Journal of Materials Chemistry C
·
2018
·Vol. 6
·期 28
·7527-7532
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IF 5.976
Daiyong Chao,Wei Lyu,Yingbo Liu,Liang Zhou,Qingrui Zhang,Ruiping Deng,Hongjie Zhang
In this study, solvent-dependent emitting carbon dots (CDs) were synthesized by simple one-step hydrothermal treatment of o-phenylenediamine (oPD). The as-prepared carbon dots (o-CDs) exhibited multi-color emission and strict excitation-independent luminescence characteristics in different solvents. Moreover, multi-color emissive o-CDs/polymer films were achieved through integrating the o-CDs with different polymer matrices. Interestingly, our experimental results demonstrated that distinctive o-CDs can also be used as fluorescent probes directly for visual and quantitative detection of water in different organic solvents. These investigations broaden the application of CDs and provide an easy method to quantitatively detect the presence of water in organic solvents.
研究领域:
材料科学
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分析化学
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
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2022
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IF 3.269
Shumin Xue,Jun Chu,Huanxin Yin,Xunqiu Wang
The gravimetric method was used to determine the solubility of triphenylphosphine in four mono-solvents (acetonitrile, tetrahydrofuran, cyclohexane, ethyl acetate) and two binary mixed solvents (acetonitrile + tetrahydrofuran, ethyl acetate + tetrahydrofuran) at normal pressure and temperature range (288.15 K-328.15 K). The results show that the solubility of triphenylphosphine in the selected solvent increased with the increase of temperature within the temperature range studied. In the binary mixed solvent (ethyl acetate + tetrahydrofuran, acetonitrile + tetrahydrofuran), the solubility of triphenylphosphine increased with the increase of the mass fraction of tetrahydrofuran. In addition, the Hansen solubility parameter (HSP) was used to explain the dissolution behavior of triphenylphosphine. The solubility data were fitted by the modified Apelblat equation, van't Hoff equation, λh equation, Apelblat-Sun equation and NRTL model. The results show that the modified Apelblat equation and van't Hoff equation have a better fitting effect on the solubility data of triphenylphosphine in the mono-solvents used in the experiment, and the modified Apelblat equation has a better fitting effect on the solubility data of triphenylphosphine in the binary mixed solvent used in the experiment. The fitting results can provide some basic data for the optimization of the crystallization process of triphenylphosphine. The thermodynamic properties of the dissolution process of triphenylphosphine in the selected solvent were calculated and discussed by van't Hoff equation, and the thermodynamic properties of the solution (Δ dis H , Δ dis S and Δ dis G ) were all positive values, which increased that the mixing and dissolution of triphenylphosphine in the selected solvent are endothermic and entropy-driven. This study can provide basic thermodynamic data for the crystallization and industrial separation of triphenylphosphine.
研究领域:
化学工程
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物理化学
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DOI
高影响因子
ACS Nano
·
2024
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IF 15.8
Hongliang Xie,Haoran Cheng,Pushpendra Kumar,Yuqi Wang,Honghong Liang,Tao Cai,Fei Zhao,Zhen Cao,Luigi Cavallo,Zheng Ma,Qian Li,Jun Ming
Electrolyte solvation chemistry regulated by lithium salts, solvents, and additives has garnered significant attention since it is the most effective strategy for designing high-performance electrolytes in lithium-ion batteries (LIBs). However, achieving a delicate balance is a persistent challenge, given that excessively strong or weak Li+-solvent coordination markedly undermines electrolyte properties, including thermodynamic redox stability and Li+-desolvation kinetics, limiting the practical applications. Herein, we elucidate the crucial influence of solvent–solvent interactions in modulating the Li+-solvation structure to enhance electrolyte thermodynamic and kinetic properties. As a paradigm, by combining strongly coordinated propylene carbonate (PC) with weakly coordinated cyclopentylmethyl ether (CPME), we identified intermolecular interactions between PC and CPME using 1H–1H correlation spectroscopy. Experimental and computational findings underscore the crucial role of solvent–solvent interactions in regulating Li+-solvent/anion interactions, which can enhance both the thermodynamic (i.e., antireduction capability) and kinetic (i.e., Li+-desolvation process) aspects of electrolytes. Additionally, we introduced an interfacial model to reveal the intricate relationship between solvent–solvent interactions, electrolyte properties, and electrode interfacial behaviors at a molecular scale. This study provides valuable insights into the critical impact of solvent–solvent interactions on electrolyte properties, which are pivotal for guiding future efforts in functionalized electrolyte engineering for metal-ion batteries.
