1
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D. Y, J. SR. Raman and DFT investigations on the interaction of binary liquid mixtures of acetone with polar and non-polar solvents. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Taleghani MS, Tabrizi NS, Sangpour P. Enhanced visible-light photocatalytic activity of titanium dioxide doped CNT-C aerogel. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Dineshkumar P, Sahana R, Shanmugam R, Elangovan A, Sankaranarayanan R, Kumbharkhane A, Joshi Y, Arivazhagan G. Heteromolecular H –bond interaction forces and dielectric parameters: Time domain reflectometry studies. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Benkirane C, Ben Moumen A, Fauconnier ML, Belhaj K, Abid M, Caid HS, Elamrani A, Mansouri F. Bioactive compounds from hemp ( Cannabis sativa L.) seeds: optimization of phenolic antioxidant extraction using simplex lattice mixture design and HPLC-DAD/ESI-MS 2 analysis. RSC Adv 2022; 12:25764-25777. [PMID: 36199301 PMCID: PMC9465696 DOI: 10.1039/d2ra04081f] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 09/03/2022] [Indexed: 12/03/2022] Open
Abstract
The extraction of phenolic compounds from defatted hempseeds was optimized using a simplex lattice mixture design with three solvents (water, methanol, and acetone). The response variables were total phenolic content (TPC) and antioxidant activity evaluated by different spectrophotometric tests. The results showed that the binary acetone-water mixture in equal proportions is the optimal combination to achieve the maximum TPC (53.65 mg GAE per g extract) with higher antioxidant activities (265.53, 36.25, 119.03, 69.46, and 68.91 mg TE g−1 extract for the TAC, DPPH, ABTS, FRAP, and CUPRAC tests respectively). In addition, the phenolic profile analysis of defatted hemp seeds by HPLC-DAD/ESI-MS2 techniques showed the predominance of hydroxycinnamic acid amides and lignanamides. It allowed visualizing the effect of each solvent mixture on the relative extracted amount of each identified phenolic compound. This study suggests that N-trans-caffeoyltyramine, cannabisin A, and cannabisin B might contribute strongly to the potent antioxidant activity of hempseed extracts. Thus, it encourages the use of defatted hemp seeds as a source of antioxidants with added value for pharmaceutical and cosmetic applications. The extraction of phenolic compounds from hemp seeds was optimized using a mixture design. 50% aqueous acetone was the optimal solvent to extract 33 phenolic compounds with a richness in hydroxycinnamic acid amides and lignanamides.![]()
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Affiliation(s)
- Chaymae Benkirane
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
| | - Abdessamad Ben Moumen
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
| | - Marie-Laure Fauconnier
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés, 2,5030 Gembloux, Belgium
| | - Kamal Belhaj
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
| | - Malika Abid
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
| | - Hana Serghini Caid
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
| | - Ahmed Elamrani
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
| | - Farid Mansouri
- Laboratory of Agricultural Productions Improvement, Biotechnology and Environment, Faculty of Sciences, Mohammed I University, BP-717, 60000 Oujda, Morocco
- SASEF Laboratory, Higher School of Education and Training, Mohammed I University, BP-410, 60000 Oujda, Morocco
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5
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Naganandhini SP, Sangeetha T, Arivazhagan G. FTIR SPECTRAL STUDIES OF THE BINARY SOLUTIONS OF ACETONE WITH XYLENE ISOMERS. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621120106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Yang S, Wen Q, Chen Z. Effect of KH 2PO 4-modified biochar on immobilization of Cr, Cu, Pb, Zn and as during anaerobic digestion of swine manure. BIORESOURCE TECHNOLOGY 2021; 339:125570. [PMID: 34303096 DOI: 10.1016/j.biortech.2021.125570] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/09/2021] [Accepted: 07/11/2021] [Indexed: 05/16/2023]
Abstract
In this study, the immobilization performance and mechanisms of heavy metals (HMs) in swine manure (SM) during anaerobic digestion (AD) with biochar (BC) and KH2PO4-modified biochar (BP) were investigated. BC and BP addition decreased DTPA-extractable Cr, Cu, Pb and Zn amount, transformed these HMs to more stable state, and decreased the ecological risks of these HMs by 2 grades accordingly. BP exhibited a higher passivation efficiency for Cr, Cu and Pb and 5% -10% biochar dosage showed the maximum passivation effects. Characterization results showed that Cr, Cu and Pb immobilization with BP were mainly attributed to the formation of phosphate precipitation. However, both DTPA extraction and mobility of As increased with biochar addition, because the release of phosphorus in biochar had negative effect on As immobilization. BP could serve as a novel remediation agent for Cr, Cu, Pb and Zn passivation but special attention should be paid with As presence.
