Journal of Molecular Liquids最新文献

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Concentration effects on the structural, transport, and dielectric properties of the energy storage system {NaBF4 – dimethyl sulfoxide} used in sodium-ion battery technology: A molecular dynamics approach and DFT method 钠离子电池技术中使用的能量存储系统{NaBF4 -二甲基亚砜}的结构、传输和介电性能的浓度效应:分子动力学方法和DFT方法
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-15 Epub Date: 2026-01-24 DOI: 10.1016/j.molliq.2026.129272
Soumia Chliyah, Sanaa Rabii, Ayoub Lahmidi, Samir Chtita, Mhammed El Kouali, Abdelkbir Errougui
{"title":"Concentration effects on the structural, transport, and dielectric properties of the energy storage system {NaBF4 – dimethyl sulfoxide} used in sodium-ion battery technology: A molecular dynamics approach and DFT method","authors":"Soumia Chliyah,&nbsp;Sanaa Rabii,&nbsp;Ayoub Lahmidi,&nbsp;Samir Chtita,&nbsp;Mhammed El Kouali,&nbsp;Abdelkbir Errougui","doi":"10.1016/j.molliq.2026.129272","DOIUrl":"10.1016/j.molliq.2026.129272","url":null,"abstract":"<div><div>The transition to sustainable energy has highlighted the need for the development of electrolytic energy storage systems. Sodium-ion batteries (SIBs) are emerging as a promising alternative to lithium-ion batteries, offering advantages such as the availability of natural resources, reduced cost, and good low-temperature performance, making them particularly well-suited for large-scale energy storage applications. In this context, we employed two numerical simulation approaches: molecular dynamics (MD) and density functional theory (DFT) to examine the thermodynamic, structural, dynamic, and dielectric properties of the energy storage system {NaBF4 – Dimethylsulfoxide}. For this, we used the GROMOS force field for MD simulations under standard temperature and pressure conditions and at different concentrations ranging from 0.10 to 0.85 M. The DFT calculations were performed at the B3LYP functional level combined with the def2-TZVP and 6–311++G(d,p) basis sets, while implicit solvation effects were taken into account using the CPCM model. Finally, our results from MD and DFT approaches confirmed that the coordination environment of Na<sup>+</sup> is formed by 3 DMSO molecules and one BF₄<sup>−</sup> anion. Moreover, the transport of ions as well as the dielectric response show a strong dependence on the salt concentration. Indeed, the increase in concentration leads to a decrease in ionic diffusion and a gradual drop in the dielectric permittivity of the electrolytic solution. These valuable results contribute to the optimization of a new generation of electrolytic systems related to sodium-based rechargeable battery technology.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129272"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deep Eutectic Solvent-Based Nanofluids: A Comprehensive Overview of Types, Synthesis Strategies, Stability, Thermophysical Properties, and Theoretical Investigations 深共晶溶剂型纳米流体:类型、合成策略、稳定性、热物理性质和理论研究的综合综述
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-15 Epub Date: 2026-01-29 DOI: 10.1016/j.molliq.2026.129293
Rahmat Sadeghi, Soheyl Vaali
{"title":"Deep Eutectic Solvent-Based Nanofluids: A Comprehensive Overview of Types, Synthesis Strategies, Stability, Thermophysical Properties, and Theoretical Investigations","authors":"Rahmat Sadeghi,&nbsp;Soheyl Vaali","doi":"10.1016/j.molliq.2026.129293","DOIUrl":"10.1016/j.molliq.2026.129293","url":null,"abstract":"<div><div>Deep eutectic solvent (DES)-based nanofluids have emerged as a promising class of versatile, sustainable, and highly functional materials that synergistically combine the unique physicochemical and environmentally benign properties of DESs with the enhanced thermal, electrical, and functional characteristics of nanoparticles. Furthermore, the three-dimensional network architecture formed by DES increases the stability of the homogeneous dispersion of nanoparticles and prevents their aggregation. This review provides a comprehensive overview of the current progress in the types, synthesis strategies, stability, thermophysical properties, and theoretical investigations of DES-based nanofluids. A complete database of different types of nanomaterials and DESs used to prepare DES-based nanofluids will be presented along with the characteristics of the resulting nanofluids in terms of preparation method, stability, and thermophysical properties. Various