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学者姓名：安全福
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Abstract ：
Organic solvent nanofiltration (OSN) plays important roles in pharmaceutical ingredients purification and solvent recovery. However, the low organic solvent permeance under cross-flow operation of OSN membrane hampers their industrial applications. Herein, we report the construction of coffee-ring structured membrane featuring high OSN permeance. A water-insoluble crystal monomer that dissolved in EtOH/H2O mixed solvent was designed to react with trimesoyl chloride via interfacial polymerization. Owing to the diffusion of EtOH to n-hexane, coffee-ring nanostructure on the support membrane appeared, which served as the template for construction of coffee-ring structured membrane. The optimal nanostructured membrane demonstrated 2.6-fold enhancement in the effective surface area with reduced membrane thickness. Resultantly, the membrane afforded a 2.7-fold enhancement in organic solvent permeance, e.g., similar to 13 LMH/bar for MeOH, without sacrificing the rejection ability. Moreover, due to the rigid monomer structure, the fabricated membrane shows distinctive running stability in active pharmaceutical ingredients purification and the ability for concentration of medicines.
Keyword ：
interfacial polymerization interfacial polymerization organic solvent nanofiltration organic solvent nanofiltration coffee ring coffee ring
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| GB/T 7714 | Jin, Cheng-Gang , Zhang, Wen-Hai , Tian, Na et al. Fabrication of Coffee-Ring Nanostructured Membranes for Organic Solvent Nanofiltration [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (31) . |
| MLA | Jin, Cheng-Gang et al. "Fabrication of Coffee-Ring Nanostructured Membranes for Organic Solvent Nanofiltration" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 63 . 31 (2024) . |
| APA | Jin, Cheng-Gang , Zhang, Wen-Hai , Tian, Na , Wu, Bin , Yin, Ming-Jie , An, Quan-Fu . Fabrication of Coffee-Ring Nanostructured Membranes for Organic Solvent Nanofiltration . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (31) . |
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Abstract ：
This study leverages the ancient craft of weaving to prepare membranes that can effectively treat oil/water mixtures, specifically challenging nanoemulsions. Drawing inspiration from the core-shell architecture of spider silk, we have engineered fibers, the fundamental building blocks for weaving membranes, that feature a mechanically robust core for tight weaving, coupled with a CO2-responsive shell that allows for on-demand wettability adjustments. Tightly weaving these fibers produces membranes with ideal pores, achieving over 99.6% separation efficiency for nanoemulsions with droplets as small as 20 nm. They offer high flux rates, on-demand self-cleaning, and can switch between sieving oil and water nanodroplets through simple CO2/N-2 stimulation. Moreover, weaving can produce sufficiently large membranes (4800 cm(2)) to assemble a module that exhibits long-term stability and performance, surpassing state-of-the-art technologies for nanoemulsion separations, thus making industrial application a practical reality.
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| GB/T 7714 | Wang, Yangyang , Villalobos, Luis Francisco , Liang, Lijun et al. Scalable weaving of resilient membranes with on-demand superwettability for high-performance nanoemulsion separations [J]. | SCIENCE ADVANCES , 2024 , 10 (26) . |
| MLA | Wang, Yangyang et al. "Scalable weaving of resilient membranes with on-demand superwettability for high-performance nanoemulsion separations" . | SCIENCE ADVANCES 10 . 26 (2024) . |
| APA | Wang, Yangyang , Villalobos, Luis Francisco , Liang, Lijun , Zhu, Bo , Li, Jian , Chen, Chen et al. Scalable weaving of resilient membranes with on-demand superwettability for high-performance nanoemulsion separations . | SCIENCE ADVANCES , 2024 , 10 (26) . |
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Abstract ：
The 2D graphene oxide (GO) is promising for CO2 2 adsorption, benefitting from its theoretically high specific surface area and abundant oxygen-containing groups. However, the GO nanosheets aggregation renders the loss of CO2 2 adsorption site, reducing the CO2 2 adsorption capability. To tackle this issue, we propose of tailoring physical and chemical structures of the GO nanosheet by etching and oxidation, which concurrently enhance the specific surface area and oxygen-containing functional groups. The etching step creates additional in-plane nanopores in the GO nanosheet and uncovers the inaccessible sites on the GO nanosheet. The oxidation step produces more oxygen-containing groups, i.e., active sites, to intensify the CO2 2 adsorption of GO nanosheets. Resultantly, through enhancing pore volume and interaction between CO2 2 and oxygenic functional group, the adsorption capacity of CO2 2 is promoted. As such, the CO2 2 adsorption capability of GO nanosheets is significantly enhanced. The optimized oxidized porous GO nanosheets are employed for CO2 2 adsorption after Ca2+ 2 + cross- linking, which realizes a high CO2 2 adsorption capability of 2.5 mmol/g at 298 K, 1 bar. Together with its prominent running stability, the fabricated porous GO-based adsorbents show great potential for CO2 2 capture to mitigate the current greenhouse gas dilemma.
