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学者姓名：王乃鑫
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摘要 ：
Zeolitic imidazolate framework (ZIF) membranes have great potential applications in nanofiltration. However, preparing continuous and intact ZIF membranes on the surface of a substrate remains challenging. In this study, we assembled ZIF-8 nanoparticles in situ in the pores of a porous alumina substrate via a freezing-assisted counter-diffusion method. Although a continuous ZIF-8 membrane was not formed on the surface of the sub-strate, the obtained nano-confined composite membrane was dense enough to separate antibiotics and salt. The rejection rate of tetracycline was above 99 %, while that of sodium chloride was below 20 %, demonstrating good antibiotic desalination performance. The permeance of the ZIF-8 membrane reached 23.5 LMH/bar. Due to the nano-confined structure, the obtained ZIF-8 composite membrane was robust. Besides, polishing the surface layer did not reduce the separation performance. Moreover, sulfurizing the ZIF-8 membrane improved its sta-bility in water. It also improved the permeance to 31.3 LMH/bar, which remained stable for 100 h. Therefore, the obtained robust ZIF-8 membrane and its derivative composite membrane fabricated via freezing-assisted counter-diffusion have great potential in antibiotic desalination.
关键词 ：
ZnS membrane ZnS membrane ZIF-8 membrane ZIF-8 membrane Counter-diffusion Counter-diffusion Freezing assistance Freezing assistance Antibiotic desalination Antibiotic desalination
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| GB/T 7714 | Wang, Chengcheng , Sun, Hao , Wang, Naixin et al. Robust ZIF-8 and its derivative composite membrane for antibiotic desalination with high performance [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 307 . |
| MLA | Wang, Chengcheng et al. "Robust ZIF-8 and its derivative composite membrane for antibiotic desalination with high performance" . | SEPARATION AND PURIFICATION TECHNOLOGY 307 (2023) . |
| APA | Wang, Chengcheng , Sun, Hao , Wang, Naixin , An, Quan-Fu . Robust ZIF-8 and its derivative composite membrane for antibiotic desalination with high performance . | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 307 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Pervaporation is considered to have great potential for application in the field of organic-solvent dehydration. In this study, a type of keto-enamine-linked covalent organic framework TpPa (synthesized using the Schiff-base reaction of 1,3,5-triformylphloroglucinol [Tp] with p-phenylenediamine [Pa]), was fabricated on commercial polyacrylonitrile (PAN) ultrafiltration membranes through an oxygen-plasma assisted contra-diffusion self-assembly strategy for organic-solvent dehydration. The PAN membranes with a glycerol exhibited a better separation factor for dehydration of organic solvents than those without a glycerol layer. The influence of oxygen plasma and glycerol on the formation of the TpPa membrane was investigated. The best plasma treatment condition and optimum glycerol impregnation concentration were determined as a device power of 60 W and 30 wt%, respectively. Defect-free TpPa membrane formation took only 24 h. The as-prepared TpPa membrane exhibited a separation factor of 1491 and a high permeation flux of 2530 g m(-2) h(-1) for a 90 wt% isopropanol-water mixture. The separation performance of the TpPa membrane was stable for >100 h, exhibiting great potential in organic-solvent dehydration.
关键词 ：
Covalent organic framework Covalent organic framework Organic-solvent dehydration Organic-solvent dehydration Contra-diffusion self-assembly Contra-diffusion self-assembly Pervaporation Pervaporation Oxygen plasma etching Oxygen plasma etching
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| GB/T 7714 | Wang, Xiangqiong , Wang, Naixin , Ni, Hongxu et al. Oxygen plasma-assisted contra-diffusion self-assembly of covalent organic framework pervaporation membranes for organic-solvent dehydration [J]. | JOURNAL OF MEMBRANE SCIENCE , 2023 , 665 . |
| MLA | Wang, Xiangqiong et al. "Oxygen plasma-assisted contra-diffusion self-assembly of covalent organic framework pervaporation membranes for organic-solvent dehydration" . | JOURNAL OF MEMBRANE SCIENCE 665 (2023) . |
| APA | Wang, Xiangqiong , Wang, Naixin , Ni, Hongxu , Liu, Tong , An, Quan-Fu . Oxygen plasma-assisted contra-diffusion self-assembly of covalent organic framework pervaporation membranes for organic-solvent dehydration . | JOURNAL OF MEMBRANE SCIENCE , 2023 , 665 . |
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摘要 ：
In this study, a facile strategy for in situ growth of covalent triazine frameworks (CTFs) membrane on alpha-Al2O3 substrate was presented. An intact CTFs based composite membrane was obtained in a solvothermal growth process. The structure and property of the CTFs composite membranes were investigated. The results indicated that CTFs could grow in the pores of the alpha-Al2O3 substrate to modify the transport channel. Due to the sieving effect of the CTFs aperture, the prepared CTFs composite membrane exhibited superior rejection for different types of dyes (>97%) with extremely low rejection for salts (<20%). Moreover, the CTFs composite membrane had a high permeability (448 L m(-2)h(-1) MPa-1) and good stability for dye desalination. This approach demonstrated the great potential of CTFs membranes for dye/salt separation.
