CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lijuan Chen,Yaoyong Dong,Mengwei Han,Ting Song,Xuejun Zheng,Wenyuan He,Bei Long,Xiongwei Wu,Yong Pei,Xianyou Wang
MnOOH is regarded as a product of manganese-based materials after H + insertion. There is rare study on the Zn 2+ /H + storage capability of MnOOH. Herein, MnOOH nanofibers are prepared through a one-step hydrothermal method and developed as a promising cathode. The introduction of S doping changes the crystal structure of MnOOH and is conducive to its electronic/ionic transport and structural stability, proven by density functional theory calculations and various characterizations. The reduced Zn 2+ diffusion barrier of S-doped MnOOH leads to its increased Zn 2+ storage capability in the test of rate capability, especially at large current density. The Zn 2+ /H + insertion-type mechanism of MnOOH is revealed by ex situ XRD, Raman, XPS, and SEM tests. Therefore, this optimized material delivers a high reversible capacity of 178 mAh g −1 at 0.1 A g −1 , a good rate capability of 50 mAh g −1 at 3.0 A g −1 , and a long cyclic life with 108 mAh g −1 at 0.5 A g −1 over 500 cycles. Moreover, the electrode still shows satisfactory rate capability and cyclic life even at the high mass loadings of 10 and 15 mg cm −2 . This work proves the Zn 2+ /H + storage capability of MnOOH and its potential as a high-performance cathode in aqueous zinc ion battery.
研究领域:
材料科学
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电化学
·
能源存储
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高影响因子
JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY
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2025
·Vol. 39
·期 6
·e70303
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IF 2.8
Hongyu Zhang,Guoshun Lin,Yang Yang,Yifei Wang,Xiushuo Yang,Guige Hou,Zhenbo Wang,Qingguo Meng,Yun Hou
Hydroxytyrosol (HT), a primary phenolic compound in olive oil, exhibits antioxidant and antiapoptotic effects in various cell types, including cardiomyocytes and human umbilical vein endothelial cells. Contrastingly, bisphenol S (BPS) is known to induce apoptosis in myocardial and endothelial cells via oxidative stress. BPS increases reactive oxygen species (ROS) production and reduces the viability of hippocampal HT22 cells. In this study, we explored whether HT could protect neurons from BPS-induced oxidative stress and apoptosis. Our results showed that HT effectively inhibited oxidative stress responses in the brains of BPS-treated mice and significantly decreased ROS production in BPS-treated HT22 and PC12 cells. Additionally, HT reduced BPS-induced neuronal apoptosis in the cortical regions of mice as well as in HT22 and PC12 cells. Further analysis revealed that BPS activates the NF-κB signaling pathway, a key mediator of oxidative stress and neuronal apoptosis, while HT counteracted these effects. In summary, this study demonstrates the antioxidant and antiapoptotic properties of HT in BPS-exposed neurons. These findings provide compelling experimental evidence supporting the potential dietary inclusion of HT-rich compounds to alleviate oxidative stress-related neuronal damage. Summary HT showed neuroprotection in BPS-treated in mice, HT22 and PC12 cells. HT attenuates oxidative stress in BPS-treated in mice, HT22 and PC12 cells. HT inhibits NF-κB activity in BPS-treated in HT22 and PC12 cells.
研究领域:
神经生物学
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药理学
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毒理学
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Tingting Zhao,Jin Wang,Chenghui Du,Wenbin Li,Meiying Zhao,Rong Wang,Ying Xin,Kebin Zhou,Zhaoliang Zhang
Lithium–sulfur (Li–S) batteries are considered promising candidates for next-generation energy storage systems. Developing high-efficiency catalysts to improve kinetics and inhibit the shuttle effect is a challenging task. In this study, a three-dimensional (3D) (ZnCo)3S4–MoS2 heterostructure was constructed at the nanoscale and used as a decoration for the separator of durable Li–S batteries. Benefiting from the generation of the built-in electric field between 3D (ZnCo)3S4 and in situ grown MoS2 nanosheet, the rapid transport of ions and electrons and excellent polysulfide redox kinetics are observed in the (ZnCo)3S4–MoS2, which results in a smooth ″adsorption–diffusion–conversion″ process of polysulfides. The Zn dopant effectively reduces the work function of Co3S4 via an electron transfer from Zn to Co3S4, strengthening the built-in electric field. The battery equipped with the (ZnCo)3S4–MoS2 nanomaterial-modified separator delivers a high initial discharge capacity of 1180.5 mAh g–1 at 1 C conditions and a low attenuation rate of 0.054% after 1000 cycles. In addition, the battery also exhibits good cycling stability at a high sulfur loading of 3 mg·cm–2, maintaining a capacity of 704.4 mAh g–1 (84.9% capacity retention) after 200 cycles at 0.1 C. This study provides a promising strategy to design highly efficient catalysts for durable Li–S batteries.
