JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Kaixuan Li,Gansheng Liu,Jiahui Du,Zhiyou Pu,Zhihao Gao,Xiaohua Ma,Zhenyu Cui,Jianxin Li
The treatment of silk and wool printing industry acidic wastewater by thin-film polyamide nanofiltration (NF) membrane faces significant challenges due to the stability of acid-resistance. In this study, zwitterionic cyanuric chloride (ZCC) synthesized by cyanuric chloride (CC) as a raw material was employed to fabricate a zwitterionic loose NF membrane (ZLNF-PEI-ZCC) by thermal crosslinking with polyethyleneimine (PEI) on a polyethersulfone (PES) membrane as a supporting layer. In contrast to the M ZCC membrane, the M CC membrane was fabricated using PEI and CC. The results showed that ZCC was successfully introduced onto the surface of the PES membrane. As the ZCC content increased, the thickness of the functional layer increased from 169 nm (0.1 wt% ZCC) to 237 nm (0.6 wt% ZCC), whereas the surface average pore size decreased from 1.74 nm to 1.16 nm. Meanwhile, the molecular weight cut-off (MWCO) of ZLNF decreased from 1619 Da to 763 Da and the maximum water contact angle decreased from 65.81° to 48.60°. Specifically, after being exposed to a H 2 SO 4 solution (pH = 1) for 720 h, the M ZCC-0.4 membrane (fabricated with 2 wt% PEI and 0.4 wt% ZCC) maintained stable separation performance with a high rejection of AB-234 94.31% and a low rejection of Na 2 SO 4 15.80% and the permeance of 17.92 L m -2 h -1 bar -1 . The density functional theory (DFT) calculations showed that the PEI-CC exhibits a significantly stronger binding energy with H + (ΔE = -97.19 kcal mol -1 ) than the zwitterionic modified PEI-ZCC (ΔE = -56.51 kcal mol -1 ). This confirms that the zwitterionic modification substantially attenuates the membrane’s affinity for protons. In summary, this work presents a promising strategy for developing highly acid-resistant NF membranes for efficient dye/salt separation in strongly acidic wastewater.
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高影响因子
Journal of Environmental Chemical Engineering
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2022
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IF 7.968
Shuang Zheng,Shujuan Yang,Zhaofeng Ouyang,Tianya Chen,Yong Kuang,Haixing Shen,Fei Yang,Yong Zhang
To obtain ultrafiltration (UF) membranes with excellent separation performances and antifouling properties, regenerated cellulose (RC) membranes with intrinsic hydrophilicity and dense structures immensely attract the attention of researchers. Herein, a novel modified RC membrane, which has high water permeability and antifouling capability, is prepared using cellulose acetate (CA) via non-solvent induced phase separation (NIPS) and green hydrolysis technology . The as-prepared membranes were investigated comprehensively by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) analyses and protein adsorption, etc. As a result, the RC membranes showed higher hydrophilicity (WCA=25.95°), thus they possessed a lower protein adsorption value of 1.9 ± 0.1 μg/cm 2 . The filtration performances were evaluated by bovine serum albumin (BSA) and endotoxin separation with dead-end filtration system. The results exhibited greater selectivity of RC membranes that BSA rejection over 98% and endotoxin remove below 0.25 EU/mL, and excellent anti-fouling properties that the flux recovery rate (FRR) over 95% and even as high as 100%. Simultaneously, the common polyethersulfone (PES) composite membranes were prepared via NIPS technology, and comprehensively compared with RC membranes to provide a theoretical basis for the practical application of RC membranes in pharmaceutical and biotechnological industries.
研究领域:
膜科学
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材料科学
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生物技术
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制药工程
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高影响因子
ACS Biomaterials Science & Engineering
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2023
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IF 5.8
Yi Wang,Kai Wang,Ying Luo,Haifeng Chen
Biomaterials for cell replacement therapy could facilitate the delivery, function, and retrieval of transplanted therapeutic cells. However, the limited capacity to accommodate a sufficient quantity of cells in biomedical devices has hindered the success of clinical application, resulting from the suboptimal spatial organization of cells and insufficient permeation of nutrients in the materials. Herein, through the immersion-precipitation phase transfer (IPPT) process from polyether sulfone (PES), we develop planar asymmetric membranes with a hierarchical pore architecture spanning from nanopores (∼20 nm) in the dense skin and open-ended microchannel arrays with gradient pore size increasing vertically from microns to ∼100 μm. The nanoporous skin would be an ultrathin diffusion barrier, while the microchannels could support high-density cell loading by acting as separate chambers allowing uniform distribution of cells in the scaffold. Alginate hydrogel could permeate into the channels and form a sealing layer after gelation, which could slow down the invasion of host immune cells into the scaffold. The hybrid thin-sheet encapsulation system (∼400 μm thick) could protect allogeneic cells over half-year after intraperitoneal (IP) implantation in immune-competent mice. Such structural membranes and plastic–hydrogel hybrids of thin dimensions could find important applications in cell delivery therapy.
