WATER RESEARCH
·
2017
·
IF 6.942
Dehua Xia,Yan Li,Guocheng Huang,Ran Yin,Taicheng An,Guiying Li,Huijun Zhao,Anhuai Lu,Po Keung Wong
This study introduces natural occurring magnetic pyrrhotite (NP) as an environmentally friendly, easy available, and cost-effective alternative catalyst to activate persulfate (PS) of controlling microbial water contaminants. The E. coli K-12 inactivation kinetics observed in batch experiments was well described with first-order reaction. The optimum inactivation rate ( k = 0.47 log/min) attained at a NP dose of 1 g/L and a PS dose of 1 mM, corresponding to total inactivation of 7 log 10 cfu/mL cells within 15 min. Measured k increased > 2-fold when temperature increased from 20 to 50 °C; and > 4-fold when pH decreased from 9 to 3. Aerobic conditions were more beneficial to cell inactivation than anaerobic conditions due to more reactive oxygen species (ROS) generated. ROS responsible for the inactivation were identified to be SO 4 − > OH > H 2 O 2 based on a positive scavenging test and in situ ROS determination. In situ characterization suggested that PS effectively bind to NP surface was likely to form charge transfer complex (≡Fe(II)⋯O 3 SO OSO 3 - ), which mediated ROS generation and E. coli K-12 oxidation. The increased cell-envelope lesions consequently aggravated intracellular protein depletion and genome damage to cause definite bacterial death. The NP still maintained good physiochemical structure and stable activity even after 4 cycle. Moreover, NP/PS system also exhibited good E. coli K-12 inactivation efficiency in authentic water matrices like surface water and effluents of secondary wastewater.
研究领域:
环境科学
·
微生物学
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DOI
PubMed
高影响因子
Small
·
2022
·Vol. 19
·期 14
·2206895
·
IF 15.153
Yujing Liu,Qi Liu,Xiaohui Liu,Chengyao Zhao,Ruizhi Su,Xinwei Luo,Zhongqiu Liu,Anguo Ying
Pore-structure design with the sophisticated and pragmatic nanostructures still remains a great challenge. In this work, porous carbon with Russian-doll-like pores rather than traditional single modal is fabricated via a boiling carbonization approach, accompanied by K + -pre-intercalation. The most important internal factor is that alkali can penetrate into the stereoscopic space of layered Malonic acid dihydrazide and the confinement effect leads to the in-depth development of different dimensional pore structures. The oxygenated and nitrogenated surface guarantees the K + intercalation behavior. Benefiting from their open framework and enlarged interlayer spacing, K + -pre-intercalated porous carbon with Russian-doll-like pores (denoted as KPCRPs) as anode material exhibits promising potassium storage performance. The assembled KPCRP//activated carbon potassium-ion hybrid supercapacitor in 30 m CH 3 COOK displays a high energy density of 157.29 Wh kg −1 , an ultrahigh power output of 14 kW kg −1 , and a long cycling life (99.58% capacity retention after 10000 cycles), highlighting the superiority of Russian-doll-like pore structure. This work sheds light on the designing of 3D pores structure, especially for multimodal pore architectures.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Xinzi Zhong,Liyun Cao,Tian Ji,Jianfeng Huang,Yijun Liu,Xuetao Shen,Yong Zhao,Zhiwen Cheng,Ting Liu
Antioxidant SiO 2 coating exhibits low cost and great compatibility with existing uses, but is strongly limited by its poor fluidity and high oxygen permeability from 973 K to 1273 K. Therefore, the hierarchical-design Glass/MoSi 2 -B 2 O 3 @SiO 2 -SiC coating was fabricated on C/C composite by a simple embedding method, and followed by a hot dip process. This composite yielded excellent combination of long-term antioxidant abilities and thermal shock resistances. As oxidized at 973 K for 1500 h, its mass loss was 0.35 %, and only 0.66 % at 1073 K for 2600 h. After thermal shocks 270 times, the weight loss was only 0.56 %. Interestingly, the Glass/MoSi 2 coating acted as a self-healing encapsulation shelter against oxygen, whilst the B 2 O 3 @SiO 2 layer yielded stable healing effect. The B 2 O 3 @SiO 2 microcapsule facilitated the activation of B 2 O 3 , SiO 2 phases, and borosilicate glass sequentially as temperature rose, leveraging their unique advantages in defect healing. Through the synergistic effects of interface encapsulation and defect self-healing, the oxygen kept osmotic diffusion. This study underscores the significance of hierarchical designs in coatings, facilitating structure optimizations and enhancing antioxidant capabilities at multiple levels.
