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Synthesis of Stable Sols of Layered Titanate Nanoparticles using Dialysis and Applications for Thin Film Preparation 透析法制备层状纳米钛酸盐稳定溶胶及其在薄膜制备中的应用
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-12-18 DOI: 10.6000/1929-5030.2015.04.04.1
C. Wen, T. Kojima, N. Uekawa
{"title":"Synthesis of Stable Sols of Layered Titanate Nanoparticles using Dialysis and Applications for Thin Film Preparation","authors":"C. Wen, T. Kojima, N. Uekawa","doi":"10.6000/1929-5030.2015.04.04.1","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.04.1","url":null,"abstract":"Sols with stable dispersion of layered titanate nanoparticles were prepared at 298 K using dialysis of a mixed solution of ethylene glycol, TiCl 3 , ammonium carbonate, and H 2 O 2 . Raman spectra of the particles in the obtained sols showed Raman scattering peaks which can be assigned to a layered titanate structure. The stability of the obtained sols depended on the molar ratio of [ammonium carbonate] / [Ti ion]. The molar ratios of 3, 4, and 5 produced transparent yellow stable sols. Peptization of titanium hydroxide precipitate with H 2 O 2 formed stable sols with dispersion of layered titanate nanoparticles, which had plate - shaped morphology. The obtained sols formed layered titanate thin films on glass substrates easily by drying the sols. Furthermore, when the layered titanate thin films were heated at 773 K for 1 h, anatase TiO 2 thin films were obtained with (101) orientation of crystallites and optical transparency.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"132 1","pages":"165-172"},"PeriodicalIF":0.0,"publicationDate":"2015-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79656829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Thermodynamic Investigation of NaClO3 Solubility in the Mixed Solvent Medium and the Related Ion – Pair Formation at Different Temperatures 不同温度下氯化钠在混合溶剂介质中的溶解度及相关离子对形成的热力学研究
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-12-18 DOI: 10.6000/1929-5030.2015.04.04.2
M. Aghaie, Roshanak Kishani
{"title":"Thermodynamic Investigation of NaClO3 Solubility in the Mixed Solvent Medium and the Related Ion – Pair Formation at Different Temperatures","authors":"M. Aghaie, Roshanak Kishani","doi":"10.6000/1929-5030.2015.04.04.2","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.04.2","url":null,"abstract":"Using the evaporating method, the solubility of sodium chlorate was determined in the various mixed solvents (water + ethanol + propanol) at various temperatures. The results showed that the solubility of NaClO 3 decreases with increasing the mass percent of ethanol and propanol. On the other hand, the solubility of NaClO 3 increases with increasing the temperature .In addition, the equilibrium constant of ion pair formation, K IP, for the reaction Na + (aq) + ClO 3 - (aq) Na + ClO 3 - (Ion Pair) was estimated upon Fuoss contact ion pair model and then, the values of ion-pair concentrations were determined by using the extended Debye-HA¼ckel model and iteration calculations in various mixed solvents and various temperatures . Finally the value of thermodynamic solubility product constant, K sp(th) , and the values  I”H ° , I” S ° and I” G ° of  and of ion-pair formation were estimated in the mixed solvent media.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"10 1","pages":"173-177"},"PeriodicalIF":0.0,"publicationDate":"2015-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84886678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Thermodynamic Model on a Linear Rule between the Molal Concentration Exponential and the Osmotic Coefficients on Mole Fraction Base in Electrolyte Solutions and its Application 电解质溶液中摩尔浓度指数与摩尔分数碱渗透系数线性关系的热力学模型及其应用
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-11-18 DOI: 10.6000/1929-5030.2015.04.04.5
Zheng Fang
