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学者姓名：王乃鑫
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Abstract ：
Pervaporation is a promising desalination technology. Developing high-performance and stable pervaporation membranes with high continuity structure remains a significant challenge. This study reports the development of a novel layered double hydroxide (LDH) nanosheet composite membrane fabricated using a hydroxyl salt induction method. This approach facilitated the in-situ nucleation and growth of the CoAl-LDH nanosheets on polyvinylidene fluoride (PVDF) substrate, reducing precursor concentration and enhancing preparation efficiency. The resulting cross-compatible architecture closely integrated the dense LDH nanosheet separation layer with the flexible PVDF support. The microstructure and morphology of the hydroxyl salt layer and its transformed CoAl-LDH composite membrane were comprehensively investigated. The optimized membrane was applied for pervaporation desalination (3 wt% NaCl, 50 degrees C), achieving a high flux of 38.4 kgm(-2)h(-1) and exceptional NaCl rejection of 99.9 %. It also demonstrated excellent tolerance to a wide salinity range, maintaining 99.6-99.9 % rejection even at 20 wt% NaCl, while the flux remained stable at 26.7 kgm(-2)h(-1). Long-term testing confirmed the consistent separation performance and operational stability, underscoring the great potential of this advanced membrane material for practical pervaporation desalination applications.
Keyword ：
Hydroxyl salt layer Hydroxyl salt layer Pervaporation Pervaporation Layered double hydroxide Layered double hydroxide Composite membrane Composite membrane Desalination Desalination
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| GB/T 7714 | Yang, Yuye , Sun, Hao , He, Yafei et al. Hydroxy salt induced CoAl-LDH nanosheet composite membrane for pervaporation desalination [J]. | DESALINATION , 2024 , 592 . |
| MLA | Yang, Yuye et al. "Hydroxy salt induced CoAl-LDH nanosheet composite membrane for pervaporation desalination" . | DESALINATION 592 (2024) . |
| APA | Yang, Yuye , Sun, Hao , He, Yafei , Li, Jie , Wang, Naixin , An, Quan-Fu . Hydroxy salt induced CoAl-LDH nanosheet composite membrane for pervaporation desalination . | DESALINATION , 2024 , 592 . |
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Abstract ：
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.
Keyword ：
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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Abstract ：
Zeolitic imidazolate frameworks (ZIFs) have been attracting intensive attention in membrane separation fields because of their ultrahigh specific surface areas, well-defined apertures, and variable topological characteristics. However, the aperture sizes of ZIFs are smaller than the kinetic diameters of most organic solvent molecules, which impedes their applications in organic solvent separation. Herein, we develop a thermal annealing-derived methodology for defect engineering on the ZIF-67 membrane. This post-synthetic modification not only expanded the aperture size of ZIF-67 but also repaired intercrystalline cracks in the polycrystalline ZIF-67 layer. By controlling the thermal annealing conditions, the permeability of the polycrystalline ZIF-67 membrane toward organic solvent nanofiltration was enhanced by two times. Moreover, the annealed ZIF-67 membrane showed a high rejection of more than 99.6% for dyes (Evans blue) and pharmaceutical molecules (tetracycline, vitamin B12). This work provides an avenue for the controllable modification of ZIFs membranes to broaden their applications.
Keyword ：
Organic solvent nanofiltration Organic solvent nanofiltration Thermal annealing Thermal annealing MOFs membranes MOFs membranes Defect engineering Defect engineering
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| GB/T 7714 | Sun, Hao , Li, Xiaoting , Wang, Naixin et al. Defect engineering on zeolitic imidazolate framework membrane via thermal annealing for organic solvent nanofiltration [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 310 . |
| MLA | Sun, Hao et al. "Defect engineering on zeolitic imidazolate framework membrane via thermal annealing for organic solvent nanofiltration" . | SEPARATION AND PURIFICATION TECHNOLOGY 310 (2023) . |
| APA | Sun, Hao , Li, Xiaoting , Wang, Naixin , An, Quan-Fu . Defect engineering on zeolitic imidazolate framework membrane via thermal annealing for organic solvent nanofiltration . | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 310 . |
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Abstract ：
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.
