Query：
学者姓名：安全福
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
The heavy metal ions pollution aggravates the clean water shortage crisis. The polyamide nanofiltration membranes fabricated via interfacial polymerization are potential for removal of heavy metal ions, but their negatively charge surface renders low rejection efficiency. To solve the issue, we proposed a surface charge conversion method by chemical crosslinking the positively charged polyethyleneimine (PEI) on the thin polyamide nanofiltration membrane. The such prepared positively charged nanofiltration membrane presents enhanced rejection to heavy metal ions while maintaining the high water permeance. After optimization of the membrane fabrication conditions, the PEI-modified membrane demonstrates a pure water permeance of 7 center dot 2 L center dot m(-2)center dot h(-1 center dot)bar(-1) with >95 % rejection to Cu2+ and other heavy metal ions. Moreover, the membrane could maintain the high performance to mixed metal ion aqueous solutions. Combined with its remarkable stability under high pressure and long-term running, the positively charged membrane has great potential to be deployed for treatment of practical wastewater towards sustainable development via cleaning water and precious metals recovery.
Keyword ：
Positively charged membranes Positively charged membranes Nanofiltration Nanofiltration Surface charge conversion Surface charge conversion Interfacial polymerization Interfacial polymerization Heavy metal ions Heavy metal ions
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wanjiya, Mwema , Jin, Cheng-Gang , Shen, Yue et al. Conversion of membrane surface charge property via post-crosslinking for heavy metal ions removal [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 362 . |
| MLA | Wanjiya, Mwema et al. "Conversion of membrane surface charge property via post-crosslinking for heavy metal ions removal" . | SEPARATION AND PURIFICATION TECHNOLOGY 362 (2025) . |
| APA | Wanjiya, Mwema , Jin, Cheng-Gang , Shen, Yue , Yin, Ming-Jie , An, Quan-Fu . Conversion of membrane surface charge property via post-crosslinking for heavy metal ions removal . | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 362 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The utilization of intermittent clean energy requires high efficient energy storage technologies to minimize energy losses during charge-discharge processes. In this work, ionic covalent organic polymer (iCOP) composite membranes are presented to promote the battery efficiencies of iron-chromium redox flow battery (ICRFB). iCOP powder was synthesized by interfacial polymerization method and the resulting composite membrane possessed superior physicochemical membrane. Sulfonic acid groups in the synthesized iCOP facilitated the proton transportation of the prepared membranes. A hydrogen bond network formed between perfluorinated PEM and iCOP further promoted the proton transportation of the membrane. Meanwhile, the positively charged amino groups under acidic conditions reduced the permeation of Fe3+ and Cr3+ ions due to the Donnan effect. Specifically, proton conductivity of iCOP-8 membrane reached 215 mS cm(-1) at 80 degrees C. Moreover, iCOP-8 demonstrated the lowest permeation rates for both Fe3+ (1.44 x 10(-7) cm s(-1)) and Cr3+ (0.47 x 10(-7) cm s(-1)) among all membranes herein. In terms of the ICRFB efficiencies, a Coulombic efficiency of 97.66 % and energy efficiency of 87.11 % was achieved at a current density of 100 mA cm(-2). The battery also operated stably for over 200 cycles without significant performance degradation (CE: >97.01 %, EE: >86.01 %).
Keyword ：
Proton exchange membrane Proton exchange membrane Ionic covalent organic polymer Ionic covalent organic polymer Nafion Nafion Iron-chromium redox flow battery Iron-chromium redox flow battery Battery efficiencies Battery efficiencies
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Quan , Song, Peng , Zhang, Yi et al. Ionic covalent organic polymer (iCOP) composite membranes with enhanced efficiency for iron-chromium redox flow battery [J]. | JOURNAL OF MEMBRANE SCIENCE , 2025 , 722 . |
| MLA | Wang, Quan et al. "Ionic covalent organic polymer (iCOP) composite membranes with enhanced efficiency for iron-chromium redox flow battery" . | JOURNAL OF MEMBRANE SCIENCE 722 (2025) . |
| APA | Wang, Quan , Song, Peng , Zhang, Yi , Wang, Naixin , An, Quan-Fu . Ionic covalent organic polymer (iCOP) composite membranes with enhanced efficiency for iron-chromium redox flow battery . | JOURNAL OF MEMBRANE SCIENCE , 2025 , 722 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Hydrocarbon proton exchange membranes (PEMs) have been extensively employed in redox flow batteries (RFBs) due to their environmental benefits and ion selectivity towards redox species. However, high cost of polymer monomers and complex synthesis processes continue to hinder the widespread adoption of such PEMs in RFBs. In this work, a series of sulfonated polybenzimidazole membranes (SNPBI-x) are simply designed through direct sulfonation and the corresponding application in iron-chromium redox flow battery (ICRFB) has been verified. The SNPBI-x membrane is composed of rigid polybenzimidazole and naphthalene rings, which not only mitigate the reduction in mechanical properties caused by sulfonic acid groups but also ensure the chemical stability of the membrane during operation. Also, SNPBI-x membrane exhibits relatively high ion exchange capacity (IEC), high water uptake and low swelling ratio compared to Nafion 212. Meanwhile, the permeability of SNPBI-1.42 is notably low, with values of only 0.762 x 10(-7)cm s(-1) for Fe3+ and 0.438 x 10(-7)cm s(-1 )for Cr3+ over 96 h. The high ion selectivity is attributed to the Donnan effect introduced by the protonation of imidazole groups, which enhances the ion barrier properties of the membrane and battery performance. Moreover, optimized SNPBI-1.42 demonstrates the best battery performance among all the membranes tested, achieving a coulombic efficiency (CE) of 97.55 %, an energy efficiency (EE) of 86.88 % and a voltage efficiency (VE) of 89.06 % at 100 mA cm(- 2) . Furthermore, SNPBI-1.42 maintains an EE of over 80 % for more than 1600 cycles in ICRFB, further confirming its superior chemical stability in ICRFB.
