ENVIRONMENT INTERNATIONAL
·
2025
·
IF 9.7
Zirui Liu,Dehua Ma,Qiang Cheng,Aroob Abid,Shuaijie Zhao,Chenyi Li,Qingzhuo Niu,Min Zheng
p- Benzoquinone analogues, a class of ubiquitous oxidation byproducts, are increasingly detected in effluents from various oxidative treatment systems. While halogenated derivatives have received substantial research attention, the ecotoxicological impacts of non-halogenated analogues—particularly in vivo —remain poorly characterized. This study systematically compared the toxicity of 2,6-dichloro- p -benzoquinone (2,6-DCBQ) and 2,6-dimethyl- p -benzoquinone (2,6-DMBQ) using zebrafish embryos. 2,6-DMBQ exhibited comparable lethality to 2,6-DCBQ (48 h EC 50 = 221.72 vs. 169.17 μg/L), with developmental malformations of cardiac edema and notochord malformation mainly emerging in juvenile fish at 250 μg/L. Exposure to 2,6-DCBQ of 2.5 μg/L and 2,6-DMBQ of 25 μg/L induced significant oxidative stress, elevating reactive oxygen species (ROS) levels and upregulating antioxidant enzymes of total superoxide dismutase, catalase, and glutathione peroxidase. PCR gene chip analysis showed that 23 oxidative stress-related genes were coordinately upregulated in both treatment groups. Co-exposure with N-acetylcysteine (20 μM) or Na 2 SO 3 (Na 2 SO 3 : p -BQs = 10:1) synergistically mitigated toxicity of 2,6-DCBQ and 2,6-DMBQ at 250 μg/L, restoring morphological and biochemical endpoints to control levels. Electron paramagnetic resonance confirmed semiquinone radicals and hydroxyl radicals as key drivers of ROS amplification. These findings establish radical-mediated mechanisms as critical toxicological pathways and inform risk management strategies for quinoid byproducts in water treatment systems.
研究领域:
环境毒理学
·
水处理化学
·
分子生态毒理学
·
发育毒理学
·
自由基生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2019
·Vol. 166
·期 15
·H777
·
IF 3.12
Wenwen Xu,Yonghong Sun,Cuimin Shao,Jianguo Wang
ATP, ADP, and cytidine triphosphate (CTP) are common sources of energy for various cellular activities. Therefore, a method that efficiently measures ATP, ADP, and CTP levels is urgently needed. In unbuffered solution, ATP, ADP, and CTP were observed to cause a new cathodic peak at a positive potential during benzoquinone (BQ) reduction. The hydrolysis of ATP, ADP, and CTP generated additional proton donors, which provided numerous protons for the reduction of BQ and formation of a large new cathodic peak. The peak current difference between the peaks caused by ATP, ADP, and CTP before and after hydrolysis was linear to the ATP, ADP, and CTP concentrations but independent of the BQ concentration. An electrochemical method for the detection of ATP, ADP, and CTP was developed using a bare glassy carbon electrode. The proposed method showed good selectivity for the detection of ATP samples.
研究领域:
生物化学
·
分析化学
✓ 已验证
产品关联
DOI
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
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Energy & Environmental Science
·
2024
·
IF 32.4
Lu Lin,Zhiqing Xue,Tong Qiu,Jiaqi Zhu,Guoli Zhang,Hongtu Zhan,Kuo Wang,Xiaoqi Sun
Small-molecule quinones are promising cathode materials for aqueous zinc batteries with high theoretical capacity and desirable voltage. However, they usually exhibit high solubility in aqueous electrolytes, resulting in the loss of active material and a short cycle life. An efficient solution is to introduce linkages for benzoquinones (BQs) to enlarge molecular size; nevertheless, at the same time this adds dead weight, and the usually extended conjugation leads to the decreased redox potential of carbonyl groups. Herein, we present a phenyl cross-linked tri-p-benzoquinone (Ph-tri-BQ) cathode material for aqueous zinc batteries. Its solubility is greatly reduced to below 0.002% of the solubility for BQ. Besides, the weak electron-donation property and weight of the phenyl linkage are further shared by three BQs. Therefore, Ph-tri-BQ achieves a high capacity of 402 mA h g−1 with a 1.03 V discharge voltage plateau at 0.2 A g−1. Upon a 500 times increase in current density to 100 A g−1, the cathode still retains 221 mA h g−1 capacity at 0.91 V discharge voltage together with an ultra-long lifespan of 150 000 cycles. The energy storage mechanism is identified as the redox reactions on carbonyl sites with Zn2+/H+ co-storage.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
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
