recovery applications.
Keyword ：
Acid recovery Acid recovery Anion exchange membrane Anion exchange membrane Diffusion dialysis Diffusion dialysis In -situ cross -linking In -situ cross -linking
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| GB/T 7714 | Lin, Jiuyang , Dan, Xu , Wang, Jing et al. In-situ cross-linked porous anion exchange membranes with high performance for efficient acid recovery [J]. | JOURNAL OF MEMBRANE SCIENCE , 2023 , 673 . |
| MLA | Lin, Jiuyang et al. "In-situ cross-linked porous anion exchange membranes with high performance for efficient acid recovery" . | JOURNAL OF MEMBRANE SCIENCE 673 (2023) . |
| APA | Lin, Jiuyang , Dan, Xu , Wang, Jing , Huang, Sisi , Fan, Lihai , Xie, Ming et al. In-situ cross-linked porous anion exchange membranes with high performance for efficient acid recovery . | JOURNAL OF MEMBRANE SCIENCE , 2023 , 673 . |
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本发明属于膜技术领域，具体涉及一种封装离子液体支撑液膜及其制备方法，其是将Nafion溶液在多孔基膜上表面涂膜，加热烘干形成封装层，之后将胶水涂抹在多孔基膜的侧面，室温自然固化，再将离子液体灌装进多孔基膜中，最后将Nafion溶液在多孔基膜下表面涂膜，加热烘干形成封装层，最终得到所述封装离子液体支撑液膜。本发明所提供的封装离子液体支撑液膜在盐湖提锂的应用中表现出优异的Li+回收性能，并且经重复多次使用后不存在离子液体的流失。同时，本发明通过对制膜工艺尤其是封装层厚度的调控优化，将膜的稳定性和Li+回收率调到最优，具备盐湖提锂大规模化应用的前景。
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| GB/T 7714 | 林小城 , 卢刚 , 刘栋 . 一种封装离子液体支撑液膜及其制备方法 : CN202210338668.1[P]. | 2022-04-01 00:00:00 . |
| MLA | 林小城 et al. "一种封装离子液体支撑液膜及其制备方法" : CN202210338668.1. | 2022-04-01 00:00:00 . |
| APA | 林小城 , 卢刚 , 刘栋 . 一种封装离子液体支撑液膜及其制备方法 : CN202210338668.1. | 2022-04-01 00:00:00 . |
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