JOURNAL OF APPLIED POLYMER SCIENCE
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2015
·Vol. 133
·期 9
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IF 1.768
Fang Qiu,Minle Peng,Zhimei Wei,Xiaojun Wang,Jie Yang
A novel kind of sulfonated polyethersulfonephenylethane (SPESPE) was successfully synthesized firstly in this work. Then the SPESPE was introduced in polyethersulfone (PES) microspheres prepared by the electrospraying technique. The microspheres were applied to adsorbing bisphenol A (BPA) from its aqueous solution. Compared with the PES microspheres, the adsorption capacity of PES/SPESPE microspheres for BPA was increased significantly. Furthermore, the adsorption capacity of PES/SPESPE microspheres was enhanced by increasing the amounts of SPESPE in the microspheres. The pH of solution had influence on the adsorption capacity of PES/SPESPE microspheres. The kinetic data of adsorption were found to follow pseudo-second-order model. The Freundlich isotherm model was suitable to describe the equilibrium adsorption data. The microspheres also showed excellent regeneration and reuse ability. These results indicated that the PES/SPESPE microspheres have the potential to be used in environmental application. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43066.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Fangli Zhang,Miao Fu,Yu Huang,Rizhi Chen,Enrico Drioli,Zhaohui Wang,Zhaoliang Cui
Sulfonated poly(ether sulfone) (SPES) has high water vapor permeability and selectivity, and permeability is a key characteristic that determines the dehumidification performance. The excellent properties of SPES make it a favorable competitor for dehumidification materials. In order to obtain SPES, PES must be sulfonated. The effect of the degree of sulfonation on the structure and properties of SPES dense membranes manufactured by the solvent evaporation method was studied, and the prepared membranes with different degrees of sulfonation were applied in the dehumidification process to investigate the effect of the degree of sulfonation on the dehumidification performance. The results show that the hydrophilicity (contact angle and water absorption) of the SPES dense membrane is stronger with the higher degree of sulfonation. On the other hand, the mechanical strength of SPES membranes showed the opposite trend, because the polymer degraded during the sulfonation reaction, contributing to a decrease in the mechanical strength of SPES membranes. During the dehumidification process, the dehumidification performance of SPES membranes was significantly improved with the increase of the sulfonation degree, and the dehumidification efficiency and water vapor permeation flux of the 50% SPES dense membrane were the best, which were 42.8% and 13.4 × 10–6 kg·m–2·h–1, respectively.
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
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Lei Qiao,Hui Ye,Qingping Xin,Lilan Huang,Yuzhong Zhang,Hong Li
A sulfonated polyethersulfone/functionalized graphene membrane (SPES/CSrGO) was developed through a facile ‘one-pot’ method for hardness removal. The concentrated sulfuric acid (H 2 SO 4 ) was used as both sulfonating agent for PES materials and solvent for preparing casting solution of SPES/CSrGO. The sulfonic acid group of SPES could form hydrogen bond with carboxyl group on CSrGO, improving the dispersibility of CSrGO in membrane. The SPES/CSrGO membrane with uniform dispersion of CSrGO showed good adsorption–desorption behavior in static adsorption. The SPES/CSrGO membrane with CSrGO content of 30 wt% (SPES/CSrGO-30) showed the highest static adsorption capacities for Ca 2+ (82.52 mg/g) and Mg 2+ (74.21 mg/g), respectively. In artificial seawater, the SPES/CSrGO-30 membrane also exhibited good adsorption performance and the adsorption capacities of Ca 2+ and Mg 2+ reached 26.27 mg/g and 50.1 mg/g. In dynamic adsorption, the adsorption capacities of SPES/CSrGO-30 for Ca 2+ and Mg 2+ were 43.63 mg/g and 34.29 mg/g, respectively. More importantly, the hydrophilicity CSrGO endowed the excellent antifouling property of SPES/CSrGO membrane. This strategy showed a high potential for the removal of hardness during the ultrafiltration process and provided a promising direction to the design of high-performance adsorptive membranes.
