JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2020
·
IF 1.701
Huili Zhang,Hailin Yu,Wen Yuan,Bo Yu,Ying Chen,Jinjun Deng,Danfeng He,Ye Zhang
Co2+ and F– are doped into lattice of TiO2 powders, and the effects on charge trapping, recombination, and interface transfer are systematically researched. Double doped TiO2 photocatalyst was introduced on Graphene oxide, to construct heterojunction for photocatalytic denitrification of fuel containing pyridine (PY), indole (IND), and quinoline (QUI). A significant improvement in the photocatalytic activity was detected with the double doped modified heterojunction photocatalyst as compared to the pure TiO2. The reason for the improvement of the photocatalytic denitrification performance of oil may be derived from that the doped metal ions and nonmetal ions capture charge carriers to provide an alternative pathway for interface charge transfer, decreased the band gap width and the energy required for the transition, and caused the red shift in the light response range. On the other hand, catalyst supported on RGO, not only accelerated the transfer of photogenic carriers, improved the life of catalytic active component, but also enhanced the dispersibility of catalyst in oil. The experimental results showed that the activity and reusability of the photocatalyst denitrification performance was found satisfactory. On this basis, it is indicated that Co2+/F–/TiO2-RGO can be prospective materials for catalytic denitrification of oil.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 8
·1-13
·
IF 6.232
Min Jie,Qu Xiang-Long,Yan Bing
A novel fluorescent and electron-deficient hybrid, N -methylated [Eu (pddb)phen(ox) 0.5 ] n (Eu-MOF-Me) has been prepared via post-synthetic modification. Considering its special luminescent properties and cationic framework, Eu-MOF-Me is developed as a visualized fluorescent probe. Notably, water-stable Eu-MOF-Me exhibits advantages like good structural and fluorescent stability in a wide range of pH value (3.39–10.86), excellent identification ability for F − , I − , and S 2− (it can easily distinguish F − and I − from other halogen ions and can realize naked eye identification of F − , I − , and S 2− ), relatively low detection limits (6.61 μM for S 2− , 7.57 μM for F − ), and reusability. More importantly, it has been utilized for the construction of a Boolean logic gate system. In this system, Eu-MOF-Me serves as the gate, by taking F − , I − , and S 2− as the inputs and fluorescence emission bands (UV380, B437, and R612) as the outputs; some primary logic gates (NOR, IMP, YES, NOT) and the combination of them have been realized. Moreover, we achieved a cascaded logic gate (NOR+OR). For further application, a molecular computing keypad-lock security system has been obtained.
A novel fluorescent and electron-deficient hybrid named Eu-MOF-Me has been prepared via post-synthetic methylation. Considering its special luminescent properties and cationic framework, Eu-MOF-Me was developed as a fluorescent probe for the visual monitoring of important anions. In addition, it was used for the construction of Boolean logic library and a keypad-lock system was achieved
研究领域:
化学
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材料科学
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分子生物学
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DOI
PubMed
高影响因子
Journal of Cleaner Production
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2024
·
IF 9.7
Min Wang,Guanghua Lu,Runren Jiang,Tianjian Dang,Yufang Chen,Jianchao Liu,Zhenhua Yan,Jun Hou
The widespread use of bisphenol F (BPF) as the commonly used alternative to bisphenol A (BPA) in the industry and its hazardous effects on ecological system and human health have attracted widespread attention. In this study, V C -FCN 0.3 hollow nanotube structure with confinement space effects and combined carbon vacancies was constructed by the spatial self-corrosion strategy, which effectively addressed the inherent limitations of conventional carbon nitride and achieved 100% removal rate of BPF within 2 h under visible light. Carbon vacancies not only accelerated the transfer of photogenerated carriers, but also enhanced the adsorption and activation of oxygen that accelerating the production of ·O 2 − , the main active species in this system. In addition, the special spatial structure shortened the mass transfer distance between the target pollutants and the active species. What's more, V C -FCN 0.3 showed excellent, stable, and eco-friendly photocatalytic degradation of bisphenol F over a wide pH range and in five water matrices, contributing effectively to the solution of purification of wastewater containing bisphenol analogues.