Keyword ：
Graphene oxide Graphene oxide Ionic crosslinking Ionic crosslinking CO2 capture CO2 capture Chemical etching Chemical etching Gas adsorbent Gas adsorbent
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| GB/T 7714 | Liu, Zhi-Jie , Zhang, Wen-Hai , Yin, Ming-Jie et al. Tailored GO nanosheets for porous framework to high CO2 adsorption [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
| MLA | Liu, Zhi-Jie et al. "Tailored GO nanosheets for porous framework to high CO2 adsorption" . | CHEMICAL ENGINEERING JOURNAL 498 (2024) . |
| APA | Liu, Zhi-Jie , Zhang, Wen-Hai , Yin, Ming-Jie , Ren, Yun-Han , An, Quan-Fu . Tailored GO nanosheets for porous framework to high CO2 adsorption . | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
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Abstract ：
大学生化工实验大赛是化工领域中一项重要的竞赛活动，其主要目标是通过比赛的形式激发学生的学习热情，培养其在化工领域的实践能力和创新意识。文章基于北京工业大学应用化学专业学生参加大学生化工实验大赛的情况，探讨“以赛促学、以赛促教、赛教融合”的新培养模式，讨论化工原理及化工实验课的课程教学改革和教师团队建设，旨在实现化工类专业创新型人才的培养。
Keyword ：
教学改革 教学改革 人才培养 人才培养 团队建设 团队建设 化工实验大赛 化工实验大赛
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| GB/T 7714 | 殷明杰 , 沈玥 , 张芊如 et al. 基于化工实验大赛的人才培养及课程教学改革探索 [J]. | 化纤与纺织技术 , 2024 , 53 (01) : 222-224 . |
| MLA | 殷明杰 et al. "基于化工实验大赛的人才培养及课程教学改革探索" . | 化纤与纺织技术 53 . 01 (2024) : 222-224 . |
| APA | 殷明杰 , 沈玥 , 张芊如 , 安全福 . 基于化工实验大赛的人才培养及课程教学改革探索 . | 化纤与纺织技术 , 2024 , 53 (01) , 222-224 . |
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Abstract ：
The use of pervaporation membranes has shown great potential in the extraction of bioethanol. However, a simple, continuous, and controllable alcohol perm-selective membrane manufacturing process is needed for practical applications. In this study, the slot-die coating technique was utilized to deposit low-viscosity vinylpolydimethylsiloxane (vinyl-PDMS) and crosslinker onto a porous substrate. A defect-free separation layer could be created within just 20 min, which includes the membrane forming and drying process, due to the rapid hydrosilylation reaction between vinyl-PDMS and the crosslinker. Therefore, the efficient fabrication process is suitable for continuous roll-to-roll industrial production. Additionally, by optimizing the slot-die parameters, the thickness of the separation layer could be regulated from 0.4 to 15 mu m. The obtained vinyl-PDMS composite membrane demonstrated a total flux of 2.8 kg m- 2 h- 1 and a separation factor of 10.3 for 5 wt% ethanol/water mixture at 60 degrees C.
Keyword ：
Vinyl-PDMS Vinyl-PDMS Slot-die coating Slot-die coating Ethanol/water separation Ethanol/water separation Pervaporation Pervaporation
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| GB/T 7714 | Wang, Fengkai , Shen, Mengxin , Li, Zhangan et al. Slot-die coating of vinyl-PDMS composite membranes for alcohol perm-selective pervaporation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 709 . |
| MLA | Wang, Fengkai et al. "Slot-die coating of vinyl-PDMS composite membranes for alcohol perm-selective pervaporation" . | JOURNAL OF MEMBRANE SCIENCE 709 (2024) . |
| APA | Wang, Fengkai , Shen, Mengxin , Li, Zhangan , Zhu, Yating , Li, Jie , Wang, Naixin et al. Slot-die coating of vinyl-PDMS composite membranes for alcohol perm-selective pervaporation . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 709 . |
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Abstract ：
Hydrogel-based physical dual-encryption typically relies on the reversible shape-deformation of polymer chains for the decryption. However, the stored information is confronted by indecipherability at the microscale because the intrinsic relaxation of polymer chains would disrupt the fidelity of encoded information. Inspired by female Doryteuthis opalescens squid's camouflage strategy (i.e., switching a stripe on its mantle from nearly transparent to opaque white), we devised a reversible transmittance-changeable hydrogel layer to fully cover the monoencrypted information layer for dual-encryption. The micro-structured hydrogel was manufactured via 3D printing to encode the information, which can be decoded by UV-induced fluorescent emission. Then, the white camouflage hydrogel was constructed to conceal the mono-encrypted layer, which will not affect the information encoding layer during the reversible polymer chain mobility. The information can be decoded with alkaline solution and UV irradiation in a rapid speed, i.e., in 4 min, with good reusability. Moreover, the information was accurately unveiled even at microscale resolution, holding great promise for high-level encryption at the device level.
