JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2018
·
IF 2.196
Bing Jia,Liping Wang,Mengmeng Yan,Hai Liu,Yingmin Yu,Qingsong Li
Liquid–liquid equilibrium (LLE) data for ternary systems of water + 2,2,3,3-tetrafluoro-1-propanol + anisole/1-octanol were determined at temperatures of 298.2, 308.2, and 318.2 K under 101.3 kPa. The distribution coefficients and separation factors were calculated from experimental LLE data, which indicated that anisole/1-octanol extracted 2,2,3,3-tetrafluoro-1-propanol from aqueous solution with high efficiency. The consistency of the experimental LLE data was assessed by the Othmer–Tobias and Hand equations. Meanwhile, the NRTL and UNIQUAC models were successfully applied to regress and correlate the experimental data, presenting the root-mean-square deviations (RMSD) less than 1.0%. The relevant binary interaction parameters of these two models were also regressed.
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高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2022
·
IF 3.119
Renjie Xu,Ganbing Yao
The equilibrium solubility of 8-isoquinolinamine in methanol, ethanol, n-propanol, isopropanol, N,N-dimethylformamide (DMF), acetonitrile, acetone, propylene glycol (PG), ethylene glycol (EG), and water, and aqueous mixtures of methanol/ethanol/n-propanol/isopropanol plus water was experimentally measured by the isothermal saturation method at 278.15–323.15 K under 101.2 kPa. The mole fractions of 8-isoquinolinamine in monosolvents were obtained to be maximum in neat DMF. For the four binary mixed solvent systems, the amount of 8-isoquinolinamine dissolved in n-propanol + water is more than that in the other three systems. The mole fractions of 8-isoquinolinamine in pure solvents were correlated using the Apelblat model, van’t Hoff model, and Wilson model, and the calculated value of the Apelblat model was the closest to the experimental value. The Jouyban–Acree model, modified Apelblat–Jouyban–Acree model, and van’t Hoff–Jouyban–Acree model were applied to calculate the solubility of 8-isoquinolinamine in the four solvent mixtures. The feedback obtained by comparing the experimental data with the calculated data is that the calculated data from the Jouyban–Acree model was relatively close to the experimental results. Solvent effects as a powerful tool can be used to estimate interactions at the molecular level, and the results showed that solvent–solvent intermolecular interactions contribute to dissolution. van’t Hoff plots are adopted as a method to show the relationship between ln(x) and 1/T.
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高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2020
·
IF 2.369
Lili Zhang,Yingmin Yu,Zhaohui Liao,Xiaosheng Xu,Xin Huang,Bing Jia,Qingsong Li
Liquid–liquid equilibrium data (LLE) of ternary systems {water + 1-butanol + 1-hexanol} and {water + 1-butanol + 1-octanol} were investigated at 303.15, 313.15, and 323.15 K at 101.3 kPa. The distribution coefficient (D) and selectivity factor (S) were calculated from experimental LLE data. Meanwhile, the effect of temperature on the two-phase zone of the two systems was discussed. The nonrandom two liquid and universal quasi-chemical activity coefficient models were used to regress experimental data sets and generate the relevant binary interaction parameters. Both thermodynamic models provided similar good descriptions for the studied systems with root mean square deviations between the calculated and experimental values less than 0.3%.
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高影响因子
CHEMOSPHERE
·
2019
·
IF 5.108
Nannan He,Shihai Cao,Lihao Zhang,Zhidan Tian,Huan Chen,Fang Jiang
The porous graphitic carbon nitride nanosheets (PCNSs) with high yields were synthesized by using one–step chemical exfoliation method. PCNSs accelerated separation efficiency of photo-generated electron−hole pairs in comparison to bulk graphitic carbon nitride. The PCNS5 (exfoliation for 5 h) exhibited optimal photocatalytic disinfection capability towards Escherichia coli K-12 under simulated solar light irradiation with complete disinfection of 6.5 log 10 cfu/mL of E. coil K-12 within 2 h. The enhanced photocatalytic activity of PCNS5 originated from mesoporous nanosheet structure. The possible mechanism of photocatalytic disinfection has proposed that intracellular reactive oxygen species levels and the activities of antioxidant enzymes (e.g., catalase and superoxide dismutase) were enhanced. Transmission electron microscope images observed during photocatalytic disinfection process suggested that the cell membrane was regarded as the first target for oxidation, resulting in a faster leakage of cytoplasmic content and finally degradation of DNA leading to bacterial death. Furthermore, the trapping experiment showed that superoxide radical (•O 2 − ) and holes (h + ) were responsible for E. coli K-12 disinfection by PCNS5.