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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DOI
高影响因子
CHEMOSPHERE
·
2019
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IF 5.108
Yongming Wu,Jing Huang,Mi Deng,Yuanxiang Jin,Huilin Yang,Yu Liu,Qinyan Cao,Jan A. Mennigen,Wenqing Tu
6:2 chlorinated polyfluorinated ether sulfonate (F-53B), a Chinese PFOS alternative, has recently been identified in the aquatic environment at concentrations similar to or higher than perfluorooctane sulfonate (PFOS). Although previous studies have shown that F-53B can trigger oxidative stress in fish, the underlying molecular mechanism is still largely unknown. In this study, zebrafish embryos were exposed to various concentrations of F-53B (0, 0.5, 20 and 200 μg/L) for 5 d to investigate oxidative stress responses and possible molecular mechanisms of action. Our results showed that F-53B accumulated in a concentration-dependent manner in zebrafish larvae. The contents of malondialdehyde (MDA) and reduced glutathione (GSH), as well as the activities, mRNA and protein levels of most of antioxidant enzyme genes involved in the phosphatidylinositol 3-kinase (PI3K)/Akt/Nrf2-ARE pathway were significantly reduced. Further in silico study indicated that F-53B binds tightly to PI3K, which may be related to the inhibition of Nrf2-regulated antioxidant functions by F-53B as a PI3K inhibitor. Combining in vivo and in silico studies, we elucidated the effects of F-53B on antioxidant system of zebrafish through the PI3K/Akt/Nrf2-ARE pathway, which increases our understanding of the molecular mechanism of F-53B on antioxidant responses in fish.
研究领域:
环境科学
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毒理学
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分子生物学
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DOI
PubMed
高影响因子
Scientific Reports
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2025
·Vol. 15
·期 1
·1-16
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IF 3.9
Wu Yongming,Pei Kexuan,Zhou Jiayu,Xiong Jianzhong,Liu Yu,Li Panrong,Li Fangfei,Wang Jiaqi,Liu Xiangmin,Deng Mi,Wu Chenxi
A novel substitute for perfluorooctane sulfonate (PFOS), 6:2 Chlorinated polyfluoroalkyl ether acid (6:2 Cl-PFAES, F-53B), has been widely used in the electroplating and firefighting industries, raising concerns due to increasing environmental prevalence. This study systematically investigated the adsorption characteristics of F-53B by coconut shell activated carbon (CSAC) and elucidated the underlying mechanisms through adsorption kinetics, isotherm modeling, and multi-scale characterization. Results show that the maximum adsorption capacity of CSAC for F-53B reached 261.64 mg/g, with the process best described by the pseudo-second-order kinetic model (R 2 > 0.97) and the Langmuir isotherm (R 2 > 0.94). Intraparticle diffusion modeling revealed a three-stage adsorption sequence: surface adsorption (0–2 h), pore diffusion (2–8 h), and dynamic equilibrium (8–48 h). Solution pH influenced adsorption efficiency by regulating surface charge. Under acidic conditions (pH < point of zero charge, pHzpc = 4.49), strong electrostatic interactions between protonated CSAC surfaces and anionic F-53B resulted in an 85% removal efficiency. In contrast, alkaline conditions (pH > 7) led to a 70% reduction in adsorption efficiency ( p < 0.05) due to electric repulsion. The microporous-dominated structure of CSAC (specific surface area: 857.69 m 2 /g; pore volume: 0.34 cm 3 /g) facilitated synergistic adsorption mechanisms. Oxygen-containing functional groups (C-O, -OH) promoted hydrogen bonding and hydrophobic interactions, enhancing F-53B adsorption. Besides, CSAC is optimized for emergency scenarios, it achieves 99.9% removal efficiency for 1 mg/L F-53B within 8 h at room temperature, with a maximum capacity of 261.64 mg/g; also, it maintains > 85% removal efficiency under wide pH conditions and tolerates coexisting ions (e.g., Cl − , SO 4 2− , Ca 2+ ).This study highlights the multi-mechanistic synergy of CSAC in theremoval of F-53B, providing theoretical foundations and technical insights for biochar-based remediation of emerging contaminants.