关键词 ：
Covalent triazine frameworks Covalent triazine frameworks Dye/salt separation Dye/salt separation High permeability High permeability In situ growth In situ growth Nanofiltration Nanofiltration
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| GB/T 7714 | Wang, Xiangqiong , Wang, Naixin , Ni, Hongxu et al. In situ growth of covalent triazine frameworks membrane on alumina substrate for dye/salt separation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2022 , 280 . |
| MLA | Wang, Xiangqiong et al. "In situ growth of covalent triazine frameworks membrane on alumina substrate for dye/salt separation" . | SEPARATION AND PURIFICATION TECHNOLOGY 280 (2022) . |
| APA | Wang, Xiangqiong , Wang, Naixin , Ni, Hongxu , An, Quan-Fu . In situ growth of covalent triazine frameworks membrane on alumina substrate for dye/salt separation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2022 , 280 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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 kind of organic-inorganic hybrid membrane by doping aminated silica (SiO2-NH2) nanoparticles into the polyelectrolyte complex (PEC) membrane for dehydration of acetic acid. The addition of SiO2-NH2 nanoparticles plays two roles: one is as the 'hard' part to overcome the over-swelling issue of 'soft' PEC membrane; another is creation of more free volume for water passing through. As a result, the proposed hybrid membrane could simultaneously augment the permeability and selectivity of the pervaporation membrane, breaking the notorious 'trade-off' restriction of separation membranes. The preparation parameters and operation condition on the performance of the membrane were detailed studied. The optimized membrane offers a flux of 1225 g/m2h and a separation factor of 1442 in dehydration of 10 wt% water/acetic acid mixtures at 50 degrees C, with pervaporation separation index of 1.77 x 106 g/m2h, among the top-tier separation performance. Besides, the prepared membrane could stably work for 144 h due to the chemical crosslinking by glyoxal, promising for the practical application for acetic acid dehydration.
关键词 ：
Acetic acid dehydration Acetic acid dehydration Organic-inorganic hybridization Organic-inorganic hybridization Pervaporation Pervaporation Polyelectrolyte complex Polyelectrolyte complex
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| GB/T 7714 | Jin, Cheng-Gang , Yin, Ming-Jie , Wu, Jia-Kai et al. Development of high-performance and robust membrane via 'hard-crosslinking-soft' technique for dehydration of acetic acid [J]. | JOURNAL OF MEMBRANE SCIENCE , 2022 , 643 . |
| MLA | Jin, Cheng-Gang et al. "Development of high-performance and robust membrane via 'hard-crosslinking-soft' technique for dehydration of acetic acid" . | JOURNAL OF MEMBRANE SCIENCE 643 (2022) . |
| APA | Jin, Cheng-Gang , Yin, Ming-Jie , Wu, Jia-Kai , Zhang, Wen-Hai , Wang, Naixin , An, Quan-Fu . Development of high-performance and robust membrane via 'hard-crosslinking-soft' technique for dehydration of acetic acid . | JOURNAL OF MEMBRANE SCIENCE , 2022 , 643 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Organic solvent nanofiltration is a promising separation technology for removing solute from an organic medium. However, the fabrication of organic solvent nanofiltration membranes with stable separation performance is still a challenge. Herein, a hydrophobic polyelectrolyte multilayer membrane was prepared through a layer-by-layer self-assembly and counterion exchange method. Poly(diallyl dimethyl ammonium chloride) (PDDA)/polyacrylic acid (PAA) multilayer was self-assembled on the surface of the hydrolyzed polyacrylonitrile substrate through electrostatic interaction. Simultaneously, calcium silicate hydrate (CSH) nanoparticles were in situ grown during the multilayer formation process due to the incorporation of precursor in polyelectrolyte solutions. Therefore, the surface roughness of the membrane was enhanced and the anti-swelling property of the polyelectrolyte multilayer was also improved. The hydrophilic [(PDDA/PAA-CSH)2.5]+Cl− membrane was then converted to the hydrophobic membrane through the counterion exchange between Cl− and perfluorooctanate (PFO−) ions. The obtained [(PDDA/PAA-CSH)2.5]+PFO− membrane has a water contact angle of 118°, which can be used to separate dyes from ethanol. Both the separation performance and stability of the polyelectrolyte multilayer membrane were improved through the in situ growth of calcium silicate hydrate nanoparticles and counterion exchange by perfluorooctanate ions. Therefore, this strategy may open a new avenue to prepare organic solvent nanofiltration membranes. © 2020 Elsevier B.V.
