Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Yaqing Zhao,Kang Qin,Yaqing Zhou,Wei Liu,Zhixian Gao,Yuan Peng
Organophosphorus pesticides, commonly used in agricultural practices, remain as residues in food and the environment, presenting a significant risk to human health. The removal of these pesticides is essential to protect both human health and the environment. This study presents an in-situ synthesis technique that combines Cu-MOF (ZZU-282) with electrospinning technology to create a novel cross-linked MOF fiber membrane (cross-linked Cu-MOF-PAN FM, with PAN representing Polyacrylonitrile). The coexistence of micro/meso/macropores within the cross-linked Cu-MOF-PAN FM reduces mass transfer resistance and improves its pesticide removal capacity. The half-life for chlorpyrifos removal by the cross-linked Cu-MOF-PAN FM is about 18 s. The Langmuir model estimates the theoretical maximum removal capacity for chlorpyrifos at 208.3 mg g –1 . Additionally, the removal performance of organophosphorus pesticides is tested in simulated water samples, with results showing that over 70 % of six mixed organophosphorus pesticides are removed within 10 min using the proposed FM. The cross-linked Cu-MOF-PAN FM demonstrates superior efficiency in both rapid and sustained removal of organophosphorus pesticides from water, offering promising potential for environmental applications and pollutant removal. Moreover, the cross-linking process enhances the membrane’s resistance to organic solvents. This in-situ growth and cross-linking method offers a promising approach for fabricating MOF fiber membrane composites.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 3
·393
·
IF 4.7
Xiaoyu Du,Shijun Zhao,Yanqing Qu,Hongge Jia,Shuangping Xu,Mingyu Zhang,Guoliang Geng
Imidazole ionic liquids (ILs) have good affinity and good solubility for carbon dioxide (CO2). Such ionic liquids, combined with polyimide membrane materials, can solve the problem that, today, CO2is difficult to separate and recover. In this study, the ionic liquid (IL) of 1-ethyl-3-methylimidazolium tetrafluoroborate (IL1), 1-pentyl-3-methylimidazolium tetrafluoroborate (IL2), 1-octyl-3-methylimidazolium tetrafluoroborate (IL3), and 1-dodecylimidazolium tetrafluoroborate (IL4) with different contents were added to a polyimide matrix, and a series of polyimide membranes blended with ionic liquid were prepared using a high-speed mixer. The mechanical properties and gas separation permeability of the membranes were investigated. Among them, the selectivity of the PI/IL3membrane for CO2/CH4was 180.55, which was 2.5 times higher than the PI membrane, and its CO2permeability was 16.25 Barrer, which exceeded the Robeson curve in 2008; the separation performance of the membrane was the best in this work.
研究领域:
材料科学
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环境工程
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ruoyang Sun,Yumeng Xia,Mengyuan Peng,Yinghui Wang,Jinming Zhang,Qingtao Liu,Shouwei Zhang,Jinfeng Wang
Osmotic energy is a clean and renewable alternative resource to non-renewable fossil fuel. Harvesting this “blue” energy typically required ion-selective membranes. Two-dimensional (2D) materials are ideal scaffolds for constructing nanofluidic ion-selective membranes in osmotic energy conversion. However, the 2D membranes were often fragile and instable in solutions because of the weak van der Waals interactions between two-dimensional nanosheets. Here, stable MXene nanofluidic membranes were constructed by incorporating cellulose nanofiber (CNF) in MXene. The CNF was used as binder to enhance the mechanical stability in solutions. The resulted MXene/CNF membranes were investigated in terms of structure, ion selectivity and osmotic energy generation. The results showed that the MXene/CNF membranes exhibited excellent cation selectivity due to the negative charged carried by MXene and CNF, benefiting the osmotic energy conversion. The maximum power output density reached up to 1.32 and 0.338 W m −2 at 1000-fold KCl and 50-fold NaCl concentration gradient, respectively. Moreover, this MXene/CNF energy generator exhibited a long-term output stability. This work demonstrated the great potential of nanofluidic generators based on the two-dimensional material and the biomass material cellulose for osmotic energy conversion processes.