研究领域:
环境科学
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化学工程
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水处理
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吸附技术
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材料科学
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DOI
PubMed
高影响因子
RSC Advances
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2014
·Vol. 4
·期 63
·33466-33473
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IF 3.708
Qing Wang,Zhi Min Wu,Yongfei Li,Ying Tan,Ning Liu,Yuejin Liu
The efficient hydroxyalkylation of phenol with formaldehyde to bisphenol F over a thermoregulated phase-separable reaction system containing a water-soluble Brønsted acidic ionic liquid was studied. The reaction system containing the water-soluble IL showed thermoregulated biphasic behavior with change of the alkyl chain length of IL, temperature and water amount. Four types of imidazolium-, ammonium-, phosphonium- and pyridinium-based water-soluble ionic liquids with different anions of dihydrogen phosphate [H2PO4]−, acetate [CH3COO]− and hydrogen sulfate [HSO4]− were used as both Brønsted acidic catalysts and thermoregulated solvents. Among them, [C6MIM][HSO4] gave a high yield of 80.5% and a selectivity of 96.9% for bisphenol F, and the optimal reaction conditions were stirring speed 450 rpm, phenol–formaldehyde ratio 6 : 1, IL catalyst molar concentration 12.5%, reaction temperature 90 °C and reaction time 1 h. [C6MIM][HSO4] could be recovered by simple decantation and could retain its original activity even after six recycling-uses [CnMIM][HSO4] with the alkyl chain length n = 6 found to be the most suitable for the synthesis of bisphenol F because of both the formation of a thermoregulated monophasic reaction system at 90 °C to enhance the reaction efficiency and as a thermoregulated phase-transition solvent to facilitate its recovery from the reaction system.
研究领域:
化学工程
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催化反应
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DOI
高影响因子
Marine Drugs
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2024
·Vol. 22
·期 10
·439
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IF 4.9
Huiwen Zhang,Chen Sun,Qing Xia,Peihai Li,Kechun Liu,Yun Zhang
Existing antithrombotic drugs have side effects such as bleeding, and there is an urgent need to discover antithrombotic drugs with better efficacy and fewer side effects. In this study, a zebrafish thrombosis model was used to evaluate the antithrombotic activity and mechanism of Brevianamide F, a deep-sea natural product, with transcriptome sequencing analysis, RT-qPCR analysis, and molecular docking. The results revealed that Brevianamide F significantly attenuated the degree of platelet aggregation in the thrombus model zebrafish, leading to an increase in the number of circulating platelets, an augmentation in the return of blood to the heart, an elevated heart rate, and a significant restoration of caudal blood flow velocity. Transcriptome sequencing and RT-qPCR validation revealed that Brevianamide F may exert antithrombotic effects through the modulation of the MAPK signaling pathway and the coagulation cascade reaction. Molecular docking analysis further confirmed this result. This study provides a reference for the development of therapeutic drugs for thrombosis.
