SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Zhihao Gao,Zhiyou Pu,Peiwen Yan,Xiaonan Fu,Siming Pang,Zhenyu Cui
To address the challenges of insufficient permeability and long-term operational stability for microfiltration (MF) membranes in biopharmaceutical sterilization applications, in this study, a preparation process based on the coupling of reverse thermally induced phase separation (RTIPS) and vapor-induced phase separation (VIPS) was developed to fabricate the polyethersulfone (PES) MF membranes with a funnel-like pore structure, high surface porosity, and narrow pore size distribution. The effects of the temperature of the casting solution, ambient humidity and the exposure time on the membrane structure and performance were systematically investigated. The results indicated that as the temperature of the casting solution increased, the thickness of the loose layer for the membrane gradually increased, accompanied by significant enhancements in pore size, porosity, and pure water permeability (PWP). The PWP increased from 6634.3 to 9032.7 L m −2 h −1 bar −1 . The increase in humidity significantly enhanced the mechanical properties of the membranes (from 4.2 MPa for M 58 – 35-4 to 5.5 MPa for M 58 – 80-4 ) and simultaneously improved the rejection rate of E. coli and the flux retention rate (maintaining 68% after 3 h of operation, significantly higher than the 36% of the M-RTIPS membrane). Combined with thermodynamic analysis and molecular dynamics (MD) simulations, the “wet inverse heat synergistic induction” phase separation mechanism was revealed from the perspectives of free volume fraction (FFV) and mean squared displacement (MSD). This study provides a new strategy for fabricating high-performance MF membranes and offers a theoretical basis for efficient sterilization in the biopharmaceutical field.
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2026
·
IF 9.9
Zhiruo Zhang,Wenlong Yu,Bin Wu,Qianqian Ge,Zhengzhi Zheng,Shudong Jiang,Ming Cao,Lifen Su,Bin Yang,Peng Chen,Ru Xia,Jiasheng Qian,Jibin Miao
PES/P(SSS-co-AA) composite membranes with -SO₃ − /-COO − were fabricated via in-situ copolymerization; • Carboxyl-functionalized mesoporous silica (CMS) was incorporated to form ion transportation channels; • The obtained composite membranes exhibited outstanding OH − permeability (U OH ) and selectivity (S). The practical application of poly (ether sulfone) -based cation-exchange membranes in alkaline diffusion dialysis is severely constrained by the intrinsic permeability-selectivity trade-off. Herein, mesoporous silica (MS) and carboxyl-functionalized mesoporous silica (CMS) nanoparticles are doped into the PES/P(SSS-co-AA) matrix via an in-situ blending strategy to fabricate a series of composite membranes for overcome trade-off. Separation performance is evaluated by diffusion dialysis (DD) tests in a NaOH/Na 2 WO 4 system. The results indicate that CMS incorporation significantly enhanced the membrane hydrophilicity. The optimized membrane with 6 wt% CMS loading achieves a hydroxide dialysis coefficient (U OH ) of 0.013 m/h and a separation factor (S) of 40.6. Compared with the unmodified MS-filled membrane (M6, S = 36.0), the CMS membrane (C6, S = 40.6) exhibits a 13% enhancement in ion-selectivity. In contrast to the pristine membrane (M0, S = 26.4), MS and CMS-modifications increase the separation selectivity by approximately 37% and 54%, respectively. The enhanced separation performance is attributed to the synergistic effect of negatively charged carboxylate groups (–COO − ) and hydrogen-bonding networks. The coexistence of Donnan exclusion toward WO 4 2− and accelerated OH − transport via the Grotthuss mechanism effectively alleviates the intrinsic permeability-selectivity. Download: Download high-res image (164KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122290
·
IF 7.5
Shujuan Yang,Mengyu Ren,Donghui Li,Yong Zhang,Haichuan Zhang
The development of ultrafiltration membranes with integral sponge-like structures is essential for efficient dyes and salts removal from textile wastewater. However, enhancing antifouling performance while controlling the formation of full sponge-like structures remains challenging. In this study, an amphiphilic copolymer (PVP-PS) was successfully polymerized and blended with PES via a single step phase inversion process, using N -vinylpyrrolidone (NVP) and styrene (St) as additives. Unlike single-monomer modifications that suffer from poor modifier retention or limited structural tunability, this dual-monomer strategy precisely regulates the hydrophilic-hydrophobic balance. By optimizing the ratio of hydrophilic/hydrophobic monomers, an entirely spongy-like membrane morphology was achieved. Scanning electron microscopy (SEM) confirmed the formation of the pore structure, while Fourier transform infrared spectroscopy (FTIR) verified the successful incorporation of the PVP-PS copolymer. The optimized membrane, designated S-M0.5, exhibited a water flux of 711.5 L‧m −2 ‧h −1 and excellent antifouling performance with a FRR exceeding 90%. When applied to separate a dye/salt mixture containing 2.5 g‧L −1 Na 2 SO 4 and 200 ppm Congo red (CR) at 1 bar, S-M0.5 achieved a high CR rejection rate of 98.38% alongside a low Na 2 SO 4 rejection rate of 9.86%, and a stable dye solution permeability of 83.6 L‧m −2 ·h −1 . These results highlight the potential of the developed membrane for practical textile wastewater treatment.