研究领域:
能源材料
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纳米技术
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环境科学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2015
·Vol. 3
·期 26
·5241-5248
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IF 4.726
Li Ma,Yuhong Yang,Jinrong Yao,Zhengzhong Shao,Yufang Huang,Xin Chen
Soy protein, one of the most abundant plant proteins, has gained considerable attention and popularity in recent years due to its biocompatibility, biodegradability, and renewability. However, the poor mechanical properties and high moisture sensitivity of soy protein-based materials have limited their wider application in practical use. In the present study we have overcome these shortcomings by the use of an aqueous reagent, tetrakis(hydroxylmethyl) phosphonium chloride (THPC), to modify the amino groups of the lysine (Lys) and arginine (Arg) residues present in soy protein. Solid state 13C cross polarization/magic-angle spinning nuclear magnetic resonance (CP/MAS NMR) and 31P NMR spectroscopy have confirmed the success of the chemical reaction by replacement of the hydroxymethyl arm of THPC, both qualitatively and quantitatively. Fourier-transform infrared (FTIR) spectroscopy, rheological observations, transmission electron microscopy (TEM) and atomic force microscopy (AFM) have been used to confirm the changes in the coherent tertiary structure of soy protein after modification, increasing the interconnection between the molecular chains. Finally, we have been able to produce a modified soy protein film, which provides a good combination of tensile strength and extensibility under either dry (10 ± 2 MPa and 25 ± 3%) or wet (5 ± 1 MPa and 200 ± 20%) conditions. In addition the modified soy protein film has unexpectedly been found to exhibit antimicrobial properties, and this adds to the merits of the final product. We believe that the method described further broadens the application of natural soy protein-based materials, for example in antimicrobial packaging films.
研究领域:
材料科学
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食品科学
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生物化学
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DOI
PubMed
高影响因子
Cell Reports Physical Science
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2021
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IF 0
Lin Qiao,Qing Dai,Huamin Zhang,Xianfeng Li
Summary Turing patterns and reaction-diffusion models are of great significance in biological and chemical fields. However, Turing-shape materials together with their application are rarely investigated, since at present Turing patterns are typically formed by the reaction of small molecules in a viscous system. Herein, a facile route to fabricate membrane materials with macro-scale Turing patterns is proposed. Macromolecules, rather than small molecules, are chosen as reactants to generate chemical Turing patterns, which makes it easy to freeze and construct Turing-shape materials. The formation mechanism and influence factors of Turing patterns are discussed in detail via experimental investigation and numerical simulation. Turing-shape membranes are successfully applied to electrochemical energy storage and exhibit good performance benefiting from the rich surface area.
研究领域:
材料科学
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化学
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生物学
✓ 已验证
DOI
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Haipeng Li,Chunyang Fan,Lei Han,Hao Li,Xiaocui Wei,Yanan Liu,Yuhan Yang,Zhongyi Jiang
Ionic two-dimensional polymer (2DP) nanosheets with unique merits are attractive candidates for next-generation proton exchange membranes (PEMs), but the fabrication of large-area 2DP nanosheet-based PEMs is still awaiting success. Here, we report a flexible and intrinsically proton-conductive polyelectrolyte (Poly(sodium 4-styrenesulfonate), PSS) assisted assembling method to fabricate large-area PEMs (∼400 cm 2 ) using sulfonated 2DP nanosheets as building blocks. Specifically, the optimized membrane achieves a superior proton conductivity of 802 mS cm −1 (70 °C, 95 % relative humidity), owing to the construction of low-energy barrier proton conduction pathways consisted of high density of sulfonic acid groups provided by PSS and sulfonated 2DP nanosheets. Moreover, PEMs with enhanced properties can also be accomplished by introducing different polyelectrolyte, indicating the good versatility of this powerful platform method. This work opens opportunities in large-scale fabrication of 2DP nanosheet membranes and paves a way for fabricating other 2D material-based membranes for diverse applications.