Keyword ：
Hydrogel device Hydrogel device Carbon dot Carbon dot 3D printing 3D printing Hydrogen bond Hydrogen bond Dual encryption Dual encryption
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| GB/T 7714 | Zhang, Jia-Yue , Lv, Tian-Run , Xue, Yi-Han et al. 3D printed micro-structured hydrogel device with transmittance-changeable soft 'armor' camouflage for dual-encryption [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 495 . |
| MLA | Zhang, Jia-Yue et al. "3D printed micro-structured hydrogel device with transmittance-changeable soft 'armor' camouflage for dual-encryption" . | CHEMICAL ENGINEERING JOURNAL 495 (2024) . |
| APA | Zhang, Jia-Yue , Lv, Tian-Run , Xue, Yi-Han , Zhang, Wen-Hai , Yin, Ming-Jie , An, Quan-Fu . 3D printed micro-structured hydrogel device with transmittance-changeable soft 'armor' camouflage for dual-encryption . | CHEMICAL ENGINEERING JOURNAL , 2024 , 495 . |
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Abstract ：
Mixed matrix membranes (MMMs), conjugating the advantages of flexible processing-ability of polymers and high-speed mass transfer of porous fillers, are recognized as the next-generation high-performance CO2 capture membranes for solving the current global climate challenge. However, controlling the crystallization of porous metal-organic frameworks (MOFs) and thus the close stacking of MOF nanocrystals in the confined polymer matrix is still undoable, which thus cannot fully utilize the superior transport attribute of MOF channels. In this study, the "confined swelling coupled solvent-controlled crystallization" strategy is employed for well-tailoring the in-situ crystallization of MOF nanocrystals, realizing rapid (<5 min) construction of defect-free freeway channels for CO2 transportation in MMMs due to the close stacking of MOF nanocrystals. Consequently, the fabricated MMMs exhibit approximately fourfold enhancement in CO2 permeability, i.e., 2490 Barrer with a CO2/N-2 selectivity of 37, distinctive antiplasticization merit, as well as long-term running stability, which is at top-tier level, enabling the large-scale manufacture of high-performance MMMs for gas separation.
Keyword ：
CO2 capture CO2 capture ZIF-8 ZIF-8 antiplasticization antiplasticization confined swelling coupled solvent-controlled crystallization confined swelling coupled solvent-controlled crystallization mixed matrix membranes mixed matrix membranes
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| GB/T 7714 | Li, Shuo , Sun, Yu-Jie , Wang, Zhao-Xu et al. Rapid Fabrication of High-Permeability Mixed Matrix Membranes at Mild Condition for CO2 Capture [J]. | SMALL , 2023 , 19 (19) . |
| MLA | Li, Shuo et al. "Rapid Fabrication of High-Permeability Mixed Matrix Membranes at Mild Condition for CO2 Capture" . | SMALL 19 . 19 (2023) . |
| APA | Li, Shuo , Sun, Yu-Jie , Wang, Zhao-Xu , Jin, Cheng-Gang , Yin, Ming-Jie , An, Quan-Fu . Rapid Fabrication of High-Permeability Mixed Matrix Membranes at Mild Condition for CO2 Capture . | SMALL , 2023 , 19 (19) . |
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Abstract ：
Zwitterionic nanofiltration membranes (ZNFMs) are conducive to achieve efficient antibiotic/monovalent salt separation. However, preparation of ZNFMs through interfacial polymerization is limited by electrostatic interaction between zwitterions. In this study, inorganic salts were applied to regulate reactions in interfacial polymerization, such as interfacial reaction and thermal cross-linking reaction. The electrostatic interaction between zwitterions was broken by the inorganic salts to promote cross-linking of zwitterionic polyamide net-works. Therefore, an intact and ultrathin separation layer was formed on substrates. The obtained ZNFMs exhibited a high permeance of 21.6 L m- 2 h-1 bar-1, while the rejections for erythromycin (ERY) and NaCl were 97.5% and 8.5%, respectively. Moreover, the ZNFMs also had an exceptional anti-fouling property, which showed a great potential in antibiotic/monovalent salt separation.
