CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Shao-Lu Li,Qiyu Duan,Mengfan Wang,Bo Wu,Ning Yu,Genghao Gong,Yunxia Hu
In recent years, organic solvent nanofiltration (OSN) technology has garnered significant interest owing to its eco-friendly and low-carbon characteristics, offering efficient molecular separation in organic solvents. However, most scalable OSN membranes reported still suffer from the inherent permeability and selectivity trade-off effect, which inevitably hampers their industrial applications. In this study, we design and synthesize a novel bicyclic molecule 2,3,6,7-tetrahydroxy- maleimidoanthracene (THMIA), featuring a rigid, contorted configuration as well as four phenolic reactive groups. By exclusively employing THMIA reacted with trimesoyl chloride (TMC) through interfacial polymerization on a PAN substrate, we fabricate advanced TFC OSN membranes. The optimal THMIA/TMC composite membrane exhibits a high methanol permeance of 20.4 LMH/bar and good solutes retention ability with MWCO value as low as 289 Da. This outstanding separation performance should arise from the synergistic effects of crumpled membrane surface, elevated microporosity and ultra-thin thickness (∼14 nm) of the polyarylate nanofilm. In addition, the THMIA/TMC membrane shows promising prospects for the fast and reliable separation of various active pharmaceutical ingredients (APIs) and recovery of homogeneous organometallic catalyst from organic media. Overall, this study offers some new insights into utilization of the rigid bicyclic molecule as an aqueous IP monomer to facilely construct highly perm-selective OSN membranes.
研究领域:
材料科学
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化学工程
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环境科学
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DOI
高影响因子
Scientific Reports
·
2026
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IF 4.9
Wang Jing,Wang Pei,Wang Baojin,Liu Jian,Huang Min,Han Wei,Li Xinzhe,Gao Yun,Xiong Wei
Balancing mechanical strength, controllability of degradation and bioactivities, remains a significant challenge for absorbable barrier membranes in guided bone regeneration (GBR) for the treatment of bone defects. To overcome these limitations, a novel absorbable synthetic PGA-TMC/PTMC/nHA (PGTTH) barrier membrane was developed using electrospinning technology to prolong barrier duration and promote rapid bone repair. The PGTTH membrane integrates three functional components in a one-step fabrication process: a poly (glycolic acid-co-trimethylene cabonate) (PGA-TMC) copolymer matrix providing mechanical integrity, polytrimethylene carbonate (PTMC) imparting flexibility and a slow, linear degradation profile to ensure long-term structural stability, nano-hydroxyapatite (nHA) delivering bioactive ions to enhance osteogenesis and biomineralization. To systematically evaluate the performance of the PGTTH membrane, mechanical characterization and in vitro degradation tests confirmed that the membrane exhibits appropriate mechanical properties and a slow degradation profile, thereby demonstrating its ability to maintain structural space over an extended period. Furthermore, in vitro and in vivo studies demonstrated that the PGTTH membrane significantly promotes cell adhesion, proliferation, and osteogenic differentiation. In conclusion, this study not only presents a promising GBR barrier membrane material with potential for clinical application, but also offers a new design strategy and experimental basis for developing absorbable membranes that combine excellent barrier functionality with osteoinductive capacity.
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Shuang Mi,Xulin Hu,Zhidong Lin,Tianfang Huang,Hua Yang,Junlin Lu,Qing Li,Luyao Xing,Jian He,Chengdong Xiong
Porous biodegradable bone scaffold is a remarkable strategy for bone-tissue engineering. It is well known that some basic requirements such as the biodegradabilty, biocompatibility, porous structure, surface properties, mechanical properties and plasticity of the scaffolds are vital for new bone formation. In this article, we adopted a low temperature method and poly (dopamine) coating strategy to fabricate porous shape-memory poly ( L -lactide-co-trimethlyene carbonate)/calcium sulfate hemihydrate-poly (dopamine) microsphere scaffolds with uniform microstructure. Compared with PLLA-TMC microspheres, PLLA-TMC/CSH and PLLA-TMC/CSH-dPA microspheres have rougher surface and increased Tg . The mechanical properties and biodegradability of scaffolds were also tested in vitro, and the biocompatibility and osteoconductivity were monitored by CCK-8 and ALP activity assay using MC3T3-E1 cells. Strikingly, compared with PLLA-TMC scaffolds, PLLA-TMC/20CSH scaffolds possessed an enhanced initial compression modulus and higher degradation rate . Meanwhile, the compression modulus of all P/CSH scaffolds matched the cancellous bone during degradation period (103.04–623.75 MPa). Moreover, the PLLA-TMC/CSH-dPA microsphere scaffolds were non-toxic and contributed to cell adhesion. In summary, the prepared PLLA-TMC/CSH-dPA microsphere scaffold in this work is a promising approach for bone-tissue engineering.
