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Vauloup J, Bouilhac C, Sougrati MT, Stievano L, Coppey N, Zitolo A, Monconduit L, Lacroix-Desmazes P. Lithium and cobalt extraction from LiCoO 2 assisted by p(VBPDA-co-FDA) copolymers in supercritical CO 2. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 181:199-210. [PMID: 38643515 DOI: 10.1016/j.wasman.2024.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/30/2024] [Accepted: 03/12/2024] [Indexed: 04/23/2024]
Abstract
Supercritical CO2 (scCO2) extraction assisted by complexing copolymers is a promising process to recover valuable metals from lithium-ion batteries (LIBs). CO2, in addition to being non-toxic, abundant and non-flammable, allows an easy separation of metal-complexes from the extraction medium by depressurization, limiting the wastewater production. In this study, CO2-philic gradient copolymers bearing phosphonic diacid complexing groups (poly(vinylbenzylphosphonic diacid-co-1,1,2,2-tetrahydroperfluorodecylacrylate), p(VBPDA-co-FDA)) were synthesized for the extraction of lithium and cobalt from LiCoO2 cathode material. Notably, the copolymer was able to play the triple role of leaching agent, complexing agent and surfactant. The proof of concept for leaching, complexation and extraction was achieved, using two different extraction systems. A first extraction system used aqueous hydrogen peroxide as reducing agent while it was replaced by ethanol in the second extraction system. The scCO2 extraction conditions such as extraction time, temperature, functional copolymer concentration, and the presence of additives were optimized to improve the metals extraction from LiCoO2 cathode material, leading to an extraction efficiency of Li and Co up to ca. 75 % at 60 °C and 250 bar.
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Affiliation(s)
- Joshua Vauloup
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - Moulay Tahar Sougrati
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France; RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS #3459, Amiens F-80039 Cedex 1, France
| | - Lorenzo Stievano
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France; RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS #3459, Amiens F-80039 Cedex 1, France
| | | | | | - Laure Monconduit
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France; RS2E, Réseau Français sur le Stockage Electrochimique de l'Energie, FR CNRS #3459, Amiens F-80039 Cedex 1, France
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Hantal G, Sega M, Horvai G, Jedlovszky P. Contribution of Different Molecules and Moieties to the Surface Tension in Aqueous Surfactant Solutions. II: Role of the Size and Charge Sign of the Counterions. J Phys Chem B 2021; 125:9005-9018. [PMID: 34319728 DOI: 10.1021/acs.jpcb.1c04216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Understanding the role of the counterion species in surfactant solutions is a complicated task, made harder by the fact that, experimentally, it is not possible to vary independently bulk and surface quantities. Here, we perform molecular dynamics simulations at constant surface coverage of the liquid/vapor interface of lithium, sodium, potassium, rubidium, and cesium dodecyl sulfate aqueous solutions. We investigate the effect of counterion type and charge sign on the surface tension of the solution, analyzing the contribution of different species and moieties to the lateral pressure profile. The observed trends are qualitatively compatible with the Hofmeister series, with the notable exception of sodium. We point out a possible shortcoming of what is at the moment, in our experience, the most realistic nonpolarizable force field (CHARMM36) that includes the parametrization for the whole series of alkali counterions. In the artificial system where the counterion and surfactant charges are inverted in sign, the counterions become considerably harder. This charge inversion changes considerably the surface tension contributions of the counterions, surfactant headgroups, and water molecules, stressing the key role of the hardness of the counterions in this respect. However, the hydration free energy gain of the counterions, occurring upon charge inversion, is compensated by the concomitant free energy loss of the headgroups and water molecules, leading to a negligible change in the surface tension of the entire system.