Keyword ：
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 . |
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Abstract ：
<正>近日，国际期刊《德国应用化学》（Angew.Chem.Int.Ed.,IF:16.823）在线发表了北京工业大学王乃鑫教授与新疆大学孟洪教授合作完成的题目为“Facile Fabrication of a Continuous ZIF-67 Membrane for Efficient Azeotropic Organic Solvent Mixture Separation”的学术论文．《Angewandte Chemie International Edition》是目前国际化学领域最具影响力的综合性刊物之一，且为中科院TOP期刊．共沸混合物的分离在化学工业中应用广泛，开发新型高效的共沸物分离技术仍面临巨大挑战．膜分离技术可以在较低温度下进行共沸物的分离，并且不需要添加挟带剂，
Keyword ：
共沸物 共沸物 MOF MOF 北京工业大学 北京工业大学 重要进展 重要进展
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| GB/T 7714 | 王乃鑫 . 北京工业大学在MOF膜分离共沸物方面取得重要进展 [J]. | 膜科学与技术 , 2023 , 43 (01) : 153 . |
| MLA | 王乃鑫 . "北京工业大学在MOF膜分离共沸物方面取得重要进展" . | 膜科学与技术 43 . 01 (2023) : 153 . |
| APA | 王乃鑫 . 北京工业大学在MOF膜分离共沸物方面取得重要进展 . | 膜科学与技术 , 2023 , 43 (01) , 153 . |
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Abstract ：
Azeotropic organic solvent mixture separation is common in the chemical industry but extremely difficult. Zeolitic imidazolate framework-67 (ZIF-67) shows great potential in organic solvent mixture separation due to its rigid micropores and excellent stability. However, due to the fast nucleation rate, it is a great challenge to prepare continuous ZIF-67 membrane layers with ultrathin thickness. In this study, a hydroxy salt layer with high inducible activity was synthesized as a precursor on different porous substrates to prepare ZIF-67 membranes at room temperature. The precursor layer enables an intact ZIF-67 membrane with an ultrathin thickness of 176 +/- 12 nm. The experimental and simulation results confirmed that the size sieving through the pore windows and the preferential adsorption of polar solvent molecules provide the ZIF-67 membrane an unprecedented separation performance such as high separation factors and fluxes, for four types of azeotropic organic solvent mixtures.
Keyword ：
Hydroxy Salt Hydroxy Salt Membrane Separation Membrane Separation Azeotropic Organic Mixtures Azeotropic Organic Mixtures Metal-Organic Frameworks (MOFs) Metal-Organic Frameworks (MOFs)
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| GB/T 7714 | Sun, Hao , Wang, Fengkai , Li, Xiaoting et al. Facile Fabrication of a Continuous ZIF-67 Membrane for Efficient Azeotropic Organic Solvent Mixture Separation [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2023 , 62 (15) . |
| MLA | Sun, Hao et al. "Facile Fabrication of a Continuous ZIF-67 Membrane for Efficient Azeotropic Organic Solvent Mixture Separation" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 62 . 15 (2023) . |
