RSC Advances
·
2025
·Vol. 15
·期 11
·8111-8120
·
IF 4.6
Hao Zhang,Weihao Ma,Chunyu Qiang,Jiayuan Nie,Ling Ma,Yawei Zhang,Ke Wang
In our research, an emerging magnetic covalent organic framework (Fe3O4@SiO2–BD–DADB-COF) was formulated through Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), etc. Several parameters affecting the extraction process were refined. Accordingly, a novel method of determining 15 macrolides (MALs) in honey and water was established through the Fe3O4@SiO2–BD–DADB-COF as a magnetic solid-phase extraction (MSPE) adsorbent and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). In consequence, the standard curves for the 15 MALs exhibited an exceptional linearity from 0.1 to 200 μg L−1, and the correlation coefficients (R2) varied from 0.9990 to 0.9999. The recoveries fell between 70.01% and 115.56%, with the relative standard deviations (RSDs) being below 9.93% (n = 5). The detection limits reached 0.001–0.075 μg L−1 with the quantification limits being 0.004–0.228 μg L−1. Ultimately, the method was excellently applied to the analysis of MALs in honey and water.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jingjing Jiang,Shijian Zhou,Jing Ding,Jinhe Sun
3.25 mg g −1 capacity at ultrahigh Mg 2+ /Li + ratio of 474.6 and excellent cycling use. • AlLi-LDHs were confined in SBA-15 pores via solvent evaporation-induced strategy. • Si-O-Al/Li interface increases electron density, boosting electrostatic adsorption. • Hydration-shell sieving effect excludes Mg 2+ , Na + , K + for selective Li + adsorption. The sustainable extraction of lithium from salt lake brines featuring high Mg 2+ /Li + ratios poses a severe technical bottleneck that limits the high-efficiency utilization of global lithium resources. Herein, a novel pore-confined AlLi-LDHs/SBA-15 adsorbent (SEI-AL/SBA-15-B) is rationally constructed via a solvent evaporation-induced method to break this limitation, which directs the exclusive and uniform growth of AlLi-LDH nanosheets inside the ordered mesochannels of SBA-15 rather than on the external surface. This architecture delivers three synergistic effects: (i) physical confinement suppresses nanosheet agglomeration, maximizing accessible active sites; (ii) interfacial Si-O-Al/Li covalent bonds reconstruct the local electronic structure, lowering the DFT-calculated adsorption energy of Li + (H 2 O) 4 from −1.61 eV (pristine AlLi-LDHs) to −3.06 eV; and (iii) a hydration-shell sieving effect, governed by the interplay of geometric radius and dehydration energy, efficiently excludes competing Mg 2+ , Na + and K + . The optimized adsorbent achieves a Li + uptake of 10.52 mg g −1 within 1 h in 800 mg/L LiCl solution (equilibrium capacity 12.11 mg g −1 at 4 h). Impressively, a capacity of 3.25 mg g −1 is preserved at an ultrahigh Mg 2+ /Li + mass ratio (474.6), which surpasses most reported AlLi-LDHs adsorbents. Normalization to the active LDH mass shows that SEI-AL/SBA-15-B exhibits a 2.85-fold higher capacity than pristine AlLi-LDHs, proving that the enhanced performance originates from improved active-site utilization rather than higher LDH loading. The adsorbent also demonstrates excellent stability over eight adsorption–desorption cycles. This work establishes mesopore confinement engineering as a powerful platform to overcome the inherent limitations of layered double hydroxide adsorbents, enabling sustainable lithium extraction from high Mg 2+ /Li + ratio salt lake brines. AlLi-LDHs were confined within SBA-15 mesopores by solvent evaporation-induced method to form SEI-AL/SBA-15 composite adsorbent. The mesoporous confinement effect suppresses the agglomeration of AlLi-LDHs, reconstructs the Si-O-Al/Li interfacial electronic structure to enhance electrostatic adsorption and coordination bonding capability, and reinforces size sieving by blocking large-sized competing hydrated ions. These synergistic effects enable SEI-AL/SBA-15-B high lithium adsorption capacity and ultrahigh selectivity in brine. Download: Download high-res image (140KB) Download: Download full-size image
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Catalysts
·
2026
·Vol. 16
·期 2
·130
·
IF 4
Shanshan Duan,Zhonghua Lu,Yongkang Lv
The dry reforming of methane (DRM) is a kind of technology used for achieving resource utilization. In this paper, different Ni/SBA-15 catalysts were prepared by adjusting the pH of the impregnation solution and applying it during the DRM reaction. The relationship between the structure and catalytic performance of the catalyst was analyzed by characterization methods such as BET, XRD, H2-TPR, H2-TPD, XPS, TG, and Raman. The research results indicated that the dispersion of the catalyst’s active components could be regulated by changing the pH value of the impregnation solution. Among them, the Ni/SBA-15-2 catalyst exhibits good metal dispersion, and significantly enhances the activity of the catalyst. In addition, it also has strong CO2adsorption capacity, which improves the stability of the catalyst. At 700 °C, the conversions of CH4and CO2of the catalyst are 51% and 60%, respectively.