研究领域:
生物材料
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组织工程
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细胞治疗
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生物医学设备
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免疫学
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PubMed
高影响因子
Energies
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2024
·Vol. 17
·期 3
·646
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IF 3
Osama A. Marzouk
Recently, worldwide, the attention being paid to hydrogen and its derivatives as alternative carbon-free (or low-carbon) options for the electricity sector, the transport sector, and the industry sector has increased. Several projects in the field of low-emission hydrogen production (particularly electrolysis-based green hydrogen) have either been constructed or analyzed for their feasibility. Despite the great ambitions announced by some nations with respect to becoming hubs for hydrogen production and export, some quantification of the levels at which hydrogen and its derived products are expected to penetrate the global energy system and its various demand sectors would be useful in order to judge the practicality and likelihood of these ambitions and future targets. The current study aims to summarize some of the expectations of the level at which hydrogen and its derivatives could spread into the global economy, under two possible future scenarios. The first future scenario corresponds to a business-as-usual (BAU) pathway, where the world proceeds with the same existing policies and targets related to emissions and low-carbon energy transition. This forms a lower bound for the level of the role of hydrogen and its penetration into the global energy system. The second future scenario corresponds to an emission-conscious pathway, where governments cooperate to implement the changes necessary to decarbonize the economy by 2050 in order to achieve net-zero emissions of carbon dioxide (carbon neutrality), and thus limit the rise in the global mean surface temperature to 1.5 °C by 2100 (compared to pre-industrial periods). This forms an upper bound for the level of the role of hydrogen and its penetration into the global energy system. The study utilizes the latest release of the annual comprehensive report WEO (World Energy Outlook—edition year 2023, the 26th edition) of the IEA (International Energy Agency), as well as the latest release of the annual comprehensive report WETO (World Energy Transitions Outlook—edition year 2023, the third edition) of the IRENA (International Renewable Energy Agency). For the IEA-WEO report, the business-as-usual situation is STEPS (Stated “Energy” Policies Scenario), and the emissions-conscious situation is NZE (Net-Zero Emissions by 2050). For the IRENA-WETO report, the business-as-usual situation is the PES (Planned Energy Scenario), and the emissions-conscious situation is the 1.5°C scenario. Through the results presented here, it becomes possible to infer a realistic range for the production and utilization of hydrogen and its derivatives in 2030 and 2050. In addition, the study enables the divergence between the models used in WEO and WETO to be estimated, by identifying the different predictions for similar variables under similar conditions. The study covers miscellaneous variables related to energy and emissions other than hydrogen, which are helpful in establishing a good view of how the world may look in 2030 and 2050. Some barriers (such as the uncompetitive levelized cost of electrolysis-based green hydrogen) and drivers (such as the German H2Global initiative) for the hydrogen economy are also discussed. The study finds that the large-scale utilization of hydrogen or its derivatives as a source of energy is highly uncertain, and it may be reached slowly, given more than two decades to mature. Despite this, electrolysis-based green hydrogen is expected to dominate the global hydrogen economy, with the annual global production of electrolysis-based green hydrogen expected to increase from 0 million tonnes in 2021 to between 22 million tonnes and 327 million tonnes (with electrolyzer capacity exceeding 5 terawatts) in 2050, depending on the commitment of policymakers toward decarbonization and energy transitions.
研究领域:
能源研究
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环境科学
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政策分析
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高影响因子
Journal of Energy Chemistry
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2025
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IF 14.9
Sinan Zheng,Yang Wang,Bin Luo,Leilei Sun,Guosheng Duan,Zhean Bao,Li Gong,Jingyun Huang,Zhizhen Ye
Benefiting from features such as high-voltage platforms, superior energy density, and cost-effectiveness, Zinc-bromine flow batteries (ZBFBs) demonstrate significant potential for large-scale energy storage applications. However, their practical implementation faces critical challenges: sluggish Br 2 /Br − redox reactions and severe shuttle effects, which lead to diminished energy efficiency and self-discharge. Here, we develop an innovative electrochemical self-induced catalyst gel encapsulation strategy. Under electrochemical driving, the poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS, abbreviated as PES) catalyst spontaneously undergoes gelation and coating on carbon fibers, thereby forming a PES@C composite cathode with enhanced bromine conversion reversibility. This innovative strategy effectively addresses three critical challenges in existing ZBFBs: shuttle effect, low bromine utilization, and poor energy efficiency. PES@C with sulfur sites and C–O-C group enable efficient bromine/poly-bromide anchoring through strong polar interactions, effectively suppressing shuttling effects. Furthermore, the abundant active sites exhibit exceptional catalytic activity towards Br 2 /Br − redox reactions. This synergistic adsorption-catalysis mechanism significantly enhances the electrochemical performance of ZBFBs. The ZBFBs with PES@C achieve stable operation under ultrahigh current density (200 mA cm −2 ) and high areal capacity (40 mA h cm −2 ), delivering outstanding voltage efficiency (84.91%) and energy efficiency (81.78%). Notably, the proposed strategy demonstrates universal applicability for performance enhancement in various bromine-based battery systems, providing an efficient pathway to improve energy efficiency and cycling durability in bromine-based flow batteries.