研究领域:
材料科学
·
涂层技术
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产品关联
DOI
高影响因子
FLUID PHASE EQUILIBRIA
·
2025
·
IF 2.7
Tao Jia,Jinpeng Yang,Jia Yu
Knowledge of the accurate pρTx behavior of hydrocarbon mixtures at different temperatures and pressures is indispensable for simulating reservoir behavior, optimizing recovery processes, and predicting the thermodynamic properties. The compressed liquid densities of n -pentane(1) + n -decane(2) binary mixtures with mole fraction x 1 = 0.1024, 0.2978, 0.5145, 0.7036, and 0.9113 were measured using a vibrating tube densimeter at temperatures from 283 K to 363 K, and pressures up to 100 MPa. The relative uncertainty for density measurement of n -pentane + n -decane binary mixtures of 0.99 mole fraction purity is 0.1%. The densities of binary mixtures were correlated with the modified Tait equation, and the absolute average deviations of the experimental and calculated values were 0.005%, 0.005%, 0.006%, 0.008%, and 0.009%, respectively. In addition, the isothermal compressibility, the isobaric thermal expansivity, and excess molar volume were calculated from experimental densities.
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2021
·
IF 6.165
Jiao Sha,Xiaoqing Yang,Lin Ji,Zidan Cao,Huimin Niu,Yameng Wan,Renren Sun,Haixia He,Gaoliang Jiang,Yu Li,Tao Li,Baozeng Ren
By means of the laser dynamic method, the saturation solubility of benflumetol (BFL) in four binary mixtures ((ethyl acetate (EAC), n-propyl acetate (NPAC), n-butyl acetate (NBAC) and n-amyl acetate (NAAC)) + methanol (MtOH)) was achieved at temperatures from 278.15 K to 323.15 K and ambient pressure ( p = 0.1 MPa). The solubility values (mole fraction) of BFL in above four binary mixed solvents increased as temperature elevated and obeyed the decreasing tendency with the decrease of the mass fraction of the positive solvent (EAC, NPAC, NBAC and NAAC) at a certain temperature. The Hansen solubility parameter provided a reasonable interpretation for the BFL solubility in 4 binary solvent mixtures . Then, the analysis of intermolecular interactions of solute and binary mixed solvents utilizing RDF obtained utilizing MD simulation show that the order of solute-solvent interactions and solvent-solvent interactions are both closely related to the order of the saturation solubility of BFL in binary mixed solvents researched. The saturation solubility of BFL gained through experiments was fitted by the use of five models namely modified Apelblat, λh, Jouyban-Acree, Ma and Sun. Correlation resulted that the modified Apelblat model and λh model gave much lower relative average deviations than the other models for the 4 binary mixed solvents researched. Finally, the derived apparent thermodynamic parameters (Δ sol G °, Δ sol H °, Δ sol S ° ζ H , ζ TS ) resulted in terms of the Van't Hoff equation show an entropy-driven, endothermic and spontaneous process of dissolution of BFL in chosen mixed solvents, and the main contribution of Δ sol G ° comes from the positive Δ sol H °.