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
Scientific Reports
·
2022
·Vol. 12
·期 1
·1-16
·
IF 4.996
Talukder Md Eman,Pervez Md. Nahid,Jianming Wang,Stylios George K.,Hassan Mohammad Mahbubul,Song Hongchen,Naddeo Vincenzo,Figoli Alberto
In this work, Eucommia ulmoides leaf extract (EUOLstabilized silver nanoparticles (EUOL@AgNPs) incorporated sulfonated polyether sulfone (SPES)/polyethersulfone (PES) electrospun nanofiber membranes (SP ENMs) were prepared by electrospinning, and they were studied for the removal of lead (Pb(II)) and cadmium (Cd(II)) ions from aqueous solutions. The SP ENMs with various EUOL@AgNPs loadings were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscope, thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and contact angle (CA) measurements. The adsorption studies showed that the adsorption of Cd(II) and Pb(II) was rapid, achieved equilibrium within 40 min and 60 min, respectively and fitted with non-linear pseudo-second-order (PSO) kinetics model. For Cd(II) and Pb(II), the Freundlich model described the adsorption isotherm better than the Langmuir isotherm model. The maximum adsorption capacity for Cd(II) and Pb(II) was 625 and 370.37 mg g −1 respectively at neutral pH. Coexisting anions of fluoride, chloride, and nitrate had a negligible influence on Cd(II) removal than the Pb(II). On the other hand, the presence of silicate and phosphate considerably affected Cd(II) and Pb(II) adsorption. The recyclability, regeneration, and reusability of the fabricated EUOL@AgNPs-SP ENMs were studied and they retained their high adsorption capacity up to five cycles. The DFT measurements revealed that SP-5 ENMs exhibited the highest adsorption selectivity for Cd(II) and the measured binding energies for Cd(II), Pb(II), are 219.35 and 206.26 kcal mol −1 , respectively. The developed ENM adsorbent may find application for the removal of heavy metals from water.
研究领域:
材料科学
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环境科学
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
·
IF 8.1
Weijiao Jiang,Jin An,Feng Gao,Yiwen Hu,Xiuduo Song,Dandan Chen,Ruizhang Xu,Jian Kang,Ya Cao,Ming Xiang
The “trade-off” effect of nanofiltration membranes may lead to problems of lower flux and higher energy cost, which limit their applications. In this work, an ultra-thin polyamide selective layer (34 nm in thickness, much lower than the conventional polyamide selective layer) was prepared by constructing a sulfonated polyethersulfone interlayer on the surface of polysulfone ultrafiltration membranes by liquid-phase deposition, taking advantage of the inhibitory effect of sulfonated polyethersulfone nanoparticles on the diffusion of piperazine. The prepared nanofiltration membrane exhibits a water flux per unit pressure of 33.2 L·m −2 ·h −1 ·bar −1 , which is more than 2.5 times higher than that of the nanofiltration membrane without the introduction of the interlayer (12.2 L·m −2 ·h −1 ·bar −1 ). Additionally, it has a high rejection of 98.8 % for Na 2 SO 4 , which surpasses the upper limit of the equilibrium of trade-off. The study also delves into the modulation mechanism of the interfacial polymerization process by the presence of a sulfonated polyethersulfone interlayer and explores the potential reasons for the water flux enhancement. This research will likely provide theoretical support and practical experience for further optimization of nanofiltration membrane performance.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2025
·
IF 8.2
Qihang Wang,He Ren,Hongyang Ma,Shyam Venkateswaran,Benjamin S. Hsiao
An ultrathin nanofibrous composite nanofiltration (NF) membrane was developed through controlled interfacial copolymerization where an electrospun sulfonated poly(ether sulfone) (SPES) nanofibrous membrane serves as the substrate and 2,5-diaminobenzenesulfonic acid (2,5-DABSA) and piperazine (PIP) serve as aqueous phase monomers. The integration of the electrostatic interaction and hydrogen bonding between SPES nanofibers and PIP/2,5-DABSA triggered the controlled diffusion rate of monomers into the organic phase, resulting in the fabrication of an ultrathin polyamide barrier layer (∼56 nm). Additionally, a polyamide structure was created through the ternary interfacial copolymerization of PIP/2,5-DABSA and trimesoyl chloride (TMC), which offers high permeability to the composite NF membrane. Meanwhile, the −SO3H groups on 2,5-DABSA issued highly negative charges to the polyamide barrier layer, leading to a significant improvement in the rejection ratio against SO42– and fouling resistance against bovine serum albumin. The impact of 2,5-DABSA monomer on the cross-linking degree and pore size distribution of the polyamide barrier layer was investigated by optimizing the proportion of PIP and 2,5-DABSA monomers in the interfacial polymerization (IP) process. The ion selectivity and robustness of the composite NF membrane was determined and compared with conventional and commercial NF membranes comprehensively. Molecular dynamics simulations were conducted to demonstrate the mechanism of the controlled diffusion of monomers; the cross-linking degree and fractional free volume of the polyamide barrier layer were also evaluated. The NF-M(1:1) composite membrane exhibited a significant enhancement in the permeation flux as 137.4 L/m2·h at 0.5 MPa, which was 4 times higher than that of conventional NF membranes, while maintaining excellent divalent salt rejection against Na2SO4 at 99.4%, compared with 98.0% of the conventional NF membrane, effectively breaking through the trade-off effect in the long-term filtration performance.