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高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2022
·
IF 3.269
Fei Yuan,Hua Li,Long Li,Shiqiang Wang,Yafei Guo,Tianlong Deng
In this study, densities of the two ternary aqueous solution systems (LiB 5 O 8 + LiCl + H 2 O) and (LiB 5 O 8 + Li 2 SO 4 + H 2 O) were measured using an accurate digital vibrating-tube densimeter from 283.15 to 363.15 K at an interval of 5 K and 101.325 kPa. B 5 O 8 - in aqueous solution was in the form of [B 5 O 6 (OH) 4 ] - . Therefore, the complex aqueous solution of LiB 5 O 8 is in the form of Li[B 5 O 6 (OH) 4 ]. Subsequently, the mean apparent molar volume ( V Φ θ ) and mixing ion-interaction parameters ( θ a , a ′ v and Ψ c , a , a ′ v , c = Li + , a = B 5 O 6 (OH) 4 - , a ′ = Cl - or SO 4 2- ) against temperature were obtained using the Pitzer equation for the first time. And then, the temperature-dependence equations for the Pitzer mixing ion-interaction parameters and the relevant temperature correlation coefficients of the equation a j, i.e. [ f ( a i , T ) = a 1 + a 2 ln( T /298.15) + a 3 ( T − 298.15) + a 4 /(620 − T ) + a 5 /( T − 227)] were also obtained through the least square fitting. These volumetric properties and parameterization Pitzer parameters obtained in this work could hopefully be used for the quantitatively predictive calculation of the physicochemical properties of the mixed electrolytes containing lithium, chloride, and sulfate ions at any temperature.
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高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2021
·
IF 2.694
Panxi Wu,Lifeng Zhang,Shujun Zhao,Chenchen Wang,Yongsheng Guo,Wenjun Fang
Biofuel may be an important component of aviation fuel for its significant advantages. In the present work, two biofuel samples, methyl laurate and pinane, are selected for blending research with n-dodecane, a typical model fuel of aviation kerosene. Densities and viscosities for the ternary system pinane (1) + n-dodecane (2) + methyl laurate (3) and corresponding binary systems have been measured at the temperatures from 293.15 to 333.15 K and atmospheric pressure. The excess molar volume (VmE) and viscosity deviation (Δη) of binary systems have been calculated based on experimental data and fitted to the Redlich–Kister equation, while those of the ternary system have been fitted to Nagata–Tamura, Redlich–Kister, Cibulka, and Singh semiempirical equations, respectively. The values of the excess molar volume are all positive for all investigated systems, while the viscosity deviations are all negative. The results are discussed from the perspective of intermolecular force and the structure. Furthermore, the densities and viscosities of both binary and ternary mixtures are satisfactorily correlated using the Jouyban–Acree model.
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高影响因子
ACTA PHARMACOLOGICA SINICA
·
2024
·
IF 6.9
Hu Cheng-hong,Chen Yue,Jin Tian-yang,Wang Zhe,Jin Bo,Liao Jing,Ding Chun-yong,Zhang Ao,Tang Wei-yang,Zhang Ling-xi,Xu Lei-yu,Ning Fang-min,Liang Guang,Wei Xiao-hong,Wang Yi
Inflammatory bowel diseases (IBDs) are chronic inflammatory conditions primarily affecting the gastrointestinal tract. Previous studies established the role of the NF-κB signaling pathway in the development of IBDs, suggesting that anti-inflammatory therapies might offer a viable treatment strategy. Tanshinone IIA and salviadione, both derived from Salviae Miltiorrhizae Radix et Rhizoma , possess anti-inflammatory and anti-oxidative activities. A series of new compounds were synthesized by hybridizing salviadione with tanshinone. Among these compounds, 15a showed beneficial effects in LPS-induced acute lung injury and diabetes-induced renal injury mouse models. The current study explored the therapeutic efficacy of 15a using both acute and chronic colitis models and elucidated the underlying mechanisms. DSS-induced colitis models were established in mice, where acute colitis was treated with compound 15a (5 or 10 mg·kg −1 ·d −1 ) for 8 days, while chronic colitis mice received compound 15a (5 or 10 mg·kg −1 ·d −1 , i.g.) during 2.5% DSS administration. The 15a treatment significantly alleviated DSS-induced pathological and inflammatory damages in both acute and chronic colitis mouse models. In mouse intestinal epithelial cell line MODE-K, pretreatment with compound 15a (5 or 10 μM) significantly suppressed LPS + L18-MDP-induced inflammatory responses. The receptor-interacting serine/threonine kinase 2 (RIPK2) was identified as a direct binding target of compound 15a using microarrays and recombinant human proteins. Moreover, 15a could directly bind to and inhibit the phosphorylation of RIPK2, leading to the suppression of the NF-κB and MAPK signaling pathways. Furthermore, LEU153 and VAL32 were identified within the KD domain of RIPK2 as critical amino residues for the binding of 15a. Briefly, the current findings demonstrate that compound 15a holds promise as a therapeutic agent for managing acute and chronic colitis.