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CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Honglei Zhang,Fengyu Tian,Lingyun Xu,Ruichao Peng,Yingjie Li,Jie Deng
Biodiesel, a mixture of fatty acids alkyl esters (FAAE), has recently received great concern as an excellent alternative to the petro-based diesel fuel. However, the production of biodiesel at commercial scale is obstructed by both cost of feedstock and the homogeneous catalyst system. To overcome these challenges, Amberlyst-15/Poly (vinyl alcohol) membrane (A-15/PVA) with catalytic and water-adsorbing dual functions have been prepared by a simple phase inversion method. The as-prepared A-15/PVA exhibited excellent catalytic activity and reusability in both batch and continuous esterification of acidified oil from waste cooking oil (WCO) with methanol for biodiesel production. The produced biodiesel exhibited high qualified properties and stability and can be directly applied in current diesel engines without modifying the engines. The exhaust of the biodiesel and biodiesel-blend could decrease the smoke opacity, carbon monoxide, hydrocarbon, while increase the nitrogen oxide emissions. The A-15/PVA demonstrated great potential in industrial production of biodiesel with high qualities from WCO.
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PLoS One
·
2022
·Vol. 17
·期 8
·e0271408
·
IF 3.752
Daihua Hu,Tingting Gao,Xingang Kong,Na Ma,Jinhong Fu,Lina Meng,Xiaolong Duan,Ching Yuan Hu,Wang Chen,Zili Feng,Salman Latif
The green synthesis of silver nanoparticles (AgNPs) using a water extract of Ginger (Zingiber officinale) root by microwave irradiation and its antibacterial activities have been reported. However, AgNPs prepared from different parts of ginger root water or ethanol extract by ultrasound synthesis and their antioxidant activity and whether the biogenic could be used to catalyze the reduction of hazardous dye are unknown. This study concentrated on the facile green synthesis of AgNPs prepared from different parts (unpeeled ginger, peeled ginger, and ginger peel) of ginger root water or ethanol extract by the ultrasound-assisted method. We studied their antioxidant activity and catalytic degradation of hazardous dye Direct Orange 26 (DO26) and Direct Blue 15 (DB15). The surface plasmon resonance (SPR) peak of AgNPs was at 428–443 nm. The biogenic AgNPs were approximately 2 nm in size with a regular spherical shape identified from TEM analysis. The ethanol extracts of dried unpeeled ginger and peeled ginger, fresh peeled ginger and ginger peel. The Z . officinale AgNPs synthesized by dried unpeeled ginger ethanol extract showed the best antioxidant activity. Their scavenging activities were significantly better than BHT ( p <0.05). The different parts of ginger extracts showed no catalytic degradation activities of DB15 and DO26. Still, the synthesized Z . officinale AgNPs exhibited good catalytic degradation activities, while their ability to catalytic degradation to DB15 was better than DO26. In the additive ratio of 3 mL DB15, 0.1 mL NaBH 4 and 0.1 mL AgNPs, the degradation rates of DB15 (or DO26) at 15 min, 30 min and 60 min were only 1.8% (0.9%), 2.8% (1.4%) and 3.5% (1.6%) in the absence of AgNPs. When adding Z . officinale AgNPs prepared from dried ginger peel ethanol extract or fresh ginger peel water extract, the degradation rates of DB15 sharply increased to 97% and 93% after 30 min, respectively. In conclusion, ginger extract has good antioxidant properties. Z . officinale AgNPs biosynthesis from ginger extract exhibit excellent catalytic degradation activities, especially for the ginger peel extract. They have application value in the treatment of textile effluents and provide a new idea and method for the comprehensive development and utilization of ginger resources.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2025
·
IF 0
Maqinana Siphosethu,Kowenje Chrispin B. O.,Ojwach Stephen O.
