1
|
Kurtanidze M, Mzareulishvili N, Rukhadze M, Bezarashvili G, Sidamonidze N. Study of structure of nonaqueous reverse micelles with o-nitroaniline and methyl orange as molecular probes: comparison with an aqueous reverse micelles. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abstract
Instead of water reversed micelles can also be formed with polar organic solvents possessed with high dielectric constant and very low solubility in oil phase. Nonaqueous reverse micelles or microemulsions represent an interesting microreactors for various reactions, especially for reactions, where reagents can react with water. Study of localization places of molecular probes in organic polar pockets of reverse micelles is topical. The solvatochromic behavior of optical probes ortho-nitroaniline (o-NA) and methyl orange (MO) was studied in nonaqueous reverse micelles on the basis of surfactants sodium bis (2-ethylhexyl) sulfosuccinate (AOT) and polyoxyethylene (4) lauryl ether (C12E4) and polar organic solvents (acetonitrile, dimethylformamide, glacial acetic acid, etc.) insoluble in oil phase hexane. The strength of binding of o-NA and MO to AOT and C12E4 reversed micelles was assesssed via binding constant (K
b
) and association degree (α) respectively. Donor, acceptor, or dipole-dipole interactions ability of the solvent to the head groups of surfactant was taken into account in order to explain results obtained with UV–visible spectroscopic method. The binding constants of o-NA with reverse AOT micelles in the presence of various solvents in the pockets of reversed micelles increase in the following row water < glacial acetic acid < acetonitrile < dimethylformamide < dimethyl sulfoxide, but this sequence is reversed when o-NA binds to C12E4 reverse micelles. The high value of the proton donor or acidity parameter in the water molecule (x
d
= 0.37) determines the weak binding of o-NA to the head AOT groups (K
b
= 20.8) in case of aqueous reverse micelles. The high value of the dipole parameter in the dimethylformamide molecule (x
n
= 0.40) promotes its strong interaction with nonionic polyoxyethylene groups of C12E4, which results in low value of binding constant (K
b
= 26.5) in case of optical probe o-NA and low value of association degree (α = 0.60) using MO as absorption probe. The results of this article will contribute to the improvement of the concept of interfacial processes, viz.: (i) some issues of supramolecular chemistry, (ii) revealing the contribution of parameters of donor, acceptor or dipole-dipole interaction in a polar organic solvent at the surfactant/nonpolar organic solvent interface, and (iii) features of the dissolution of optical probes in non-aqueous reverse micelles.
Collapse
Affiliation(s)
- Manoni Kurtanidze
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - Natia Mzareulishvili
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - Marina Rukhadze
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - George Bezarashvili
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| | - Nelly Sidamonidze
- Faculty of Exact and Natural Sciences , Ivane Javakhishvili Tbilisi State University , 3 I.Chavchavadze ave , Tbilisi , 0179 , Georgia
| |
Collapse
|
2
|
Crosio MA, Silber JJ, Moran Vieyra FE, Falcone RD, Borsarelli CD, Correa NM. Deciphering Solvation Effects in Aqueous Binary Mixtures by Fluorescence Behavior of 4-Aminophthalimide: The Comparison Between Ionic Liquids and Alcohols as Cosolvents. J Phys Chem B 2021; 125:13203-13211. [PMID: 34788537 DOI: 10.1021/acs.jpcb.1c06569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ionic liquids (ILs) have received attention for many years due to them being very promising as green solvent substitutes, but they are not fully understood, especially their behavior dissolved in other solvents, for example, water. Thus, the goal of this contribution is to show insight into the different IL-water mixtures interaction. In this way, two protic ILs (PILs), ethylammonium nitrate (EAN) and 1-methylimidazolium acetate (MIA), mixed with water were investigated. To study the PILs-water interaction, the unique spectroscopical behavior in water of the molecular probe 4-aminophthalimide (4-AP) was used. 4-AP emission spectra show hypsochromic shifting by changing the excitation wavelength and, using time-resolved spectroscopy, can be detected by a blue shifting with time. Also, the water mixture of an aprotic IL, 1-methyl-3-butylimidazolium tetrafluoroborate (bmimBF4), and three alcohols, methanol (MeOH), 2-propanol (2-PrOH), and t-butanol (t-BOH), were investigated for comparison. Our results show that the water-ILs interaction is dominated by the size of the IL components, in particular, the cation size. Thus, in MIA-water and bmimBF4-water mixtures, 4-AP is mostly solvated by the IL, even at a low IL molar fraction, as in the t-BOH-water mixture. This finding is especially interesting when ILs-water mixtures are used as a solvent in an organic reaction, where it may call attention to water probably not being the solvent that is interacting with the reactants.