研究领域:
骨组织工程
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生物材料学
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再生医学
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DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2018
·Vol. 94
·期 9
·2838-2843
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IF 2.587
Runlin Han,Yongli Xie,Xufeng Ma,Da Teng,Shouhai Zhang,Xigao Jian
BACKGROUND Nanofiltration membrane has attracted great study interest because of its high permselectivity and low operating cost. However, most commercial nanofiltration membranes are still not applicable for chemical separation processes due to their low resistance to organic solvent and chlorination. RESULTS 2,4,6-triaminopyrimidine (TAPI) was employed as an aqueous phase monomer to prepare poly (2,4,6-triaminopyrimidine-TMC) composite nanofiltration membrane with interfacial polymerization. Polyimide (P84) ultrafiltration (UF) membrane was crosslinked with TAPI and used as the supporting membrane. The composite membrane showed high rejection (91.4%) of Na 2 SO 4 and a high flux (7.3 L m −2 h −1 ) at 0.3 MPa and ambient temperature. The membrane also showed high stability during 120 h immersion in N,N -dimethylacetamide (DMAc) and acetone. The performance of membrane immersed in 200 ppm NaClO solution did not decline over 96 h. CONCLUSION TAPI with reactive amino group can be used as aqueous phase monomer to prepare poly (2,4,6-triaminopyrimidine-TMC) composite nanofiltration membrane with high permselectivity. The pyrimidine ring of TAPI endows the functional layer with excellent chlorine resistance while the crosslinking of P84 membrane with TAPI significantly improves the solvent resistance. © 2018 Society of Chemical Industry
研究领域:
材料科学
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膜技术
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化学工程
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分离科学
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Zhiguo Li,Fangbo Zhao,Hongxu Chen,Liu Yang,Jiaming Zhang
The active layer of the thin film composite (TFC) nanofiltration membrane prepared by traditional interfacial polymerization (IP) was usually a non-homogeneous state with dense in the middle and loose on both sides. Such structure would reduce the stability of membrane in operation. In this paper, a novel electrospray polymerization nanofiltration (EPNF) membrane was fabricated for efficient and long-term stable separation for Mg 2+ /Li + by multiple scan 3D electrospray printing technique. The active layer consisted of two homogeneous separation layers, the piperazine-trimesoyl chloride (PIP-TMC) inner layer and polyethyleneimine based (PEI-TMC) outer layer. With a fixed scan of inner layer, the effect of scan number of PEI-TMC outer layer on the performance of EPNF membrane was analyzed detailly from chemical structure and ion separation performance. Under the synergistic effect of electrostatic repulsion and pore size screening, the EPNF membrane achieved a Mg 2+ /Li + separation factor of 36.28 and only 1.5 % performance loss in the operation of 150 h. The electrospray polymerization process presented unique advantages in preparing TFC nanofiltration membranes with long-term separation stability.
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
APPLIED SURFACE SCIENCE
·
2017
·
IF 3.387
Jun Cheng,Wenxin Shi,Lanhe Zhang,Ruijun Zhang
A novel polyester thin film composite nanofiltration (NF) membrane was prepared by interfacial polymerization of pentaerythritol (PE) and trimesoyl chloride (TMC) on polyethersulfone (PES) supporting membrane. The performance of the polyester composite NF membrane was optimized by regulating the preparation parameters, including reaction time, pH of the aqueous phase solution, pentaerythritol concentration and TMC concentration. A series of characterization, including permeation experiments, attenuated total reflectance-fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscope (SEM), atomic force microscopy (AFM), zeta potential analyzer and chlorine resistance experiments, were employed to study the properties of the optimized membrane. The results showed that the optimized polyester composite NF membrane exhibited very high rejection of Na 2 SO 4 (98.1%), but the water flux is relatively low (6.1 L/m 2 h, 0.5 MPa, 25 °C). The order of salt rejections is Na 2 SO 4 > MgSO 4 > MgCl 2 > NaCl, which indicated the membrane was negatively charged, just consistent with the membrane zeta potential results. After treating by NaClO solutions with different concentrations (100 ppm, 500 ppm, 1000 ppm, 2000 ppm, 3000 ppm) for 48 h, the results demonstrated that the polyester NF membrane had good chlorine resistance. Additionally, the polyester TFC NF membrane exhibits good long-term stability.
