Sustainable Chemistry and Pharmacy
·
2025
·
IF 5.8
Qianwei Li,Bowen Deng,Ru Feng,Di Chen,Linlin Hua
Extracting antidepressants from biological samples is challenging due to their low concentrations and complex matrices. Pipette-tip solid-phase microextraction (PT-μSPE) simplifies the process, reducing solvent use and enabling automation, but challenges like custom adsorbents and toxic solvents limit its broader application. Melt-blown polypropylene nonwoven, sourced from the middle layer of 3-ply disposable non-woven face masks, was employed as the sorbent material. The extraction tip was easily assembled by combining a 200 μL pipette tip, the melt-blown polypropylene nonwoven, and a 1 mL pipette tip. This method provides a cost-effective and sustainable alternative to conventional adsorbents. A 90% ethanol solution was selected as the desorption solvent to comply with green chemistry principles, with the volume minimized to 100 μL to reduce waste. The pH adjustment was achieved using low-toxicity sodium carbonate (Na₂CO₃). The developed PT-μSPE method proved excellent linearity, sensitivity, accuracy, precision, and robustness, making it suitable for routine antidepressant monitoring in plasma and urine. It offers a practical, scalable, and environmentally friendly solution for therapeutic drug monitoring.
研究领域:
分析化学
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药物分析
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产品关联
DOI
高影响因子
Journal of Industrial Textiles
·
2018
·
IF 1.283
Feichao Zhu,Juanjuan Su,Mingjun Wang,Munir Hussain,Bin Yu,Jian Han
With increasing demands on the high-performance and environmental-friendly melt-blown nonwovens (MBs) for separation and filtration, herein, we reported a poly(lactic acid)/polyamide 11 (PLA/PA11) 100% bio-based MBs in situ compatibilized by dual-monomer glycidyl methacrylate–styrene melt-grafted poly(lactic acid) (PLA-g-(St-co-GMA)). The morphology, crystallization, thermal and rheological behaviors of reactive extruded PLA/PA11/PLA-g-(St-co-GMA) melt blends were investigated, and the structure and filtration performance of corresponding MBs were fully characterized. The results indicated that the interface between PLA and PA11 were effectively improved due to the compatibilizer of PLA-g-(St-co-GMA). PA11 promoted the cold crystallization and enhanced the thermal stability of PLA matrix. The reactive blends displayed a higher viscosity with unchanged rheological behaviors compared with PLA. In comparison with PLA MBs, the average fiber diameter and pore size of PLA/PA11/PLA-g-(St-co-GMA) MBs were slightly increased, whereas the strength and toughness were significantly improved. All the PLA/PA11/PLA-g-(St-co-GMA) MBs presented high air permeability and low filtration resistance. High filtration efficiency (>99.8%) could also be obtained especially for the target particles with diameters larger than 2.5 µm.
研究领域:
材料科学
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环境科学
·
高分子化学
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产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 10
·2252
·
IF 5
Ning Yu,Hui Jiang,Zhengwei Luo,Wenhua Geng,Jianliang Zhu
Boron is in high demand in many sectors, yet there are significant flaws in current boron resource utilization. This study describes the synthesis of a boron adsorbent based on polypropylene (PP) melt-blown fiber using ultraviolet (UV)-induced grafting of Glycidyl methacrylate (GMA) onto PP melt-blown fiber, followed by an epoxy ring-opening reaction withN-methyl-D-glucosamine (NMDG). Using single-factor studies, grafting conditions such as the GMA concentration, benzophenone dose, and grafting duration were optimized. Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), X-ray diffraction (XRD), and water contact angle were used to characterize the produced adsorbent (PP-g-GMA-NMDG). The PP-g-GMA-NMDG adsorption process was examined by fitting the data with different adsorption settings and models. The results demonstrated that the adsorption process was compatible with the pseudo-second-order model and the Langmuir model; however, the internal diffusion model suggested that the process was impacted by both extra- and intra-membrane diffusion. According to thermodynamic simulations, the adsorption process was exothermic. At pH 6, the greatest saturation adsorption capacity to boron was 41.65 mg·g−1for PP-g-GMA-NMDG. The PP-g-GMA-NMDG preparation process is a feasible and environmentally friendly route, and the prepared PP-g-GMA-NMDG has the advantages of high adsorption capacity, outstanding selectivity, good reproducibility, and easy recovery when compared to similar adsorbents, indicating that the reported adsorbent is promising for boron separation from water.Keywords:ultraviolet grafting;PP melt-blown fiber;boron;adsorption;mechanism
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Polymers
·
2019
·Vol. 11
·期 5
·775
·
IF 3.164
Fei Sun,Ting-Ting Li,Haitao Ren,Qian Jiang,Hao-Kai Peng,Qi Lin,Ching-Wen Lou,Jia-Horng Lin
This study aims to produce polypropylene (PP)/titanium dioxide (TiO2) melt-blown membranes for oil/water separation and photocatalysis. PP and different contents of TiO2are melt-blended to prepare master batches using a single screw extruder. The master batches are then fabricated into PP/TiO2melt-blown membranes. The thermal properties of the master batches are analyzed using differential scanning calorimetry and thermogravimetric analysis, and their particle dispersion and melt-blown membrane morphology are evaluated by scanning electron microscopy. TiO2loaded on melt-blown membranes is confirmed by X-ray diffraction (XRD). The oil/water separation ability of the melt-blown membranes is evaluated to examine the influence of TiO2content. Results show that the thermal stability and photocatalytic effect of the membranes increase with TiO2content. TiO2shows a good dispersion in the PP membranes. After 3 wt.% TiO2addition, crystallinity increases by 6.4%, thermal decomposition temperature increases by 25 °C compared with pure PP membranes. The resultant PP/TiO2melt-blown membrane has a good morphology, and better hydrophobicity even in acetone solution or 6 h ultraviolet irradiation, and a high oil flux of about 15,000 L·m−2·h−1. Moreover, the membranes have stabilized oil/water separation efficiency after being repeatedly used. The proposed melt-blown membranes are suitable for mass production for separating oil from water in massively industrial dyeing wastewater.Keywords:polypropylene;membranes;melt-blowing process;oil/water separation;photocatalysis
研究领域:
材料科学
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环境工程
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化学工程
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产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Yifei Li,Mingjing Chen,Yazhou Su,Lin Meng,Zhimin Li,Xiaoxia Sun,Xinhou Wang
Air pollution remains a pressing global challenge, necessitating the urgent development of advanced air filtration and protection technologies. Although personal protective masks have addressed the concerns to some extent, designing those that combine high filtration efficiency with low pressure drop and enhanced wearing comfort are still desirable. To remove this hurdle, we here harness a direct freeze-drying strategy to enable in-situ grown polyethylene oxide (PEO) nanofibrous structures (ranging from 10 nm to several hundred nanometers) into polypropylene (PP) melt-blown (MB) nonwovens (1–10 μm). Compared to the original PP MB nonwovens, the PEO nanofiber-decorated counterparts demonstrate a remarkable improvement in filtration efficiency, increasing from 30 % to 99.8 %, alongside an approximately two-fold enhancement in the quality factor. Furthermore, the addition of the PEO nanofibrous structure significantly enhanced the thermal conductivity of the material, enabling superior heat dissipation. Notably, the minimum air permeability of the PEO/PP-nano/microfibrious nonwovens (PEO/PP-NMNs) remained as high as 340 mm/s, even after incorporation of the nanofiber network. These findings underscore the potential of PEO/PP-NMNs as promising materials for next-generation personal protective equipment.
