PLASMA CHEMISTRY AND PLASMA PROCESSING
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2022
·Vol. 43
·期 2
·491-511
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IF 3.337
Huang Shaoyong,Huang Quanjia,Gan Jiaming,Li Ting,Wang Lei
In this study, Fe-rich sludge was pretreated by dielectric barrier discharge (DBD) and used as a Fenton catalyst for the degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) in aqueous solution, where hydrogen peroxide was in situ supplied from a glow discharge plasma (GDP) in contact with the solution. Synergistic mechanism of the two plasmas during 2,4-D degradation was explored. The Fe-rich sludge pretreated by H 2 -DBD could significantly accelerate the 2,4-D degradation as it converted Fe(III) in the sludge to the active Fe(II). 2,4-D can be completely removed in the presence of H 2 -DBD pretreated Fe-rich sludge with 25 min of GDP at pH 0 3.0 and catalyst dosage of 1.0 g/L. Quenching experimental studies showed that both ·OH (oxidative degradation) and ·H (reductive dechlorination) were responsible for 2,4-D degradation. Reducing radicals (such as ·R and·H) formed during GDP can continuously reduce the Fe 3+ back to Fe 2+ , which further promoted the degradation and dechlorination of 2,4-D. The results of three consecutive experiments indicated the stability and reusability of catalyst. This study provides a potential method for the recycle of Fe-rich sludge as a novel and cost-effective catalyst for 2,4-D removal from aqueous environments, which is significant for the terminal disposal of Fe-rich sludge. Graphical Abstract
研究领域:
环境科学
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废水处理
·
化学工程
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Tiantian Zhang,Haonan Mi,Shichao Wei,Yuan Xu,Zhao Yang,Shuai Liang,Xuelu Ding
A novel, compact, and automated laser ablation dielectric barrier discharge thin layer chromatography-mass spectrometry (LA-DBD-TLC-MS) device was developed for the rapid detection of biogenic amines (BAs) in fishery products. This plug-and-play system integrates thermal desorption via diode laser, DBD plasma ionization, and tandem MS detection, with key operational parameters optimized through experimental and computational methods. Utilizing nanoscale carbon black as a matrix, the device achieved a detection limit of 0.230 pg/mm 2 . It demonstrated comparable efficacy to HPLC-MS/MS in screening six BAs and enabled species discrimination and spoilage assessment in fish with machine learning algorithms (PCA, RF, SVM, MLP), yielding high accuracies. A multi-linear regression model predicted salmon spoilage with a strong correlation (R 2 = 0.974). This study confirms the LA-DBD-TLC-MS device as a reliable, precise, and high throughput tool for rapid BA analysis in fishery products, with potential for direct trace analysis of organic compounds in food matrices.
研究领域:
食品科学
·
分析化学
·
人工智能
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产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Xinglei Cui,Runhua Li,Zhonglian Li,Zhenbo Xu,Jialiang Huang,Zhi Fang
Superhydrophobic surfaces are in high demand for insulating materials because of their excellent self-cleaning property, which is advantageous to enhance their anti- wet and pollution flashover capability. Herein, we report on a one-step, energy-efficient and environment-benign process for fabricating superhydrophobic insulation surfaces on polymethylmethacrylate (PMMA) in an Ar/hexamethyldisiloxane(HMDSO) gas using nanosecond-pulsed DBD in homogeneous-filamentary mixed mode. The discharge mode judged by dynamic imaging with ICCD is maintained by controlling the HMDSO content and extending the discharge gap. It is found that the mixed discharge with filaments in the homogeneous plasma contributes to the fabrication of rough superhydrophobic film with robust mechanical stability, as further evidenced by SEM, AFM, FTIR, and XPS analysis. The film not only introduce shallow traps to accelerate potential decay and increase the dry flashover voltage, but also shrinks the wetting area to increase the wet flashover voltage 2.6 times that of the unprocessed PMMA. Moreover, results indicate that transformation from superhydrophilic to superhydrophobic surfaces can be fine-tuned by regulating the precursor content. The proposed strategy on the nanosecond pulse-driven discharge in mixed mode enables the effective fabrication of superhydrophilic and superhydrophobic surfaces and may provide practical guidelines for advanced surface engineering.