研究领域:
药理学
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分子生物学
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血栓研究
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DOI
PubMed
高影响因子
FUEL
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2025
·
IF 7.5
Penglin Kang,Changgui Song,Jinbo Guo,Yuan Lai,Xiangru Li,Leixin Hou,Wenjie Liu,Xiaodong Li
To achieve a synergistic enhancement of both energy output and safety performance in metal powder-based high-energy materials, this study employed coaxial focusing droplet technology to fabricate HMX/TiH 2 /F composite microspheres. The influence of dispersed phase concentration on microsphere morphology and particle size was systematically investigated. HMX/F and HMX/Ti/F microspheres, prepared using the same method, served as control groups for analyzing crystal structure and functional group composition. Results indicated that all three types of microspheres retained their original chemical structures. Performance tests revealed that HMX/TiH 2 /F microspheres achieved a favorable balance between thermal stability and reactivity, with thermal safety significantly improved compared to the control samples. Specifically, its impact sensitivity increased by 8 J and 13 J compared to HMX/F and HMX/Ti/F, respectively; friction sensitivity increased by 164 N and 228 N; and electrostatic accumulation was reduced by 1.46 and 16.40 nC, respectively, demonstrating superior mechanical and electrostatic safety. Combustion and detonation tests further demonstrated that HMX/TiH 2 /F microspheres exhibited the most intense combustion flame. The ignition delay time was reduced by 67.48 ms and 26.20 ms compared to HMX/F and HMX/Ti/F, respectively, and the combustion duration was shortened by 0.51 s and 0.42 s. Meanwhile, HMX/TiH 2 /F composite microspheres still maintained a high energy output, and the measured detonation velocity was 7685.7 m/s, which was 149.99 m/s higher than that of HMX/Ti/F. These findings indicate that the incorporation of TiH 2 facilitates the coordinated optimization of high-energy materials with respect to both safety and energetic performance, demonstrating promising application potential.
研究领域:
材料科学
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含能材料
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热力学
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燃烧学
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安全工程
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颗粒工程
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产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2025
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IF 8
Xincong Su,Li Kai,Xiaowen Han,Rongzhi Wang,Xiao Yang,Xuedong Wang,Jin Yan,Qiuhui Qian,Zejun Wang,Huili Wang
Bisphenol S (BPS) and Bisphenol F (BPF), as alternatives to bisphenol A (BPA), are recognized for their endocrine-disrupting properties, but their combined immune toxicity mechanisms remain poorly understood. This study systematically evaluates the individual and joint immune toxicity effects of BPS and BPF through ADMET predictions, transgenic zebrafish models, and molecular docking analyses. The results indicate that equal effect concentration BPS and BPF act through distinct immune pathways: BPS primarily targets macrophages to mediate immune responses, while BPF significantly stimulates neutrophil proliferation and induces a stronger inflammatory response through chemokine signaling. Molecular docking studies show that BPF binds more stably to pro-apoptotic protein Mapk8 and oxidative stress-related protein Hsp90aa1, leading to significantly higher levels of apoptosis and reactive oxygen species (ROS) compared to BPS. The similarity of modes of action (MOA)between BPS and BPF based on relevant immune indicators calculated and experimentally is about 0.3; this quantitative result also proves that modes of action differ widely. Nonetheless, most of the indicators showed superimposed effects in the combined experiments, and it is noteworthy that the oxidative stress indicators (SOD, MDA) showed synergistic effects, suggesting that BPS and BPF, which have very different modes of action, are able to be risk assessed using an additive model with respect to immunity, but may exhibit synergistic risks with respect to oxidative stress. This research demonstrates that BPS and BPF induce immune toxicity via different molecular targets and pathways and highlights the need to account for their synergistic effects in risk assessments. These findings provide important insights into the immune toxicity mechanisms of BPA substitutes and the potential risks of combined exposures.
研究领域:
环境科学
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毒理学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Shukai Zhang,Linghui Cao,Aijuan Xie,Shiping Luo
4-Nitrophenol (4-NP), a hazardous chemical compound, presents significant risks to ecological balance, public well-being, and the integrity of the food supply chain. Consequently, the development of detection techniques characterized by both efficiency and precision is of utmost importance. In the present work, ZnCo(OH)F/multi-walled carbon nanotubes (MWCNTs) composite was synthesized through a hydrothermal approach, followed by a high-temperature annealing process to transform them into ZnCo 2 O 4 /MWCNTs tailored for electrochemical sensing of 4-NP. The integration of MWCNTs during the fabrication process induced a pronounced synergistic interaction between ZnCo 2 O 4 and MWCNTs, leading to a substantial enhancement in the electrochemical performance of the composite. The ZnCo 2 O 4 /MWCNTs-based sensors exhibit notable benefits, including an expanded electrochemically active surface area, superior electrical conductivity, and exceptional selectivity. Under optimized experimental parameters (S/N = 3), the sensor exhibited a broad linear detection range (0.5–600 μM), coupled with a lower limit of detection of 0.026 μM. When used on real samples, the sensor showed recovery rates of 98.79 %–100.47 %, indicating its feasibility for practical use in environmental monitoring and food safety evaluation.