研究领域:
材料科学
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能源存储技术
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DOI
高影响因子
SOLAR ENERGY
·
2021
·
IF 5.742
Ting Wang,Jiayong Zhang,Bin Yao,Yongfeng Li,Zhanhui Ding,Chunkai Wang,Jia Liu
Five types of Cu 2 ZnSn(S,Se) 4 (CZTSSe) films were fabricated by selenization of Cu 2 ZnSnS 4 (CZTS) precursor films preparing through Cu-Zn-Sn-S precursor solutions with nominal Cu + /(Cu + +Cu 2+ ) ratio of 0, 0.2, 0.4, 0.8 and 1. Five types of CZTSSe solar cells were prepared by using the five types of CZTSSe films as absorbers, respectively. The crystal quality and phase composition of the CZTS and CZTSSe films were characterized by XRD, Raman and SEM, and the photovoltaic performance for the CZTSSe solar cells were measured by J-V and EQE. It is found that the CZTS film consists of kesterite CZTS when the ratio is 0 and of kesterite CZTS together with a small amount of SnS when the ratio is 0.2 to 1. All of the CZTSSe films are comprised of kesterite CZTSSe and a small amount of Zn(S,Se). The crystal quality and lattice constants of the kesterite CZTSSe increase with increasing the ratio, while the amount of Zn(S,Se) decreases with increasing the ratio and almost to zero as the ratio is 1. The power conversion efficiency ( PCE ) of the CZTSSe solar cells increases from 5.47% to 8.43% as the ratio increases from 0 to 1, which is due to improvement in short-circuit current density ( J sc ) and filling factor ( FF ) and decrease in open circuit voltage deficit ( V oc , def ). The influence mechanism of the ratio on the PCE is suggested by analyzing effect of the ratio on electrical parameters of the CZTSSe solar cells.
研究领域:
光伏技术
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材料科学
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半导体薄膜
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太阳能电池技术
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Lu Chen,Li−Li Cui,Zizhun Wang,Xingquan He,Wei Zhang,Tewodros Asefa
Efficient, durable, nonprecious metal-based catalysts for electrochemical reactions involving oxygen are needed to advance the widespread use of fuel cells and Zn-air batteries. In this work, hybrid materials composed of bimetallic (Co and Fe) sulfide (Co8FeS8) nanoparticles supported on N,S-doped carbon microparticles that can serve as dual-function oxygen electrocatalysts are synthesized. The synthesis of the materials is performed by preparing and then pyrolyzing silica-protected Fe- and Co-modified, S-containing polyphthalocyanine at different temperatures. The materials are named (Fe,Co)SPPc-T-sp, where T denotes the pyrolysis temperature and sp represents the silica protection applied for their synthesis. Among them, the material synthesized at 900 °C, denoted (Fe,Co)SPPc-900-sp, shows superb electrocatalytic activities in an alkaline solution both toward the oxygen reduction reaction (ORR), with a half-wave potential (E1/2) of 0.830 V vs RHE, and toward the oxygen evolution reaction (OER), with a current density of 10 mA cm–2 at an overpotential (η10) of 353 mV. The catalytic activities of this material for both reactions are comparable with those of the respective benchmark, precious-metal-based catalysts, namely, Pt/C (20 wt %) and RuO2, respectively. An alkaline Zn-air battery assembled using (Fe,Co)SPPc-900-sp as an air electrode delivers a high peak power density (158.6 mW cm–2) and outstanding charge–discharge cycling stability (for over 50 h). These catalytic performances are better than those of the corresponding battery containing Pt/C and RuO2 electrocatalysts. This work also offers a facile synthetic strategy for the fabrication of robust, inexpensive dual-function electrocatalysts for Zn-air batteries.