{"title":"A Thermodynamic Model on a Linear Rule between the Molal Concentration Exponential and the Osmotic Coefficients on Mole Fraction Base in Electrolyte Solutions and its Application","authors":"Zheng Fang","doi":"10.6000/1929-5030.2015.04.04.5","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.04.5","url":null,"abstract":"A linear rule is discovered. That is the osmotic coefficients on mole fraction base ( I‰ ) are linearly related to the molal concentration exponential ( m k 2 ) in single electrolyte solutions. Based on this rule, a thermodynamic model is developed and successfully used to the single electrolytes with various valent types, such as uniunivalent, biunivalent, triunivalent, tetraunivalent, bibivalent, and tribivalent to predict their conventional osmotic coefficients on molal base ( I¦ ), and also other properties, such as the relative molal vapor pressure lowering, the equivalent conductivity. Besides m k 2 , the x k 2 (the concentration exponential of mole fraction of solute) m k 2 ln ( m k 2 ), and x k 2 ln ( x k 2 ) are also linearly related to I‰ , respectively. They are all capable to be used to reproduce some properties of single electrolyte solutions. The examples with satisfied results have been given.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"275 1","pages":"194-212"},"PeriodicalIF":0.0,"publicationDate":"2015-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75111210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermodynamic Modeling of Chiral Compounds Solubility Using Correlative and Predictive Models 手性化合物溶解度的相关模型和预测模型热力学建模
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-09-08 DOI: 10.6000/1929-5030.2015.04.03.2
M. Salimi, B. ZareNezhad, H. Fakhraian, Ebrahim Choobdari
{"title":"Thermodynamic Modeling of Chiral Compounds Solubility Using Correlative and Predictive Models","authors":"M. Salimi, B. ZareNezhad, H. Fakhraian, Ebrahim Choobdari","doi":"10.6000/1929-5030.2015.04.03.2","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.03.2","url":null,"abstract":"Many intermolecular forces and parameters affect the solubility of a compound in a solvent. Various thermodynamic models are presented to predict these parameters and determine solid liquid equilibrium data. By selecting suitable thermodynamic model for solubility modeling, calculation error is reduced and the results will be closer to the experimental data. Herein, the ability of two predictive and two correlative models in solubility modeling of chiral compounds is investigated. Thus, solubility of pure and racemic forms of chiral Ketamine, Mandelic acid and 3-Chloromandelic acid is evaluated using UNIQUAC and NRTL models. The solubility modeling of pure and racemic forms of Ketamine in Ethanol is also determined by UNIFAC and NRTL-SAC models. There are good agreement between experimental data and results of NRTL and UNIQUAC models. Predictive NRTL-SAC model shows smaller deviation than UNIFAC in solubility determination of pure and racemic form of Ketamine.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"10 1","pages":"143-151"},"PeriodicalIF":0.0,"publicationDate":"2015-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86217916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Free unsolvated formaldehyde in solutions: influence of temperature, solvent permittiity, and total formaldehyde concentration 溶液中游离的未溶剂化甲醛:温度、溶剂介电常数和总甲醛浓度的影响
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-09-08 DOI: 10.6000/1929-5030.2015.04.03.3
M. M. Silaev
{"title":"Free unsolvated formaldehyde in solutions: influence of temperature, solvent permittiity, and total formaldehyde concentration","authors":"M. M. Silaev","doi":"10.6000/1929-5030.2015.04.03.3","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.03.3","url":null,"abstract":"A mechanism of the initiated nonbranched-chain process of forming 1,2-alkanediols and carbonyl compounds in alcohol–formaldehyde systems is suggested. The quasi-steady-state treatment is used to obtain kinetic equations that can describe the nonmonotonic (with a maximum) dependences of the formation rates of the products on the concentration of free unsolvated formaldehyde. The experimental concentration of the free unsolvated form of formaldehyde are given at the different temperatures, solvent permittivity and total concentrations of formaldehyde in water and alcohols. An empirical equation for calculating the free formaldehyde concentration in alcohol–formaldehyde (including water/ethanediol–formaldehyde) systems at various temperatures and total formaldehyde concentrations and an equation for evaluating solvent concentrations in these systems were derived.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"11 1","pages":"152-159"},"PeriodicalIF":0.0,"publicationDate":"2015-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86182388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural Data, Linear and Nonlinear Optical Properties of Some Cyclic Phosphazenes: A Theoretical Investigation 一些环磷烯的结构数据、线性和非线性光学性质:理论研究
