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学者姓名：安全福
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Abstract ：
The increase demand on clean water accompanied with water shortage is now threatening the ecosystem and human life, which is aggravated with the rising of heavy-metal-ion polluted water. Thus, water purification from metal-ion contained wastewater is of significance. The metal ions removal could achieve two aims simultaneously: harvesting clean water and recovering the valuable metal resource. Nanofiltration (NF) membranes, featured with the nanopore size and energy-efficiency, demonstrate great promise for separation of metal ions from wastewater, which has not been fully exploited with the rapid growth of advanced materials. Thus, a summarization on the recent progress in this field is essential. In this review, we will start with the introduction of separation mechanism. Then, the possible materials used for NF membrane construction will be given. Subsequently, the commonly used NF fabrication techniques will be detailed with some examples. Next, the NF applications in treatment of various heavy metal ions polluted water will be thoroughly discussed. Finally, the perspectives future directions will be provided. This review is expected to shine a light on the fabrication of NF membranes for high-performance removal of heavy metal ions from the wastewater, realizing the water purification and metal recovery.
Keyword ：
Heavy metal ion removal Heavy metal ion removal Membrane materials Membrane materials Nanofiltration membrane Nanofiltration membrane Fabrication techniques Fabrication techniques
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| GB/T 7714 | Wanjiya, Mwema , Zhang, Jia-Chen , Wu, Bin et al. Nanofiltration membranes for sustainable removal of heavy metal ions from polluted water: A review and future perspective [J]. | DESALINATION , 2024 , 578 . |
| MLA | Wanjiya, Mwema et al. "Nanofiltration membranes for sustainable removal of heavy metal ions from polluted water: A review and future perspective" . | DESALINATION 578 (2024) . |
| APA | Wanjiya, Mwema , Zhang, Jia-Chen , Wu, Bin , Yin, Ming-Jie , An, Quan-Fu . Nanofiltration membranes for sustainable removal of heavy metal ions from polluted water: A review and future perspective . | DESALINATION , 2024 , 578 . |
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Abstract ：
Incorporating zwitterionic materials into polymer matrix is an effective method to fabricate high-performance ultrafiltration membranes, which can improve the surface hydrophilicity while optimizing the internal structure of the membrane. In this study, a series of zwitterionic copolymers, 4VP-MPC, were synthesized using 4vinylpyridine (4VP) and 2-methylacryloxyethyl phosphocholine (MPC), and their impact on the phase inversion process of polysulfate (PSE) was investigated thoroughly by changing the addition amount and altering the copolymer composition. The addition of 4VP-MPC accelerated the phase inversion rate, reduced the skin layer thickness and improved the membrane porosity. Moreover, the hydrophilicity of the membrane surface is enhanced due to the segregation of the zwitterionic copolymer during the membrane formation process. A novel PSE/4VP-MPC membrane with good separation performance and antifouling property was fabricated, with a pure water flux of 221 L/(m2 h bar), a BSA rejection rate of 93.3 %, and a flux recovery rate of 94.6 %. Additionally, when filtering the mixed simulated dialysate, the optimized membrane showed clearance rates of 71.3 % and 97.0 % for lysozyme and urea respectively, while maintaining a high BSA rejection. This PSE/4VP-MPC blend membrane demonstrated potential applications in the field of ultrafiltration, including hemodialysis.