approaches for the preparation, stabilization, and homogeneous particle dispersion have been discussed, along with various factors affecting the stability of these types of nanofluids. The thermophysical properties of the nanofluids—such as thermal conductivity, heat capacity, viscosity, density, photothermal conversion—are examined, highlighting the influence of the type and concentration of nanoparticle, type and composition of DES and temperature. A variety of theoretical studies including theoretical and semi-empirical equations, molecular dynamics simulations, aspen plus simulations, and machine learning that have been conducted to study the properties, stability, structure, interactions, and thermophysical properties of the nanofluids will also be discussed. This review will critically examine all the various studies and works carried out so far, and while pointing out the existing weaknesses and challenges, it will also present future research directions needed to address the shortcomings. Finally, this review concludes with an analysis of the strengths, weaknesses, opportunities and threats in this area.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129293"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comment on “Effects of nanobubble on physical properties of water: A coarse-grained molecular dynamics analysis” by Yuhang Du, Fanqi Pei, Zhi Wen, and Guofeng Lou [J. Mol. Liq. 437 (2025) 128445] 对“纳米气泡对水的物理性质的影响:一种粗粒度分子动力学分析”的评论[J]。Mol. Liq. 437 (2025) 128445]
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-15 Epub Date: 2026-01-29 DOI: 10.1016/j.molliq.2026.129245
Francisco J. Arias
{"title":"Comment on “Effects of nanobubble on physical properties of water: A coarse-grained molecular dynamics analysis” by Yuhang Du, Fanqi Pei, Zhi Wen, and Guofeng Lou [J. Mol. Liq. 437 (2025) 128445]","authors":"Francisco J. Arias","doi":"10.1016/j.molliq.2026.129245","DOIUrl":"10.1016/j.molliq.2026.129245","url":null,"abstract":"<div><div>In the referenced article the authors employ a coarse-grained molecular dynamics approach to explore the influence of nanobubbles on the viscosity and surface tension of water. Surface tension is computed via the pressure-tensor method, and the simulations indicate that nanobubbles systematically reduce the surface-tension coefficient. A linear empirical correlation is proposed for the ratio <span><math><mi>γ</mi><mrow><mo>/</mo></mrow><msub><mi>γ</mi><mi>f</mi></msub></math></span>, where <span><math><mi>γ</mi></math></span> is the surface tension of nanobubble water and <span><math><msub><mi>γ</mi><mi>f</mi></msub></math></span> is that of pure water under identical conditions. However, this linear relation is calibrated only within <span><math><mi>T</mi><mo>∈</mo><mo>[</mo><mn>300</mn><mo>,</mo><mn>350</mn><mo>]</mo></math></span> K, despite the pressure coefficients spanning up to <span><math><mn>100</mn></math></span> bar, where liquid water remains stable at temperatures significantly above <span><math><mn>350</mn></math></span> K. A direct extension of the linear form leads to unphysical predictions outside the calibration interval. In this Comment, by linking the molecular-dynamics results of Du et al. with classical interfacial thermodynamics—originating in Gibbs’ adsorption theory and later strengthened by Frenkel’s molecular-kinetic framework—it is demonstrated that the temperature dependence of <span><math><mi>γ</mi><mrow><mo>/</mo></mrow><msub><mi>γ</mi><mi>f</mi></msub></math></span> should follow an exponential attenuation law. This form naturally reduces to the authors’ linear correlation via a first-order expansion, while remaining physically consistent at higher temperatures. Moreover, the resulting model predicts a molecular Gibbs free energy in excellent agreement with independent values reported in the literature, thus lending further confidence to the MD simulations of Du et al.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129245"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural remodeling of cationic micelles through methyl salicylate encapsulation: insights from SANS and cryo-TEM 水杨酸甲酯包封阳离子胶束的结构重塑:来自SANS和冷冻透射电镜的见解
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-15 Epub Date: 2026-01-29 DOI: 10.1016/j.molliq.2026.129316
Nikunj Patel , Kinal Patel , Sugam Kumar , Sharmistha Dutta Choudhury , Unnati Dani , Mayursing Girase , Ketan Kuperkar , Jagruti Barot , Mehul Khimani , Paresh Parekh , Jigisha K. Parikh , Vinod K. Aswal , Vijay I. Patel