研究领域:
材料科学
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膜技术
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2023
·
IF 9.5
Huanhuan Wu,Haoyue Zhao,Yakai Lin,Xin Liu,Lin Wang,Hong Yao,Yuanhui Tang,Lixin Yu,Haihui Wang,Xiaolin Wang
Positively charged nanofiltration membrane has gained significant interest in magnesium and lithium separation due to its separation mechanism, especially in salt lake-based lithium industry. To obtain a high-density positive charged surface and high Li + /Mg 2+ selectivity, a novel thin-film nanocomposite (TFN) nanofiltration (NF) membrane for recovery of Li + from Mg/Li mixtures with Mg 2+ /Li + ratios of 20 was successfully prepared by using polymeric amine polyethyleneimine (PEI) and monomeric amine silane coupling agent (3-diamino-methyl-cyclohexyl triethoxysilane, DTES). Then the effect of DTES on the surface properties and performance of the prepared DTES/PEI/TMC TFN membranes were investigated. Chemical composition analysis revealed that DTES not only hydrolyzed to Si–OH and then self-polymerized to Si–O–Si, but also reacted with the self-carrying acyl chloride of 1,3,5-benzene trichloromethane (TMC). Moreover, SiO 2 nanoparticles were in-situ generated from DTES inside the PA layer with high compatibility. Due to the compatible properties with the positively charged PEI polymer, the reacted DTES was distributed uniformly in the formed TFN selective layer with no noticeable aggregation. The doping of SiO 2 into the polyamide network gave rise to the enlargement of the membrane pore size, enhanced the surface hydrophilicity, and reinforced the surface positive charges. The water flux of the DTES/PEI/TMC membrane improved from 36.9 L m −2 h −1 to 49.58 L m −2 h −1 compared to the PEI/TMC membrane. Additionally, the Mg 2+ and Li + rejection of the optimized membranes was 91.46% and −10.5%, respectively, with permeability and selectivity (S Li, Mg = 12.95) superior to that of the commercial NF membranes. Considering the commercial availability of DTES, this study not only offers a high-performance nanofiltration membrane for recovering lithium from brines but also provides a feasible strategy for industrial separation of other monovalent and divalent ions.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2023
·Vol. 26
·期 4
·557-565
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IF 3.1
Jiaqiang Ding,Bingyu Xiao,Jinqiu Wu,Dongliang Chen,Dongling Huang,Zuochun Xiong
Poly(ε-caprolactone-co-trimethylene carbonate) (PCLTMC) is a biodegradable copolymer, which is widely used for medicine and tissue repair systems, and its morphology, degradation and mechanical properties have been extensively investigated. However, its crystallization behavior with different copolymerization ratios has not been studied systematically, which is of great significance for the study of property regulation and an understanding of the crystallization behavior of random copolymers. In this paper, the relationship between the crystallization temperature Tc, melting point temperature Tm and crystallinity Xc of copolymers with different molar ratios was determined by differential scanning calorimetry (DSC) using a non-isothermal crystallization method. The results show that the melting point and crystallinity of the copolymer decrease with an increase in TMC composition. The equilibrium melting point of the copolymers was predicted by an isothermal crystallization method, using the Hoffman–Weeks extrapolation method and crystallization rate growth fitting method both based on Lauritzen–Hoffman theory. It is proved that Lauritzen–Hoffman theory is of great significance for guiding the kinetic behavior of PCLTMC crystallization.