·
电化学
·
材料科学
✓ 已验证
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
✓ 已验证
DOI
高影响因子
Frontiers in Microbiology
·
2021
·
IF 5.64
Fan Qiuxia,Liu Cheng,Gao Zhenpeng,Hu Zhongqiu,Wang Zhouli,Xiao Jianbo,Yuan Yahong,Yue Tianli
Alicyclobacillus acidoterrestris (A. acidoterrestris), a spore-forming bacterium, has become a main challenge and concern for the juices and acid beverage industry across the world due to its thermo-acidophilic characteristic. Thymoquinone (TQ) is one of the active components derived from Nigella sativa seeds. The objective of this study was to investigate antibacterial activity and associated molecular mechanism of TQ against A. acidoterrestris vegetative cells, and to evaluate effects of TQ on A. acidoterrestris spores and biofilms formed on polystyrene and stainless steel surfaces. Minimum inhibitory concentrations of TQ against five tested A. acidoterrestris strains ranged from 32 to 64 μg/mL. TQ could destroy bacterial cell morphology and membrane integrity in a concentration-dependent manner. Field-emission scanning electron microscopy observation showed that TQ caused abnormal morphology of spores and thus exerted a killing effect on spores. Moreover, TQ was effective in inactivating and removing A. acidoterrestris mature biofilms. These findings indicated that TQ is promising as a new alternative to control A. acidoterrestris and thereby reduce associated contamination and deterioration in the juice and acid beverage industry.
研究领域:
食品科学
·
微生物学
✓ 已验证
DOI
PubMed
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Yang Liu,Zejun Zhang,Yushu Li,Fan Shi,Yijing Ai,Baoli Wang,Siyue Zhang,Xiaoping Zhang,Wei Sun
An electrochemical sensor based on marine biomass shrimp shell-derived porous carbon (SSPC) modified glassy carbon electrode (GCE) was developed for the detection of hydroquinone (HQ) in this paper. The resultant SSPC was characterized by different methods including scanning electron microscopy and Fourier transform infrared spectroscopy. Brunauer-Emmett-Teller method was used to evaluate the pore structure and surface area of SSPC. The electrochemical behaviors of SSPC/GCE were explored by cyclic voltammetry and differential pulse voltammetry. The SSPC/GCE demonstrated linear response ranges of 5.0–25.0 μM and 25.0–1200.0 μM for HQ analysis with the limit of detection as 0.18 μM (S/N = 3). Additionally, the method had been successfully applied to determine HQ in real lake water sample, which provided potential applications in further sensing study.
研究领域:
材料科学
·
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Chen Zhong,He Zhao,Hongbin Cao,Ching-Hua Huang
Halobenzoquinones (HBQs), a metabolism of pentachlorophenol, arouse increasing concern for their high toxicity. This paper systematically studied the influences of 31 extracellular nucleophiles on the removal of dichlorobenzoquinones (DCBQs). The results showed that at pH 6.0–8.0, the transformation of DCBQs followed a pattern of pseudo first-order reaction. With the presence of different thiol compound (ratio 1:1), the apparent rate constant of 25DCBQ and 26DCBQ was between 0.028 and 0.204 min −1 and 0.061–0.156 min −1 , respectively, which was 6.6–48.3 times faster than direct hydrolysis and 1.9–23.4 times of that with histidine, a typical amino acid. This was attributed to the different transformation pathways of DCBQs with thiol or amino groups. According to the MS spectrum and transition state theory, thiol compounds was stably incorporated into DCBQs via Michael addition or substitution, which also decreased the oxidative stress of DCBQs by 35.5–86.4% and cytotoxicity of hydrolyzed DCBQ by 44.9–100%, respectively. Conversely, amino acids promoted the hydrolysis of DCBQs by forming unstable AA-DCBQ intermediates that can be further hydrolyzed to OH-DCBQs, leading to an increased selectivity of OH-DCBQs, and increased the oxidative stress of 25DCBQs by 0.2–31.2% and cytotoxicity of hydrolyzed 25DCBQ by 42.0–52.7%. Such difference was inherently related to the nucleophilicity of different atoms. Moreover, it was revealed that the maximum condensed local nucleophilicity index of nucleophiles ( N k, max ) can joint describe the relationship among nucleophilic structures, transformation pathways and toxicity of DCBQs. This paper provided a comprehensive perspective on the fast removal and detoxification of HBQs in extracellular environment.