Keyword ：
:Iron chromium redox flow battery :Iron chromium redox flow battery Polybenzimidazole Polybenzimidazole Sulfonation reaction Sulfonation reaction Non-fluorinated proton exchange membrane Non-fluorinated proton exchange membrane Ion selectivity Ion selectivity
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Song, Peng , Zhang, Yi , Du, Hongyan et al. Simply designed sulfonated polybenzimidazole membranes for iron-chromium redox flow battery [J]. | JOURNAL OF MEMBRANE SCIENCE , 2025 , 719 . |
| MLA | Song, Peng et al. "Simply designed sulfonated polybenzimidazole membranes for iron-chromium redox flow battery" . | JOURNAL OF MEMBRANE SCIENCE 719 (2025) . |
| APA | Song, Peng , Zhang, Yi , Du, Hongyan , Wang, Quan , An, Quan-Fu . Simply designed sulfonated polybenzimidazole membranes for iron-chromium redox flow battery . | JOURNAL OF MEMBRANE SCIENCE , 2025 , 719 . |
| Export to | NoteExpress RIS BibTex |
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Metal-organic framework (MOF) membranes have emerged as promising candidates for efficient water purification. However, challenges related to limited spatio-temporal control over metal-ligand interactions and inherent film fragility hinder the scale-up and widespread adoption of MOF-based membranes. Here we report a nanoreactor-confined crystallization strategy that enables rapid and roll-to-roll fabrication of high-performance ultra-thin (similar to 25 nm) MOF hybrid membranes (0.33 m x 35 m) at mild conditions. This strategy leverages metal-chelated polydopamine nanoparticles as reactors to grow membranes with hierarchical polymer-MOF interconnected structures that promote remarkable stability against chlorine and varying pH levels, precise solute-solute selectivity and high water permeance. The robustness of the resulting membranes facilitates their assembly into spiral-wound membrane modules (0.4 m2) showing excellent and stable (>30-day testing) separation performance in relevant solute-solute separations such as the purification of pharmaceuticals and dye desalination. The nanoreactor-confined crystallization strategy is compatible with a diverse range of MOFs, paving the way for the scalable manufacturing and applications of their membranes.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Ji, Yan-Li , Gu, Bing-Xin , Huo, Hui-Qian et al. Roll-to-roll fabrication of large-area metal-organic framework-based membranes for high-performance aqueous separations [J]. | NATURE WATER , 2024 , 2 (2) : 183-192 . |
| MLA | Ji, Yan-Li et al. "Roll-to-roll fabrication of large-area metal-organic framework-based membranes for high-performance aqueous separations" . | NATURE WATER 2 . 2 (2024) : 183-192 . |
| APA | Ji, Yan-Li , Gu, Bing-Xin , Huo, Hui-Qian , Xie, Shi-Jie , Peng, Huawen , Zhang, Wen-Hai et al. Roll-to-roll fabrication of large-area metal-organic framework-based membranes for high-performance aqueous separations . | NATURE WATER , 2024 , 2 (2) , 183-192 . |
| Export to | NoteExpress RIS BibTex |
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.
Cite：
Copy from the list or Export to your reference management。
| 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) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Aromatic-aliphatic hydrocarbon separation is a challenging but important industrial process. Pervaporation membrane technology has the potential for separating these mixtures. We developed an oriented monolayer polyhedral (OMP) membrane that consists of a monolayer of ordered polyhedral particles and is anchored by hyperbranched polymers. It contains a high density of straight, selective nanochannels, enabling the preferential transport of aromatic molecules. Compared with traditional mixed-matrix membranes with random orientations, the OMP membrane improves the pervaporation separation index for aromatic-aliphatic hydrocarbon mixtures with C6 and C7 compounds, surpassing the performance of existing membranes by 3 to 10 times. This high performance demonstrates the potential of OMP membranes for hydrocarbon molecular separation and their application in the value-added separation of naphtha feedstocks.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Sun, Hao , Wang, Naixin , Xu, Yinghui et al. Aromatic-aliphatic hydrocarbon separation with oriented monolayer polyhedral membrane [J]. | SCIENCE , 2024 , 386 (6725) : 1037-1042 . |
| MLA | Sun, Hao et al. "Aromatic-aliphatic hydrocarbon separation with oriented monolayer polyhedral membrane" . | SCIENCE 386 . 6725 (2024) : 1037-1042 . |
| APA | Sun, Hao , Wang, Naixin , Xu, Yinghui , Wang, Fengkai , Lu, Jun , Wang, Huanting et al. Aromatic-aliphatic hydrocarbon separation with oriented monolayer polyhedral membrane . | SCIENCE , 2024 , 386 (6725) , 1037-1042 . |
| Export to | NoteExpress RIS BibTex |
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