{"title":"Structural remodeling of cationic micelles through methyl salicylate encapsulation: insights from SANS and cryo-TEM","authors":"Nikunj Patel ,&nbsp;Kinal Patel ,&nbsp;Sugam Kumar ,&nbsp;Sharmistha Dutta Choudhury ,&nbsp;Unnati Dani ,&nbsp;Mayursing Girase ,&nbsp;Ketan Kuperkar ,&nbsp;Jagruti Barot ,&nbsp;Mehul Khimani ,&nbsp;Paresh Parekh ,&nbsp;Jigisha K. Parikh ,&nbsp;Vinod K. Aswal ,&nbsp;Vijay I. Patel","doi":"10.1016/j.molliq.2026.129316","DOIUrl":"10.1016/j.molliq.2026.129316","url":null,"abstract":"<div><div>Encapsulation of methyl salicylate (MS) within analogous cationic surfactant micelles provides a versatile platform for tuning soft matter assemblies with enhanced performance. The central objective of the current study is to elucidate the impact of MS on the aggregation behavior of cetyltrimethylammonium-based cationic surfactants having tosylate, chloride, and bromide counterions by an integrated suite of physicochemical methods. A combination of viscosity, small-angle neutron scattering (SANS), and cryogenic transmission electron microscopy (cryo-TEM) was employed to unveil the MS-driven morphological transitions of cationic micelles. The depth of partitioning of MS within cationic micelles, driven by concentration- and temperature-induced hydrophobicity, can be effectively explicated by pyrene steady-state fluorescence, through <em>I</em><sub>1</sub>/<em>I</em><sub>3</sub> analysis. Complementary Density functional theory (DFT) calculations were also employed to gain a deeper understanding of the molecular-level interactions between MS and host micelles, thereby substantiating the experimental findings. It also assesses the bioactive properties of MS-loaded in cationic micelles. The outcomes of this study underscore the MS-surfactant interaction in the formulation of soft materials for possible applications in pharmaceuticals and nanostructured formulations.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129316"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nickel complex of camphor-substituted tetrapyrazinoporphyrazine as an inducer of helical liquid crystalline phase 樟脑取代的四吡嗪卟啉镍配合物作为螺旋液晶相的诱导剂
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.molliq.2025.129193
Vladimir Burmistrov, Igor Novikov, Viktor Aleksandriiskii, Alina Budanova, Alexandr Semeikin
{"title":"Nickel complex of camphor-substituted tetrapyrazinoporphyrazine as an inducer of helical liquid crystalline phase","authors":"Vladimir Burmistrov,&nbsp;Igor Novikov,&nbsp;Viktor Aleksandriiskii,&nbsp;Alina Budanova,&nbsp;Alexandr Semeikin","doi":"10.1016/j.molliq.2025.129193","DOIUrl":"10.1016/j.molliq.2025.129193","url":null,"abstract":"<div><div>In this study, the ability of the chiral tetracamphor derivative of tetrapyrazinoporphyrazine (Ni(−)TСPyzPz) to induce a helical liquid crystalline phase in a nematic mixture of alkoxycyanobiphenyls is investigated. Based on quantum chemistry and UV/Vis CD spectroscopy, it was shown that the chirality of (Ni(−)TCPyzPz) in chloroform solutions depends significantly on its association, leading to the appearance of a noticeable dipole moment. The H-dimer («face-to-face») is the most stable. Using polarisation microscopy, the formation of the fingerprint texture and Newton interference rings was recorded after the introduction of (Ni(−)TСPyzPz) into the nematic mixture of alkoxycyanobiphenyls CB-2. Clearing temperatures, helical pitch, and helical twisting power (HTP) were measured. The high efficiency of helix induction under the action of (Ni(−)TСPyzPz) (maximum HTP value 87.7 μm<sup>−1</sup>) was found, decreasing with increasing dopant concentration due to its association. The dichroic ratio of Q-band absorption and the order parameter of (Ni(−)TСPyzPz) were measured by polarisation spectroscopy. The CD spectra of the dopant in the CB-2 mixture were obtained, the values of the molar circular dichroism coefficient and the g-factor of the Q-band dissymmetry were calculated. The g value in LC was shown to be 147 times greater than in the chloroform solution as a result of the amplification of chirality in the anisotropic medium. An increase in circular dichroism with a rise in the number of nematic LC molecules in the solvation shell was shown by the quantum chemistry method.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"445 ","pages":"Article 129193"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel micelle-mediated ionic liquid-based vortex-assisted dispersive liquid-liquid microextraction for preconcentration and FAAS determination of thallium (III) 新型胶束离子液体涡旋辅助分散液液微萃取预富集及火焰原子吸收光谱法测定铊(III)