研究领域:
材料科学
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生物医学工程
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DOI
高影响因子
DESALINATION
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2020
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IF 7.098
Jiayu Tian,Hailin Chang,Shanshan Gao,Ruijun Zhang
The potential toxicity of heavy metals arising from the discharge of industrial wastewater has become a serious public concern. Fabrication of a thin film composite (TFC) NF membrane with desirable rejection of heavy metal ions is an attracting route to solve this problem. Hereon, we proposed a facile strategy for fabricating a TFC NF membrane with excellent heavy metal removal. The ratio of PIP and TMC was greatly enlarged by decreasing the concentration of TMC to an exceptional low extent. Thus a polyamide film with weak electronegativity and small pore size was successfully constructed on an ultrafiltration substrate membrane. Comprehensive characterizations were adopted to reveal the micro-variation of the resulted NF membranes when regulating TMC concentration . The optimized membrane prepared only with PIP and TMC can exhibit a high pure water permeability of 14.6 L m −2 h −1 bar −1 , desirable rejection of over 98% against Ni 2+ , Zn 2+ , Cu 2+ , and >92.7% against Cd 2+ . This performance could go beyond most of the reported candidates which were prepared with other complicated methods. The simplicity, low cost and scaling up feasibility of the current strategy is expected to well meet the requirements of industrial production of TFC NF membrane for heavy metal removal.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Wubin Wang,Jin Wang,Yufei Yan
With the development of industry, the scarcity of lithium resources is becoming increasingly prominent. Therefore, the development of high-performance nanofiltration (NF) membranes for lithium extraction from salt lakes has become crucial. Herein, β-Cyclodextrin (β-CD) and amino-rich graphitic carbon nitride (g-C 3 N 5 ) sol were uniformly mixed to form β-CD@g-C 3 N 5 , which was then mixed with polyetherimide (PEI) monomer and subjected to interfacial polymerization (IP) reaction with trimesoyl chloride (TMC) on a 0.22 μm microfiltration (MF) membrane to prepare the PEI-(β-CD@g-C 3 N 5 )/TMC composite NF membrane. Through thin plate theory and gradient operation pressure filtration tests, it was found that the composite NF membrane prepared on the MF membrane substrate was not only defect-free but also exhibited superior compression resistance. In Li + /Mg 2+ filtration tests, the PEI-(β-CD@g-C 3 N 5 )/TMC membrane showed superior NF performance, with a Li + /Mg 2+ selectivity coefficient of 38.85 and a permeability of 8.91 L·m −2 ·h −1 ·bar −1 . This was attributed to the effect of β-CD@g-C 3 N 5 , which could thin the separation layer, slightly enlarge and more uniformly distribute the pores, increase hydrophilicity, and enhance positive charge; meanwhile, the cavity structure provided by β-CD helped to effectively separate Li + /Mg 2+ . Furthermore, under conditions of mixed salt solutions with different Mg 2+ /Li + mass ratios and 80 h of continuous filtration, the membrane exhibited excellent stability. This work introduces innovative membrane materials and design concepts to the field of lithium extraction via NF, potentially paving the way for the industrial application of NF technology.
研究领域:
材料科学
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环境工程
·
化学工程
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Chao Wang,Yujia Lu,Peijuan Chu,Tengfei He,Lijia Liu,Chunhong Zhang
Thin film composite (TFC) membranes with advanced antibacterial and separation performance are essential for practical application. Adding additional antibacterial agents is always needed to improve the antibacterial ability of TFC membrane, and it may decline the separation performance of this membrane. Herein, naringin (NG), as a green and renewable flavonoid molecule, possesses bacteriostatic and abundant reactive hydroxyl groups. Thus, a novel TFC [NG/trimesoyl chloride (TMC)] membrane with intrinsically antibacterial ability was constructed using NG as the aqueous phase molecule via facile interfacial polymerization with TMC. The NG/TMC membrane demonstrated low roughness and high negative charge surface, and the retention rates to Evan’s blue, Congo red, Sunset yellow, and methyl orange were all above 99.0%. Meanwhile, the NG/TMC membrane exhibited an outstanding antibacterial ability, the antibacterial rate to E. coli and S. aureus can reach 99.36% and 98.39%, respectively. This kind of novel NG/TMC membrane with inherent antibacterial ability has significant advantages in practical applications.
研究领域:
材料科学
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环境工程
·
生物技术
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2017
·
IF 6.035
Ruijun Zhang,Shuili Yu,Wenxin Shi,Wei Wang,Xiaoying Wang,Zhiqiang Zhang,Li Li,Bing Zhang,Xian Bao
In order to integrate the advantages of polyamide thin film composite (TFC) nanofiltration (NF) membranes and that of polyester TFC NF membranes, a novel polyesteramide (PEA) TFC NF membrane was prepared by interfacial polymerization between serinol and trimesoyl chloride (TMC) and catalyzed by 4-dimethylaminopyridine (DMAP) on a flat-sheet polyethersulfone (PES) substrate membrane. The membrane performance was maximized by optimizing different preparation parameters. The reaction process was divided into four basic patterns. X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy confirmed the membrane had a partially cross-linked active layer that contained ester bonds, amide bonds and residual hydroxyl groups. Morphology analysis showed the surface of the PEA-TFC-NF membrane was grainy, which was different from the typical polyamide membranes. The contact angle and zeta potential measurements confirmed the PEA-TFC-NF membrane was highly hydrophilic and negatively charged across the entire pH range tested. The optimized PEA-TFC-NF membrane had a MWCO of 474 Da and water permeability of 6.0 L m −2 h −1 bar −1 at 0.5 MPa and 25 °C. The membrane salt rejections followed the order of Na 2 SO 4 > MgSO 4 > NaCl > MgCl 2 , which were 96.27%, 83.92%, 58.68% and 28.76%, respectively. Moreover, the PEA-TFC-NF membrane displayed good antifouling ability.
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）