研究领域:
材料科学
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电化学
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DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Xudong Zhang,Yang Deng,Yanhua Liu,Fan Yang,Yugao Wang,Jun Shen
Carbazole is a highly value-added compound derived from crude anthracene. Deep eutectic solvents (DESs) have been extensively used as promising green solvents for the separation of target compounds from mixture. In this work, 135 acidic DESs, formed by combining 9 quaternary ammonium salts with 15 common acids, were screened based on the conductor-like screening model for real solvents (COSMO-RS) model. The four top-ranked DESs, including tetraethylammonium chloride (TEAC)/2 acetic acid (AA), TEAC/2 propionic acid (PA), tetrapropylammonium chloride (TPAC)/2AA, and TPAC/2PA were identified as suitable extractants for carbazole separation based on their performance index (PI). Among them, TEAC/2AA had the best separation performance for carbazole due to its highest PI value (1448.19). Liquid–liquid extraction experiments were performed, and the results were in good accordance with those predicted by COSMO-RS calculations. Therefore, TEAC/2AA was determined as the most promising DES for the carbazole separation. The extraction conditions of TEAC/2AA were optimized. The extraction efficiency (EE) and selectivity (SE) of carbazole were 97.67 % and 66.64 %, respectively, under the optimal extraction conditions (25 ℃, 5 min of extraction time, DES-oil mass ratio of 1:5, initial carbazole concentration of 5000 ppm). Additionally, the deionized water was employed to regenerate the DES and recovery of carbazole. The recycling performance of promising DES was also investigated. Finally, quantum chemical calculations and Fourier Transform Infrared spectroscopy (FT-IR) analysis were conducted to explore the separation mechanism. The results indicated that the separation of carbazole by DESs were predominantly dominated by hydrogen bonds and van der Waals interaction. This work provided a valuable reference for the selection and design of DES extractants to separate other high value-added components from mixture.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
CELLULOSE
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2025
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IF 4.8
Li Wen,Meng Xiang-Guang,Yu Wen-Wang,Zhou Jie,Li Yan,Chu Dan-Dan
The dissolution of cellulose is an essential prerequisite for the development and utilization of cellulose. Here, a mixed solvent system containing deep eutectic solvents (DESs) and non-protonic organic solvents was prepared for the dissolution of three kinds of cellulose. This solvent system exhibited excellent ability for the dissolution of cellulose. The prepared mixed solvent system, comprising DESs synthesized from 1,1,3,3-tetramethylguanidine and acetic acid in combination with dimethyl sulfoxide and N , N -dimethylacetamide, could dissolve up to 29 wt% of microcrystalline cellulose, 24 wt% of bleached eucalyptus kraft pulp and 16 wt% of purified cotton with high polymerization degree at 80 °C. “Conjoining ion pairs” may be the main role in destroying the hydrogen bonds and promoting the dissolution of cellulose. The polymerization degree of the three regenerated celluloses only slightly decreased, and their infrared spectra did not show significant changes. This solvent system is inexpensive, easy to prepare, and recyclable.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Jie Wang,Chaowu Wang,Qibo Zhang
Recycling secondary resources that are rich in valuable metals can help reduce dependence on primary metal ores, foster sustainable industrial development, and enhance the resilience of the metal resource supply chain. This study presents a facile solvent extraction strategy for the efficient recovery of cobalt and nickel from spent choline chloride-ethylene glycol (ChCl-EG, Ethaline) deep eutectic solvent (DES) using bis(2,4,4-trimethylpentyl) phosphonic acid (Cyanex272) as the extractant. By integrating a water-modification approach with pH regulation, the viscosity of the Ethaline system is significantly reduced, while the coordination structures of Co(II) and Ni(II) ions are altered from [CoCl 4 ] 2 ⁻ and [Ni(EG) 3 ] 2+ to [CoCl 2 (H 2 O) 2 (EG) 2 ] 0 and [NiCl(H 2 O) 2 (EG) 2 ] + . This dual modification enables selective extraction with recovery efficiencies exceeding 99 % for both metals, achieving a separation coefficient ( β Co²⁺/Ni²⁺ ) of 9550. Mechanistic insights from density functional theory (DFT) calculations reveal that the preferential extraction of Co(II) stems from its more negative Gibbs free energy change (ΔG Co(II) = -0.21 kJ/mol vs. ΔG Ni(II) = -0.04 kJ/mol) during complexation with saponified Cyanex272. Furthermore, the regenerated Ethaline and Cyanex272 exhibit exceptional stability, maintaining > 95 % extraction efficiency over 10 cycles. This work advances solvent extraction technology by demonstrating a synergistic water-pH strategy for DES-based systems, offering a facile and scalable pathway for recycling metal-laden DES-based electrolytes in industrial applications.