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-01 Epub Date: 2026-01-07 DOI: 10.1016/j.molliq.2026.129246
Sajda. S. Affat , Denys Snigur
{"title":"A novel micelle-mediated ionic liquid-based vortex-assisted dispersive liquid-liquid microextraction for preconcentration and FAAS determination of thallium (III)","authors":"Sajda. S. Affat ,&nbsp;Denys Snigur","doi":"10.1016/j.molliq.2026.129246","DOIUrl":"10.1016/j.molliq.2026.129246","url":null,"abstract":"<div><div>A novel, eco-friendly approach for the preconcentration and quantification of trace thallium(III) ions in environmental samples was developed using micelle-mediated ionic liquid-based vortex-assisted dispersive liquid–liquid microextraction (MM-IL-VA-DLLME) coupled with flame atomic absorption spectroscopy (FAAS). The method introduces C-Phycocyanin as a green complexing reagent for Tl(III). The method demonstrated linearity up to 400 μg L<sup>−1</sup> under the optimized conditions. The LOD and LOQ were 0.02 μg L<sup>−1</sup> and 0.05 μg L<sup>−1</sup>, respectively. The proposed MM-IL-VA-DLLME method was successfully applied to the determination of thallium(III) in water, soil, and industrial dust samples. The Analytical Greenness Metric Approach (AGREE) was applied to assess the environmental impact of the proposed method.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"445 ","pages":"Article 129246"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphology control of multi-shelled hollow mesoporous silica via soft-templating for enhanced methylene blue adsorption 软模板法控制多孔介孔二氧化硅对亚甲基蓝的吸附
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.molliq.2026.129243
Eman.I. Ali , Y.H. Kotp , I.M. Ali , F.A. Elsaid , H.A. Shawky
{"title":"Morphology control of multi-shelled hollow mesoporous silica via soft-templating for enhanced methylene blue adsorption","authors":"Eman.I. Ali ,&nbsp;Y.H. Kotp ,&nbsp;I.M. Ali ,&nbsp;F.A. Elsaid ,&nbsp;H.A. Shawky","doi":"10.1016/j.molliq.2026.129243","DOIUrl":"10.1016/j.molliq.2026.129243","url":null,"abstract":"<div><div>A soft-templated approach based on multilamellar vesicle (MLV) formation was developed for the synthesis of multi-shelled hollow mesoporous silica (MHMS) spheres with precisely tunable morphology and exceptional porosity. By systematically varying the concentrations of CTAB, 1-pentanol, and ammonia, we achieved precise control over particle size, shell number, specific surface area, and pore structure. The optimized synthesis yielded highly uniform MHMS particles with a surface area ranging from 455 to 1085 m<sup>2</sup> g<sup>−1</sup> and pore volumes up to 1.54 cm<sup>3</sup>/g, among the highest reported for similar silica nanostructures.</div><div>Comprehensive characterization via XRD, FTIR, DTG, TEM, SEM, and nitrogen sorption techniques confirmed the formation of highly uniform MHMS with 4–5 concentric wrinkled shells and well-developed mesopores.</div><div>Kinetic and isotherm modeling revealed that the adsorption process followed a pseudo-second-order mechanism and Freundlich behavior, suggesting multilayer adsorption on a heterogeneous surface, while the Langmuir monolayer capacity (q<sub>max</sub>) was 161.2 mg g<sup>−1</sup>. Thermodynamic analysis revealed a spontaneous and endothermic nature of adsorption, characterized by ΔG° = −3.97 kJ mol<sup>−1</sup>, ΔH° = 8.06 kJ mol<sup>−1</sup>, and ΔS° = 0.054 kJ mol<sup>−1</sup> K<sup>−1</sup>, indicating increased randomness at the solid–liquid interface. These findings highlight the effectiveness of vesicle-directed soft templating in constructing multi-shell hierarchical silica adsorbents with high specific surface area, and tailored accessible mesopores, offering strong potential for dye removal and other environmental remediation applications.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"445 ","pages":"Article 129243"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of guest-molecule dipole on hydrate nucleation via molecule dynamics simulation 客体分子偶极子对水合物成核影响的分子动力学模拟
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.molliq.2025.129223
Liwen Li , Muzhi Guo , Yifan Zhang , Jie Zhong