Collapse
Affiliation(s)
- Matias A Crosio
- Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC), CONICET, Universidad Nacional de Córdoba, Av. Haya de la Torre s/N° Ciudad Universitaria C.P., X5000HUA, Córdoba, Argentina.,Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Av. Haya de la Torre s/N° Ciudad Universitaria C.P., X5000HUA, Córdoba, Argentina
| | - Juana J Silber
- Instituto para el Desarrollo Agroindustrial y de la Salud, IDAS, (CONICET - UNRC), Universidad Nacional de Río Cuarto, Agencia Postal # 3. C.P., X5804BYA, Río Cuarto, Argentina.,Departamento de Química, Facultad Ciencias Exactas Fisico-Química y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal # 3. C.P., X5804BYA, Río Cuarto, Argentina
| | - F Eduardo Moran Vieyra
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina.,Facultad de Agronomía y Agroindustrias, UNSE, Av. Belgrano (S) 1912, G4200ABT, Santiago del Estero, Argentina
| | - R Darío Falcone
- Instituto para el Desarrollo Agroindustrial y de la Salud, IDAS, (CONICET - UNRC), Universidad Nacional de Río Cuarto, Agencia Postal # 3. C.P., X5804BYA, Río Cuarto, Argentina.,Departamento de Química, Facultad Ciencias Exactas Fisico-Química y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal # 3. C.P., X5804BYA, Río Cuarto, Argentina
| | - Claudio D Borsarelli
- Instituto de Bionanotecnología del NOA (INBIONATEC), CONICET, Universidad Nacional de Santiago del Estero (UNSE), RN9, km 1125, G4206XCP, Santiago del Estero, Argentina.,Facultad de Agronomía y Agroindustrias, UNSE, Av. Belgrano (S) 1912, G4200ABT, Santiago del Estero, Argentina
| | - N Mariano Correa
- Instituto para el Desarrollo Agroindustrial y de la Salud, IDAS, (CONICET - UNRC), Universidad Nacional de Río Cuarto, Agencia Postal # 3. C.P., X5804BYA, Río Cuarto, Argentina.,Departamento de Química, Facultad Ciencias Exactas Fisico-Química y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal # 3. C.P., X5804BYA, Río Cuarto, Argentina
| |
Collapse
|
3
|
Esposito S, Ditaranto N, Dell’Agli G, Nasi R, Rivolo P, Bonelli B. Effective Inclusion of Sizable Amounts of Mo within TiO 2 Nanoparticles Can Be Obtained by Reverse Micelle Sol-Gel Synthesis. ACS OMEGA 2021; 6:5379-5388. [PMID: 33681577 PMCID: PMC7931434 DOI: 10.1021/acsomega.0c05552] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/27/2021] [Indexed: 05/02/2023]
Abstract
Six Mo/TiO2 samples (with 0, 1.0, 2.5, 5.0, 7.5, and 10 wt % Mo nominal contents) were obtained by reverse micelle sol-gel synthesis, followed by calcination at 500 °C. The samples were characterized by means of powder X-ray Diffraction (PXRD), quantitative phase analysis as obtained by Rietveld refinement, field-emission scanning electron microscopy (FE-SEM) coupled with energy-dispersive X-ray analysis, N2 adsorption/desorption at -196 °C, X-ray photoelectron spectroscopy, and diffuse reflectance (DR) UV-vis spectroscopy. As a whole, the adopted characterization techniques showed the inclusion of a sizeable Mo amount, without the segregation of any MoO x phase. Specifically, PXRD showed the occurrence of anatase and brookite with all the studied samples; notwithstanding the mild calcination temperature, the formation of rutile occurred at Mo wt % ≥2.5 likely due to the presence of brookite favoring, in turn, anatase to rutile transition. DR UV-vis and XP spectroscopies allowed determining the samples' band gap energy (E g) and valence band energy, respectively, from which the conduction band energy was calculated; and the observed E g value increase at 10 wt % Mo was ascribed to the Moss-Burstein effect.