Reactions of N 1 ,N 3 -bis(2-mercaptoethyl)isophthalamide with (3-aminopropyl)triethoxysilane (3-APTES) afforded the the corresponding Schiff base chelating ligand, (1Z,3Z)-N 1 ,N 3 -bis(2-mercaptoethyl)-N' 1 ,N' 3 bis(3(triethoxysilyl)propyl) isophthalimidamide ( L1 ) in high yields. Subsequent immobilization of L1 on mesoporous silica supports (SBA-15 and MCM-41) following a divergent method produced the respective fabricated L1@SBA-15 and L1@MCM-41 materials. Characterization of the fabricated chelating agents was accomplished using SEM, TEM, EDX, BET, PXRD, FT-IR, and TGA-DTA/DSC techniques. The fabricated materials were used as adsorbents for the removal of Cd(II), Pb(II) and Cr(VI) metal ions from water. Both the L1@SBA-15 and L1@MCM-41 materials demonstrated high extraction efficiencies for Cd(II) and Pb(II) cations, achieving over 98% and 97% removal, respectively, across a broad pH range (3–9). For Cr(VI) anions, relatively lower optimal extraction efficiencies of 67% and 77% were recorded between pH 3–12, for L1@SBA-15 and L1@MCM-41 , adsorbents, respectively. Faster extraction kinetics were observed for Cd(II) and Pb(II) cations, with over 94% removal achieved within 30 min, even at low initial metal concentrations (5 ppm) and adsorbent dosages (10 mg). Kinetic modelling showed that the adsorption process followed a pseudo -second-order kinetics, with high correlation coefficients (R 2 ) for Cd(II), Pb(II), and Cr(VI) of 0.97573, 0.97348, and 0.91017 using L1@MCM-41 , and 0.9754, 0.97089, and 0.89411 using L1@SBA-15 , respectively. Equilibrium data best fitted the Freundlich isotherm model, with R 2 values of 0.97952, 0.99892, and 0.97374 for L1@SBA-15 and 0.99879, 0.99999, and 0.90923 for L1@MCM-41 , corresponding to Cd(II), Pb(II), and Cr(VI), respectively. In competitive metal ion systems, the extraction selectivity followed the order Cd(II) > Pb(II) > Cr(VI), with L1@SBA-15 exhibiting superior overall performance compared to L1@MCM-41 . The extraction mechanism was postulated to occur through the coordination of the metal ions to the nitrogen/sulfur donor atoms in the chelating agents, consistent with the hard and soft acid and base (HSAB) principle. Furthermore, L1@MCM-41 demonstrated notable regeneration potential, retaining Cr(VI) extraction efficiencies over four successive cycles. Graphical
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MICROCHIMICA ACTA
·
2021
·Vol. 188
·期 5
·1-11
·
IF 5.833
He Yanlei,Li Ning,Liu Xiangwei,Chen Wei,Zhu Xixi,Liu Qingyun
Urchin-like peroxidase mimics 5,10,15,20-tetrakis (4-carboxyl phenyl) porphyrin–functionalized CuCo 2 O 4 nanospheres (Por-CuCo 2 O 4 ) has been fabricated as an excellent visual biosensor. X-ray diffractometry (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) have been employed to characterize the composition, morphologies, and elemental analysis of the as-synthesized Por-CuCo 2 O 4 . The catalytic activity of Por-CuCo 2 O 4 was evaluated by the chromogenic substrate 3,3′,5,5′-tetramethylbenzidine (TMB) with the aid of H 2 O 2 , which exhibited a visual blue change with an absorption maximum at 652 nm for only 10 s. The peroxidase-like behaviors of Por-CuCo 2 O 4 conformed to the Michaelis-Menten equation. Electrochemistry, radical scavenger, and fluorescence probe experiments verified that electron transfer, •O 2 − radicals, and holes (h + ) are the important factors during the catalytic oxidation of TMB. Based on the inhibition of dopamine (DA) on TMB oxidation, the Por-CuCo 2 O 4 -based colorimetric biosensor has been successfully constructed for sensitive determination of DA witha detection limit (LOD) of 0.94 μΜ. In addition, colorimetry was validated to detect DA in serum samples with high sensitivity and good selectivity. Graphical abstract
5,10,15,20-tetrakis (4-carboxyl phenyl) porphyrin–functionalized urchin-like CuCo 2 O 4 (Por-CuCo 2 O 4 ) with excellent peroxidase activity, ascribed to the synergistic effect between •O 2 − radicals and holes (h + ). A fast colorimetric sensor on the basis of Por-CuCo 2 O 4 has been constructed to quantitatively determine dopamine concentration in human serums.
