JOURNAL OF BASIC MICROBIOLOGY
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2016
·Vol. 56
·期 11
·1194-1202
·
IF 1.585
Xia Tang,Shunwen Dong,Wenjin Shi,Ni Gao,Lei Zuo,Heng Xu
This study focused on the bioremediation role of Pleurotus eryngii in different characteristics soils contaminated with nickel (Ni) and fluoranthene. The results of bioremediation experiments showed that fluoranthene had a positive effect on the growth of P. eryngii , whereas Ni exerted a negative influence. The concentration of fluoranthene significantly decreased in inoculated soil accounting for 86.39–91.95% of initial concentration in soils and 71.46–81.76% in non-inoculated soils, which showed that the dissipation of fluoranthene was enhanced by mushroom inoculating. The highest removal rates of fluoranthene in sandy loam, loamy clay, and sandy soils reached to 87.81, 86.39, and 91.95%, respectively, which demonstrated that P. eryngii was more suitable for the bioremediation of sandy soil contaminated with fluoranthene. In addition, the presence of Ni tended to decrease the dissipation of fluoranthene in inoculated soil. Higher ligninolytic enzymes activities were detected in inoculated soils, resulting in the enhanced dissipation of fluoranthene in inoculated soils. Furthermore, P. eryngii had the ability to uptake Ni (4.88–39.53 mg kg −1 ) in co-contamination soil. In conclusion, the inoculating of P. eryngii was effective in remediating of Ni-fluoranthene co-contaminated soils.
研究领域:
环境科学
·
微生物学
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DOI
PubMed
高影响因子
CHEMOSPHERE
·
2021
·
IF 7.086
Xintong Li,Hongxia Zhao,Baocheng Qu,Yu Tian
Environmentally persistent free radicals (EPFRs) generated under irradiation have been widely detected in soil particles, atmospheric particles and microplastic particles, but the formation of EPFRs in water is not well understood. This study investigated the formation of EPFRs on particulate organic matter (POM) in water contaminated by anthracene (Ant) under irradiation. The photoformation and decay progress of EPFRs was represented with the help of electron paramagnetic resonance (EPR) technique on both actual POM and Fe(III)-montmorillonite simulated samples. EPR signals at the range of 10 16 to 10 17 spin/g were detected and the half-life time of EPFRs stored in water was at around 16.62 h and 60.80 h, much shorter than those in the air. The g factors were all larger than 2.0040, which indicated the generation of oxygen centered EPFRs. The primary intermediates were identified by gas chromatography-mass spectrometer (GC-MS) and a possible EPFR formation pathway during Ant degradation was proposed. The interaction between Ant and POM, and the hydroxylation and carbonylation of the intermediates made contributions to the generation of EPFRs. Meanwhile, the indirect photodegradation of bisphenol A (BPA) has been demonstrated by analyzing the reactive oxygen species (ROS) and photogenerated electrons in the solution with POM containing EPFRs. It is found that hydroxyl radicals (•OH) and singlet oxygen ( 1 O 2 ) were induced and might promote the photodegration. Overall, our present study provided useful information to understand the photoformation of EPFRs on POM and their fate in aqueous environments.
研究领域:
环境科学
·
化学
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DOI
PubMed
高影响因子
RESEARCH IN MICROBIOLOGY
·
2022
·
IF 3.946
Yuanyuan Song,Ziqi Wang,Yijing Long,Yang Mao,Feng Jiang,Yuanyuan Lu
Candida albicans can form biofilm on biotic and abiotic surfaces of medical implants to cause superficial and systemic infections under specific condition. The formation of hyphae and matrix of C. albicans are considered as probable virulence factors . We assessed the inhibitory activities of 26 anthraquinones against C. albicans biofilm formation, which were substituted by different functional groups including hydroxyl groups, amino groups, carboxyl groups, alkyl groups, and glycoside groups at C1- or C2-position. Among them, anthraquinones without substituents at other positions but only an alkyl group attached to C2-position, namely 2-alkyl-anthraquinones were determined to have significant anti-biofilm activities. Furthermore, 2-ethylanthraquinone can significantly affect genes related to extracellular matrix ( PMT6 and IFD6 ), and hyphal formation ( HWP1 , ECE1 and EFG1 ), leading to the disrupted formation of biofilm, by detail transcriptomics analysis. We believed that 2-ethylanthraquinone could inspire more discoveries of anti-biofilm agents against C. albicans .