Keyword ：
NIPS NIPS Surface segregation Surface segregation Zwitterionic copolymer Zwitterionic copolymer Ultrafiltration Ultrafiltration Polysulfate Polysulfate
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| GB/T 7714 | Yang, Ziyun , Liu, Qiaohong , Zhang, Qianru et al. The construction of polysulfate membrane with improved ultrafiltration performance via zwitterionic copolymer segregation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 341 . |
| MLA | Yang, Ziyun et al. "The construction of polysulfate membrane with improved ultrafiltration performance via zwitterionic copolymer segregation" . | SEPARATION AND PURIFICATION TECHNOLOGY 341 (2024) . |
| APA | Yang, Ziyun , Liu, Qiaohong , Zhang, Qianru , Shen, Yue , Shi, Yijie , Sun, Yushan et al. The construction of polysulfate membrane with improved ultrafiltration performance via zwitterionic copolymer segregation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 341 . |
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Abstract ：
Mixed matrix membranes are attracting increasing attention due to their potential to provide selective channels in the polymer matrix. However, the compatibility and dispersion of nanoparticles in organic polymers are still challenging in membrane preparation procedure. Covalent organic frameworks (COFs) are excellent nano-fillers due to their good compatibility with organic polymers. In this work, LZU8 particles were incorporated into polydimethylsiloxane (PDMS) membranes. SEM observations showed that the LZU8 particles were well dispersed in the PDMS matrix. Additionally, the viscosity changes of membrane solution and the LF-NMR result of the crosslinked membranes showed that the incorporation of LZU8 could accelerate the crosslinking of the PDMS solution. The LZU8-PDMS membrane was applied for the pervaporation of 5 wt% ethanol/water solution, which exhibited a high flux of 5 kg m2 & sdot;h-1 and a separation factor of 11. Considering the compatibility of inorganic particles with polymer and the controlling of crosslinking could be critical factors in mixed matrix membranes fabrication procedure, this LZU8 can be a promising nano-filler for improving the performance of membranes.
Keyword ：
LZU8-PDMS LZU8-PDMS Crosslinking Crosslinking Mixed matrix membrane Mixed matrix membrane Ethanol recovery Ethanol recovery
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| GB/T 7714 | Song, Danyang , Li, Chong , Li, Jie et al. Incorporating COFs into PDMS matrix for accelerated crosslinking and efficient ethanol recovery [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 696 . |
| MLA | Song, Danyang et al. "Incorporating COFs into PDMS matrix for accelerated crosslinking and efficient ethanol recovery" . | JOURNAL OF MEMBRANE SCIENCE 696 (2024) . |
| APA | Song, Danyang , Li, Chong , Li, Jie , Cao, Tengxuan , Cai, Peng , Wang, Naixin et al. Incorporating COFs into PDMS matrix for accelerated crosslinking and efficient ethanol recovery . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 696 . |
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Abstract ：
Alcohol-permselective pervaporation is a breakthrough technology in industrial separation applications. A highflux pervaporation membrane is demanded in cost saving. In this study, an ultrathin metal-organic framework (MOF) membrane was formed on a porous polymer substrate using a hydroxyl salt induced in situ growth method. Then, the obtained MOF membrane was modified through a sulfidation strategy to enhance the transport of alcohol molecules. The aperture of the MOFs was enlarged to form a hollow structure. Subsequently, polydimethylsiloxane was spin-coated on the MOF membrane to eliminate the grain boundary defects and improve the hydrophobicity, without increasing the thickness of the MOF layer. Based on the ultra-fast transport channels, the modified MOF membrane exhibited an ultrahigh flux of 11.6 kg m(- 2) h(-1) with comparable separation factors for 5 wt% ethanol aqueous solution at 60 degree celsius. The diffusion mechanism of alcohol molecules was confirmed by the molecular dynamic simulation.