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高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Xing Yu,Weiwei Zhang,Lu Liu,Yves Fautrelle,Xionggang Lu,Xi Li
The abundant mass and charge transfer involved in Faradaic redox reactions are largely determined by microstructures including the surface area and porosity, elemental composition and electrical conductivity of bimetallic sulfides. Here, a high magnetic field (HMF) was introduced to tune these intrinsic characters for superior supercapacitor electrodes. We developed a novel HMF-controlled anion-exchange methodology to prepare the one-dimensional (1D) bunched Zn–Co–S yolk–shell balls (ZCS6T BYSBs). The HMF-induced directional growth and alignment of Zn0.76Co0.24S drive the directional 1D assembly. The as-obtained ZCS6T BYSBs possess larger surface area/pore volume, higher crystallinity and electrical conductivity, richer electroactive elements, and favorable axial electron and ion transport because of HMF-enhanced favorable ion diffusion and exchange kinetics. Flexible S, N codoped carbon nanotubes/graphene films embedded with the ZCS6T BYSBs (CZS6T/CNTs/SNGS) were fabricated by vacuum filtration and one-step S, N codoping and reduction of graphene oxides to improve structural stability and charge transport. The CZS6T/CNTs/SNGS electrode displayed impressive enhanced specific capacitance and rate capability with 78.7% capacitance retention at 30 A g–1. Furthermore, the CZS6T/CNTs/SNGS//CNTs/SNGS asymmetric supercapacitor delivered remarkable cycling stability with a high energy density of 41.1 W h kg–1 at a large power density of 9022 W kg–1.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yubo Hu,Yuxiang Liu,Jun Wu,Yuda Li,Jiaxing Jiang,Feng Wang
Most of the traditional polymeric photocatalysts are generally insoluble in organic solvents, which might exclude their compatibility with large-area processing technology. Herein, we have synthesized a novel quaternized ammonium conjugated polyelectrolyte (PSO-FNBr) that can be processed to prepare an active film by a drop-casting method. PSO-FNBr shows a remarkably enhanced hydrogen evolution rate (HER) of 20.5 mmol h–1 g–1 in the thin film form in comparison to that of the powder form. Furthermore, we prepared a new type of thin film-based photocatalytic device, which provided a rare example of a “three-in-one” (rapid sampling + easy-to-use + cost-effective) photocatalytic system. The PSO-FNBr thin film over the Pt substrate can maintain a competitive HER, even though the Pt substrate was recycled and reused 50 times. Considering the features of impressive activity and low cost, we believe that PSO-FNBr will be a promising material for potential application in photocatalysis.
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DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
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2016
·
IF 3.035
Hang Yang,Guangying Hou,Li Zhang,Lei Ju,Chunguang Liu
Sewage sludge , as a very significant sources of BPS (up to 523 mg/kg dw) introduction into the environment, must be handled properly. Therefore, it is important to access BPS removal and its effect on sludge treatment with the biological treatment. However, it is unclear for its effect on the hydrolysis of sludge. In this research, impact of BPS on sludge hydrolysis by α-Amylase is studied from the respect of component of soluble organic matter in sludge using three-dimensional fluorescence spectra . Enzyme activity assay suggests that sludge hydrolysis is inhibited due to the denaturation of α-Amylase with BPS exposure. In order to illuminate the interaction mechanism between BPS and α-Amylase, UV–vis, steady-state fluorescence, circular dichroism , synchronous fluorescence, light scattering spectra, enzyme activity assay and molecule docking techniques are applied. Results show that BPS interacts with α-Amylase by hydrophobic bond in the activity region of α-Amylase. This interaction not only causes an unfolding skeleton structure of α-Amylase and a less hydrophobic microenvironment of tyrosine and tryptophan residues, but also leads to a specific fluorophore quenching involving static and dynamic type. This work provides direct evidence about enzyme toxicity of BPS and establishes a new strategy to investigate the interaction between protein and BPS at a molecular level, which is helpful for clarifying the bioactivities of BPS.
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DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Kanglin Yu,Yuanyuan Xiao,Shiqi Hu,Xufan Zheng,Bowen Gao,Jingjing Xu,Zongzhe Li,Ruike Zhou,Yaowen Hu,Qingliang You,Biao Xiao,Renqiang Yang
Quantum dot (QD) based luminescent solar concentrator-organic photovoltaic (LSC-OPV) systems demonstrate significant potential in applications including building-integrated photovoltaics (BIPV). In this study, eco-friendly Ag–In–S/Zn–S QDs with a high photoluminescence quantum yield (PLQY = 73 %) are synthesized using a simple hydrothermal method. The influence of Zn-S precursor reactivity on QD properties is studied. The synthesized QDs exhibit excellent stability over a wide temperature range (90–360 K). The Ag–In–S/Zn–S LSCs maintain over 90 % of their initial PLQY after a two-month exposure to natural sunlight. Additionally, the power conversion efficiency (PCE) of the fabricated LSC-OPV system reaches 1.00 % under near-actual condition (9 mW cm −2 ). Moreover, when the irradiation intensity is further decreased to 0.4 mW cm −2 , the LSC-OPV system shows a PCE as high as 5.27 %, demonstrating that the LSC-OPV system can operate efficiently at low illumination intensities. Notably, the fabricated LSCs have minimal impact on the incident sunlight spectrum, making them suitable for BIPV applications. Thus, this study is a first that is known to report the integration of eco-friendly QD-based LSCs with organic photovoltaic cells, which positively contributes to the advancement of BIPV.