研究领域:
环境科学
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化学工程
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2020
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IF 2.369
Xiao Juan Liu,Yang Zhang,Xue Zhong Wang
The solubility of benzanilide in sixteen pure organic solvents, including N, N-dimethylformamide, tetrahydrofuran, butanone, acetone, ethyl acetate, dichloromethane, n-butanol, diethyl ether, n-propanol, acetonitrile, ethanol, methanol, isobutanol, isopropanol, toluene, and carbon tetrachloride, was measured at temperatures ranging from 274.15 to 313.15 K using the static equilibrium method at atmospheric pressure. The modified Apelblat model, Buchowski-Ksiazczak λh model, and Non Random Two Liquid (NRTL) model were used to correlate the experimental solubility data. It was found that in all these solvents the solubility of benzanilide increases in different pace as the temperature increases. The modified Apelblat model gave the best fit. Guided by the solubility data, preliminary experimental study was conducted for cooling crystallization of benzanilide in ethanol and n-propanol. The result indicated that the solvent, stirring speed and cooling rate all have significant impact on crystal morphology and particle size distribution.
研究领域:
化学工程
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材料科学
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2018
·
IF 2.196
Yongzhao Zhang,Xia Guo,Ping Tang,Jian Xu
2,5-Furandicarboxylic acid (FDCA) serves as a monomer in various polyesters and is often obtained through the oxidation of 5-hydroxymethylfurfural. The solubility data of FDCA are of great value for the reaction process analysis and separation technology. The experimental solubility of FDCA in eight pure solvents (water, methanol, acetonitrile, acetic acid, ethyl acetate, methyl isobutyl ketone (MIBK), 1-butanol, and isobutanol) and two binary solvent systems (water + acetonitrile and water + acetic acid) in the temperature range of 313.15–363.15 K was determined. In pure solvents and binary mixtures, the solubility of FDCA increased with the increasing temperature. The order from largest to smallest solubility in pure solvents was as follows: methanol, 1-butanol, isobutanol, acetic acid, water, MIBK, ethyl acetate, and acetonitrile. The mole fraction of FDCA in binary mixtures increased first and then decreased with the increasing mole fraction of water. The solubility data were correlated with the UNIQUAC model, NRTL model, and WILSON model.
研究领域:
化学工程
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
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IF 6.633
Weizhong Gong,Pan Li,Sohrab Rohani
The crystallization of taurine in pure water results in a low yield. Introducing anti-solvents during the cooling crystallization process would increase the yield. Therefore, measuring and evaluating the solubility of taurine in different binary aqueous solvents is necessary. In this work, the qualitative trend of the solubility of taurine in the binary solvent systems of 1,2-propanediol-water, acetonitrile–water, and ethylene glycol–water was first predicted using Hansen Solubility Parameters (HSPs), and then experimentally determined using isothermal gravimetric method. The experimentally obtained solubility is correlated with the modified Apelblat model as a linear model, and NRTL, UNIQUAC, Wilson, and λh model as nonlinear models. The solubility of taurine in binary solvents is further analyzed using the KAT-LSER model to investigate the solvent effect on solubility. For all researched systems, the standard molar enthalpy and the standard molar Gibbs energy changes are computed and found to be positive, indicating the dissolution of taurine is an endothermic process.