Keyword ：
Post-synthetic modification Post-synthetic modification Alcohol-permselective Alcohol-permselective Pervaporation Pervaporation Ultra-fast transport channel Ultra-fast transport channel MOF membrane MOF membrane
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| GB/T 7714 | Wang, Fengkai , Sun, Hao , Shen, Mengxin et al. Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 698 . |
| MLA | Wang, Fengkai et al. "Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation" . | JOURNAL OF MEMBRANE SCIENCE 698 (2024) . |
| APA | Wang, Fengkai , Sun, Hao , Shen, Mengxin , Li, Jie , Wang, Naixin , Meng, Hong et al. Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 698 . |
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Abstract ：
Recycling of valuable solutes and recovery of organic solvents via organic solvent nanofiltration (OSN) are important for sustainable development. However, the trade-off between solvent permeability and solute rejection hampers the application of OSN membranes. To address this issue, the poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) nanoparticle membrane with hierarchical pores is constructed for OSN via vacuum filtration. The small pores (the free volume of the polymer chain) charge for the solute rejection (high rejection efficiency for low molecule weight solute) and allow solvent passing while the large pores (the void between two PEDOT:PSS nanoparticles) promote the solvent transport. Owing to the lack of connectivity among the large pores, the fabricated PEDOT:PSS nanoparticle membrane enhanced solvent permeance while maintaining a high solute rejection efficiency. The optimized PEDOT:PSS membrane affords a MeOH permeance of 7.2 L m(-2) h(-1) bar(-1) with over 90% rejection of organic dyes, food additives, and photocatalysts. Moreover, the rigidity of PEDOT endows the membrane with distinctive stability under high-pressure conditions. The membrane is used to recycle the valuable catalysts in a methanol solution for 150 h, maintaining good separation performance. Considering its high separation performance and stability, the proposed PEDOT:PSS membrane has great potential for industrial applications.
Keyword ：
organic solvent nanofiltration organic solvent nanofiltration free volume free volume PEDOT:PSS nanoparticle membrane PEDOT:PSS nanoparticle membrane acid treatment acid treatment interparticle distance interparticle distance
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| GB/T 7714 | Zhang, Jia-Chen , Lv, Tian-Run , Yin, Ming-Jie et al. PEDOT:PSS Nanoparticle Membranes for Organic Solvent Nanofiltration [J]. | SMALL , 2024 . |
| MLA | Zhang, Jia-Chen et al. "PEDOT:PSS Nanoparticle Membranes for Organic Solvent Nanofiltration" . | SMALL (2024) . |
| APA | Zhang, Jia-Chen , Lv, Tian-Run , Yin, Ming-Jie , Ji, Yan-Li , Jin, Cheng-Gang , Chen, Bo-Hao et al. PEDOT:PSS Nanoparticle Membranes for Organic Solvent Nanofiltration . | SMALL , 2024 . |
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Abstract ：
Stretchable strain sensors have the potential to significantly advance electronic healthcare (E-healthcare). However, current challenges, including a limited detection range, low sensitivity, aggregation of conductive nanoparticles, and the inherent rigidity of conductive polymers within hydrogel matrices, hinder their progress. In our study, we employed a dual approach: we tailored both physical and chemical bond densities and coupled them with conductive polymer nanoparticles. As a result, we developed a stretchable hydrogel strain sensor embedded with a quick response code. This innovation achieved an impressive detection range of up to 1500% and a high gauge factor of 16.6. By modifying the hydrogen bond strength and converting conductive polymer nanoparticles into linear polymer chains, we managed to enhance the sensor's stretchability to 2100%. Moreover, the incorporation of a quick response code enabled the sensor to simultaneously monitor in real-time and encode information. Thus, our sensor emerges as a robust contender for pioneering advancements in E-healthcare, potentially supporting intricate applications like rehabilitation progression tracking.
Keyword ：
Hydrogel strain sensor Hydrogel strain sensor Facial palsy Facial palsy 3D printing 3D printing Integrated wearable device Integrated wearable device Hydrogen bond Hydrogen bond
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| GB/T 7714 | Li, Zi-Rong , Lv, Tian-Run , Yang, Zhenxu et al. 3D microprinting of QR-code integrated hydrogel tactile sensor for real-time E-healthcare [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 484 . |
| MLA | Li, Zi-Rong et al. "3D microprinting of QR-code integrated hydrogel tactile sensor for real-time E-healthcare" . | CHEMICAL ENGINEERING JOURNAL 484 (2024) . |
| APA | Li, Zi-Rong , Lv, Tian-Run , Yang, Zhenxu , Zhang, Wen-Hai , Yin, Ming-Jie , Yong, Ken-Tye et al. 3D microprinting of QR-code integrated hydrogel tactile sensor for real-time E-healthcare . | CHEMICAL ENGINEERING JOURNAL , 2024 , 484 . |
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Abstract ：
Conductive polymers are recognized as ideal candidates for the development of noninvasive and wearable sensors for real-time monitoring of potassium ions (K+) in sweat to ensure the health of life. However, the low ion-to-electron transduction efficiency and limited active surface area hamper the development of high-performance sensors for low-concentration K+ detection in the sweat. Herein, a wearable K+ sensor is developed by tailoring the nanostructure of polypyrrole (PPy), serving as an ion-to-electron transduction layer, for accurately and stably tracing the K+ fluctuation in human sweat. The PPy nanostructures can be tailored from nanospheres to nanofibers by controlling the supramolecular assembly process during PPy polymerization. Resultantly, the ion-to-electron transduction efficiency (17-fold increase in conductivity) and active surface area (1.3-fold enhancement) are significantly enhanced, accompanied by minimized water layer formation. The optimal PPy nanofibers-based K+ sensor achieved a high sensitivity of 62 mV decade(-1), good selectivity, and solid stability. After being integrated with a temperature sensor, the manufactured wearable sensor realized accurate monitoring of K+ fluctuation in the human sweat.