研究领域:
纳米技术
·
生物传感器
·
分析化学
·
材料科学
·
生物化学
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Sustainable Chemistry and Pharmacy
·
2023
·
IF 6
Jiahuan Xu,Lijin Peng,Jianbo Chu,Jing Shi,Qinmin Cui,Qiyuan Shi
This work aims to resolve the environmental pollution caused by petroleum ether in the production of pure nuciferine from lotus leaf by applying bio-based solvent (D-limonene) and green solvent (ethyl acetate). Some obvious advantages were observed, over 97% of nuciferine could be extracted by vortex assisted two-phase solvent extraction based on multi-stage strategy (MS-VTSE), over 90% of nuciferine could be recovered by solid phase extraction (SPE), and over 97% of nuciferine could be obtained by pH-dependent liquid-liquid extraction (pH-LLE). It follows that the newly developed method can not only avoid the use of petroleum ether, but also increase the yield of the whole process by 14% (57%) in comparing with the result of the original one (50%) reported in our previous study. As D-limonene could by recycled conveniently, solvents replacement has little effect on the cost of production. In a word, the newly proposed method has advantages in environmental protection and solvent saving, thus, is fitting for the green and low-cost production of pure nuciferine from lotus leaf.
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JOURNAL OF GENERAL VIROLOGY
·
2024
·Vol. 105
·期 5
·001996
·
IF 3.6
Yuting Duan,Haichuan Li,Shuai Huang,Yaoming Li,Shuyi Chen,Lilan Xie
Transmissible gastroenteritis virus (TGEV), an enteropathogenic coronavirus, has caused huge economic losses to the pig industry, with 100% mortality in piglets aged 2 weeks and intestinal injury in pigs of other ages. However, there is still a shortage of safe and effective anti-TGEV drugs in clinics. In this study, phloretin, a naturally occurring dihydrochalcone glycoside, was identified as a potent antagonist of TGEV. Specifically, we found phloretin effectively inhibited TGEV proliferation in PK-15 cells, dose-dependently reducing the expression of TGEV N protein, mRNA, and virus titer. The anti-TGEV activity of phloretin was furthermore refined to target the internalization and replication stages. Moreover, we also found that phloretin could decrease the expression levels of proinflammatory cytokines induced by TGEV infection. In addition, we expanded the potential key targets associated with the anti-TGEV effect of phloretin to AR, CDK2, INS, ESR1, ESR2, EGFR, PGR, PPARG, PRKACA, and MAPK14 with the help of network pharmacology and molecular docking techniques. Furthermore, resistant viruses have been selected by culturing TGEV with increasing concentrations of phloretin. Resistance mutations were reproducibly mapped to the residue (S242) of main protease (Mpro). Molecular docking analysis showed that the mutation (S242F) significantly disrupted phloretin binding to Mpro, suggesting Mpromight be a potent target of phloretin. In summary, our findings indicate that phloretin is a promising drug candidate for combating TGEV, which may be helpful for developing pharmacotherapies for TGEV and other coronavirus infections.