研究领域:
材料科学
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化学工程
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Rui Li,Xiaoquan Feng,Huixian Wang,Donglai Peng,Shaochong Cao,Jingtao Wang,Yatao Zhang,Yong Wang
Laminar assembles of graphene oxide (GO) are receiving tremendous attention for their interesting nanofluidic behaviors, but suffer from structural instability and frustrated mass transfer. Herein, we stabilize GO assembles by “complementary nanosheets”, and thus obtain highly robust and permeable membranes. Self-exfoliated nanosheets of ionic covalent organic frameworks (iCONs) are intercalated into GO nanosheets . GO and iCONs are physicochemically complementary as they carry opposite charges and hydrogen bonds acceptors and donors, respectively. Upon mixing, they form laminar assembles locked by electrostatic attraction and hydrogen bonds, suppressing swelling in water. Moreover, simulation and experimental results reveal that iCONs expands the interlayer distance and provides additional mass-transport paths. Consequently, the GO/iCONs membranes exhibit ultra-high water permeance up to 11-fold larger than that of pure GO membranes. This work provides a controllable route to stabilize GO assembles, and develops new membranes using complementary two-dimensional structures as building blocks.
研究领域:
材料科学
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纳米技术
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产品关联
DOI
高影响因子
Current Nanoscience
·
2023
·Vol. 21
·期 2
·319-332
·
IF 1.5
Yongshi Chen,Hao Wu,Geng Lu,Yi Zhu,Junfeng Ban,Xiaofang Li
BackgroundInfection is the main reason for the failure of the clinical application of guided tissue regeneration (GTR).ObjectiveThe aim of this study is to develop a membrane containing nanoparticles incorporated with the antimicrobial drug metronidazole (MTZ-NPs Membrane) to enhance drug permeation delivery into cells and promote periodontal tissue recovery and regeneration.MethodsWe prepared membranes containing nanoparticles incorporated with metronidazole (MTZ-NPs Membrane) and characterized the properties, such as mechanical properties, physicochemical properties, and release. Coumarin-6 was used to prepare a membrane containing nanoparticles incorporated with Coumarin-6 (C6-NPs Membrane) to evaluate the efficiency of the nanoparticles-loaded membranes on transmembrane entry into cells. Moreover, in vivo experiments were conducted to assess the effectiveness of the membrane.ResultsMTZ-NPs membrane had suitable mechanical strength; the drug was released by diffusion. Fourier Transform Infrared Spectroscopy (FTIR), differential scanning calorimetry (DSC), and X-ray diffraction (XRD) results showed the existence of metronidazole might be in the amorphous state in the membrane and had good compatibility with polymers. The in vitro cytotoxicity assays showed that the MTZ-NPs membrane was biocompatible. Cellular uptake of the C6-NPs membrane was significantly higher than that of the C6 membrane (p < 0.0001), signifying that encapsulating the drug in nanoparticles increases drug permeability and improves drug transport efficiency across the cellular membrane. The histological analysis showed that the MTZ-NPs membrane could promote periodontal tissue recovery.ConclusionMTZ-NPs membrane can improve drug penetration delivery into the cells and has a good prospect for the treatment of periodontal disease.
研究领域:
生物材料学
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口腔医学
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药剂学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Yisa Zhou,Ya Zhang,Jian Xue,Rui Wang,Zongjie Yin,Li Ding,Haihui Wang
Highly permeable and selective membranes are desirable for energy-efficient gas separation. Two-dimensional graphitic carbon nitride (g-C 3 N 4 ) has attracted significant attention owing to its suitable pore size, high pore density, and thus minimal mass-transfer barrier. Nevertheless, it is difficult to retain the structural integrity of its two-dimensional plane during the delamination of bulky g-C 3 N 4 into nanosheets, which has greatly hindered the preparation of high-quality g-C 3 N 4 gas separation membranes. In this study, flexible graphene oxide (GO) nanosheets containing abundant functional groups were used to cover and remedy some defects in g-C 3 N 4 nanosheets. Consequently, a continuous g-C 3 N 4 -GO membrane was obtained that exhibited excellent H 2 permeation performance (H 2 permeance: 2.16 × 10 −7 mol m −2 s −1 Pa −1 , H 2 /CO 2 selectivity: 39.2) and good stability, which is promising for practical hydrogen separation processes.