研究领域:
微生物学
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药理学
·
分子生物学
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DOI
PubMed
高影响因子
Analytical Methods
·
2021
·Vol. 14
·期 3
·306-311
·
IF 2.896
Song Zhao,Hongbo Jiang,Chengbin Gong,Wenjing Qi,Lianzhe Hu,Yan Zhang
A novel fluorescent sensor based on an asymmetric anthracene derivative (SSAPA) was designed and synthesized. Using this molecule, a rapid and sensitive assay for detecting Tb3+ and ATP in aqueous solutions was established. The SSAPA molecule had excellent aggregation-induced emission (AIE) performance and good aqueous dispersion ability. This molecule could coordinate with Tb3+ and the fluorescence quenched linearly with the increase in the concentration of Tb3+ from 0.005 to 1.2 μM. Since both Tb3+ and adenosine triphosphate (ATP) have strong binding ability, ATP can compete with Tb3+ from the SSAPA/Tb3+ complex leading to fluorescence recovery. In this way, a brand-new fluorescent “turn-on” assay for ATP in the range from 0.01 to 0.4 μM was developed using the Tb3+-based complex probe. The detection limits for Tb3+ and ATP both reached single-digit nanomole per millilitre (2.8 nM and 4.5 nM, respectively), which demonstrated that this method has high sensitivity. Besides, Tb3+ and ATP also could be well detected in other complex environments such as real water samples or serum samples. This study provides a feasible assay for detecting trace amounts of Tb3+ and ATP in aqueous solutions.
研究领域:
分析化学
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生物化学
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DOI
PubMed
高影响因子
Atmosphere
·
2022
·Vol. 13
·期 4
·543
·
IF 3.11
Zhongcheng Wang,Jingsong Feng,Xiaoyu Liu,Hao Guo
Carbon capture is one of the important methods to achieve carbon neutrality. In this paper, a simple and reliable method for the preparation of poly(anthraquinone)/multi-walled carbon nanotube composites (PAQ/MWCNTs) for capturing carbon dioxide is proposed. Using constant magnetic stirring, 1,4-anthraquinone (1,4-AQ) was allowed to accumulate on multi-walled carbon nanotube (MWCNTs) substrates via π–π. The poly(anthraquinone)/multi-walled carbon nanotube composites were produced by this continuous process. Besides, the carbon cloth electrode prepared from PAQ/MWCNTs composites was subjected to redox potentials for carbon dioxide capture. Results showed that PAQ/MWCNTs composites had good redox reversibility, their carbon dioxide capture capacity was 7.80 mmol·g−1while the material utilization rate reaches reached 73.4%.Keywords:1,4-anthraquinone;multi-walled carbon nanotubes;magnetic stirring;poly(anthraquinone)/multi-walled carbon nanotube composites;carboxylation;carbon dioxide capture
研究领域:
材料科学
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环境工程
·
化学工程
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高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2015
·
IF 2.037
Suping Ding,Qiuxiang Yin,Wei Du,Xiaowei Sun,Baohong Hou,Meijing Zhang,Zhao Wang
Crash cooling crystallization of different anthracene (ANT) and phenanthrene (PHE) mixtures in toluene, xylene, and N,N-dimethylformamide (DMF) was investigated. The crystals obtained were identified by powder X-ray diffraction, differential scanning calorimetry, and high-performance liquid chromatography. To verify the formation of different solid solutions, ternary phase diagrams of ANT and PHE in toluene, xylene, and DMF at 308.15 K and 0.1 MPa were determined through experiments. Two solid solutions, α and β, respectively, formed at PHE-rich and ANT-rich ends but coexisted in the middle section of the composition. The effect of solvent and separation process optimization of ANT and PHE were further investigated based on the ternary phase diagrams.