研究领域:
材料科学
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环境工程
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2020
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IF 5.774
Xing Yin,Zhaoju Zhang,Hongyang Ma,Shyam Venkateswaran,Benjamin S. Hsiao
Electrospun sulfonated polyethersulfone (SPES) nanofibrous membranes with ultra-fine mean fiber diameter, e.g., 62 ± 16 nm, were fabricated by a two-nozzle electrospinning approach and employed as a multi-functional membrane for removal of nanoparticles , dyes, and heavy metal ions from multicomponent wastewater through filtration and adsorption, simultaneously. The pore size and pore size distribution of the membrane could be varied and adjusted by controlling the fiber diameter, which affects the filtration retention of nanoparticles while the sulfonic groups located on the surface of the nanofibers work as active sites for the adsorption of dyes and heavy metal ions by electrostatic interaction. Increase in the degree of sulfonation and decrease in the concentration of solution led to the reduction of fiber diameter of the electrospun nanofibrous membranes, as evidenced by SEM and TEM measurements, in addition to the increase in the molecular weight of SPES. The adsorption kinetics and thermodynamics of the nanofibrous membrane for cationic dye and heavy metal ions were investigated, separately, in addition to the filtration performance of nanoparticle suspensions. The ultra-fine nanofibrous SPES membrane was finally tested, with simulated multicomponent wastewater containing 0.2 μm-particles, methylene blue (MB), and Pb (II) ions. The membrane exhibited high permeation flux of 320 L/m 2 h, high retention of >99.0% against nanoparticles, MB and Pb (II), as well as high treated capacity in the filtration performance. The nanofibrous SPES membranes after adsorption of MB and Pb (II) were able to be recovered which indicated the sustainable nature of the membrane for real wastewater treatment.
研究领域:
环境科学
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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
JOURNAL OF MEMBRANE SCIENCE
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2023
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IF 9.5
Feng Gao,Honglin Liu,Yue Zhang,Demin Liu,Zhihui Xie,Wanxin Peng,Yuchen Song,Ran Hu,Dandan Chen,Jian Kang,Ruizhang Xu,Ya Cao,Ming Xiang
Stripe patterned nanofiltration (NF) membranes were established via sulfonated polyether sulfone nanoparticles (SPES NPs) regulated interfacial polymerization. The nanoparticle was prepared by nonsolvent-induced phase separation to serve as a regulator, confining piperazine (PIP) diffusion towards organic phase through chemical affinity and steric effect. Consequently, intensive stripes in nanoscale have emerged and were uniformly distributed throughout the membrane. The internal characteristics of the structure were observed and revealed distinguishable ordered voids at the bottom of the polyamide (PA) layer. The generation and evolution, from the conventional nodular structures to stripe patterns, were investigated by optimizing the thickness of pristine NF membranes and incorporating different concentrations of SPES NPs. The resultant SPES-1.0@NFM-II with a distinctive morphology of interconnected labyrinthine networks on top and bottom surfaces of PA active layer, exhibited significant enhancement in water permeance (23.04 L m −2 h −1 bar −1 , versus 12.15 L m −2 h −1 bar −1 of conventional NFM-II) while maintaining excellent divalent salt rejection (99.42% for Na 2 SO 4 ).
研究领域:
材料科学
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环境工程
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2024
·
IF 2.8
Wei Wang,Peipei Li,Jiaqi Wang,Baiyu Xu
BACKGROUND An antifouling and acid/alkali-resistant sulfonated polyethersulfone (S-PES)/polysulfate (PSE) composite ultrafiltration (UF) membrane prepared via a nonsolvent-induced phase separation (NIPS) method was used for the purification of ulinastatin (UTI) as an examplar protein-based drug. RESULT The effect of the content of S-PES on the structure and UF performance of the S-PES/PSE composite UF membrane was investigated. The acid/alkaline resistance of the S-PES/PSE membranes was evaluated in the pH range 5–10 suitable for a UTI solution. UF desalination experiments were carried out on UTI elution collection solution, and the antifouling performance and long-term stability of S-PES/PSE composite UF membrane were evaluated. The results indicate that, for the optimal content of 4% S-PES, pure water flux increased from 120 to 726 L m −2 h −1 , WCA decreased from 79.3° to 51.0°, and the rejection of UTI was 95.90% ± 1.1% compared to PSE. Compared with PES and PSF membranes, the flux recovery rate of the S-PES/PSE composite UF membrane was 80.63% (an increase of 32.48%), and the UTI adsorption was only 75.00 μg cm −2 (a decrease of 88.00%) after simulated antifouling experiments. CONCLUSION The S-PES/PSE composite UF membrane has excellent long-term stability, suggesting significant potential for application in the purification of protein-based drugs and in large-scale UTI purification. © 2024 Society of Chemical Industry (SCI).