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Affiliation(s)
- György Hantal
- Institute of Physics and Materials Science, University of Natural Resources and Life Sciences, Peter Jordan Straße 82, A-1190 Vienna, Austria.,Department of Chemistry, Eszterházy Károly University, Leányka utca 6, H-3300 Eger, Hungary
| | - Marcello Sega
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11),Fürther Straße 248, D-90429 Nürnberg, Germany
| | - George Horvai
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, H-1111 Budapest, Hungary
| | - Pál Jedlovszky
- Department of Chemistry, Eszterházy Károly University, Leányka utca 6, H-3300 Eger, Hungary
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Honti B, Idrissi A, Jedlovszky P. Calculation of the Free Energy of Mixing as a Tool for Assessing and Improving Potential Models: The Case of the N, N-Dimethylformamide-Water System. J Phys Chem B 2021; 125:4819-4830. [PMID: 33947181 DOI: 10.1021/acs.jpcb.1c01749] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The Helmholtz free energy, energy, and entropy of mixing of N,N-dimethylformamide (DMF) and water are calculated in the entire composition range by means of Monte Carlo computer simulations and thermodynamic integration using all possible combinations of five DMF and three widely used water models. Our results reveal that the mixing of DMF and water is highly non-ideal. Thus, in their dilute solutions, both molecules induce structural ordering of the major component, as evidenced by the concomitant decrease in the entropy. Among the 15 model combinations considered, only 4 reproduce the well-known full miscibility of DMF and water, 3 of which strongly exaggerate the thermodynamic driving force of the miscibility. Thus, the combination of the CS2 model of DMF and the TIP4P/2005 water model reproduces the properties of the DMF-water mixtures far better than the other combinations tested. Our results also reveal that moving a fractional negative charge from the N atom to the O atom of the DMF molecule, leading to the increase in its dipole moment, improves the miscibility of the model with water. Starting from the CS2 model and optimizing the charge to be moved, we propose a new model of DMF that reproduces very accurately both the Helmholtz free energy of mixing of aqueous DMF solutions in the entire composition range (when used in combination with the TIP4P/2005 water model) and also the internal energy of neat DMF.
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Affiliation(s)
- Barbara Honti
- Budapest University of Technology and Economics, Szt. Gellért tér 4, H-1111 Budapest, Hungary
| | - Abdenacer Idrissi
- CNRS, UMR 8516-LASIRe-Laboratoire Avancé de Spectroscopie pour les Interactions la Réactivité et l'environnement, University of Lille, F-5900 Lille, France
| | - Pál Jedlovszky
- Department of Chemistry, Eszterházy Károly University, Leányka utca 6, H-3300 Eger, Hungary
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Horváth RA, Horvai G, Idrissi A, Jedlovszky P. Thermodynamics of mixing methanol with supercritical CO 2 as seen from computer simulations and thermodynamic integration. Phys Chem Chem Phys 2020; 22:11652-11662. [PMID: 32406446 DOI: 10.1039/d0cp01241f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The changes in extensive thermodynamic quantities, such as volume, energy, Helmholtz free energy and entropy, occurring upon mixing liquid methanol with supercritical CO2, are calculated using Monte Carlo simulations and thermodynamic integration for all eight combinations of four methanol and two CO2 potential models in the entire composition range at 313 K. The obtained results are also compared with experimental data whenever possible. The transition of the system from liquid to a supercritical state is found to occur at this temperature around a CO2 mole fraction value of 0.95 with all model combinations considered. This liquid to supercritical transition is always accompanied by positive Helmholtz free energy of mixing values and, consequently, by the non-miscibility of the two components. Furthermore, both this non-miscibility around the liquid to supercritical transition and also the miscibility of the two components below this transition, in the liquid regime, are found to be primarily of the energetic rather than entropic origin; the entropy of mixing turns out to be very close to zero, and around the liquid to supercritical transition even its qualitative behaviour is strongly model dependent. Finally, it is found that the methanol expansion coefficient is not sensitive to the details of the potential models, and it is always in excellent agreement with the experimental data. On the other hand, both the volume and the energy of mixing depend strongly on the molar volume of neat CO2 in the model being used, and in this respect the TraPPE model of CO2 [J. J. Potoff and J. I. Siepmann, AIChE J., 2001, 47, 1676] performs considerably better than that of Zhang and Duan [Z. Zhang and Z. Duan, J. Chem. Phys., 2005, 122, 214507].
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Affiliation(s)
- Réka A Horváth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, H-1111 Budapest, Hungary
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Fábián B, Horvai G, Idrissi A, Jedlovszky P. Vapour-liquid equilibrium of acetone-CO2 mixtures of different compositions at the vicinity of the critical point. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Idrissi A, Jedlovszky P. Thermodynamics of Mixing Primary Alkanolamines with Water. J Phys Chem B 2018; 122:6251-6259. [PMID: 29771130 DOI: 10.1021/acs.jpcb.8b01052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The volume, energy, entropy, and Helmholtz free energy of mixing of the seven simplest primary alkanolamine molecules, i.e., monoethanolamine, monoisopropanolamine, 2-amino-propan-1-ol, 2-amino-butan-1-ol, 2-amino-2-methyl-propan-1-ol, 1-amino-2-methyl-propan-2-ol, and 1-amino-butan-2-ol, with water is investigated by extensive computer simulations and thermodynamic integration. To check the force field dependence of the results, all calculations are repeated with two commonly used water models, namely, SPC/E and TIP4P. The obtained results show that the thermodynamics of mixing of alkanolamines and water is largely independent from the type of the alkanolamine molecule. The Helmholtz free energy of mixing is found to be negative for all alkanolamines at every composition, in accordance with the experimentally known full miscibility of these molecules and water. This free energy decrease occurring upon mixing is found to be clearly of energetic origin, as the energy of mixing always turns out to be negative in the entire composition range, while the entropy of mixing is also negative up to high alkanolamine mole fractions. The obtained results suggest that alkanolamines form, on average, stronger hydrogen bonds with water than what is formed by two water molecules, and they induce some ordering of the hydrating water molecules both through the hydrophobic hydration of their side chains and through the strong hydrogen bonding.