研究领域:
环境化学
·
毒理学
·
有机化学
✓ 已验证
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2016
·
IF 4.712
Xi Dai,Zhi-Fang Du,Li-Hong Wang,Jun-Ying Miao,Bao-Xiang Zhao
We have designed and synthesized a simple but effective fluorescent probe for sensing glutathione (GSH) by PET process based on coumarin and quinone , which worked as fluorophore and reaction site, respectively. The probe could discriminate GSH from cysteine and homocysteine within 1 min in PBS-buffered solution. The sensing mechanism was confirmed by density functional theory (DFT), viscosity test, fluorescence spectrum analysis and HRMS , respectively. The probe has a low limit of detection (0.1 μM) and finally been used in cell imaging successfully.
研究领域:
生物化学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xuan Yang,Xueqin Wang,Shenghao Xu,Beili Lu,Biao Huang,Xinyu Zheng,Guanfeng Lin
Hydroquinone (HQ) in wastewater is of great concern, as it is harmful to human health and threatens the ecological environment. However, the existing adsorbents have low adsorption capacity for HQ. To improve the removal of HQ, N,S-codoped activated carbon-ZIF-67 (NSAC-ZIF-67@C) was synthesized in this study by in situ growth of ZIF-67 on N,S-codoped activated carbon (NSAC) and carbonization. The influence of pH, contact time, and initial concentration on the adsorption behaviors of NSAC-ZIF-67@C on HQ were investigated. Owing to the synergistic effect of abundant active sites and well-developed pore structure, the NSAC-ZIF-67@C achieved a prominent adsorption capacity of 962 mg·g–1 and can still retain high adsorption performance after 5 cycles for HQ, which is superior to that of reported other adsorbents. HQ adsorption follows the pseudo-second-order kinetics model (R2 = 0.99999) and the Freundlich isotherm model. X-ray photoelectron spectroscopy (XPS) analysis before and after adsorption as well as density functional theory (DFT) calculation results showed that pyridinic-N-termini were conducive to the π–π interactions and hydrogen-bonding interactions. Therefore, the adsorption mechanisms of NSAC-ZIF-67@C on HQ involve pore filling, electrostatic attraction, π–π interaction, and hydrogen bonding. This study is expected to provide a reference for designing highly effective adsorbents for wastewater treatment.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2024
·
IF 7.7
Shi-Wen Lv,Jialu Pan,Xiaoran Wang,Yifan Shao,Yanqing Cong,Lin Che
It is of great significance to establish an effective method for removing Cr(VI) from wastewater. Herein, Fe-doped g-C 3 N 4 (namely Fe-g–C 3 N 4 –2) was synthesized and then employed as photocatalyst to conduct the test of Cr(VI) reduction. Notably, the embedding of Fe ion in g-C 3 N 4 can offer the Fe 2+ /Fe 3+ redox couples, so reducing the interfacial resistance of charge transfer and suppressing the recombination of photogenerated electrons and holes. The impurity energy levels will form in g-C 3 N 4 after the introduction of Fe ion , thereby boosting the light absorption capacity of catalyst. Thus, Fe-g–C 3 N 4 –2 showed good performance in photocatalytic Cr(VI) reduction, and the reduction efficiency of Cr(VI) can reach 39.9% within 40 min. Different with many previous studies, current work unexpectedly found that the addition of p -benzoquinone (BQ) can promote the Cr(VI) reduction, and the reduction efficiency of Cr(VI) over Fe-g–C 3 N 4 –2 was as high as 93.2% in the presence of BQ (1.5 mM). Further analyses showed that BQ can be reduced to hydroquinone (HQ) by photogenerated electrons, and UV light can also directly induce BQ to generate HQ by using H 2 O as the hydrogen donor . The HQ with reducing ability can accelerate the Cr(VI) reduction. In short, current work shared some novel insights into photocatalytic Cr(VI) reduction in the presence of BQ. Future research should consider possible reactions between photogenerated electrons and BQ. For the UV-induced photocatalysis , the suitability of BQ as the scavenger of O 2 •‒ must be given carefully consideration.
研究领域:
环境科学
·
材料科学
✓ 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）