Keyword ：
ion-selective electrodes ion-selective electrodes polypyrrole nanofibers polypyrrole nanofibers wearable potentiometric ion sensors wearable potentiometric ion sensors sweat sweat
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| GB/T 7714 | Yang, Yaqiong , Lv, Tian-Run , Zhang, Wen-Hai et al. Tailored Polypyrrole Nanofibers as Ion-to-Electron Transduction Membranes for Wearable K+ Sensors [J]. | SMALL , 2024 , 20 (26) . |
| MLA | Yang, Yaqiong et al. "Tailored Polypyrrole Nanofibers as Ion-to-Electron Transduction Membranes for Wearable K+ Sensors" . | SMALL 20 . 26 (2024) . |
| APA | Yang, Yaqiong , Lv, Tian-Run , Zhang, Wen-Hai , Zhang, Jia-Yue , Yin, Ming-Jie , An, Quan-Fu . Tailored Polypyrrole Nanofibers as Ion-to-Electron Transduction Membranes for Wearable K+ Sensors . | SMALL , 2024 , 20 (26) . |
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Abstract ：
Graphene oxide (GO) membrane has been considered as a promising approach for harvesting pure water from various wastewater to deal with the current water shortage issue, arising from its distinctive 2D channel features. However, the narrow interlayer distance (0.75 angstrom) of GO nanosheets hampers the utilization of GO membranes for dye wastewater treatment, which demands superior water permeance, high dyes rejection, and low salts rejection. Herein, an in-situ anchored nanoparticle strategy is designed to fabricate Fe(OH)(3)@GO membrane to enlarge the interlayer distance via the uniform distributed Fe(OH)(3) nanoparticles. Benefiting from the in-situ transformation of Fe3+ into positively charged Fe(OH)(3) nanoparticles, the interlayer distance of GO membranes can be tailored via changing the Fe: GO mass ratio and hydrolysis time. The optimized Fe(OH)(3)@GO membrane realizes a superior water permeance of similar to 90.9 LMH/bar (similar to 19-fold enhancement compared with GO membranes), with >99% and <4% rejection to Evans blue (EB) and NaCl, respectively. Thus, the membrane can be applied for dye desalination and can be stably running for 85 h. Considering the facile and efficient 2D channel tunability, our strategy provides an innovative approach for construction of high-performance 2D membranes.