研究领域:
化学工程
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药物化学
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物理化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Shuai Wang,Chunliang Shang,Yimin Deng,Jan Baeyens,Tatiana V. Plisko,Alexandr V. Bildyukevich,Tejraj M Aminabhavi,Xinying Liu,Mahluli Moyo,Helei Liu
The mass transfer plays a decisive role in screening and evaluation of amine solvents as well as in designing and scale-up of CO 2 capture. The influence of different operating parameters on mass transfer processes in CO 2 capture by EAE-1DMA2P amine solution was thoroughly investigated using a small-scale packed column. The mass transfer mechanism of EAE-1DMA2P amine solution in the capture of CO 2 was discussed by determining both mass transfer control steps and the reaction region between CO 2 and amine solvent, which provided a theoretical guidance for subsequent development of new solvents for large-scale applications. In addition, based on the experimental observations of K G a v , a prediction model for K G a v of EAE-1DMA2P composite amine solution was established by comparing two empirical models viz., Kohl-Riesenfeld-Astarita and Sheng of which Kohl-Riesenfeld-Astarita model provided a better fitting of the experimental results. The commonly used amine solvents and EAE-1DMA2P composite solvents were further compared and analyzed in terms of packed column size design and solvent consumption. The required packed column volume using EAE-1DMA2P composite solvent was only 4.95 m 3 , while the EAE-1DMA2P composite solvent has the smallest solvent consumption among all the solvents, indicating that this solvent has a lower operating cost than the other solvents, suggesting better industrial application.
研究领域:
化学工程
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环境科学
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产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-10
·
IF 15.7
Wu Huiqing,Xu Yang,Tang Qingchen,Wu Baohu,Wu Peiyi
Highly permselective membranes with superior permeability and broad applicability are essential for organic solvent nanofiltration (OSN). However, conventional polyamide membranes often suffer from limited permeability, especially for non-polar solvents. We herein propose a simple yet effective strategy to fabricate polyamide membranes capable of ultrafast separation for both polar and non-polar solvents. By utilizing a non-planar amine monomer with diphenyl ether moiety, interfacial polymerization is rationally conducted at the deep eutectic solvent/alkane interface, yielding an ultrathin polyamide layer (~12 nm) with enhanced microporosity, uniform nanopores and a Janus-like microstructure. The resultant membrane demonstrates high permeability (36.6 L m⁻² h⁻¹ bar⁻¹ for methanol, 56.6 L m⁻² h⁻¹ bar⁻¹ for hexane), precise molecular sieving capability and excellent structural stability. The work provides a paradigm for developing high-performance OSN membranes through the molecular-level design and powerful control of the manufacturing process.
研究领域:
材料科学
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膜分离技术
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化学工程
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高分子科学
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纳米科技
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2023
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IF 2.6
Lingli Zhang,Chunjuan Huang
The equilibrium solubility of 6-bromo-2-methylquinoline in various binary blends [ethanol/isopropanol/N,N-dimethylformamide (DMF)/methanol + water] and ten monosolvents (methanol, ethanol, n-propanol, isopropanol, ethyl acetate, toluene, acetone, acetonitrile, DMF, and water) was studied by the isothermal method at 278.15–323.15 K under 101.2 kPa. Among the ten pure solvents, the maximum solubility in mole fraction was obtained in toluene (3.318 × 10–2), followed by ethyl acetate (2.991 × 10–2), acetone (2.764 × 10–2), acetonitrile (2.528 × 10–2), DMF (2.220 × 10–2), n-propanol (9.141 × 10–3), isopropanol (8.123 × 10–3), ethanol (3.896 × 10–3), methanol (9.981 × 10–4), and water (2.888 × 10–5) at 323.15 K. In four solvent mixtures, the maximum and minimum solubilities were obtained in the (DMF + water) and (methanol + water) blends. The solubility of 6-bromo-2-methylquinoline in pure solvents was only affected by temperature and calculated by the Apelblat, van’t Hoff, and NRTL models. The Jouyban–Acree (J–A), van’t Hoff–Jouyban–Acree (V–J–A), and modified Apelblat–Jouyban–Acree (A–J–A) models were used to evaluate the solubility data in mixed systems. The calculation of solvent effect deeply explored the dissolution behavior of 6-bromo-2-methylquinoline from the molecular point of view, and the results showed that the interaction between the solute and solvent was dominant. The apparent thermodynamic properties of 6-bromo-2-methylquinoline in pure solvents were obtained by van’t Hoff plots.
研究领域:
化学
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物理化学
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DOI
高影响因子
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