研究领域:
材料科学
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环境科学
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生物医学工程
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产品关联
DOI
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 10
·2025
·
IF 4.324
Ting-Ting Li,Yujia Fan,Xixi Cen,Yi Wang,Bing-Chiuan Shiu,Hai-Tao Ren,Hao-Kai Peng,Qian Jiang,Ching-Wen Lou,Jia-Horng Lin
Particulate matter 2.5 (PM2.5) has become a public hazard to people’s lives and health. Traditional melt-blown membranes cannot filter dangerous particles due to their limited diameter, and ultra-fine electrospinning fibers are vulnerable to external forces. Therefore, creating highly efficient air filters by using an innovative technique and structure has become necessary. In this study, a combination of polypropylene (PP) melt-blown and polyvinyl alcohol (PVA)/zeolite imidazole frameworks-8 (ZIF-8) electrospinning technique is employed to construct a PP/PVA/ZIF-8 membrane with a hierarchical fibrous structure. The synergistic effect of hierarchical fibrous structure and ZIF-8 effectively captures PM2.5. The PP/PVA composite membrane loaded with 2.5% loading ZIF-8 has an average filtration efficacy reaching as high as 96.5% for PM2.5and quality factor (Qf) of 0.099 Pa−1. The resultant membrane resists 33.34 N tensile strength and has a low pressure drop, excellent filtration efficiency, and mechanical strength. This work presents a facile preparation method that is suitable for mass production and the application of membranes to be used as air filters for highly efficient filtration of PM2.5.Keywords:PM2.5;zeolite imidazole framework-8 (ZIF-8), melt-blown;electrospinning
研究领域:
材料科学
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环境科学
·
空气过滤技术
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产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Bohao Qi,Xin Hu,Suwan Cui,Hao Liu,Yang Li,Yiming Li,Jinren Lu,Mutai Bao
In response to the defects of low oil adsorption capacity and poor oil–water selectivity of polypropylene fiber felt as an oil spill emergency material, which necessitates systematic improvement to cope with frequent oil spills. Herein, a superhydrophobic magnetic fiber felt is fabricated by a facile melt-blown technique and a rapid modification process to solve its defects while imparting its functionality. UV-induced rapid polymerization of dopamine on melt-blown fibers and a dip coating of hydrophobic candelilla wax to modify mussel-inspired oil-adsorbent felts. The resultant felt features remote controllability as well as thermal and mechanical stability, exhibiting high resistance to corrosive solutions. The adsorption efficiency of the modified felt is significantly enhanced with a capacity of 10–20.48 g/g, and notably, it can be recycled 15 times via manual adsorption–desorption, which greatly contributes to the usefulness of the adsorbent. In addition, the separation efficiency of the felt applied as a membrane exceeds 95.7 % for various oil–water mixtures by gravity alone and a permeate flux of up to 28,662 L·m −2 ·h −1 . A pump-assisted experiment connected to a felt can collect oil at a flux of 20,845 L·m −2 ·h −1 , aiming at the continuous recovery of oil spills from seawater. The significant advancement in oil-adsorbent felt provides engineers with a more realistic strategy to handle oil spills and challenging separations.
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
Polymers
·
2022
·Vol. 14
·期 14
·2952
·
IF 4.967
Ming-Chao Han,Shun-Zhong Cai,Ji Wang,Hong-Wei He
Meltblown (MB) nonwovens as air filter materials have played an important role in protecting people from microbe infection in the COVID-19 pandemic. As the pandemic enters the third year in this current global event, it becomes more and more beneficial to develop more functional MB nonwovens with special surface selectivity as well as antibacterial activities. In this article, an antibacterial polypropylene MB nonwoven doped with nano silicon nitride (Si3N4), one of ceramic materials, was developed. With the introduction of Si3N4, both the average diameter of the fibers and the pore diameter and porosity of the nonwovens can be tailored. Moreover, the nonwovens having a single-side moisture transportation, which would be more comfortable in use for respirators or masks, was designed by imparting a hydrophobicity gradient through the single-side superhydrophobic finishing of reactive organic/inorganic silicon coprecipitation in situ. After a nano/micro structural SiO2precipitation on one side of the fabric surfaces, the contact angles were up to 161.7° from 141.0° originally. The nonwovens were evaluated on antibacterial activity, the result of which indicated that they had a high antibacterial activity when the dosage of Si3N4was 0.6 wt%. The bacteriostatic rate againstE. coliandS. aureuswas up to over 96%. Due to the nontoxicity and excellent antibacterial activity of Si3N4, this MB nonwovens are promising as a high-efficiency air filter material, particularly during the pandemic.Keywords:PP meltblown nonwoven;silicon nitrile (Si3N4);filtration;antibacterial materials;superhydrophobicity
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2022
·Vol. 29
·期 7
·1-8
·
IF 3.061
Liu Yuhao,Wang Jieqi,Chen Liping,He Yong
In order to enhance the adsorption and photocatalytic property of polyphenylene sulfide (PPS) melt-blown film, PPS melt-blown film was modified by loading ZIF-8 nanomaterial on the surface of the film via a simple solvothermal water method, the PPS melt-blown film was impregnated in advance. Film performance was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM), X-ray diffraction (XRD). Results from FTIR and XRD showed that ZIF-8 was introduced into the modified PPS film successfully. The modified PPS film was endowed with excellent adsorption and photocatalytic compared with the original PPS by the result of enhanced dye removal. The removal rate of methyl blue (MB) by PPS/ZIF-8 film within the range of pH = 3–11 of the environmental solution were more than 80%, up to 99.1%. The dye removal rate still remained 80% after 5 repeat cycles, showed that the modified film has good stability.