Keyword ：
Dye desalination Dye desalination Interlayer distance Interlayer distance Fe(OH)(3) nanoparticles Fe(OH)(3) nanoparticles Nanofiltration Nanofiltration Graphene oxide Graphene oxide
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| GB/T 7714 | Ren, Yun-Han , Zhang, Wen-Hai , Yin, Ming-Jie et al. In-situ nanoparticles intercalating graphene oxide membranes for superior water transport in dye desalination [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 697 . |
| MLA | Ren, Yun-Han et al. "In-situ nanoparticles intercalating graphene oxide membranes for superior water transport in dye desalination" . | JOURNAL OF MEMBRANE SCIENCE 697 (2024) . |
| APA | Ren, Yun-Han , Zhang, Wen-Hai , Yin, Ming-Jie , Liu, Zhi-Jie , An, Quan-Fu . In-situ nanoparticles intercalating graphene oxide membranes for superior water transport in dye desalination . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 697 . |
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Abstract ：
Graphene oxide (GO) is regarded as a promising next-generation high-performance separation membrane material. However, the flexiblility of single-layer GO nanosheets usually results in membrane with poor stability under practical conditions. In this study, we present a facile strategy to rapidly convert single-layer nanosheet GO membranes into supra-nanosheet GO (sGO) membranes with a loose rigid structure by a confined gelling and crosslinking process. The optimized sGO membrane exhibits remarkable water permeance and retention capability. With additional tailor-made nanopores, the water permeance of the sGO membrane could reach 52.0 LMH/bar, representing 10-fold increase compared to pristine GO membrane. Furtheermore, this membrane demonstrates excellent pressure stability and unique elasticity, enhancing its lorg-term operational reliability and reversible recovery. Hence, this innovative strategy provides a platform for the facily construction of highly stable 2D membranes with enhanced water transport channels.
Keyword ：
Loose nanofiltration Loose nanofiltration Supra-GO (sGO) Supra-GO (sGO) GO membrane GO membrane Antibiotic desalination Antibiotic desalination Crosslinking Crosslinking
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| GB/T 7714 | Zhang, Wen-Hai , Ren, Yun-Han , Yin, Ming-Jie et al. Stable supra-nanosheet graphene oxide membranes for ultrafast water transport [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 711 . |
| MLA | Zhang, Wen-Hai et al. "Stable supra-nanosheet graphene oxide membranes for ultrafast water transport" . | JOURNAL OF MEMBRANE SCIENCE 711 (2024) . |
| APA | Zhang, Wen-Hai , Ren, Yun-Han , Yin, Ming-Jie , Liu, Zhi-Jie , Gao, Haiqi , Wang, Shuang-Shuang et al. Stable supra-nanosheet graphene oxide membranes for ultrafast water transport . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 711 . |
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Abstract ：
Mixed matrix membranes exhibit enhanced selectivity and permeability, but stability still needs to be improved. In this study, we prepared ZIF-8/PEBA mixed matrix membranes with different loadings and used interface induction to control the directional distribution of nanoparticles. The controlled directional distribution of ZIF-8 in PEBA was studied by optical microscopy and scanning electron microscopy. The effects of different ZIF-8 loading amounts on the formation and pervaporation performance of mixed matrix membranes were thoroughly studied. The prepared membrane was applied to 1 wt% n-butanol aqueous solution, achieving a high flux of 4.9 kg m- 2 h-1 and a separation factor of 18.8. The directional distribution of nanoparticles in PEBA prevents direct contact with the feed liquid and effectively protects the structural stability of ZIF-8. The resulting ZIF-8/ PEBA membrane showed excellent stability after more than 100 h of operation.
Keyword ：
Liquid-liquid interface Liquid-liquid interface PEBA PEBA ZIF-8 ZIF-8 Mixed matrix membrane Mixed matrix membrane N-Butanol N-Butanol
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| GB/T 7714 | Cai, Peng , Li, Jie , Song, Danyang et al. Enhancing permeability and stability of ZIF-8/PEBA pervaporation membrane through interface-induced directional nanoparticle distribution [J]. | JOURNAL OF MEMBRANE SCIENCE , 2024 , 695 . |
| MLA | Cai, Peng et al. "Enhancing permeability and stability of ZIF-8/PEBA pervaporation membrane through interface-induced directional nanoparticle distribution" . | JOURNAL OF MEMBRANE SCIENCE 695 (2024) . |
| APA | Cai, Peng , Li, Jie , Song, Danyang , Zhang, Nai , An, Quan-Fu . Enhancing permeability and stability of ZIF-8/PEBA pervaporation membrane through interface-induced directional nanoparticle distribution . | JOURNAL OF MEMBRANE SCIENCE , 2024 , 695 . |
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