关键词 ：
Calcium silicate Calcium silicate Chlorine compounds Chlorine compounds Contact angle Contact angle Hydrates Hydrates Hydration Hydration Hydrophobicity Hydrophobicity Ions Ions Multilayers Multilayers Nanofiltration Nanofiltration Nanofiltration membranes Nanofiltration membranes Nanoparticles Nanoparticles Organic solvents Organic solvents Polyelectrolytes Polyelectrolytes Self assembly Self assembly Silicate minerals Silicate minerals Surface roughness Surface roughness
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| GB/T 7714 | Lu, Yahua , Qin, Zhenping , Wang, Naixin et al. Counterion exchanged hydrophobic polyelectrolyte multilayer membrane for organic solvent nanofiltration [J]. | Journal of Membrane Science , 2021 , 620 . |
| MLA | Lu, Yahua et al. "Counterion exchanged hydrophobic polyelectrolyte multilayer membrane for organic solvent nanofiltration" . | Journal of Membrane Science 620 (2021) . |
| APA | Lu, Yahua , Qin, Zhenping , Wang, Naixin , An, Quan-Fu , Guo, Hongxia . Counterion exchanged hydrophobic polyelectrolyte multilayer membrane for organic solvent nanofiltration . | Journal of Membrane Science , 2021 , 620 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The robustness of carbon nanomaterials and their potential for ultrahigh permeability has drawn substantial interest for separation processes. However, graphene oxide membranes (GOms) have demonstrated limited viability due to instabilities in their microstructure that lead to failure under cross-flow conditions and applied hydraulic pressure. Here we present a highly stable and ultrapermeable zeolitic imidazolate framework-8 (ZIF-8)-nanocrystal-hybridized GOm that is prepared by ice templating and subsequent in situ crystallization of ZIF-8 at the nanosheet edges. The selective growth of ZIF-8 in the microporous defects enlarges the interlayer spacings while also imparting mechanical integrity to the laminate framework, thus producing a stable microstructure capable of maintaining a water permeability of 60 l m-2 h-1 bar-1 (30-fold higher than GOm) for 180 h. Furthermore, the mitigation of microporous defects via ZIF-8 growth increased the permselectivity of methyl blue molecules sixfold. Low-field nuclear magnetic resonance was employed to characterize the porous structure of our membranes and confirm the tailored growth of ZIF-8. Our technique for tuning the membrane microstructure opens opportunities for developing next-generation nanofiltration membranes.