Collapse
Affiliation(s)
- Serena Esposito
- Department
of Applied Science and Technology, Politecnico
di Torino, Corso Duca degli Abruzzi 24, Torino I-10129, Italy
- INSTM
Unit of Torino-Politecnico, Corso Duca degli Abruzzi 24, Torino I-10129, Italy
| | - Nicoletta Ditaranto
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via Orabona 4, Bari 70125, Italy
| | - Gianfranco Dell’Agli
- Dipartimento
di Ingegneria Civile e Meccanica, Università
degli Studi di Cassino e del Lazio Meridionale, Via G. Di Blasio, 43, Cassino (FR) I-03043, Italy
| | - Roberto Nasi
- Department
of Applied Science and Technology, Politecnico
di Torino, Corso Duca degli Abruzzi 24, Torino I-10129, Italy
| | - Paola Rivolo
- Department
of Applied Science and Technology, Politecnico
di Torino, Corso Duca degli Abruzzi 24, Torino I-10129, Italy
| | - Barbara Bonelli
- Department
of Applied Science and Technology, Politecnico
di Torino, Corso Duca degli Abruzzi 24, Torino I-10129, Italy
- INSTM
Unit of Torino-Politecnico, Corso Duca degli Abruzzi 24, Torino I-10129, Italy
| |
Collapse
|
4
|
Application of Reverse Micelle Sol⁻Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO₂ Nanoparticles. MATERIALS 2019; 12:ma12060937. [PMID: 30901826 PMCID: PMC6471443 DOI: 10.3390/ma12060937] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/15/2019] [Accepted: 03/19/2019] [Indexed: 11/26/2022]
Abstract
TiO2 nanoparticles containing 0.0, 1.0, 5.0, and 10.0 wt.% Mo were prepared by a reverse micelle template assisted sol–gel method allowing the dispersion of Mo atoms in the TiO2 matrix. Their textural and surface properties were characterized by means of X-ray powder diffraction, micro-Raman spectroscopy, N2 adsorption/desorption isotherms at −196 °C, energy dispersive X-ray analysis coupled to field emission scanning electron microscopy, X-ray photoelectron spectroscopy, diffuse reflectance UV–Vis spectroscopy, and ζ-potential measurement. The photocatalytic degradation of Rhodamine B (under visible light and low irradiance) in water was used as a test reaction as well. The ensemble of the obtained experimental results was analyzed in order to discover the actual state of Mo in the final materials, showing the occurrence of both bulk doping and Mo surface species, with progressive segregation of MoOx species occurring only at a higher Mo content.