研究领域:
分析化学
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材料科学
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环境科学
·
电化学
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食品安全科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
·
2025
·
IF 2.8
Pi Duan,Li Xiang,Xu Zitian,Wang Peitong,Liang Zhiying,Li Bingying,Guo Yafen,Huang Yongsi,Song Xiaohong,Wang Junjie,Wang Xuegeng
Due to the known adverse effects of bisphenol A (BPA), bisphenol F (BPF) and bisphenol S (BPS) have been widely adopted as substitutes. However, they are now detected at significant levels globally, often at levels rivaling or exceeding those of BPA, raises concerns regarding their potential ecological and health risks. Our previous work indicated that BPS exhibits lower toxicity than BPF in Chinese medaka (Oryzias sinensis). To validate this, we compared their toxicity in Japanese medaka (Oryzias latipes) using both acute and developmental exposure tests. In the 96-hr acute test, embryos exposed to concentration gradient showed a BPF median lethal concentration of 128 mg/L, while BPS exposure resulted in high survival even at the highest concentrations. Based on the observed acute toxicity, we investigated the underlying mechanism of BPF and evaluated vitamin C rescue. Vitamin C treatment effectively improved embryos survival rates. Subsequently, in the 15-day developmental exposure, 2 μg/L BPF significantly increased yolk sac edema and malformation rates. Bisphenol exposure did not show concentration-dependent malformation increases. Transcriptomic analysis revealed BPF induced more differentially expressed genes (DEGs) than BPS at the tested concentrations (0.02, 0.2, 2 μg/L): 177, 14 and 24 DEGs were identified in BPF-treated groups, respectively. In contrast, only 4, 2, and 12 DEGs were detected in the corresponding BPS-treated groups. Further analysis of the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways enrichments provided further insights into the potential toxicological mechanisms of BPF. This study provides a comparative toxicity assessment of BPF and BPS, elucidates BPF's acute and developmental toxicity pathways, and offers toxicological data for risk assessment and regulation, which also provides a direction for in-depth research on toxicity mechanisms.
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DOI
PubMed
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2015
·
IF 3.163
De-Ming Guo,Xiang-Quan Chen,Liang Tang,Jia-Ning Wu,Teng Fu,Xiao-Lin Wang,Xiu-Li Wang,Li Chen,Yu-Zhong Wang
In order to avoid potential environmental and safety problems caused by conventional flame retardants , we synthesized the flame-retardant-element-free copolyesters via chemically incorporating the structural units of bisphenol A and bisphenol F into the PET main chain via melt polymerization, respectively. The chemical structures of resulting copolyesters were confirmed by 1 H NMR and 13 C NMR spectroscopy. Interestingly, though there exists only a small structural difference between bisphenol A and bisphenol F, those two kinds of copolyesters show different thermal stabilities, pyrolysis behaviours and flame retardant performances. Pyrolysis-GC/MS tests were performed to investigate the pyrolysis mechanism of the copolyesters, and the results showed that the “Ar–CH 2 –Ar” structure units (bisphenol F) would lead to rearrangement reactions at high temperature, ultimately forming the phenanthrene ring structures; whereas “Ar–C(CH 3 ) 2 −Ar” structure units (bisphenol A) could not. The corresponding specific pyrolysis processes are proposed. Thermogravimetric analysis (TGA) results indicated that these rearrangement reactions would most likely occur in the solid state of the copolyesters and made them have high residues. Cone calorimeter measurements, LOI and vertical UL-94 tests were used to characterize the flame-retardant properties of the copolyesters, and the results proved that the copolyesters containing bisphenol F had better flame retardancy, more char formation and less melt drippings than those containing bisphenol A due to the rearrangement reactions.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）