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Affiliation(s)
- Shuo Yang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Qinxue Wen
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Zhiqiang Chen
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
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7
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Diaz-Baca JA, Fatehi P. Process development for tall oil lignin production. BIORESOURCE TECHNOLOGY 2021; 329:124891. [PMID: 33676355 DOI: 10.1016/j.biortech.2021.124891] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
The aim of this work was to study the production and characterization of tall oil lignin (TOL) from tall oil soap (TOS) of the kraft pulping process following a new process (i.e., LignoTall). Also, the properties of the TOL and kraft lignin (KL) produced via LignoForce technology were compared. Although TOL and KL were generated from the same black liquor and softwood species, they had remarkably different characteristics, confirming the impact of the production methods on the physicochemical properties of the isolated lignin. TOL had higher molecular weight, O/C elemental ratio, sulfur content, and carboxylate-OH content but lower methoxy group content than did KL. The high sulfur group content (7.3%) of TOL can be very useful for the vulcanization process. Moreover, the high carboxylate-OH content of TOL (0.56 mmol/g) is desirable for its utilization in epoxy resin production.
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Affiliation(s)
- Jonathan A Diaz-Baca
- Green Processes Research Centre and Chemical Engineering Department, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B5E1, Canada
| | - Pedram Fatehi
- Green Processes Research Centre and Chemical Engineering Department, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7B5E1, Canada.
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8
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Kannan P, Karthick N, Sangeetha T, Shanmugam R, Elangovan A, Arivazhagan G. FTIR studies and DFT calculations on the associative nature of methyl cellosolve in binary solutions with acetonitrile. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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FTIR spectroscopic studies and DFT calculations on the binary solution of methyl acetate with m-xylene. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113491] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Sangeetha T, Kannan P, Karthick N, Mahendraprabu A, Arivazhagan G. Classical/non-classical hydrogen bonds in m-xylene - ethanol solution: FTIR and theoretical approach. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Zuorro A. Enhanced Lycopene Extraction from Tomato Peels by Optimized Mixed-Polarity Solvent Mixtures. Molecules 2020; 25:E2038. [PMID: 32349412 PMCID: PMC7248986 DOI: 10.3390/molecules25092038] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/24/2020] [Accepted: 04/24/2020] [Indexed: 12/29/2022] Open
Abstract
Mounting evidence from clinical and epidemiological studies suggests that lycopene, the most abundant carotenoid in tomatoes, may be beneficial in the prevention or treatment of some important diseases. Ripe tomato peels are the richest source of lycopene, but the use of conventional solvent extraction methods without pretreatment of the plant material results in very poor recovery. The reason lies in the localization of lycopene in the plant tissue and the low permeability of the latter to solvent molecules. In this paper, a mixture design procedure was used to formulate solvent mixtures allowing the recovery of lycopene from non-pretreated tomato peels. Two ternary systems were investigated: (a) n-hexane-ethanol-acetone and (b) ethyl lactate-ethanol-acetone. Optimization of the ternary mixture composition led to a recovery of over 90% of the lycopene present in the peels. The high extraction efficiency was explained in terms of lycopene affinity combined with the ability to swell the plant material. A tomato oleoresin with high antioxidant activity and a lycopene content of about 13% (w/w) was also produced. Overall, the results indicate that highly effective solvents for direct recovery of lycopene from tomato peels can be easily prepared by a mixture design approach.