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-09-08 DOI: 10.6000/1929-5030.2015.04.03.1
D. Hadji, A. Rahmouni
{"title":"Structural Data, Linear and Nonlinear Optical Properties of Some Cyclic Phosphazenes: A Theoretical Investigation","authors":"D. Hadji, A. Rahmouni","doi":"10.6000/1929-5030.2015.04.03.1","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.03.1","url":null,"abstract":"We report ab initio and DFT calculation of structural data, dipole moment, diagonal vibrational and electronic contributions to polarizability, vibrational and electronic contributions to first hyperpolarizability of some cyclic phosphazenes. The electronic structure of substituted cyclic phosphazenes has been investigated using Hartree-Fock and density functional theory. The vibrational and electronic contributions to polarizabilities and first hyperpolarizability of these molecules were calculated with HF method, and different DFT levels used the traditional B3LYP and PBE functional and the long-range corrected functional like Coulomb-attenuating method CAM-B3LYP, LC-BLYP and wB97XD used different basis sets. These cyclic phosphazenes adopts a planar structure. The study reveals that the cyclic phosphazenes derivatives have large vibrational contribution to static first hyperpolarizability values. The results obtained from this work will provide into the electronic properties of this important class of inorganic polymers.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"51 1","pages":"132-142"},"PeriodicalIF":0.0,"publicationDate":"2015-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81037704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preferential solvation of the antioxidant agent daidzein in some aqueous co-solvent mixtures according to IKBI and QLQC methods 根据IKBI法和QLQC法研究了抗氧化剂大豆苷元在一些水溶液共溶剂混合物中的优先溶剂化
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-06-16 DOI: 10.6000/1929-5030.2015.04.02.3
D. M. Jiménez, Zaira J. Cárdenas, D. R. Delgado, M. Peña, F. Martínez
{"title":"Preferential solvation of the antioxidant agent daidzein in some aqueous co-solvent mixtures according to IKBI and QLQC methods","authors":"D. M. Jiménez, Zaira J. Cárdenas, D. R. Delgado, M. Peña, F. Martínez","doi":"10.6000/1929-5030.2015.04.02.3","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.02.3","url":null,"abstract":"The preferential solvation parameters by ethanol (EtOH) or propylene glycol (PG) of daidzein were derived from their solution thermodynamic properties by means of the inverse Kirkwood-Buff integrals and the quasi-lattice-quasi-chemical (QLQC) methods. According to IKBI method, the preferential solvation parameter by the co-solvent, I´x 1,3 , is negative in water-rich mixtures but positive in co-solvent-rich mixtures in both kinds of systems. This could demonstrate the relevant role of hydrophobic hydration around the aromatic rings in the drug solvation in water-rich mixtures. Furthermore, the more solvation by co-solvent in co-solvent-rich mixtures could be due mainly to polarity effects and acidic behavior of the hydroxyl groups of the compound in front to the more basic solvents present in the mixtures, i.e. EtOH or PG. Otherwise, according to QLQC method, this drug is preferentially solvated by the co-solvents in all the mixtures in both kind of systems.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"2015 1","pages":"110-118"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87815210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Study of Molecular Interactions in Binary Mixtures of Diethyl Carbonate + Benzene Derivatives at Different Temperatures 不同温度下碳酸二乙酯+苯衍生物二元混合物的分子相互作用研究
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-06-16 DOI: 10.6000/1929-5030.2015.04.02.4
K. Narendra, B. Sudhamsa, M. Babu, T. S. Krishna