研究领域:
化学
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材料科学
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DOI
高影响因子
ACS Omega
·
2019
·
IF 2.584
Fanfan Gao,Xinyu Li,Yue Zhang,Chengde Huang,Wen Zhang
Redox flow batteries have received wide attention because of their unique advantages such as high efficiency, long cycle life, low operating cost, and independent adjustment of energy power. In this study, five types of anthraquinone derivative organic redox couple were selected, and the surfaces of graphite felt were modified. When the number of functional groups is increased or the substitution position is closer to the carbonyl (C═O) groups, a more pronounced hindrance for the C═O reaction on the benzene ring is observed; thus, the electrochemical performance and reversibility decreases. Sodium 9,10-anthraquinone-2-sulfonate solution is the best organic redox couple in terms of both reversibility and electrochemical performance. It was also found that all the surface treatment methods of graphite felt are beneficial for improving their electrochemical performances. All these superior results demonstrate that the graphite felt treated under air exposure at 550 °C for 3 h exhibited the best electrochemical performance, which might be attributed to the increase in the content of C–OH functional groups.
研究领域:
储能技术
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电化学
·
材料科学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
·
IF 6.633
Xudong Zhang,Wenbo Zhao,Jun Shen,Yugao Wang,Gang Liu,Yanxia Niu,Qingtao Sheng
Carbazole is an important organic chemical raw material with high added value, mainly derived from crude anthracene. In this research, three quaternary ammonium salts (QASs), containing triethylmethylammonium chloride (TEMAC), tetraethylammonium chloride (TEAC) and tetrapropylammonium chloride (TPAC), were innovatively used to separate carbazole from model anthracene oil by forming deep eutectic solvents (DESs). The results indicated that TEAC showed the highest separation ability among three QASs. Afterwards, the influences of mass ratio of TEAC to model anthracene oil (MO), stirring time, extraction temperature and initial concentration on the separation effect of carbazole were investigated. Under the optimized conditions (25℃, 25 min, mass ratio 1:5), the extraction efficiency (EE), distribution coefficient (DI) and selectivity (SE) of carbazole could reach up to 91.25 %, 24.26 and 66.09 %, respectively. The purity and yield of carbazole product separated from model anthracene oil were 91.02 % and 76.89 %, respectively. Moreover, carbazole with purity of 90.42 % could be separated from real crude anthracene with TEAC under the above optimized conditions. In addition, environment friendly water was used to regenerate the TEAC. After recycled for five times, the extraction ability of TEAC for carbazole did not change obviously. Finally, the hydrogen bond (N H…Cl) and van der Waals interaction (C H…π) existed between QASs and carbazole were revealed by FT-IR analysis and quantum calculations. The green and novel method presented in this work has implications for the separation of other high value-added products from coal tar.
研究领域:
化学工程
·
环境科学
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DOI
高影响因子
Molecular Catalysis
·
2020
·
IF 3.687
Yangyang Fang,Jun Li,Na Sheng,Xiaozhong Wang,Di Chen,Menglu Cai,Yu An,Yingqi Chen,Liyan Dai
A series of MoW-doped MCM-41 catalysts were prepared for the selective oxidation of anthracene to high value-added anthraquinone. Although anthraquinone production has been progressively industrialized, the anthracene oxidation still faces the problems of poor solubility of reactants and low anthracene conversion, particularly when employing supported catalysts in solution media. We herein reported a challenging but crucial method for anthraquinone production by using anthracene, H 2 O 2 and Mo 1 W 2 -MCM-41 catalyst in HOAc under mild reaction conditions. In addition, experimental and theoretical results revealed that the synergistic effect between Mo, W and MCM-41 species contributes to an enchanced cataltic activity with conversion up to 97.6 %. The highly active H 2 O 2 -MCM-41 catalyst can be used for several cycles without obvious activity loss and serve as a promising candidate for anthraquinone as well as its derivatives production, making it a good alternative for various oxidation reactions.
研究领域:
化学工程
·
催化材料科学
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2014
·
IF 4.086
Shan Liu,Maochao Wei,Xiangli Zheng,Shuai Xu,Fangquan Xia,Changli Zhou
In the paper, a novel and sensitive electrochemical sensor based on modification of electroactive alizarin red S functionalized mesoporous silica material SBA15 onto glassy carbon electrode (ARS-SBA15/GCE) was developed. Alizarin red S , called electrochemical probe that can selectively recognize polycyclic aromatic hydrocarbons (PAHs), as tools for the detection of tricyclic aromatic hydrocarbon anthracene. The morphology and interface property of ARS modified SBA15 (ARS-SBA15) were examined by transmission electron microscopy (TEM) and fourier transform infrared spectroscopy (FTIR). Taking advantage of the π-π stacking force between alizarin red S and anthracene, the ARS-SBA15/GCE sensor could detect anthracene quantitatively in a wide range of 1.0 pM–10.0 nM and a low detection limit of 0.5 pM (S/N = 3). Other PAHs, such as naphthalene, phenanthrene, pyrene, and benzo[a]pyrene show little interference on the detection. Consequently, a simple and sensitive electrochemical method was proposed for the determination of anthracene, which can be used to determine anthracene in waste water samples. The electrochemical method provides a general tool that complements the commonly used spectroscopic methods and immune method for the detection of PAHs.