研究领域:
材料科学
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生物医学工程
·
制药工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2012
·
IF 4.951
Lie Chen,Lina Sun,Rong Zeng,Shuqin Xiao,Yiwang Chen
Hybrid cross-linked membranes of SPES/TEOS/TPABS for direct methanol fuel cells (DMFCs) are synthesized by sulfonated poly(ether sulfone) (SPES), tetraethoxysilane (TEOS) and a zwitterionic silica containing sulfonic acid and ammonium groups, 3-[[3-(triethoxysilyl)-propyl]amino]butane-1-sulfonic acid (TPABS) using a sol-gel process with the goal of obtaining high proton conductivity , low methanol permeability and good stability. Increasing the amount of inorganic zwitterionic TPABS produces membranes that become denser and more uniform. The increasingly SO 3 -rich cross-linked networks consequently lead to higher proton conductivity and lower methanol permeability. It should be noted that the proton conductivity reaches as high as that of Nafion ® 117, whereas the methanol permeability is greatly reduced by the formation of the cross-linked structures. Among these membranes, SPES/TEOS/TPABS-70 (70 wt % of TPABS to SPES in the membrane matrix), shows the best performance with a proton conductivity value of 7.24 × 10 −2 S cm −1 , methanol permeability value of 2.46 × 10 −7 cm 2 s −1 , ion-exchange capacity value of 1.37 mequiv g −1 and a comparable selectivity parameter of 2.63 × 10 5 S cm −3 s.
研究领域:
材料科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
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2018
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IF 3.483
Zhanjun Cai,Rui Li,Xianlin Xu,Guoguang Sun,Xupin Zhuang,Ya Liu,Bowen Cheng
Optimization of chemical composition and topography is vital to obtain high-performance proton exchange membranes (PEMs). In this work, cellulose nanofibers were incorporated with phosphoric acid and embedded into the sulfonated poly (ether sulfone) (SPES) matrix to develop PEMs with improved proton conductivity by building proton transfer channels and providing additional proton transport sites. The morphology and chemical structure of the nanofibers doped with different phosphoric acid concentrations and the performance of the composite PEMs were characterized by multi-technics. The results showed that the thermal stability, water swelling ratio (SR) and proton conductivity of the composite membrane were improved in the phosphoric acid-doped cellulose nanofibers. The maximum conductivity (0.154 S/cm, 80 °C, 100 RH) was reached for composite membranes with cellulose nanofibers doped with 0.25 mol/L phosphoric acid. Hence, composite membranes containing proton-conducting cellulose nanofibers could be used to develop novel PEMs for fuel cells.
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2019
·
IF 7.467
Liyuan Wang,Nanping Deng,Yueyao Liang,Jingge Ju,Bowen Cheng,Weimin Kang
In this study, a novel MOFs-anchored-nanofiber framework (UiO-66-NH 2 @NFs) is designed via electrospinning. To hybridize with Nafion matrix , UiO-66-NH 2 @NFs/Nafion membranes with acid-base pairs are fabricated. In the framework, sulfonated poly(ether sulfone) (SPES) nanofibers with effective –SO 3 H groups serve as bonding platforms and UiO-66-NH 2 with –NH 2 groups act as co-reinforcement units tethering in nanofibers. As systematically studied and compared in membrane performance , the homogeneous UiO-66-NH 2 @NFs/Nafion membrane with a moderate UiO-66-NH 2 filler amount of 8 wt% present excellent performance on elevating proton conductivity of 0.27 S cm −1 (80 °C, 100% RH) and inhibiting methanol permeability of 7.54 × 10 −7 cm 2 s −1 , respectively. The above superiorities can be attributed to the unique MOFs-anchored-nanofiber framework with balanced acid-base pairs. The interconnected UiO-66-NH 2 @NFs framework with hydrophilic SPES nanofibers and UiO-66-NH 2 offer consecutive proton transfer channels, making protons easily transfer via the hydration channels. Moreover, –NH 2 groups in UiO-66-NH 2 and –SO 3 H groups in matrix interact via acid-base pairs, which synergistically conducts protons via proton hopping channels in the membranes. Meanwhile, the good compatibility of UiO-66-NH 2 @NFs with Nafion matrix resulting from the tight electrostatically interactions between –NH 2 and –SO 3 H groups endow the hybrid membranes with suppressed methanol permeation and strengthened mechanical properties .
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
危险品化学品经营许可证（带存储）