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| GB/T 7714 | Zhang Wen-Hai , Yin Ming-Jie , Zhao Qiang et al. Graphene oxide membranes with stable porous structure for ultrafast water transport. [J]. | Nature nanotechnology , 2021 , 16 (3) : 337-343 . |
| MLA | Zhang Wen-Hai et al. "Graphene oxide membranes with stable porous structure for ultrafast water transport." . | Nature nanotechnology 16 . 3 (2021) : 337-343 . |
| APA | Zhang Wen-Hai , Yin Ming-Jie , Zhao Qiang , Jin Cheng-Gang , Wang Naixin , Ji Shulan et al. Graphene oxide membranes with stable porous structure for ultrafast water transport. . | Nature nanotechnology , 2021 , 16 (3) , 337-343 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Graphene oxide (GO) has been considered as a promising material to develop advanced nanofiltration membranes to resolve the current worldwide water scarcity issue, benefiting from its extraordinary physicochemical properties. However, loose-GO-nanosheet-stacking rendered membrane compaction during operation significantly harms the mass transfer of GO membranes. Here, we proposed an ice-crystal templating approach to simultaneously tailor the two mass transfer channels of GO membranes, i.e., nanochannels originated from the interlayer spacing and microporous defects arising from poorly stacking of nanosheets. The tunability of the ice-crystal templating strategy was verified by low-field nuclear magnetic resonance (LF-NMR) coupled with X-ray diffraction patterns technique. The result demonstrated that the interlayer spacing can be precisely tuned from 7.5 to 9.3 A while the volume of microporous defects can be adjusted from 2.9% to 24.6%. Thus, the optimized GO membrane (M2) was utilized for desalination of dye/NaCl mixtures and accomplished a high separation performance, for example, high water permeability of similar to 22.6 LMH/bar (10-fold enhancement compared with traditional GO membranes), 100% rejection to EB dyes, 19% rejection to NaCl, and long-term running stability (180 h). Therefore, the innovative ice-crystal templating fabrication techniques opens the door for the design of high-efficiency 2D material-based membranes. (C) 2021 Elsevier Ltd. All rights reserved.
关键词 ：
Ice-crystal templating Ice-crystal templating Dye/salt separation Dye/salt separation Interlayer spacing Interlayer spacing Graphene oxide membrane Graphene oxide membrane
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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 [J]. | CARBON , 2021 , 183 : 119-127 . |
| 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" . | CARBON 183 (2021) : 119-127 . |
| 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 . | CARBON , 2021 , 183 , 119-127 . |
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摘要 ：
Incorporating hydrophilic nanomaterial fillers into a polymeric matrix enables a high-performance ultrafiltration membrane. 2D Ti3C2TX nanosheets are promising candidates due to their hydrophilic nature and good dispersion ability in the organic solvent. In this study, novel polysulfate (PSE)/Ti3C2TX ultrafiltration membranes were prepared by non-solvent induced phase separation (NIPS) method. The phase inversion process of the PSE/Ti3C2TX casting membranes was visualized. Ti3C2TX nanosheets could tune the phase inversion process effectively and promote the phase inversion speed with an ultralow content of 0.05 wt%. As a result, the hydrophilic property and porosity of PSE/Ti3C2TX membrane could be improved. The skin layer thickness was significantly reduced, resulting in saliently ultrafiltration performance, i.e., a pure water flux (PWF) of 685 L*m(-2)*h(-1) (LMH) with a bovine serum albumin (BSA) rejection of 97%. The proposed ultralow Ti3C2TX doping in the casting solutions method offers a versatile platform to manipulate the phase inversion progress during the industrially NIPS process, and enhanced the separation performance of ultrafiltration membranes.
关键词 ：
High-performance UF membrane High-performance UF membrane Ti3C2TX nanosheets Ti3C2TX nanosheets Polysulfate Polysulfate
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| GB/T 7714 | Zhou, Jing-Yuan , Yin, Ming-Jie , Wang, Zhi-Peng et al. Ultralow Ti3C2TX doping polysulfate membrane for high ultrafiltration performance [J]. | JOURNAL OF MEMBRANE SCIENCE , 2021 , 637 . |
| MLA | Zhou, Jing-Yuan et al. "Ultralow Ti3C2TX doping polysulfate membrane for high ultrafiltration performance" . | JOURNAL OF MEMBRANE SCIENCE 637 (2021) . |
| APA | Zhou, Jing-Yuan , Yin, Ming-Jie , Wang, Zhi-Peng , Wang, Naixin , Qin, Zhenping , An, Quan-Fu . Ultralow Ti3C2TX doping polysulfate membrane for high ultrafiltration performance . | JOURNAL OF MEMBRANE SCIENCE , 2021 , 637 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Excessive CO2 emissions arising from fossil energy utilization pose severe threats to the environment, climate, and biological species. To this end, high-efficiency separation membranes have been developed to mitigate emerging challenges. Bisphenol A ethoxylate diacrylate (BPA) and poly(ethylene glycol) methyl ether acrylate (PEGMEA) were UV-cross-linked in the presence of low molecular weight poly(ethylene glycol) dimethyl ether (PEGDME) to prepare high-performance CO2 capture membranes in a green way. During the entire membrane fabrication process, no additional solvent was involved and no waste of membrane materials occurred, resulting in a green process. The such-prepared membrane presents an outstanding CO2 permeability of 4883 Barrer, a new record for poly(ethylene oxide) membranes, with a high CO2/N-2 ideal selectivity of 43 due to the cooperative contribution of BPA and PEGDME. The unprecedented separation performance of our manufactured membrane is even higher than that of the 2019 CO2/N-2 upper bound. Considering the rapid, cost-effective, and green fabrication process, our membrane potentially offers a dramatic advantage in alleviating the current greenhouse gas issue and shows great promise for practical applications.