✓ 已验证
DOI
高影响因子
Materials Today Physics
·
2024
·
IF 10
Xiaoke Fang,Yi Zhang,Kaixiang Pang,Yuanhui Wang,Tingting Hu,Wei Zhang,Chunhong Gong,Jingwei Zhang
Although graphene nanosheets (GNs) with huge specific surface area and exceptional electrical properties exhibit attractive practical prospect in the realm of electromagnetic function materials, how to optimize the distribution states of GNs in matrix is still a challenge. In this work, the suspension of GNs was prepared directly via an efficient liquid-phase exfoliation (LPE) process in N-octyl-2-pyrrolidone (NOP). Thanks to the dissolution of polyether sulfone (PES) in NMP and NOP solvent, the GNs/PES composites were in-situ prepared via a facile solution blending in combination with evaporation process. The “function units” of the mesoscopic micro-cluster structure assembled by GNs during the solvent evaporation process contribute to optimized impedance matching characteristics and loss capabilities as well as excellent electromagnetic wave (EMW) absorbing performance of the as-constructed GNs/PES electromagnetic composites. Particularly, the as-prepared sample G-P-9 with a graphene content of as low as 9.0 wt% exhibits outstanding EMW absorbing performance in the whole ranges of tested frequency (8.2–12.4 GHz) and temperature (293–453 K) with a minimum reflection loss (RL) of −52.7 dB. Besides, the in-situ self-assemble GNs/single-walled carbon nanotubes (GNs/SWCNT) film with pre-constructed three-dimensional interpenetrating conductive network exhibits excellent electromagnetic interference (EMI) shielding effectiveness (SE) of about 5.1 × 10 4 dB cm 2 g −1 . The present approach would be applicable to construct high-performance electromagnetic functional materials and broaden the application prospect of high-integrity graphene nanosheets .
研究领域:
材料科学
·
电磁学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Yamin Li,lifang Lin,Shengwei Sun,Nana Li,Zhibin Liang
Calcium alginate hydrogel/polyethersulfone (CaAlg/PES) hybrid membranes were synthesized via combining in situ ion crosslinking with phase conversion method. Once the Sodium alginate (NaAlg) uniformly dispersed in the casting solution contacted with Ca 2+ dissolved in coagulation bath solution in the phase conversion membrane formation process, nanoscale CaAlg hydrogel was in situ formed through ion exchange and evenly dispersed in the membrane matrix. FT-IR and XPS were adopted to confirm the formation of CaAlg hydrogel distributed in PES membrane matrix. SEM, AFM, BET analysis and contact Angle analyzer were all used to characterize the surface changes of morphology, roughness and hydrophilicity in detail. Specific separation performance was also evaluated and compared by cross-flow ultrafiltration tests. Comprehensive analysis of the measured properties of all obtained membranes, when the content of NaAlg was 1.5 wt%, the CaAlg/PES hydrogel membrane M 32 had the most excellent performance. The pure water flux increased from 1967 to 2193 L/m 2 hMPa, rejection rate of BSA was up to 99.87 %, and RFR value was almost 76.83 % after 4 cycles BSA filtration. XPS characterization of the membrane after filtration for 72 hours showed that the retention rate of Ca (2 P) reached 95 %, which further proved the stability of the membrane operation.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 9
Jingtai Wang,Wenliang Wang,Niamat Ullah,Ming Qi,Ningxin Zhou,Yunxia Hu
A novel high-flux polyethersulfone- block -polyethylene glycol (PES- b -PEG) microfiltration (MF) membrane was developed via the vapor-assisted non-solvent-induced phase separation (V-NIPS) method using a 10-s humid air bath. Compared to control PES membranes, the PES- b -PEG membranes exhibit a looser, hourglass-like structure with higher porosity, larger pore diameters, and enhanced water flux and filtration capacity. The onset position of the hourglass-like pores can be finely tuned by adjusting the humid air bath time, enabling significant control over pore diameter and water permeance. Incorporation of PEG into the block copolymer, along with the low viscosity of the casting solution, accelerates water uptake and improves compatibility with water during V-NIPS, promoting efficient vapor-induced phase separation (VIPS) and the formation of a looser, highly permeable structure. With a 10-s air bath, the PES- b -PEG membrane achieves water flux of 45,712 L m −2 h −1 bar −1 , a pore diameter of 0.8 μm, 99.5 % rejection of 1.0 μm polystyrene microspheres, and a filtration capacity of 1,233 L m −2 (at 10 % flux decline). This study highlights the advantages of PES- b -PEG block copolymers for producing high-performance MF membranes with a tailorable hourglass-like architecture via ultrashort humid air exposure.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Xiguang Zhang,Huaiyuan Wang,Zhanjian Liu,Yixing Zhu,Shiqi Wu,Chijia Wang,Yanji Zhu