研究领域:
材料科学
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等离子体技术
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表面工程
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DOI
高影响因子
FOOD CONTROL
·
2024
·
IF 5.6
Zhumiao Ye,Haidu Yuan,Jianhao Zhang,Wenjing Yan,Changrui Xing
Fresh pork is easily contaminated by microorganisms, leading to spoilage. Dielectric barrier discharge (DBD) cold plasma technology has shown significant advantages in the preservation of meat. However, severe lipid oxidation of pork resulting from DBD treatment greatly limits its development. Herein, the antibacterial D@MSNs-P/PCL nanofiber membranes were prepared by modification polycaprolactone (PCL) with pre-reported nanomaterials (D@MSNs-P) through electrostatic spinning. Compared with the PCL membranes, the D@MSNs-P/PCL membranes showed better water stability, lower water vapor transmission rate, stronger hydrophobicity, and potent antibacterial activity. The D@MSNs-P/PCL membranes can be used for wrapping fresh pork before treatment with DBD plasma, which can not only improve the antibacterial efficiency but effectively inhibit the lipid oxidation and color change of fresh pork, extending the shelf life for 2 days. The developed D@MSNs-P/PCL membranes can also be used alone to preserve other fresh meat or oily food, with a wide range of application prospects.
研究领域:
食品科学
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材料科学
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微生物学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Zhen Li,Yawen Wang,He Guo,Shijia Pan,Chendong Puyang,Yingying Su,Weichuan Qiao,Jiangang Han
Development of efficient abatement technology for drugs and personal care products (PPCPs) has important scientific and practical significance to restrain its discharge to the natural water environment. This research aims to investigate ibuprofen (IBP) elimination in water film dielectric barrier discharge (DBD) plasma system driven by pulse power. With raising input power, the removal rate was improved. When input was 95 W, the removal rate and kinetic constant were up to 96.1% and 0.090 min −1 , respectively. Besides, heightening frequency, duty ratio and solution flowrate would promote the degradation of IBP. IBP were more favorably degraded at lower IBP concentration and neutral pH condition. Active species including ·OH, electron, 1 O 2 and · O 2 – dominated decomposition of IBP. The generation of O 3 , · OH and H 2 O 2 in deionized water and IBP solution was compared. UV–Vis spectrum and three dimensional fluorescence spectroscopy illustrated that IBP molecules could be decomposed effectively after DBD plasma treatment. During IBP degradation, COD and TOC was also relieved with extension of treatment time. The possible degradation routes of IBP in water film DBD plasma system were proposed based on LC-MS and Discrete Fourier transform (DFT) simulation. Based on the identified intermediates, their potential toxicity was evaluated with the help of US-EPA-TEST software. Water film DBD plasma technology was also suitable for actual wastewater treatment. The comparison of other technologies for IBP degradation was carried out finally. This work can provide exploratory platforms for comprehensively understanding and enhancing IBP degradation in DBD plasma technology.
研究领域:
环境科学
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化学工程
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产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Wei Gao,Xiaoying Xu,Xueqi Han,Ling Zhang,Haitao Ding,Chengxun Deng
A multicomponent system consisting of dielectric barrier discharge (DBD), g-C 3 N 4 /FOD composite catalysis, and persulfate (PS) oxidation was successfully constructed for synergistically degrading trichloroethylene. The successful preparation of the g-C 3 N 4 /FOD composite catalyst material was confirmed through various testing methods, including Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectrometer (FT-IR), X-ray Photoelectron Spectroscopy (XPS) and Electrochemical workstation. Under this composite system, trichloroethylene degradation efficiency in water reached 93.2 % after an 8-minute reaction. Thermal gravimetric analysis (TG) and cyclic usage experiments both demonstrated the excellent stability of the g-C 3 N 4 /FOD catalyst removal efficiency of the composite as concentration, DBD discharge voltage and carrier gas flow rate, g-C 3 N 4 /FOD dose, and PS concentration. Optimal treatment conditions were determined through response surface methodology (RSM) experiments. Within a reaction time of 30 min, a total organic carbon (TOC) removal rate of 87.4 % was achieved, effectively reducing intermediate product formation and making the combined process more environmentally friendly than individual treatments. Experimental evidence SO 4 − , OH and O 2− played dominant roles during trichloroethylene degradation in water. Gas chromatography–mass spectrometry analysis identified potential pathways for trichloroethylene degradation and revealed two major intermediate products. Toxicity prediction results for these degradation products showed lower acute toxicity and chronic toxicity compared to the precursor compound.