研究领域:
化学工程
·
物理化学
·
药物化学
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2026
·
IF 2.4
Ya-Li Wang,Rui-Zhi Cui,Hong-Bao Ren,Qiu-Ye Yang,Wu Li
This study addresses the unclear crystallization behavior of rubidium in chlorobromine coexisting brine systems through experimental and simulation approaches. First, the phase equilibrium data of the ternary system RbCl–RbBr–H2O at 298.15 K were determined using the isothermal dissolution equilibrium method, and the corresponding phase diagram was constructed. The solid phase was characterized by XRD and SEM-EDS, and solubility was theoretically calculated and validated using the Pitzer model. To further elucidate the solid-solution formation behavior of rubidium in chlorobromine coexisting brine systems at the microscopic level, molecular dynamics simulations were performed. Combined with the previously reported phase diagrams of MCl–MBr–H2O systems (M = Li+, Na+, K+, NH4+), the radial distribution functions, coordination numbers, and mean square displacements of different systems were systematically analyzed to examine the differences in ionic hydration structures and migration behavior. From macroscopic phase equilibria to microscopic ion dynamics, this study systematically clarifies the common patterns of formation of continuous solid solutions in chlorobromine coexisting brine systems.
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DOI
高影响因子
FLUID PHASE EQUILIBRIA
·
2017
·
IF 2.473
Tao Jia,Shengshan Bi,Jiangtao Wu
Compressed liquid densities of n -decane + n -dodecane binary mixtures were measured with a vibrating-tube densimeter at temperatures from (283–363) K and pressures from (0.1–100) MPa over the whole range of composition . The binary mixtures n -decane (1) + n -dodecane (2) were prepared at mole fractions of ( x 1 = 0, 0.2297, 0.4436, 0.6433 0.7841, and 1.0), respectively. The experimental densities of binary mixtures were successfully correlated with the Tait-type equation, and the absolute average percentage deviations of the experimental and calculated values were 0.048%, 0.055%, 0.059%, 0.058%, 0.068%, and 0.052%, respectively. In addition, the excess molar volume was calculated for whole range of temperature, pressure and composition.
研究领域:
物理化学
·
热力学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2020
·
IF 2.888
Midong Shi,Wei Zeng,Shixian Song,Meiting Zhou,Wei Wang
Liquid-liquid equilibrium (LLE) data for {n-heptane + p-xylene (PX) + furfural/dimethyl sulfoxide (DMSO)} ternary systems were measured at 303.15 K and 323.15 K and atmospheric pressure. Extraction performance of furfural and DMSO were evaluated using distribution coefficient (D) and selectivity (S) according to the measured tie-line data. And the results showed that DMSO had better extraction performance than furfural for separation of n-heptane and PX. Both UNIQUAC and NRTL models were used to correlate the experimental LLE data, and relevant interaction parameters were obtained. Consistency between the measured LLE data and the calculated by these two models was well evaluated by RMSD and maximum absolute deviation. Moreover, reliability of binary interaction parameters was confirmed by topological analysis related to the Gibbs tangent plane test.
研究领域:
化学工程
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2021
·
IF 6.165
Mingcheng Li,Chunying Zhu,Taotao Fu,Youguang Ma
In this study, the densities and viscosities of the binary solutions 1-dimethylamino-2-propanol (1DMA2P) + H 2 O, benzylamine (BZA) + H 2 O, 1DMA2P + BZA and ternary solution 1DMA2P + BZA + H 2 O were measured at T = (298.15−333.15) K. Furthermore, the volumetric and the viscometric properties including the excess molar volume, partial molar volume, apparent molar volume, limiting apparent molar volume, viscosity deviation, excess Gibbs energy of activation for viscous fluid and Grunberg-Nissan interaction parameters were obtained in terms of experimental data, respectively. The excess molar volumes of binary and ternary solutions were fitted by the Redlich-Kister equation and Cibulka equation, besides, the viscosity and viscosity deviation of binary solution were correlated by using the Grunberg-Nissan equation and Redlich-Kister equation. Moreover, the intermolecular interactions were analyzed based on the volumetric and viscometric properties of solutions.