| APA | Sun, Hao , Wang, Fengkai , Li, Xiaoting , Caro, Juergen , Meng, Hong , Wang, Naixin et al. Facile Fabrication of a Continuous ZIF-67 Membrane for Efficient Azeotropic Organic Solvent Mixture Separation . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2023 , 62 (15) . |
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Abstract ：
一种用于优先透醇的聚合物/MOF衍生物复合膜的制备方法，属于复合材料和渗透汽化技术领域。将具有适宜粘度的含硅聚合物旋涂在MOF衍生物膜上表面和缝隙处，然后经真空干燥后制得聚合物/MOF衍生物复合膜。其中MOF衍生物膜是通过原位生长以及随后采用硫代乙酰胺(TAA)进行原位硫化两步法所制备。本发明制备方法简单可控，所制备的聚合物/MOF衍生物复合膜具有超薄的厚度，并有效防止聚合物孔渗，此外基于MOF衍生物中超快的渗透路径，在60℃分离5wt.％乙醇‑水溶液时，复合膜表现出超高的渗透汽化性能和稳定性，有效改善了分离膜领域此消彼长trade‑off的瓶颈问题。
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| GB/T 7714 | 王乃鑫 , 王丰恺 , 孙皓 et al. 一种用于优先透醇的聚合物/MOF衍生物复合膜的制备方法 : CN202310836526.2[P]. | 2023-07-09 . |
| MLA | 王乃鑫 et al. "一种用于优先透醇的聚合物/MOF衍生物复合膜的制备方法" : CN202310836526.2. | 2023-07-09 . |
| APA | 王乃鑫 , 王丰恺 , 孙皓 , 沈梦鑫 , 李杰 , 安全福 . 一种用于优先透醇的聚合物/MOF衍生物复合膜的制备方法 : CN202310836526.2. | 2023-07-09 . |
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Abstract ：
一种具有取向性的单颗粒层MOF复合膜及制备方法，属于膜制备技术领域，首先利用调制剂合成具有规则形貌且粒径均一的MOF晶体颗粒，然后将其配制为MOF分散液；使用旋涂法将MOF分散液涂覆于多孔基底的表面后干燥一定时间得到具有取向性的单颗粒MOF层。然后将一定浓度的聚合物溶液通过旋涂法涂覆于膜表面以填充单颗粒MOF晶体的间隙。最后通过热交联得到单颗粒层取向MOF复合膜，该方法可以有效构建具有贯通孔道结构的新型MOF复合膜，并且所得到的膜可用于有机溶剂混合物等高耗能、难分离体系的高效分离。
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| GB/T 7714 | 王乃鑫 , 孙皓 , 程子洋 et al. 一种具有取向性的单颗粒层MOF复合膜及制备方法 : CN202310792134.0[P]. | 2023-06-29 . |
| MLA | 王乃鑫 et al. "一种具有取向性的单颗粒层MOF复合膜及制备方法" : CN202310792134.0. | 2023-06-29 . |
| APA | 王乃鑫 , 孙皓 , 程子洋 , 王湘琼 , 王丰恺 , 安全福 . 一种具有取向性的单颗粒层MOF复合膜及制备方法 : CN202310792134.0. | 2023-06-29 . |
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Abstract ：
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.
Keyword ：
Pervaporation Pervaporation Organic-inorganic hybridization Organic-inorganic hybridization Acetic acid dehydration Acetic acid dehydration 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 . |
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Abstract ：
以聚偏氟乙烯(PVDF)中空纤维超滤膜为基膜，构建了具有U型结构的中空纤维膜组件.采用浸渍-提拉法将聚醚酰胺嵌段共聚物(PEBA)组装到PVDF膜表面，获得了具有优先透醇性能的PEBA/PVDF中空纤维渗透汽化复合膜.分析和表征了组装前后PVDF膜表面的形貌和化学性质，研究了PEBA质量分数、干燥温度、干燥时间和提拉速率等制备条件对复合膜性能的影响，考察了进料温度和进料流速等操作条件的影响.此外，考察了具有U型结构的PEBA/PVDF中空纤维渗透汽化复合膜的稳定性以及对ABE发酵液模拟体系的分离性能.结果表明，PEBA/PVDF中空纤维复合膜在分离质量分数1%正丁醇/水体系时，渗透通量为2 7...
Keyword ：
渗透汽化 渗透汽化 U型中空纤维复合膜 U型中空纤维复合膜 PEBA PEBA 优先透醇 优先透醇
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| GB/T 7714 | 任家硕 , 秦振平 , 王乃鑫 et al. U型PEBA中空纤维渗透汽化膜组件及其优先透醇性能 [J]. | 膜科学与技术 , 2022 , 42 (04) : 1-8 . |
| MLA | 任家硕 et al. "U型PEBA中空纤维渗透汽化膜组件及其优先透醇性能" . | 膜科学与技术 42 . 04 (2022) : 1-8 . |
| APA | 任家硕 , 秦振平 , 王乃鑫 , 刘通 , 倪红旭 , 安全福 . U型PEBA中空纤维渗透汽化膜组件及其优先透醇性能 . | 膜科学与技术 , 2022 , 42 (04) , 1-8 . |
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