研究领域:
环境科学
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催化化学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2022
·
IF 7.968
Sisi Xiao,Zhou Shen,Shilin Song,Song Han,Yansheng Du,Huijuan Wang
Catalysis of the ZnO/cellulose acetate (CA) films in a multi-electrode paralleling dielectric barrier discharge (DBD) system for sulfadiazine (SDZ) degradation was investigated in this study. The catalysis was induced by the multiple physical and chemical effects produced during the DBD process. The obtained results on the reactive species formation revealed that the more O 3 , •OH as well as 1 O 2 could be formed by the addition of the ZnO/CA films into the DBD plasma system. The optimal additive conditions of the catalyst were 4 pieces of 3% the ZnO/CA films addition. There was a better catalytic effect of the ZnO/CA films than the equal amount of the nano ZnO powder addition. The ZnO/CA films still took on the catalytic activity after four cycles usage in the DBD plasma system. The possible degradation pathways were also speculated by analyzing the inorganic and organic intermediates formed during the SDZ degradation.
研究领域:
环境科学
·
化学工程
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Huihui Zhang,Sisi Xiao,Yansheng Du,Shilin Song,Kun Hu,Yuyue Huang,Huijuan Wang,Qiangshun Wu
Herein, dielectric barrier discharge (DBD) plasma and MnO 2 -cellulose acetate (MnO 2 /CA) composite films was coupled together to degrade sulfamethoxazole (SMX) in water. The MnO 2 /CA composite films were firstly prepared successfully though heating blending method in this study and then characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Raman spectra, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TG). Catalytic effect of the MnO 2 /CA films was investigated by comparing the removal percentages, the kinetic constants, the energy utilization efficiencies ( G 50 ) as well as the COD and TOC removal during the SMX degradation in the DBD plasma system with or without the MnO 2 /CA films addition under different reaction conditions. The optimal catalytic performance was obtained by adding the 3% MnO 2 /CA films into the DBD plasma system and the alkaline solution condition was favorable for the SMX degradation. After four times using, the MnO 2 /CA composite films still maintained the catalytic activity. Catalytic mechanism of the MnO 2 /CA films was speculated by analyzing the changes of solution pH and conductivity during the reaction, concentrations of the formed O 3 and H 2 O 2 in water and the generated active species ( 1 O 2 and ·OH) in both the DBD plasma system and the DBD-MnO 2 /CA films system. The quenching test was also carried out to figure out the important effect of the ·O 2 − , 1 O 2 and ·OH for the SMX degradation in the synergistic system. Finally, LC-MS was used to analyze the main intermediates generated during the SMX degradation and the possible degradation pathways were accordingly speculated. The research could provide a new direction for the development and application of the DBD plasma technology as well we the composite films catalyst.
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
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Kun Hu,Qingjie Xie,Huijuan Wang,Bo Zhang,Yuyue Huang,Shilin Song,Huihui Zhang,Yixiao Ding,Hai Huang,Chundu Wu
In this paper, degradation of ciprofloxacin (CIP) in a circulating dielectric barrier discharge (DBD) plasma system with Cu-CeO 2 @CA composite films addition was investigated. The Cu-CeO 2 @CA films were synthesized through hydrothermal method, and the samples were characterized by SEM , XRD, EDS, FT-IR and Raman spectra analysis. The obtained results show that there was synergistic effect of the DBD plasma and the Cu-CeO 2 @CA films on the CIP degradation and mineralization. The optimal performance was obtained under the condition of 5 wt% Cu-CeO 2 nanoparticles doping in the composite film. Besides the effect of the DBD plasma, the Cu-CeO 2 @CA films could drive the O 3 decomposition, photocatalysis and then the more reactive oxygen species (ROS) formation. The presence of the main active species and their contributions to the CIP degradation were determined by electron spin resonance (ESR) analysis and radical quenching experiments. Methods of UV–vis spectrum, three-dimensional fluorescence spectrum and liquid chromatography mass spectrometry (LC-MS) were used to analyze the CIP decomposition process. The prepared Cu-CeO 2 @CA composite films had certain stability in the four cycles of application and the film catalyst was convenient for recycling. The toxicity evaluation results indicated the decline of the solution toxicity after treating in the Cu-CeO 2 @CA/DBD system.