{"title":"Study of Molecular Interactions in Binary Mixtures of Diethyl Carbonate + Benzene Derivatives at Different Temperatures","authors":"K. Narendra, B. Sudhamsa, M. Babu, T. S. Krishna","doi":"10.6000/1929-5030.2015.04.02.4","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.02.4","url":null,"abstract":"Investigation on the molecular interactions between binary mixtures containing diethyl carbonate in combination with nitrobenzene, chlorobenzene and aniline is presented. Ultrasonic velocity and density values were determined for the individual components as well as binary mixtures of the above benzene derivatives with diethyl carbonate at temperatures (293.15, 298.15, 303.15, 308.15, 313.15, 318.15 and 323.15) K over the entire composition range. Further, adiabatic compressibility and acoustic impedance values were calculated using the experimental results. In addition to these parameters, the excess parameters like excess adiabatic compressibility, excess acoustic impedance and deviation in ultrasonic velocity were also obtained. Based on all these results, molecular interactions among the selected components were discussed.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"8 1","pages":"119-127"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73021835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Benzothiazole-Based Bis-azo Cationic Fluorescent Dyes with Extended Conjugated Systems: Synthesis and Properties 苯并噻唑基双偶氮阳离子荧光染料的扩展共轭体系:合成与性能
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-06-16 DOI: 10.6000/1929-5030.2015.04.02.1
F. Nourmohammadian, Mohammad Yousef Alikhani, M. Gholami, A. Abdi
{"title":"Benzothiazole-Based Bis-azo Cationic Fluorescent Dyes with Extended Conjugated Systems: Synthesis and Properties","authors":"F. Nourmohammadian, Mohammad Yousef Alikhani, M. Gholami, A. Abdi","doi":"10.6000/1929-5030.2015.04.02.1","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.02.1","url":null,"abstract":"Sixteen novel 2-aminobenzothiazole based dichromophoric cationic azo dyes were synthesized and their photophysical properties studied. The colors of the synthesized azo dyes were violet to blue with high molecular extinction coefficient ranged between 2.6 - 4.7× 10 4 (M -1 .cm -1 ). All of the dyes showed unique fluorescence emission at a broad range of 409–494 nm. The absorp­tion and emission spectral changes of selected dyes were also analyzed in solvents with different polarity. Furthermore, the antibacterial activities of the dyes were evaluated against gram positive and negative bacteria including S . aureus , S. epidermidis , E. coli , and P. aeruginosa and different concentrations of dyes showed an anti-gram positive bacterial activity.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"107 1","pages":"83-94"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79345496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Polymeric Versus Lipid Nanoparticles: Comparative Study of Nanoparticulate Systems as Indomethacin Carriers 高分子与脂质纳米颗粒:纳米颗粒系统作为吲哚美辛载体的比较研究
Journal of Applied Solution Chemistry and Modeling Pub Date : 2015-06-16 DOI: 10.6000/1929-5030.2015.04.02.2
A. Carvalho, Ivo Lopes, Odete Gonçalves, Eduarda Bárbara, M. E. C. R. Oliveira, M. Lúcio
{"title":"Polymeric Versus Lipid Nanoparticles: Comparative Study of Nanoparticulate Systems as Indomethacin Carriers","authors":"A. Carvalho, Ivo Lopes, Odete Gonçalves, Eduarda Bárbara, M. E. C. R. Oliveira, M. Lúcio","doi":"10.6000/1929-5030.2015.04.02.2","DOIUrl":"https://doi.org/10.6000/1929-5030.2015.04.02.2","url":null,"abstract":"This work was supported by FEDER through POFC \u0000– COMPETE and by national funds from FCT through \u0000the projects PEst-C/FIS/UI0607/2013 (CFUM). Marlene \u0000Lucio holds a position of Researcher FCT with the \u0000reference IF/00498/2012. We acknowledge \u0000NanoDelivery-I&D em Bionanotecnologia, Lda for \u0000access to their equipment.","PeriodicalId":15165,"journal":{"name":"Journal of Applied Solution Chemistry and Modeling","volume":"47 1","pages":"95-109"},"PeriodicalIF":0.0,"publicationDate":"2015-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86134457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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