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Affiliation(s)
- Abdenacer Idrissi
- Laboratoire de Spectrochimie Infrarouge et Raman (UMR CNRS 8516) , University of Lille Nord de France , 59655 Villeneuve d'Ascq Cedex , France
| | - Pál Jedlovszky
- Department of Chemistry , Eszterházy Károly University , Leányka utca 6 , H-3300 Eger , Hungary
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Kiss B, Fábián B, Idrissi A, Szőri M, Jedlovszky P. Miscibility and Thermodynamics of Mixing of Different Models of Formamide and Water in Computer Simulation. J Phys Chem B 2017; 121:7147-7155. [PMID: 28657740 DOI: 10.1021/acs.jpcb.7b04965] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The thermodynamic changes that occur upon mixing five models of formamide and three models of water, including the miscibility of these model combinations itself, is studied by performing Monte Carlo computer simulations using an appropriately chosen thermodynamic cycle and the method of thermodynamic integration. The results show that the mixing of these two components is close to the ideal mixing, as both the energy and entropy of mixing turn out to be rather close to the ideal term in the entire composition range. Concerning the energy of mixing, the OPLS/AA_mod model of formamide behaves in a qualitatively different way than the other models considered. Thus, this model results in negative, while the other ones in positive energy of mixing values in combination with all three water models considered. Experimental data supports this latter behavior. Although the Helmholtz free energy of mixing always turns out to be negative in the entire composition range, the majority of the model combinations tested either show limited miscibility, or, at least, approach the miscibility limit very closely in certain compositions. Concerning both the miscibility and the energy of mixing of these model combinations, we recommend the use of the combination of the CHARMM formamide and TIP4P water models in simulations of water-formamide mixtures.
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Affiliation(s)
- Bálint Kiss
- Institute of Chemistry, University of Miskolc , Egyetemváros A/2, H-3515 Miskolc, Hungary.,Laboratoire de Spectrochimie Infrarouge et Raman (UMR CNRS 8516), University of Lille Nord de France , 59655 Villeneuve d'Ascq Cedex, France
| | - Balázs Fábián
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics , Szt. Gellért tér 4, H-1111 Budapest, Hungary.,Institut UTINAM (CNRS UMR 6213), Université Bourgogne Franche-Comté , 16 route de Gray, F-25030 Besançon, France
| | - Abdenacer Idrissi
- Laboratoire de Spectrochimie Infrarouge et Raman (UMR CNRS 8516), University of Lille Nord de France , 59655 Villeneuve d'Ascq Cedex, France
| | - Milán Szőri
- Institute of Chemistry, University of Miskolc , Egyetemváros A/2, H-3515 Miskolc, Hungary
| | - Pál Jedlovszky
- Department of Chemistry, Eszterházy Károly University , Leányka utca 6, H-3300 Eger, Hungary
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Idrissi A, Marekha BA, Barj M, Miannay FA, Takamuku T, Raptis V, Samios J, Jedlovszky P. Local structure of dilute aqueous DMSO solutions, as seen from molecular dynamics simulations. J Chem Phys 2017. [DOI: 10.1063/1.4985630] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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10
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Girard E, Tassaing T, Marty JD, Destarac M. Structure-Property Relationships in CO2-philic (Co)polymers: Phase Behavior, Self-Assembly, and Stabilization of Water/CO2 Emulsions. Chem Rev 2016; 116:4125-69. [PMID: 27014998 DOI: 10.1021/acs.chemrev.5b00420] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This Review provides comprehensive guidelines for the design of CO2-philic copolymers through an exhaustive and precise coverage of factors governing the solubility of different classes of polymers. Starting from computational calculations describing the interactions of CO2 with various functionalities, we describe the phase behavior in sc-CO2 of the main families of polymers reported in literature. The self-assembly of amphiphilic copolymers of controlled architecture in supercritical carbon dioxide and their use as stabilizers for water/carbon dioxide emulsions then are covered. The relationships between the structure of such materials and their behavior in solutions and at interfaces are systematically underlined throughout these sections.