关键词 ：
gas separation membranes gas separation membranes CO2/N-2 separation CO2/N-2 separation CO2 capture CO2 capture photo-cross-linking photo-cross-linking PEO membranes PEO membranes membrane microstructures membrane microstructures
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| GB/T 7714 | Sun, Wei-Shi , Yin, Ming-Jie , Zhang, Wen-Hai et al. Green Techniques for Rapid Fabrication of Unprecedentedly High-Performance PEO Membranes for CO2 Capture [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2021 , 9 (30) : 10167-10175 . |
| MLA | Sun, Wei-Shi et al. "Green Techniques for Rapid Fabrication of Unprecedentedly High-Performance PEO Membranes for CO2 Capture" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9 . 30 (2021) : 10167-10175 . |
| APA | Sun, Wei-Shi , Yin, Ming-Jie , Zhang, Wen-Hai , Li, Shuo , Wang, Naixin , An, Quan-Fu . Green Techniques for Rapid Fabrication of Unprecedentedly High-Performance PEO Membranes for CO2 Capture . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2021 , 9 (30) , 10167-10175 . |
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摘要 ：
Functional membranes generally wear out when applying in harsh conditions such as a strong acidic environment. In this work, high acid-resistance, long-lasting, and low-cost functional membranes are prepared from engineered hydrogen-bonding and pH-responsive supramolecular nanoparticle materials. As a proof of concept, the prepared membranes for dehydration of alcohols are utilized. The synthesized membranes have achieved a separation factor of 3000 when changing the feed solution pH from 7 to 1. No previous reports have demonstrated such unprecedentedly high-record separation performance (pervaporation separation index is around 1.1 x 10(7) g m(-2) h(-1)). More importantly, the engineered smart membrane possesses fast self-repairing ability (48 h) that is inherited from the dynamic hydrogen bonds between the hydroxyl groups of polyacrylic acid and carbonyl groups of polyvinylpyrrolidone. To this end, the designed supramolecular materials offer the membrane community a new material type for preparing high acid resistance and long-lasting membranes for harsh environmental cleaning applications.
关键词 ：
acid-resistance membrane acid-resistance membrane hydrogen bond hydrogen bond self-healing materials self-healing materials supramolecular nanoparticle materials supramolecular nanoparticle materials molecule separation molecule separation
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| GB/T 7714 | Han, Wang , Yin, Ming-Jie , Zhang, Wen-Hai et al. Acid-Resistance and Self-Repairing Supramolecular Nanoparticle Membranes via Hydrogen-Bonding for Sustainable Molecules Separation [J]. | ADVANCED SCIENCE , 2021 , 8 (23) . |
| MLA | Han, Wang et al. "Acid-Resistance and Self-Repairing Supramolecular Nanoparticle Membranes via Hydrogen-Bonding for Sustainable Molecules Separation" . | ADVANCED SCIENCE 8 . 23 (2021) . |
| APA | Han, Wang , Yin, Ming-Jie , Zhang, Wen-Hai , Liu, Zhi-Jie , Wang, Naixin , Yong, Ken Tye et al. Acid-Resistance and Self-Repairing Supramolecular Nanoparticle Membranes via Hydrogen-Bonding for Sustainable Molecules Separation . | ADVANCED SCIENCE , 2021 , 8 (23) . |
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