研究领域:
物理化学
·
热力学
✓ 已验证
产品关联
DOI
高影响因子
Frontiers of Chemical Science and Engineering
·
2022
·Vol. 16
·期 6
·996-1002
·
IF 4.803
Zhang Changgeng,Zhang Qi
Recent advances in novel electroactive devices have placed new requirements on material development. High-performance dielectric elastomers with good mechanical stretchability and high dielectric constant are under high demand. However, the current strategy for fabricating these materials suffers from high cost or low thermal stability, which greatly hinders large-scale industrial production. Herein, we have successfully developed a novel strategy for improving the dielectric constant of polymeric elastomers via deep eutectic solvent inclusion by taking advantage of the low cost, convenient and environmentally benign synthesis process and high ionic conductivity from deep eutectic solvents. The as-prepared composite elastomers showed good stretchability and a greatly enhanced dielectric constant with a negligible increase in dielectric dissipation. Moreover, we have proven the universality of our strategy by using different types of deep eutectic solvents. It is believed that low-cost, easy-synthesis and environmentally friendly deep eutectic solvents including composite elastomers are highly suitable for large-scale industrial production and can greatly broaden the application fields of dielectric elastomers.
研究领域:
材料科学
·
电活性设备
·
聚合物科学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2018
·Vol. 28
·期 29
·1801989
·
IF 13.325
Lei Liu,Yu Chen,Yihao Xie,Peng Tao,Qinyi Li,Chenglin Yan
Carbon-based materials are considered to be one of the most promising materials for negative electrodes of the future, because of their good chemical stability, high electrical conductivity, and environmental benignity. However, to date, the underlying principles of K-ion storage in carbonaceous anodes remain elusive, which greatly hinders the development of such a category of anodes. Herein, the ultrastable K-ion storage of carbonaceous anode through systematic analyses, including comprehensive electrochemical characterizations, kinetics calculations, and structural/compositional evolution mechanism studies, is theoretically elucidated and experimentally verified. Specifically, it is found that the uniquely envelope-like nitrogen-doped carbon nanosheets with high pseudocapacitive could bring ultrastable storage of potassium ions, delivering a high initial reversible capacity of 367 mAh g −1 at a current density of 50 mA g −1 and retain 70.5 and 75.6% at current densities of 500 and 1000 mA g −1 after 1000th cycle, respectively. This study could enlighten researchers on further progress in the field of carbonaceous K-ion battery negative electrode with a long cycle life.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2019
·
IF 9.518
Ting Ye,Heng Gao,Qingqing Zhang,Chenxiao Yan,Yali Yu,Yifan Fei,Longlong Gao,Xiaoshun Zhou,Yong Shao
Due to the high abundance of K + in environments and K + -induced high stability of G-quadruplex (G4), developing a selective G4-based fluorescent sensor for other metal ions with K + tolerance is a great challenge. Herein, we found that even in the presence of 15000-fold excess of K + , Ba 2+ exhibits a highly specific binding with a human telomeric G4 (htG4) in comparison with other G4-binding metal ions such as Pb 2+ and Sr 2+ . This specific binding event can be recognized by a natural fluorophore of hypericin with a lighting-up fluorescence response. Interestingly, inverting the polarity of the most 3' G in htG4 can sensitize the Ba 2+ response with the retaining Ba 2+ specificity and K + tolerance. This polarity inversion of htG4 causes a G4 conformation change in K + and the polarity-inverted htG4 tends to favorably dimerize in response to the Ba 2+ specific binding. To our knowledge, this is the first report that polarity inversion of G4 can be applied to construct a selective metal sensor with K + tolerance. Our findings will open a new way to conveniently regulate the G4 conformation and stability by polarity inversion towards developing high-performance sensors.
研究领域:
化学
·
材料科学
·
生物技术
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
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