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Affiliation(s)
- Etienne Girard
- IMRCP, UMR CNRS 5623, Université de Toulouse , 118, route de Narbonne, Toulouse F-31062 Cedex 9, France
| | - Thierry Tassaing
- ISM, UMR CNRS 5255, Université de Bordeaux , 351, Cours de la Libération, Talence F-33405 Cedex, France
| | - Jean-Daniel Marty
- IMRCP, UMR CNRS 5623, Université de Toulouse , 118, route de Narbonne, Toulouse F-31062 Cedex 9, France
| | - Mathias Destarac
- IMRCP, UMR CNRS 5623, Université de Toulouse , 118, route de Narbonne, Toulouse F-31062 Cedex 9, France
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Jedlovszky P, Jójárt B, Horvai G. Properties of the intrinsic surface of liquid acetone, as seen from computer simulations. Mol Phys 2014. [DOI: 10.1080/00268976.2014.968227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Lafrad F, Idrissi A, Tassaing T. What is the state of aggregation of ethanol molecules in ethanol–supercritical carbon dioxide mixtures? An FTIR investigation in the full molar fraction range. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Idrissi A, Marekha B, Barj M, Jedlovszky P. Thermodynamics of mixing water with dimethyl sulfoxide, as seen from computer simulations. J Phys Chem B 2014; 118:8724-33. [PMID: 25010123 DOI: 10.1021/jp503352f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The Helmholtz free energy, energy, and entropy of mixing of eight different models of dimethyl sulfoxide (DMSO) with four widely used water models are calculated at 298 K over the entire composition range by means of thermodynamic integration along a suitably chosen thermodynamic path, and compared with experimental data. All 32 model combinations considered are able to reproduce the experimental values rather well, within RT (free energy and energy) and R (entropy) at any composition, and quite often the deviation from the experimental data is even smaller, being in the order of the uncertainty of the calculated free energy or energy, and entropy values of 0.1 kJ/mol and 0.1 J/(mol K), respectively. On the other hand, none of the model combinations considered can accurately reproduce all three experimental functions simultaneously. Furthermore, the fact that the entropy of mixing changes sign with increasing DMSO mole fraction is only reproduced by a handful of model pairs. Model combinations that (i) give the best reproduction of the experimental free energy, while still reasonably well reproducing the experimental energy and entropy of mixing, and (ii) that give the best reproduction of the experimental energy and entropy, while still reasonably well reproducing the experimental free energy of mixing, are identified.
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Affiliation(s)
- Abdenacer Idrissi
- Laboratoire de Spectrochimie Infrarouge et Raman (UMR CNRS 8516), University of Lille Nord de France , 59655 Villeneuve d'Ascq Cedex, France
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Idrissi A, Polok K, Barj M, Marekha B, Kiselev M, Jedlovszky P. Free Energy of Mixing of Acetone and Methanol: A Computer Simulation Investigation. J Phys Chem B 2013; 117:16157-64. [DOI: 10.1021/jp405090j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Abdenacer Idrissi
- Laboratoire
de Spectrochimie Infrarouge et Raman (UMR CNRS A8516), Université des Sciences et Technologies de Lille, Bâtiment
C5, 59655 Villeneuve
d’Ascq Cedex, France
| | - Kamil Polok
- Laboratory
of Physicochemistry of Dielectrics and Magnetics, Department of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Mohammed Barj
- Laboratoire
de Spectrochimie Infrarouge et Raman (UMR CNRS A8516), Université des Sciences et Technologies de Lille, Bâtiment
C5, 59655 Villeneuve
d’Ascq Cedex, France
| | - Bogdan Marekha
- Laboratoire
de Spectrochimie Infrarouge et Raman (UMR CNRS A8516), Université des Sciences et Technologies de Lille, Bâtiment
C5, 59655 Villeneuve
d’Ascq Cedex, France
- Department
of Inorganic Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody sq., 61022 Kharkiv, Ukraine
| | - Mikhail Kiselev
- Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, R-153045 Ivanovo, Russia
| | - Pál Jedlovszky
- Laboratory
of Interfaces and Nanosize Systems, Institute of Chemistry, Eötvös Loránd University, Pázmány P. Stny 1/A, H-1117 Budapest, Hungary
- MTA-BME Research Group of Technical Analytical Chemistry, Szt. Gellért tér 4, H-1111 Budapest, Hungary
- EKF Department of Chemistry, Leányka utca 6, H-3300 Eger, Hungary