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高影响因子
Carbon Energy
·
2024
·
IF 19.5
Shengnan He,Hui Wu,Shuang Li,Ke Liu,Yaxiong Yang,Hongge Pan,Xuebin Yu
SnO 2 has been extensively investigated as an anode material for sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) due to its high Na/K storage capacity, high abundance, and low toxicity. However, the sluggish reaction kinetics, low electronic conductivity, and large volume changes during charge and discharge hinder the practical applications of SnO 2 -based electrodes for SIBs and PIBs. Engineering rational structures with fast charge/ion transfer and robust stability is important to overcoming these challenges. Herein, S-doped SnO 2 (S–SnO 2 ) quantum dots (QDs) (≈3 nm) encapsulated in an N, S codoped carbon fiber networks (S–SnO 2 –CFN) are rationally fabricated using a sequential freeze-drying, calcination, and S-doping strategy. Experimental analysis and density functional theory calculations reveal that the integration of S–SnO 2 QDs with N, S codoped carbon fiber network remarkably decreases the adsorption energies of Na/K atoms in the interlayer of SnO 2 –CFN, and the S doping can increase the conductivity of SnO 2 , thereby enhancing the ion transfer kinetics. The synergistic interaction between S–SnO 2 QDs and N, S codoped carbon fiber network results in a composite with fast Na + /K + storage and extraordinary long-term cyclability. Specifically, the S–SnO 2 –CFN delivers high rate capacities of 141.0 mAh g −1 at 20 A g −1 in SIBs and 102.8 mAh g −1 at 10 A g −1 in PIBs. Impressively, it delivers ultra-stable sodium storage up to 10,000 cycles at 5 A g −1 and potassium storage up to 5000 cycles at 2 A g −1 . This study provides insights into constructing metal oxide-based carbon fiber network structures for high-performance electrochemical energy storage and conversion devices.
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高影响因子
Plants-Basel
·
2021
·Vol. 10
·期 7
·1309
·
IF 3.935
Xiaoyue Yu,Hanwen Wu,Jianping Zhang,Yongjie Yang,Wei Tang,Yongliang Lu
Polypogon fugaxis a common winter weed in China and other Asia countries. We have previously found aP. fugaxbiotype (R) resistant to acetyl co-enzyme A carboxylase (ACCase) herbicides also cannot be effectively controlled by some acetolactate synthase (ALS) herbicides. This study evaluated the level of resistance to four ALS herbicides (metsulfuron-methyl, chlorsulfuron, monosulfuron, pyribambenz isopropyl) in the R biotype and the associated resistance mechanism. The R biotype exhibited moderate level of resistance to metsulfuron-methyl (6.0-fold) compared with the sensitive biotype (S). Sequence analysis ofALSgene revealed that twoALSgenes existed inP. fugax. However, no substitution associated with ALS resistance mechanism were found inALSgenes between the S and R biotypes. The activity of ALS enzyme isolated from the R biotype was inherently higher and less sensitive to metsulfuron-methyl than the S biotype. Glutathione S-transferases (GST) activity was also less sensitive to metsulfuron-methyl in the R than as the S biotypes. Malathion, a cytochrome P450 (CYP) monooxygenase inhibitor, had much greater synergistic effect with metsulfuron-methyl on the R than as the S plants, reducing the ED50value (herbicide dose to inhibit growth by 50%) of metsulfuron-methyl by 23- and 6-fold, respectively, suggesting that CYP mediated enhanced metabolism might contribute to the resistance to ALS herbicides. These results suggest that metsulfuron-methyl resistance in the R biotype was associated with the up-regulated ALS enzymatic activity and the GST and CYP-mediated enhanced herbicide metabolism.Keywords:metsulfuron-methyl;ALS enzyme activity;Polypogon fugax;glutathione S-transferases;cytochrome P450
研究领域:
植物学
·
分子生物学
·
农业科学
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Xingrui Tong,Jinling Bao,Danfeng Chang,Dapeng Wang,Haibo Chang,Liquan Jing
Designing an efficient hole–electron separation method is essential to improving the photocatalytic efficiency of photocatalysts. Herein, we constructed a 3D MoS2/MgIn2S4 S-scheme heterojunction material using a solvothermal method. The built-in electric field formed by the interaction between MoS2 and MgIn2S4 promoted the separation of electrons and holes, significantly improving the photocatalytic activity of 3D MoS2/MgIn2S4. The 3% MoS2/MgIn2S4 composite photocatalyst successfully achieved a 100% reduction of Cr(VI) within 90 min and demonstrated good hydrogen production efficiency without using a sacrificial agent. Theoretical calculations confirmed the formation of S-scheme heterojunctions. Malondialdehyde and dehydrogenase tests showed that the Cr(VI) solution after reduction was not harmful to plant growth. Furthermore, we systematically investigated the effects of different Cr(VI) concentrations, catalyst dosages, ions, pH values, and organic acids on photocatalytic efficiency. The design of the S-scheme heterojunction photocatalysts provided a promising strategy for the photoreduction of Cr(VI).
研究领域:
环境科学
·
材料科学
·
化学工程
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DOI
高影响因子
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