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
FOOD CHEMISTRY
·
2024
·
IF 8.5
Yongniu Zhang,Er-Fang Ren,Tao Wen,Shijun Lyu,Lili Gai,Siyu Chen,Kai Li,Zhong Han,Fuge Niu,Debao Niu
The study aimed to investigate the allergenicity change in casein treated with dielectric barrier discharge (DBD) plasma during in vitro simulated digestion, focusing on the immunoglobulin E (IgE) linear epitopes and utilizing a sensitized-cell model. Results indicated that prior treatment with DBD plasma treatment (4 min) before simulated digestion led to a 10.5% reduction in the IgE-binding capacity of casein digestion products. Moreover, the release of biologically active substances induced from KU812 cells, including β-HEX release rate, human histamine, IL-4, IL-6, and TNF-α, decreased by 2.1, 28.1, 20.6, 11.6, and 17.3%, respectively. Through a combined analysis of LC-MS/MS and immunoinformatics tools, it was revealed that DBD plasma treatment promoted the degradation of the IgE linear epitopes of casein during digestion, particularly those located in the α-helix region of α s1 -CN and α s2 -CN. These findings suggest that DBD plasma treatment prior to digestion may alleviate casein allergic reactions.
研究领域:
食品科学
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免疫学
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生物化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2024
·
IF 3.1
Songze Wang,Xin Zhou,Xin Wang,Shengyu Cheng,Xi-Ling Li,Jun Nan,Jun Zhe Min
Human hair is a non-invasive biological sample that is easy to collect and store and can reflect long-term body health. However, the correlation between DL-amino acids and metabolic diseases in hair samples has not been studied. Therefore, we propose a novel UHPLC-HRMS method for analyzing seven free chiral amino acids (DL-Thr, DL-Glu, DL-Ala, DL-Val, DL-Pro, DL-Leu, and DL-Phe) simultaneously in hair samples by derivatization of chiral probe 4-(N,N-dmethylaminosulfonyl)-2,1,3-benzoxadiazole-trans-2-methyl-L-proline (DBD-M-Pro) labeled with targeted amino functional groups. Gradient elution was carried out using an ACQUITYTM BEH C18 (100×2.1 mm,1.7 μm) column with a mobile phase of 0.15 % formic acid (FA) in 10 mM ammonium acetate (CH 3 -COONH 4 ) and 0.2 % FA in acetonitrile. The labelled DL-amino acid diastereoisomers could be completely separated, with a resolution (Rs) of 1.59–11.44. These amino acids show a strong linear correlation within the range of 3.1–99.2 pmol (R 2 ≥ 0.9990). Intraday and interday precision was 1.87 %–14.87 %. The average recovery was 96.12 %–105.33 %. The limit of detection (LOD) ranged from 0.29 to 2.11 pmol. We then employed the method to determine the concentration of free chiral amino acids in hair samples from 30 healthy volunteers (HVs) and 30 diabetes patients (DPs). Male diabetes patients had significantly higher levels of L-Thr, L-Val, L-Leu ( p < 0.05), and D-Ala ( p < 0.01) in their hair samples than male healthy volunteers and female diabetes patients had significantly higher levels of D-Ala ( p < 0.05) in their hair samples than female healthy volunteers. This is the first study to confirm the feasibility of using free DL-amino acids in human hair as potential biomarkers for diabetes.
研究领域:
分析化学
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代谢组学
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临床化学
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Qiaoyan Dong,Chengshuang Ling,Shan Zhao,Xin Tang,Yu Zhang,Yun Xing,Huimin Yu,Ke Huang,Zhirong Zou,Xiaoli Xiong
The rational design of high-efficiency catalysts for non-enzymatic glucose sensing is extremely important for the timely and effective monitoring of glucose content in beverages and human blood. A 3D bimetallic organic framework (Coordination Polymer of Oslo, CPO) nanorod array with oxygen vacancies was green fabricated on carbon cloth (Ni 0.5 Co 0.5 -CPO-27 NRA/CC) using dielectric barrier discharge (DBD) microplasma for the first time. Density functional theory (DFT) calculations demonstrated that the oxygen vacancy of Ni 0.5 Co 0.5 -CPO-27 can be effectively induced under DBD microplasma conditions. Based on the 3D nanorod arrays with rich oxygen vacancies and bimetallic synergistic effects, as a non-enzyme glucose sensor, the Ni 0.5 Co 0.5 -CPO-27 electrode exhibited a sensitivity of 8499.5 μA L/mmol cm −2 and 3239.2 μA L/mmol cm −2 and a limit of detection (LOD) of 0.16 μmol/L (S/N = 3). It has been successfully applied to the determination of glucose levels in real samples such as cola, green tea and human serum.
研究领域:
材料科学
·
生物医学工程
·
传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）