Collapse
|
5
|
Kar B, Ghosh P, Kundu K, Bardhan S, Paul BK, Das S. Benzimidazolium-based high temperature ionic liquid-in-oil microemulsion for regioselective nitration reaction. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
6
|
Crosio MA, Correa NM, Silber JJ, Falcone RD. A protic ionic liquid, when entrapped in cationic reverse micelles, can be used as a suitable solvent for a bimolecular nucleophilic substitution reaction. Org Biomol Chem 2016; 14:3170-7. [DOI: 10.1039/c5ob02664d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
7
|
Greaves TL, Drummond CJ. Protic Ionic Liquids: Evolving Structure-Property Relationships and Expanding Applications. Chem Rev 2015; 115:11379-448. [PMID: 26426209 DOI: 10.1021/acs.chemrev.5b00158] [Citation(s) in RCA: 513] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamar L Greaves
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Calum J Drummond
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
| |
Collapse
|
8
|
Affiliation(s)
- Robert Hayes
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
| | - Gregory G. Warr
- School
of Chemistry, The University of Sydney, NSW 2006, Sydney, Australia
| | - Rob Atkin
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
| |
Collapse
|
9
|
Kundu K, Bardhan S, Banerjee S, Chakraborty G, Saha SK, Paul BK. Influence of chemical architecture of oils and ionic liquid on the physicochemical and thermodynamic properties and microenvironment of anionic surfactant based microemulsion. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.01.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
10
|
Rissi NC, Guglielmi DAS, Corrêa MA, Chiavacci LA. Relationship between composition and organizational levels of nanostructured systems formed by Oleth 10 and PPG-5-Ceteth-20 for potential drug delivery. BRAZ J PHARM SCI 2014. [DOI: 10.1590/s1984-82502014000300025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this paper, nanostructured systems were developed, with the aid of ternary phase diagrams, from two surfactants, of differing degrees of lipophilicity (PPG-5-Ceteth-20 and the Oleth 10) and two oil phases (oleic acid and isopropyl myristate). It was observed that there were differences between the four resulting phase diagrams in the physical properties of the systems they represent. Thus, due to the capacity of Oleth 10 (as surfactant) and oleic acid (as the oil phase) to reduce interfacial tension, large regions of translucent systems were seen on the diagrams produced by them. By polarized light microscopy, it was possible to identify the isotropic and anisotropic properties of these systems, which were confirmed by small-angle X-ray scattering (SAXS) analysis. Furthermore, it was found that increasing the proportion of water in the formulations led to more highly organized structures, resulting in narrower and well defined SAXS peaks.
Collapse
|
11
|
Characterization and preparation of poly(vinylidene fluoride) (PVDF) microporous membranes with interconnected bicontinuous structures via non-solvent induced phase separation (NIPS). JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-012-0066-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
12
|
Lyotropic liquid crystalline phases with a series of N-alkyl-N-methylpiperidinium bromides and water. J Colloid Interface Sci 2013; 389:199-205. [DOI: 10.1016/j.jcis.2012.09.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/12/2012] [Accepted: 09/13/2012] [Indexed: 11/18/2022]
|
13
|
Das S, Ghosh S. Fabrication of different morphologies of ZnO superstructures in presence of synthesized ethylammonium nitrate (EAN) ionic liquid: synthesis, characterization and analysis. Dalton Trans 2013; 42:1645-56. [DOI: 10.1039/c2dt31920a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
14
|
|
15
|
Zhang PY, Yang H, Xu ZL. Preparation of Polyvinylidene Fluoride (PVDF) Membranes via Nonsolvent Induced Phase Separation Process using a Tween 80 and H2O Mixture As an Additive. Ind Eng Chem Res 2012. [DOI: 10.1021/ie201806v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ping-Yun Zhang
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hu Yang
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhen-Liang Xu
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| |
Collapse
|
16
|
Sucrose monoester micelles size determined by Fluorescence Correlation Spectroscopy (FCS). PLoS One 2011; 6:e29278. [PMID: 22216230 PMCID: PMC3247245 DOI: 10.1371/journal.pone.0029278] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 11/23/2011] [Indexed: 11/20/2022] Open
Abstract
One of the several uses of sucrose detergents, as well as other micelle forming detergents, is the solubilization of different membrane proteins. Accurate knowledge of the micelle properties, including size and shape, are needed to optimize the surfactant conditions for protein purification and membrane characterization. We synthesized sucrose esters having different numbers of methylene subunits on the substituent to correlate the number of methylene groups with the size of the corresponding micelles. We used Fluorescence Correlation Spectroscopy (FCS) and two photon excitation to determine the translational D of the micelles and calculate their corresponding hydrodynamic radius, Rh. As a fluorescent probe we used LAURDAN (6-dodecanoyl-2-dimethylaminonaphthalene), a dye highly fluorescent when integrated in the micelle and non-fluorescent in aqueous media. We found a linear correlation between the size of the tail and the hydrodynamic radius of the micelle for the series of detergents measured.
Collapse
|