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Chen AZ, Wang GY, Wang SB, Feng JG, Liu YG, Kang YQ. Preparation of Poly-(Methyl vinyl ether-co-maleic Anhydride) Nanoparticles by Solution-Enhanced Dispersion by Supercritical CO2. MATERIALS 2012. [PMCID: PMC5449034 DOI: 10.3390/ma5101841] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The supercritical CO2-based technologies have been widely used in the formation of drug and/or polymer particles for biomedical applications. In this study, nanoparticles of poly-(methyl vinyl ether-co-maleic anhydride) (PVM/MA) were successfully fabricated by a process of solution-enhanced dispersion by supercritical CO2 (SEDS). A 23 factorial experiment was designed to investigate and identify the significance of the processing parameters (concentration, flow and solvent/nonsolvent) for the surface morphology, particle size, and particle size distribution of the products. The effect of the concentration of PVM/MA was found to be dominant in the results regarding particle size. Decreasing the initial solution concentration of PVM/MA decreased the particle size significantly. After optimization, the resulting PVM/MA nanoparticles exhibited a good spherical shape, a smooth surface, and a narrow particle size distribution. Fourier transform infrared spectroscopy (FTIR) spectra demonstrated that the chemical composition of PVM/MA was not altered during the SEDS process and that the SEDS process was therefore a typical physical process. The absolute value of zeta potential of the obtained PVM/MA nanoparticles was larger than 40 mV, indicating the samples’ stability in aqueous suspension. Analysis of thermogravimetry-differential scanning calorimetry (TG-DSC) revealed that the effect of the SEDS process on the thermostability of PVM/MA was negligible. The results of gas chromatography (GC) analysis confirmed that the SEDS process could efficiently remove the organic residue.
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Affiliation(s)
- Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; E-Mail: (G.-Y.W.); (J.-G.F.); (Y.-G.L.); (Y.-Q.K.)
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China
- Author to whom correspondence should be addressed; E-Mails: (A.-Z.C.); (S.-B.W.); Tel./Fax: +86-0592-6162326 (A.-C.Z.); +86-0592-6162288 (S.-B.W.)
| | - Guang-Ya Wang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; E-Mail: (G.-Y.W.); (J.-G.F.); (Y.-G.L.); (Y.-Q.K.)
| | - Shi-Bin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; E-Mail: (G.-Y.W.); (J.-G.F.); (Y.-G.L.); (Y.-Q.K.)
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China
- Author to whom correspondence should be addressed; E-Mails: (A.-Z.C.); (S.-B.W.); Tel./Fax: +86-0592-6162326 (A.-C.Z.); +86-0592-6162288 (S.-B.W.)
| | - Jian-Gang Feng
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; E-Mail: (G.-Y.W.); (J.-G.F.); (Y.-G.L.); (Y.-Q.K.)
| | - Yuan-Gang Liu
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; E-Mail: (G.-Y.W.); (J.-G.F.); (Y.-G.L.); (Y.-Q.K.)
- Institute of Pharmaceutical Engineering, Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China
| | - Yong-Qiang Kang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; E-Mail: (G.-Y.W.); (J.-G.F.); (Y.-G.L.); (Y.-Q.K.)
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Pinke A, Jedlovszky P. Modeling of mixing acetone and water: how can their full miscibility be reproduced in computer simulations? J Phys Chem B 2012; 116:5977-84. [PMID: 22524681 DOI: 10.1021/jp302629r] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The free energy of mixing of acetone and water is calculated at 298 K by means of thermodynamic integration considering combinations of three acetone and six water potentials. The Anisotropic United Atom 4 (AUA4) and Transferable Potential for phase Equilibria (TraPPE) models of acetone are found not to be miscible with any of the six water models considered, although the free energy cost of the mixing of any of these model pairs is very small, being below the mean kinetic energy of the molecules along one degree of freedom of 0.5RT. On the other hand, the combination of the Pereyra, Asar, and Carignano (PAC) acetone and TIP5P-E water models turns out to be indeed fully miscible, and it is able to reproduce the change of the energy, entropy, and Helmholtz free energy of mixing of the two neat components very accurately (i.e., within 0.8 kJ/mol, 2.5 J/(mol K), and 0.3 kJ/mol, respectively) in the entire composition range. The obtained results also suggest that the PAC model of acetone is likely to be fully miscible with other water models, at least with SPC and TIP4P, as well.
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Affiliation(s)
- Anita Pinke
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, H-1111 Budapest, Hungary
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