{"title":"Influence of guest-molecule dipole on hydrate nucleation via molecule dynamics simulation","authors":"Liwen Li ,&nbsp;Muzhi Guo ,&nbsp;Yifan Zhang ,&nbsp;Jie Zhong","doi":"10.1016/j.molliq.2025.129223","DOIUrl":"10.1016/j.molliq.2025.129223","url":null,"abstract":"<div><div>The research on hydrate nucleation holds great significance for gas storage and transportation. Given the diversity of guest molecules, numerous studies have separately explored the nucleation properties of each individual guest molecule. Although many studies provide valuable insights, this case-by-case method obscures relationships among different guests and impedes the establishment of generalizable principles. Here, we introduce “ideal-model guest molecules” to enable system-level control of guest-molecular dipole and conduct extensive molecular simulations using Forward Flux Sampling to study hydrate nucleation. By investigating critical nuclei, nucleation probability, the interface structures and dynamic properties of hydrate nuclei, we find that there is a competitive relationship between the polarity and solubility of guest molecules during hydrate nucleation. When the polarity of guest molecules is below a critical value, it promotes hydrate nucleation; once the polarity of guest molecules exceeds this critical state, it significantly inhibits hydrate nucleation. We believe that these findings uncover universal nucleation principles and can guide the molecular design of hydrate additives.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"445 ","pages":"Article 129223"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical and spectrophotometric study of bismuth nitrate interaction with orange G and Giemsa dyes: Cyclic voltammetry, complex stability, and biological activities 硝酸铋与橙G和吉姆萨染料相互作用的电化学和分光光度研究:循环伏安法、络合物稳定性和生物活性
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-01 Epub Date: 2025-12-29 DOI: 10.1016/j.molliq.2025.129139
Marwa S. Sultan , Magda E. Hammad , Mohamed M. Eldefrawy , Esam A. Gomaa , Elsayed M. AbouElleef
{"title":"Electrochemical and spectrophotometric study of bismuth nitrate interaction with orange G and Giemsa dyes: Cyclic voltammetry, complex stability, and biological activities","authors":"Marwa S. Sultan ,&nbsp;Magda E. Hammad ,&nbsp;Mohamed M. Eldefrawy ,&nbsp;Esam A. Gomaa ,&nbsp;Elsayed M. AbouElleef","doi":"10.1016/j.molliq.2025.129139","DOIUrl":"10.1016/j.molliq.2025.129139","url":null,"abstract":"<div><div>The electrochemical behavior of Bismuth Nitrate [Bi(NO<sub>3</sub>)<sub>3</sub>] was investigated using cyclic voltammetry (CV) in 0.1 M nitric acid at 300.15–301.15 K with a glassy carbon electrode. The effect of scan rate and dye addition (Orange G and Giemsa) on the redox behavior of Bi(III) was examined. Kinetic and thermodynamic parameters, including diffusion coefficients, surface coverage, and Gibbs free energies, were evaluated. The formation of 1:1 Bi<sup>3+</sup>–dye complexes was confirmed through UV–Vis spectroscopy, showing bathochromic (Δλ = +16–17 nm) and hyperchromic effects, indicating strong metal–ligand coordination. Formation constants obtained from Job's and Benesi–Hildebrand methods (K<sub>f</sub> ≈ 2 × 10<sup>9</sup> L mol<sup>−1</sup>; ΔG° ≈ −50 kJ mol<sup>−1</sup>) reveal spontaneous complexation. Cyclic voltammetric data corroborated the spectroscopic findings, showing decreased i<sub>pa</sub>/i<sub>pc</sub> and diffusion coefficients upon dye addition. The method was successfully applied to determine Bi(III) in water spike samples. PASS Online and antibacterial assays demonstrated promising antibacterial and antiviral activity of Orange G and its Bi(III) complex, particularly against <em>Staphylococcus aureus</em>, <em>E. coli</em>, and <em>Klebsiella pneumoniae</em>. The study provides a comprehensive electrochemical–spectroscopic–biological insight into Bi(III)–dye interactions, offering potential environmental and biomedical applications.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"445 ","pages":"Article 129139"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lubricating abilities of choline amino acid ionic liquids as neat lubricants and additives for aluminum-steel contacts 胆碱氨基酸离子液体作为纯润滑剂和铝-钢接触添加剂的润滑性能
IF 5.2 2区 化学
Journal of Molecular Liquids Pub Date : 2026-03-01 Epub Date: 2026-01-02 DOI: 10.1016/j.molliq.2025.129211
D.K. Kiboi , L. Stoll , C.M. Mandava , M.G. Coleman , F. Mangolini , P. Iglesias
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