A durable fluorine-free polyethersulfone (PES) superhydrophobic composite coating with excellent wear-resistant and anti-corrosion properties has been successfully fabricated by combining sol-gel and spray technology. The robust micro/nano-structures of the prepared surface were established by introducing binary montmorillonite-silica (MMT-SiO 2 ) assembled composite particles, which were formed by in-situ growth of SiO 2 on MMT surfaces via sol-gel. Combined with the low surface energy of amino silicon oil (APDMS), the fluorine-free superhydrophoic PES coating was obtained with high water contact angle 156.1 ± 1.1° and low sliding angle 4.8 ± 0.7°. The anti-wear of the final PES/APDMS/MMT-SiO 2 superhydrophobic coating can reach up to 60,100 cycles, which is outdistancing the pure PES coating (6800 cycles) and the PES/MMT/SiO 2 coating prepared by simple physical mixture (18,200 cycles). The enhanced wear resistance property can be mainly attributed to the lubrication performance of APDMS and stable interface bonding force between the MMT surface and SiO 2 . Simultaneously, potentiodynamic polarization curves and electrochemical impedance spectroscopy exhibited the outstanding anti-corrosion property of PES/APDMS/MMT-SiO 2 composite coating, with low corrosion current (1.6 × 10 −10 A/cm 2 ) and high protection efficiency (99.999%) even after 30 d immersion process. These test results show that this durable superhydrophobic PES composite coating can be hopefully to provide the possibility of industrial application.
研究领域:
材料科学
·
表面工程
·
防腐保护
·
纳米复合材料
·
涂层技术
✓ 已验证
DOI
高影响因子
CHEMOSPHERE
·
2020
·
IF 5.778
Xiaoping Wang,Chao Wu,Tongren Zhu,Pan Li,Shengji Xia
Membrane fouling is an issue of concern due to the hydrophobic properties of polyethersulfone (PES) membrane when applied in water treatment . In this work, a facile hydrothermal method was utilized to synthesize hierarchical flower-like structured molybdenum disulfide nanosheets (HF–MoS2 NSs) that then incorporated into PES membranes as composite membranes. We characterized their permeability, the separation performance, the antifouling performance, and the antibacterial activity systematically. Results showed that composite membranes exhibited a better pure water flux (286 LMH/bar) at the HF–MoS 2 NSs content of 0.4 wt%, which was 1.8 times higher than the control membrane. Also, composite PES membranes achieved 98.2% and 96.9% rejection of BSA and HA in comparison with the control PES membrane (87.3%, and 84.5%, respectively). Compare to the control PES membrane, the flux recovery ratio of the composite membrane increased from 69% to 88% for BSA fouling and increased from 84% to 93% for HA fouling. The retention rate for the organic dyes also improved slightly after HF–MoS2 NSs incorporation into the membrane. Additionally, the composite membranes exhibited a relatively high antibacterial activity against E. coli and B. subtilis with antibacterial rates of 67.8% and 82.5%, respectively. In conclusion, HF–MoS2 NSs incorporated composite membranes were shown to have outstanding filtration performance and could be a promising candidate for practical application in water filtration.
研究领域:
材料科学
·
环境科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2018
·
IF 6.578
Daowei Zhou,Yixing Zhong,Jie Yang,Jiangyu Qi,Yayun Zhuo,Yong Sha
By means of chemical combination between the Polydimethylsiloxane (PDMS) layer and Polyethersulfone (PES) layer, a kind of PDMS/PES composite membrane was prepared for separation of the light hydrocarbon components from the drilling mud. Meanwhile, its separation performance of the light-hydrocarbon components from the drilling mud was investigated and evaluated quantitatively. Results showed that the prepared PDMS/PES composite membrane had good mechanical performance, and it was resistant to corrosion of the water-based drilling mud. The PDMS/PES composite membrane can work stably at 5 MPa and 393 K. The responding time of the membrane to sudden change of the hydrocarbon gas content was less than one minute. For either single phase flow or gas-liquid two-phase flow, a high flow rate was recommended to avoid non-ideal flow patterns and to increase mass transfer in the feed channel of the membrane cell . Results in this work could be helpful for further application of the membrane technology in geological mud logging.