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
POLYMER INTERNATIONAL
·
2022
·Vol. 71
·期 11
·1257-1266
·
IF 3.213
Yujia Fan,Ting-Ting Li,Wankai Ge,ChingWen Lou,Jia-Horng Lin
A two-step strategy is used to produce micro–nano composite filters that are flexible and exhibit charge recovery. Polytetrafluoroethylene (PTFE) electret powders are incorporated during the process to provide melt-blown micro–nano membranes with good charge recovery and improved fiber fineness. Then the advantages of the nanofiber membrane are utilized to load the PTFE suspension onto the surface of melt-blown microfiber membranes to construct a composite filtration membrane with a micro–nano structure, to achieve high-efficiency and gradient filtration. The test results indicate that the gradient filtration composite membranes exhibit 100% filtration efficiency against 2.5 μm particles, 94.96% filtration efficiency against 0.200–2.5 μm particles and 95.39% filtration efficiency against 0.200–4.595 μm particles, which is 232.02% higher than that of polypropylene membranes. In addition, the gradient filtration composite membranes have a pressure drop that is only 86 Pa and a quality factor of 0.0358 Pa −1 . Featuring excellent electret property and charge recovery rate, the gradient filtration micro–nano composite membranes are outstanding filters that have high filtration efficiency, low pressure drop, stable surface potential and excellent thermal stability. © 2022 Society of Industrial Chemistry.
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Yujing Zhang,Jinxing Wang,Shengchao Yuan,Munir Hussain,Xiangyu Ye,Yan Fang,Bin Yu,Feichao Zhu
Polylactic acid (PLA) meltblown nonwovens are highly desirable alternatives to existing polypropylene air filtration materials, owing to their durability throughout their operational lifespan and biodegradable nature upon disposal. However, the practical utilization of PLA meltblown nonwovens remains challenged by the dual objectives of enhancing filtration performance and maintaining long-term stable charge storage. Herein, we implemented a commercially viable solution process for liquid electret charging, aiming to enhance the filtration efficiency (>95%) and charge stability (>1 year) of PLA meltblown nonwovens. In this process, the space charge is transferred from the liquid electret to the surface of PLA meltblown nonwovens to be polarized, and then the stable charges inside PLA fibers are formed by aging process. The resulting liquid electret charging PLA meltblown nonwovens showed an enhanced salt filtration efficiency of 99.5% and an oil filtration efficiency of 96.1%. The charge density and thermally stimulated discharge (TSD) measurements indicate that PLA meltblown nonwovens exhibit stable and abundant charge-carrying capabilities. A plausible charge generation and storage mechanism has been proposed. Moreover, evaluating the durability of these nonwovens is crucial for broadening their applications and addressing environmental and energy challenges.
研究领域:
材料科学
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环境科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2024
·
IF 4.1
Xiaodong Yang,Hui Sun,Tian Gao,Yining Sun,Jing Li,Sailing Lei,Bin Yu
The removal of oil from water surfaces is crucial for protecting the environment and living organisms from the hazards posed by industrial oily wastewater and offshore oil spills. However, achieving enhanced mechanical robustness, corrosion resistance, and durability in oil-water separation membranes presents a significant challenge. In this study, poly(ethylene chlorotrifluoroethylene) (ECTFE) resin, a novel semicrystalline polymer material composed of alternating ethylene and chlorotrifluoroethylene molecules, was fabricated into melt-blown fabric (MB) by melt-blowing technology. By optimizing the side wind temperature, collector distance, roller speed, and hot air pressure, ECTFE MB with superior mechanical properties was established. Additionally, the obtained ECTFE MB exhibited excellent hydrophobicity with a water contact angle reaching 127.8°. The separation efficiency for various oil-water mixtures (oil phase including carbon tetrachloride, petroleum ether, dichloromethane, n-hexane, and isooctane) exceeded 99 %. Furthermore, after 90 cycles of oil-water separation, ECTFE MB maintained high flux (72183.16 L m −2 h −1 ) and separation efficiency of 99.40 % when carbon tetrachloride was used as oil phase. Notably, ECTFE MB demonstrated exceptional resistance to harsh environments, including strong acids, bases, and mild high temperature. The investigation of failure modes of ECTFE MB revealed that the primary failure mode of ECTFE MB was the disruption of the oil-water interface. The maximum water height that the ECTFE MB could withstand was 1376 mm. Consequently, ECTFE MB exhibit excellent mechanical properties, chemical stability, and cycling stability, indicating the potential application in the field of oil-water separation.
研究领域:
材料科学
·
环境科学
✓ 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）