Keyword ：
Interfacial polymerization Interfacial polymerization Fouling resistance Fouling resistance Reactive regulation Reactive regulation Ion transport Ion transport Heat treatment Heat treatment
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| GB/T 7714 | Wu, Bin , Wang, Naixin , Shen, Yue et al. Inorganic salt regulated zwitterionic nanofiltration membranes for antibiotic/monovalent salt separation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2023 , 666 . |
| MLA | Wu, Bin et al. "Inorganic salt regulated zwitterionic nanofiltration membranes for antibiotic/monovalent salt separation" . | JOURNAL OF MEMBRANE SCIENCE 666 (2023) . |
| APA | Wu, Bin , Wang, Naixin , Shen, Yue , Jin, Cheng-Gang , An, Quan-Fu . Inorganic salt regulated zwitterionic nanofiltration membranes for antibiotic/monovalent salt separation . | JOURNAL OF MEMBRANE SCIENCE , 2023 , 666 . |
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Abstract ：
Mixed-matrix membranes (MMMs) have the potential for energy-efficient gas separation by matching the superior mass transfer and anti-plasticization properties of the fillers with processability and scaling up features of the polymers. However, construction of high-performance MMMs has been prohibited due to low filler-loading and the existence of interfacial defects. Here, high MOF-loaded, i.e., 55 wt %, MMMs are developed by a 'dormancy and double-activation' (DDA) strategy. High MOF precursor concentration suppresses crystallization in the membrane casting solution, realizing molecular level mixing of all components. Then, the polymeric matrix was formed with uniform encapsulation of MOF nutrients. Subsequently, double-activation was employed to induce MOF crystallization: the alkali promotes MOFs nucleation to harvest small porous nanocrystals while excessive ligands activate the metal ions to enhance the MOFs conversion. As such, quasi-semi-continuous mass transfer channels can be formed in the MMMs by the connected MOFs nanocrystals to boost the gas permeability. The optimized MMM shows significantly ameliorated CO2 permeability, i.e., 2841 Barrer, five-fold enhancement compared with pristine polymer membrane, with a good CO2/N-2 selectivity of 36. Besides, the nanosized MOFs intensify their interaction with polymer chains, endowing the MMMs with good anti-plasticization behaviour and stability, which advances practical application of MMMs in carbon capture.
Keyword ：
CO2 Capture CO2 Capture Mixed Matrix Membranes Mixed Matrix Membranes Ultrahigh ZIF-8 Loadings Ultrahigh ZIF-8 Loadings Quasi-Semi-Continuous Mass Transfer Channels Quasi-Semi-Continuous Mass Transfer Channels
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| GB/T 7714 | Li, Shuo , Han, Wei-Yao , Wang, Zhao-Xu et al. Dormancy and double-activation strategy for construction of high-performance mixed-matrix membranes [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2023 , 63 (1) . |
| MLA | Li, Shuo et al. "Dormancy and double-activation strategy for construction of high-performance mixed-matrix membranes" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 63 . 1 (2023) . |
| APA | Li, Shuo , Han, Wei-Yao , Wang, Zhao-Xu , Sun, Yu-Jie , Zheng, Zilong , Yin, Ming-Jie et al. Dormancy and double-activation strategy for construction of high-performance mixed-matrix membranes . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2023 , 63 (1) . |
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Abstract ：
蛋白污染严重制约着聚醚砜(PES)膜的实际应用，提高膜表面的亲水性是降低蛋白吸附现象的有效方法.在等离子体处理PES膜的表面进行了一步沉积接枝聚-多巴胺甲基丙烯酰胺-2-甲基丙烯酰氧乙基磷酸胆碱(DMA-MPC),然后考察了改性膜的亲水性与抗污染性.研究结果表明，经过等离子处理，使PES膜表面增加了含胺基的反应位点，其与DMA-MPC反应后形成稳定的共价键，在最优改性条件下PES改性膜的水接触角可降至37.7°±1°,在保持牛血清蛋白(BSA)高截留率的同时，通量提高至1 060±30 L/(m~2·h·MPa),通量保持率从47%±1%提高至73%±1%.改性膜在循环测试中展现出优异的稳定性，为减少PES膜表面蛋白吸附提供了新的方法.
Keyword ：
抗蛋白吸附 抗蛋白吸附 两性离子共聚物 两性离子共聚物 亲水改性 亲水改性 多巴胺衍生物 多巴胺衍生物 聚醚砜 聚醚砜
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| GB/T 7714 | 杨紫云 , 陈聪 , 刘巧鸿 et al. DMA-MPC共聚物亲水改性PES膜及抗蛋白吸附性能研究 [J]. | 膜科学与技术 , 2023 , 43 (04) : 1-9,36 . |
| MLA | 杨紫云 et al. "DMA-MPC共聚物亲水改性PES膜及抗蛋白吸附性能研究" . | 膜科学与技术 43 . 04 (2023) : 1-9,36 . |
| APA | 杨紫云 , 陈聪 , 刘巧鸿 , 李雅倩 , 彭跃莲 , 安全福 . DMA-MPC共聚物亲水改性PES膜及抗蛋白吸附性能研究 . | 膜科学与技术 , 2023 , 43 (04) , 1-9,36 . |
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