研究领域:
药理学
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免疫学
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胃肠病学
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炎症性肠病
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分子生物学
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DOI
PubMed
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Yangkai Sun,Yan Ding,Tianchi Shen,He Gong,Shurong Wang
The precise manipulation of the pore structure of carbon electrode materials at the atomic level is crucial for achieving ultra-fast charge and discharge in high-power supercapacitors. In this study, a novel strategy based on a trace amount of potassium ion (K + ) template-mediated liquid-liquid interface activation is developed. Using light bio-oil as the precursor, this method exploits the directional aggregation effect of its oxygen-rich macromolecules on the K + activating agent surface, successfully producing carbon materials with a high specific surface area (2044.4 m 2 /g), large pore volume (1.13 cm 3 /g), and high microporosity (97 %). The optimal carbon material demonstrates excellent electrochemical performance in aqueous supercapacitors: specific capacitances of 234.4 F/g and 434.5 F/g are achieved at 0.1 A/g in 6 M KOH and 0.25 M K 2 SO 4 electrolytes, respectively. Even after a 1000-fold increase in current density, 63.2 % of the initial capacitance is retained, demonstrating exceptional rate capability. Notably, the amount of activator used in this method is reduced by 27 times compared to traditional processes (activator/precursor ratio decreased from 3:1 to 1:9). Furthermore, comprehensive characterization techniques are employed to elucidate the chemical properties of light bio-oil and the pore-forming mechanism through activation with a low ratio of K + templates. The transport properties of different electrolyte ions within the pore structure of the synthesized carbon materials are also revealed. Particularly, the carbon electrode materials demonstrate exceptional cycling stability, maintaining nearly 100 % of their initial specific capacitance after 51,000 charge-discharge cycles at 10 A/g. This innovative liquid-liquid activation strategy, which achieves both high porosity and outstanding electrochemical performance in carbon materials using minimal activating agents, holds significant implications for the valorization of bio-oils.
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.5
Rong Jiang,Junyuan Huang,Ruixue Ma,Qian Li,Longjun Dai,Runyu Li,Xingpeng Chen,Yang Ren,Zhu Liu,Xu Chen,Xiaowei Zhou
Antimony trisulfide (Sb2S3) is a highly promising anode material for alkali-metal batteries due to its high theoretical capacity and abundant resources. However, severe volume expansion during charge-discharge and low electrical conductivity restrict its electrochemical performance. In this study, Sb2S3@NC core-shell nanorod with hollow feature (H-Sb2S3@NC) was successfully prepared via high-temperature carbonization and secondary sulfidation of the inorganic-organic Sb2S3@PDA composite precursor. It would induce the volatilization of partial Sb2S3 by controlling temperature during carbonization, concurrently forming the inorganic core-shell nanorod structure and its hollow feature. Compared to Sb2S3@NC without hollow feature, H-Sb2S3@NC exhibits superior cycling and rate performance when as anode for sodium-ion (SIBs) and potassium-ion batteries (PIBs). Specifically, as anode for SIBs, H-Sb2S3@NC retains 517.0 mAh g⁻¹ after 100 cycles at 100 mA g⁻¹ and even delivers 535.5 mAh g⁻¹ at 1000 mA g⁻¹ (Sb2S3@NC: 60.6 mAh g⁻¹ after 100 cycles at 100 mA g⁻¹, 39.7 mAh g⁻¹ at 1000 mA g⁻¹). For PIBs, H-Sb2S3@NC provides 431.1 mAh g⁻¹ after 50 cycles at 100 mA g⁻¹ (Sb2S3@NC: 208.3 mAh g⁻¹ under the same conditions). Ex situ characterizations confirm Sb2S3 undergoes a reversible conversion-alloying reaction during Na⁺/K⁺ storage. The internal voids of H-Sb2S3@NC could effectively buffer volume expansion stress, while N-doping in the NC (nitrogen-doped carbon) layer enhances ion/electron transport. These two factors synergistically ensure electrode structural stability and excellent kinetics. The temperature-controlled microstructure regulation strategy proposed in this study provides an effective approach to addressing the volume expansion problem of Sb2S3-based anodes and optimizing the electrode performance of alkali-metal ion batteries.