研究领域:
病毒学
·
药理学
·
分子生物学
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高影响因子
LANGMUIR
·
2024
·
IF 3.7
Jiawei Liu,Guo Du,Tiehong Chen
Ordered mesoporous silica is widely used in catalysis, adsorption, and biomedicine, among which SBA-15 (Santa Barbara Amorphous-15) is one of the most widely studied. However, the synthesis of SBA-15 often requires strong acid (hydrochloric acid or sulfuric acid), which will not only corrode industrial equipment but also pollute the environment with the wastewater containing strong acid and halogen (sulfur). Here, we demonstrate a green synthetic strategy for SBA-15 under weakly acidic conditions through an anionic assembly route. With the assistance of poly(acrylic acid) (PAA) and 3-aminopropyltrimethoxysilane (APMS), the pH value of the synthesis system can be increased to 4–5, which is a mild near-neutral condition. In addition, halogen-free synthesis using organic acids is also achieved. The powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and N2 sorption characterizations show that the obtained SBA-15 has good texture properties, with a specific surface area of 430–500 m2/g and ordered 6–8 nm mesopores, which is similar to SBA-15 synthesized in traditional strong acid. This strategy provides a facile and environmentally friendly route for the large-scale production of ordered mesoporous materials.
研究领域:
材料科学
·
化学
·
环境科学
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高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Xueting Yang,Dezhan Ye,Chenyi Wang,Yazhou Chen,Xiancai Jiang,Yingcheng Yang,Zengjin Liu
The emerging approach of in-situ polymerization of solid polymer electrolytes based on 1,3-dioxolane (DOL) possesses the advantage of low interfacial impedance and relatively high Coulombic efficiency. However, the DOL monomer conversion (C%) under Lewis acid catalysts needs to be further improved, besides their alloying ability with lithium metal to generate protective interfacial layer has been ignored. Here, the above two aims are simultaneously achieved by Indium Trifluoride (InF 3 ) catalyst. It is demonstrated that the highest C% is up to 94% with 15 mg of InF 3 in the 1 mL electrolyte (1 M LiTFSI/DOL). The optimized ionic conductivity and lithium-ion transfer number are 8.9 × 10 −5 S/cm (30 °C) and 0.42, respectively. The stable interface between poly-DOL and lithium metal anode could be proved by the stable over-potential (156mv, 900 h) at current density of 2.0 mA cm −2 . X-ray diffraction results confirm the presence of In and In–Li alloy peaks. After 300 cycles at 1C, the assembled Li/PDI 15 /LiFePO 4 cells deliver a 125.2mAh/g, 90% capacity retention and Coulombic efficiency of 99.75%, respectively. This innovative and facile strategy of dual functional InF 3 on the in-situ polymerization of DOL and solid electrolyte interphase formation provides new ideas for design poly-DOL based solid polymer electrolytes.
研究领域:
材料科学
·
电化学
·
能源存储
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Food & Function
·
2021
·Vol. 12
·期 14
·6452-6463
·
IF 5.396
Li Meng,Yuehua Jiao,Xiaohong Zhou,Cong Liang,Kexin Yan,Ye Zhao,Xiujie Deng,Xue Han,Yanyan Yang,Hanmin Liu,Pimin Gong,Lanwei Zhang
Despite the health benefits of Vitis vinifera L. leaves, its anti-obesity potential has not been fully explored. In this work, we showed that Vitis vinifera L. leaf extract (VLE) inhibits the pancreatic lipase activity. Intragastric administration of VLE to mice led to a significant decrease in the body weight, tissue fat accumulation, levels of cholesterol, low-density lipoprotein and triglyceride compared to mice fed with high fat diet. We also found a lower level of neuropeptide-Y (NPY) in the serum and hypothalamus and a higher level of fibroblast growth factor 15 in mice supplemented with VLE. These results suggested that VLE regulates both the NPY-mediated pathway and the bile acid-FGF15 pathway to control energy metabolism and body weight gain. The composition of VLE was further investigated by a targeted metabolomics approach, which identified 21 compounds including phenolic acids, flavones, flavanols, flavanones, coumarins, and stilbenes. Taken together, we demonstrated the capacity of grape leaves in reducing obesity, which could be mediated by NPY and bile acids. Identification of putative active compounds in VLE also open the path for further studies to determine their effectiveness individually to treat obesity.
研究领域:
营养学
·
药理学
·
分子生物学
·
代谢组学
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高影响因子
危险品化学品经营许可证（带存储）