研究领域:
分析化学
·
环境科学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2021
·
IF 6.165
Lan Yi,Jie Feng,Mario Gauthier,Wen-Ying Li
Anthracene (AN) is an important fine chemical feedstock, mainly derived from the anthracene oil fraction of high-temperature coal tar. The traditional solvent crystallization method used to obtain anthracene involves large amounts of solvents. A method with a high separation capacity and a high selectivity needs to be developed urgently. To this end, the composition of crude AN oil and the solubility of its main components in xylene were determined, and phenanthrene in crude AN oil was extracted with xylene. Pure deep eutectic solvents (DESs) and DESs–organic solvent mixture were then applied to separate anthracene and carbazole, respectively. Based on the distribution coefficient, selectivity, and purity of the AN product, the influence of organic solvent type, the molar ratio of DESs to organic solvent, and DESs type on the separation efficiency were investigated. Finally, the separation mechanism was investigated with density functional theory calculations and UV–visible spectroscopy. The results show that the phenanthrene content decreased from 25.5% to 2.6% and most of other condensed aromatics in crude AN were removed after washing twice with xylene. DESs–organic solvent mixtures had better performance than pure DESs for the separation of anthracene and carbazole, and under optimal condition, the 97.5% purity of AN is acquired in a single separation step with a tetraethyl ammonium chloride–glycerol DESs–DMF mixture. The more complicated interactions between phenanthrene and xylene than between anthracene / carbazole and xylene favored the removal of phenanthrene. The hydrogen bond with the minimum bond energy (-17.6 kJ/mol) between DESs and carbazole is also stronger than that with the maximum bond energy (-16.8 kJ/mol) between DESs and anthracene. Adding DESs to organic solvent can enhance the interactions between carbazole and the solvent, but had no significantly influence on interactions between anthracene and the solvent, thereby facilitating the separation of anthracene and carbazole.
研究领域:
化学工程
·
材料科学
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DOI
高影响因子
INORGANICA CHIMICA ACTA
·
2021
·
IF 2.545
Yiwen Yao,Feifei Xing,Shourong Zhu
The [2 + 2] condensation between 1,8-dihydroxyanthraquinone diester and 1,3-diamino-2-propanol in ethanol affords pseudocalixarene macrocyclic L2 in high yield. Heating L2 to 200 °C in DMSO can generate much smaller [1 + 1] macrocycle L1 . Crystal structure of L1 shows that all non-hydrogen atoms are coplanar except one carbon from 1,3-diamino-2-propanol. L1 is quite inert, but L2 can interact with alkaline, alkaline-earth, as well as Zn 2+ , Cu 2+ , Fe 3+ and Al 3+ cation (chloride) evidenced by their CV and 1 H NMR. With a L2 :M (1:2), there are discernable UV–vis spectrum/ 1 H NMR changes in the presence Cu 2+ , Fe 3+ , Al 3+ . Anion plays a key role in the cation binding process as the chromogenic response to Li + , Na + , K + , Ba 2+ and TBA + hydroxide. L2 forms 1:1 complex with TBAOH and 2:3 complex with NaOH, KOH, Ba(OH) 2 in DMSO. L2 reacts with LiOH in 1:4 stoichiometric and is one of the highest lithium loading ligand. The reaction is second-order with t 1/2 ~ 30 min for 0.25 mM L2 in the presence of 4.0 eq. LiOH. Besides hydroxide, L2 can interact with TBAF to form 1:1 host–guest complexes evidenced by their color and NMR change. With bulky cation, TBAOH shifts E p(II) more negative, while other cations shift E p(II) to positive. L2 is an ion pair acceptor that binds hydroxide and fluoride salt chromogenic.
研究领域:
化学
·
材料科学
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DOI
高影响因子
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