研究领域:
材料科学
·
石油工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2017
·Vol. 135
·期 12
·45923
·
IF 1.86
Sujiao Cao,Fang Qiu,Chen Xiong,Xiaojun Wang,Gang Zhang,Shengru Long,Jie Yang
With polydopamine (PDA) acting as interlayer, combined with electrospinning technology and a silanization method, here a versatile method for fabricating a superhydrophobic PES/PDA/ODTS fibrous mat is reported. Scanning electron microscopy, attenuated total reflection Fourier transform infrared spectroscopy, and contact angle measurements were applied to characterize the morphologies and chemical composition changes of the prepared fibrous mats. Their separation ability for oil/water mixtures was measured by self-made instruments. The results show that the fabricated PES/PDA/ODTS fibrous mat displays a water contact angle too large to be assessed by the ordinary amount of water applied in a conventional measurement. In other words, a water drop of less than 10 μL adheres to the syringe needle and leaves with it during the measurement. The prepared PES/PDA/ODTS fibrous mat also shows a threshold sliding angle no more than 2.5°. At the same time, this kind of material exhibits superoleophilicity for organic solvents, such as n -hexane, gasoline, toluene, and chloroform. The experimental contact angles were also analyzed using the Cassie–Baxter model to gain insights into the fundamental microstructure–wetting property relationship. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 45923.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Ruiyuan Jia,Xiaomeng Yu,Wenhui Wang,Kemeng Du,Yuru Liu,Yufei Wang,Wenjun Wu,Jin Guo
A lanthanum-modified polyethersulfone composite membrane (La-PES) loaded with nitrogen-doped carbon nanotubes (NCNT@La-PES) was successfully fabricated in this study. The NCNT@La-PES membrane could activate PMS, which enabled the degradation of phosphonate to phosphate, while also possessing the capability for adsorptive recycling of phosphorus. During the processing of 10.31 mg/L 1-hydroxyethane-1,1-diphosphonic acid (HEDP) in the NCNT@La-PES / PMS system, the removal efficiency of HEDP achieved 100 %, and almost 78 % of total phosphate (TP) in HEDP was transformed into phosphate, which were further adsorptive recycled by the La-PES membrane. The NCNT@La-PES/PMS system demonstrated exceptional performance across a broad pH range (4–10), with complete removal of HEDP and adsorption recovery of 73 % transformed phosphate. The decrease in pH caused by catalytic reaction reduced the hindrance of the alkaline environment to phosphate adsorption. The NCNT, acting as a catalyst, facilitated the formation of surface-bound radicals upon PMS activation, playing a pivotal role in the degradation of HEDP. The adsorption of phosphate by La-PES was primarily attributed to the ligand exchange between La(OH) 3 and phosphate. Moreover, NCNT@La-PES/PMS system showed significant catalytic and adsorption performance in consecutive cyclic treatment of HEDP in actual water, indicating its potential in practical application.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2020
·
IF 5.774
Jichao Wang,Jiayu Tian,Shanshan Gao,Wenxin Shi,Fuyi Cui
The low reactivity and poor compatibility of hydrophobic polymer base with hydrophilic additives poses a challenge for preparation of antifouling ultrafiltration (UF) membrane. In this work, the allyloxy nonylphenoxy propanol polyoxyethylene (SE-10N) ether ammonium sulfate (AHPS), which possessing excellent reactivity and amphiphilicity, was grafted onto PES membrane surface via dopamine triggered one-step polymerization and co-deposition process. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) confirmed that AHPS was easily anchored onto the membrane surface with the assistance of dopamine. Field emitting scanning electron microscope (FESEM) and atomic force microscopy (AFM) also demonstrated the formation of a new coating on membrane surface. The modified layer significantly enhanced the hydrophilicity of the ultrafiltration membrane, as confirmed by the decrease of contact angle from 77.2° to 55.8°. As a result, the modified membrane exhibited remarkably improved anti-fouling properties. The static adsorption of bovine albumin (BSA) on membrane surface was decreased from 77.2 to 34.3 µg/cm 2 . Furthermore, the modified membrane displayed higher flux recovery (95.9%) and fouling reversibility (51.6%) than unmodified membrane (56.7% and 23.0%, respectively). Besides, the modified membrane also showed better structural stability in acid and alkali solutions as compared with pure polydopamine coated membrane. Therefore, this study provided a facile approach for improving the anti-fouling performance of membranes.
研究领域:
材料科学
·
环境工程
✓ 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）