研究领域:
储能技术
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电化学
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材料科学
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催化
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可再生能源
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电池技术
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化学工程
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高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2023
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IF 5.8
Xiao Fu,Ting Lei,Cong Chen,Gan Fu
The recent “cell-based theory” of coagulation suggests that platelets serve as the site of coagulation factor reactions, making platelets an effective target for inhibiting membrane thrombosis. Unfortunately, there is limited research on how blood purification membranes affect platelet intracellular signaling . In this study, we modified polyethersulfone (PES) membranes with the platelet phosphodiesterase (PDE) inhibitor dipyridamole (DIP) and investigated the effects of the DIP/PES (DP) membranes on platelet adhesion, activation, aggregation, and secretion, as well as the role of the PDE-cyclic adenosine monophosphate (cAMP) intracellular signaling pathway. Additionally, we evaluated the hemocompatibility and preliminary in vivo safety of DP membranes. Our results demonstrate that the modified DP membranes effectively inhibited platelet adhesion, membrane CD62P expression, and plasma soluble P-selectin activation levels. Furthermore, we confirmed that DP membranes achieved platelet aggregation inhibition and reduced platelet factor 4 and β-thromoglobulin secretion levels by inhibiting platelet intracellular PDE-cAMP signaling. Moreover, the modified DP membranes exhibited good anticoagulant and red blood cell membrane stability and complement resistance and demonstrated preliminary biocompatibility in mouse experiments. Collectively, these findings highlight the potential application of DP dialysis membranes in blood purification for critically ill patients.
研究领域:
血液学
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生物医学工程
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药理学
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生物材料
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PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Hongxu Chen,Fangbo Zhao,Xiaohui Zhang,Hee-Deung Park,Zhiguo Li,Liu Yang
ABSTRACT Bio-fouling is a key issue for the nanofiltration operation. In this study, 1, 2-bis ( N -aminoethyl imidazoline) ethane (BAIE) firstly was used as a novel bisimidazoline aqueous monomer to prepare the anti-bacterial nanofiltration (NF) membranes. A novel nanofiltration (BAIE-TMC NF) membrane with in-situ anti-bacterial structure and anti-fouling property was fabricated via interfacial polymerization (IP) with trimesoyl chloride (TMC), basing on a polyethersulfone (PES) substrate. Protonated imidazole endowed the surface of BAIE-TMC NF membrane with weak electronegativity, and its salt rejection sequence was MgSO 4 > Na 2 SO 4 > MgCl 2 > NaCl > LiCl. Meantime, the BAIE-TMC NF membrane with 0.5 wt% BAIE (M-0.5) exhibited a high rejection for bivalent ions, with a high MgSO 4 rejection (94.7%). Notably, BAIE-TMC NF membrane containing an in-situ anti-bacterial imidazole structure showed significant anti-fouling and anti-bacterial properties. After BSA or HA filtration process, the flux recovery rates of all BAIE-TMC NF membranes were higher than 95%, and M-0.5 exhibited high inhibition performance against Escherichia coli (98.5%) and Staphylococcus aureus (98.4%). Furthermore, M-0.5 exhibited excellent long-term separation stability during the three weeks separation experiment. BAIE can serve as an effective aqueous monomer for fabricating in-situ anti-bacterial and anti-fouling NF membrane to achieve the rejection of organic pollutant and bivalent ions.
研究领域:
环境工程
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材料科学
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化学工程
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水处理
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高影响因子
POLYMER
·
2011
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IF 3.829
Zhuan Yi,Liping Zhu,Liang Cheng,Baoku Zhu,Youyi Xu
An amino-substituted polyethersulfone (PES) was synthesized by the polycondensation of a functional monomer bis(3-amino-4-hydroxyphenyl) sulfone with bis(4-fluorophenyl) sulfone. The amine groups incorporated into PES were employed as anchors to immobilize the chain transfer agents of reversible addition-fragmentation polymerization (RAFT). The resultant macro chain transfer agent was used to initiate the polymerization of the hydrophilic monomers N -isopropyl acrylamino (NIPAAm) and N, N -dimethylamino-2-ethyl methacrylate (DMAEMA), respectively. The gel permeation chromatography (GPC) results confirmed the successful synthesis of the amphiphilic copolymers PES- g -PNIPAAm and PES- g -PDMAEMA, and these two copolymers were perhaps the few examples of amphiphilic copolymer synthesized via a radical polymerization from PES main chains. The amino-substituted PES seemed a versatile precursor that showed a potential of functionalization via various strategies including click chemistry, atom transfer radical polymerization and RAFT polymerization. The synthesized amphiphilic copolymers were finally used as additives to improve the hydrophilicity and the filtration performances of PES membranes.
研究领域:
高分子化学
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材料科学
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膜技术
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高影响因子
危险品化学品经营许可证（带存储）