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高影响因子
JOURNAL OF RARE EARTHS
·
2024
·Vol. 43
·期 3
·543-551
·
IF 5.2
Lang Ruan,Zeyun Zhou,Yi Hu,Ruifeng Peng,Xiaoyan Chen,Ming Cheng,Zhi Zhou,Mao Xia
The technology of solid-state lighting has developed for decades in various industries. Phosphor, as an element part, determines the application domain of lighting products. For instance, blue and red-emitting phosphors are required in the process of plant supplementing light, arrow-band emitting phosphors are applied to backlight displays, etc. In this work, a Bi 3+ -activated blue phosphor was obtained in a symmetrical and compact crystal structure of Gd3SbO7 (GSO). Then, the co-doping strategy of alkali metal ions (Li + , Na + , and K + ) was used to optimize the performance. The result shows that the photoluminescence intensity is increased by 2.1 times and 1.3 times respectively by introducing Li + and K + ions. Not only that, it also achieves narrow-band emitting with the full width of half-maximum (FWHM) reaching 42 nm through Na + doping, and its excitation peak position also shifts from 322 to 375 nm, which can be well excited by near-ultraviolet (NUV) light emitting diode (LED) chips (365 nm). Meanwhile, the electroluminescence spectrum of GSO:0.6 mol%Bi 3+ ,3 wt%Na + matches up to 93.39% of the blue part of the absorption spectrum of chlorophyll a . In summary, the Bi 3+ -activated blue phosphor reported in this work can synchronously meet the requirements of plant light replenishment and field emission displays .
研究领域:
材料科学
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光学工程
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固体照明
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光电子学
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农业光生物学
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高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2020
·
IF 2.888
Dan Li,Dehui Xiao,Xiaoman Liu,Juan Zhao,Xinlu Xu,Cheng Wang,Wugang Wang
Densities and viscosities of ternary system (ethylcyclohexane + 1-butanol + ethyl octanoate) and three corresponding binary systems, (1-butanol + ethylcyclohexane), (1-butanol + ethyl octanoate), and (ethylcyclohexane + ethyl octanoate), were determined at 7 temperatures from 293.15 K to 323.15 K. For the ternary system and binary systems, the excess molar volumes ( V m E ) and viscosity deviations (Δ η ) of have been calculated. The V m E and Δ η data were fitted to the Redlich − Kister equations. The V m E values for the investigated systems are all positive, and the Δ η values are negative over the entire composition range. The density and viscosity data of blends and their corresponding excess properties or deviation may provide useful input data for thermodynamic or modelling studies.
研究领域:
化学热力学
·
物理化学
·
流体相平衡
·
溶液化学
·
化工基础数据
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高影响因子
INORGANIC CHEMISTRY
·
2021
·
IF 5.165
Wenhao Xing,Chunlan Tang,Pifu Gong,Jieyun Wu,Zheshuai Lin,Jiyong Yao,Wenlong Yin,Bin Kang
The continuous exploration of multinary chalcogenide semiconductors has provided a variety of new functional materials. In this paper, four new quaternary chalcogenides AHgPS4 (A+ = Na+, K+, Rb+, Cs+) have been prepared by solid-state syntheses. These findings complement the lack of research on this quaternary system. Influenced by the size effect of cations and the coordination mode of Hg, the four compounds crystallize in four different space groups [NaHgPS4, P4̅n2; KHgPS4, Pnn2; RbHgPS4, P21/n; CsHgPS4, P212121] and show an interesting evolution from a 3D framework structure to a 1D chain structure. Moreover, all of these compounds feature noncentrosymmetric (NCS) structures except for RbHgPS4. The materials exhibit wide band gaps of 2.7 eV < Eg < 3.0 eV. The NCS- related second-harmonic-generation (SHG) property of NaHgPS4 and KHgPS4 was also studied. They display strong powder SHG responses (3.14 × AgGaS2 for NaHgPS4; 4.15 × AgGaS2 for KHgPS4), which indicate their intriguing potential as IR nonlinear-optical materials. Moreover, first-principles theoretical calculations were performed to understand the structure–property relationships of these materials.
研究领域:
材料科学
·
无机化学
·
非线性光学
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固态化学
·
晶体学
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高影响因子
危险品化学品经营许可证（带存储）