研究领域:
材料科学
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能源工程
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2022
·
IF 11.211
Yu Zheng,Jianliang Shen,Jinqiu Yuan,Niaz Ali Khan,Xinda You,Chao Yang,Shiyu Zhang,Ayman El-Gendi,Hong Wu,Runnan Zhang,Zhongyi Jiang
Covalent organic frameworks (COFs) are emergent ideal membrane materials, owing to their pre-designable and well-defined pore structures. However, COFs typically exist as solid powder and are hard to dissolve in most solvent, which renders COFs poor processability in membrane formation. In this study, TpPa-SO 3 H/PAN COF membranes (COFMs) were prepared via counter diffusion method, which is modulated by the pre-assembled two-dimensional (2D) crystalline TpPa-SO 3 H nanosheets as seeding layer. The TpPa-SO 3 H seeding layer regulated the diffusion-reaction behavior of monomers and induced the confined growth of TpPa-SO 3 H COFs, which is favorable for eliminating the intergranular defects inside the TpPa-SO 3 H/PAN COFMs. The thickness of TpPa-SO 3 H seeding layer can be controlled by the amount of TpPa-SO 3 H nanosheets. The charge of the channel wall inside the membrane can fortify the electrostatic repulsion mechanism and facilitate efficient desalination . Under the optimal conditions, the Na 2 SO 4 rejection rate of TpPa-SO 3 H/PAN COFMs can reach 97.4%. Unlike conventional polyamide membranes whose desalination performance usually decreases with the increase of salt concentration , the TpPa-SO 3 H/PAN COFMs preserved superior desalination performance toward high salt concentration up to 10,000 ppm.
研究领域:
材料科学
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环境工程
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产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2020
·Vol. 22
·期 8
·2426-2433
·
IF 9.48
Guanglei Zhao,Yuanyuan Chen,Xiao-Feng Li,Sihan Zhang,Yuanqiu Situ
Chitosan-based membrane materials are promising biomaterials with excellent biodegradability, biocompatibility, high hydrophilicity, and cost efficiency. However, their low proton conductivity greatly limits their use as proton exchange membranes, and the previously reported methods to improve their proton conductivity generally introduced non-biodegradable groups and compounds, which caused this natural polymer to lose its basic advantage of biodegradability. In this work, a facile and efficient strategy has been developed for fabricating new chitosan-based whole-biopolymers to satisfy both sustainability and high-performance simultaneously. The modified chitosan with introduced purine groups has significantly improved proton conductivity up to 50 fold higher than that of chitosan itself, due to the unique structures of the grafted purine groups that produced a large number of proton-hopping sites, and the adenine monophosphate-grafted membrane materials exhibited higher proton conductivity (0.1867 S cm−1) at 100 °C than Nafion, indicating their capability for use in high-temperature fuel cells. Meanwhile their methanol permeability was much lower than that of Nafion (7.888 × 10−7 cm2 s−1vs. 1.550 × 10−6 cm2 s−1). Blending of NCC with modified chitosan further improves its mechanical properties and dimensional stability. This study paves a new way to prepare environmentally friendly membrane materials in the place of commonly used non-degradable membranes, highlighting the prospects of natural polymer-based membrane materials in the sustainable fields of fuel cells, supercapacitors and solid-state batteries.
研究领域:
材料科学
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生物化学
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可持续能源
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Yunqi Zhou,Ye Yuan,Xinlei Liu,Zhi Wang
Metal-organic framework (MOF) membranes with proper pore size distribution and functional groups are generally more suitable for separation. Most MOFs are characterized by a hierarchical pore structure, which possesses large cavities surrounded by small windows. Fabrication of MOF membranes only retaining microporous fragment structure is a workable method to narrow pore size distribution. In this study, well-grown NH 2 -MIL-101(Cr) fragment membranes were fabricated for CO 2 separation by adjusting acetic acid – ligand – metal ratio to balance the nucleation and growth. NH 2 -MIL-101(Cr) fragment has a similar chemical structure to NH 2 -MIL-101(Cr) as expected, but only small pores with size around 0.56 nm is retained. The NH 2 -MIL-101(Cr) fragment membranes exhibited CO 2 /N 2 selectivity of about 37 with CO 2 permeance up to 6104 GPU.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）