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Affiliation(s)
- Antonio Zuorro
- Department of Chemical Engineering, Materials and Environment, Sapienza University, 00185 Rome, Italy
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12
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Mahendraprabu A, Karthick N, Kannan P, Sangeetha T, Kumbharkhane A, Arivazhagan G. Molecular interactions in the binary solutions of methyl cellosolve with chlorobenzene: Spectroscopic and dielectric studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Kannan PP, Karthick NK, Arivazhagan G. Hydrogen bond interactions in the binary solutions of formamide with methanol: FTIR spectroscopic and theoretical studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117892. [PMID: 31862652 DOI: 10.1016/j.saa.2019.117892] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 12/01/2019] [Accepted: 12/01/2019] [Indexed: 05/28/2023]
Abstract
FTIR spectroscopic studies on the binary solutions of formamide with methanol reveal the presence of "free" O - H in methanol. These "free" O - H groups are found in methanol tetramers which is confirmed from the DFT calculations. DFT calculations on the formamide dimers of five different geometries encompassing one or more of the N - H⋯O, C - H⋯O and N - H⋯N hydrogen bonds tell that N - H⋯N bonds are the strongest. Dissociation of the. N - H⋯N bonds of formamide in the binary solutions with methanol has a major impact on the NH2 symmetric stretching mode of formamide in the FTIR spectra. In these solutions the formation of 1:4 (formamide:methanol), 1:5 and 2:4 complexes are possible. These complexes are more stable than the formamide dimers, methanol tetramer and pentamer investigated in the present work. Methanol methyl group plays no role in either the self-association or heterointeraction with formamide.
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Affiliation(s)
- P P Kannan
- Postgraduate Department of Physics, Mannar Thirumalai Naicker College, Madurai 625004, Tamilnadu, India
| | - N K Karthick
- Department of Physics, The Madura College, Madurai 625011, Tamilnadu, India
| | - G Arivazhagan
- Department of Physics, Thiagarajar College, Madurai 625009, Tamilnadu, India.
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14
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Mahendraprabu A, Sangeetha T, Kannan P, Karthick N, Kumbharkhane A, Arivazhagan G. Hydrogen bond interactions of ethyl acetate with methyl Cellosolve: FTIR spectroscopic and dielectric relaxation studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112490] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Kannan PP, Arivazhagan G, Sangeetha T, Karthick NK, Kumbharkhane AC. FTIR studies, DFT calculations and time domain reflectometry studies on tetrahydrofuran - methanol binary solutions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117162. [PMID: 31176160 DOI: 10.1016/j.saa.2019.117162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/21/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
FTIR signature of neat tetrahydrofuran (THF), methanol (MeOH) and their binary solutions at various molefractions (0.8:0.2 (THF:MeOH), 0.6:0.4, 0.4:0.6 and 0.2:0.8) have been recorded. Density Functional Theory (DFT) calculations have also been carried out on THF, MeOH multimers and possible THF-MeOH complex molecules. The results of FTIR studies and DFT calculations confirm the formation of 1:3 (THF:MeOH) and 1:4 complex structures with (MeOH)O - H⋯O(THF), (MeOH methyl)C - H⋯O(THF) and (THF methylene)C - H⋯O(MeOH) H-bond interactions. (MeOH)O - H⋯O(MeOH) homointeractions among the MeOH trimers and tetramers are stronger than the THF-MeOH heterointeractions in complexes. But, the stability of 1:4 complexes is more than that of the trimers and tetramers as inferred from the interaction energy values obtained by DFT calculations. Time Domain Reflectometry (TDR) study has also been carried out on the THF-MeOH binary solutions in the frequency range 10 MHz-30 GHz at 298 K. The results of dielectric studies have been correlated with that of FTIR studies and DFT calculations.
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Affiliation(s)
- P P Kannan
- Department of Physics, Thiagarajar College, Madurai 625009, Tamilnadu, India
| | - G Arivazhagan
- Department of Physics, Thiagarajar College, Madurai 625009, Tamilnadu, India.
| | - T Sangeetha
- Department of Physics, Thiagarajar College, Madurai 625009, Tamilnadu, India
| | - N K Karthick
- Department of Physics, Madura College, Madurai 625011, Tamilnadu, India
| | - A C Kumbharkhane
- School of Physical Sciences, S.R.T.M. University, Nanded 431606, MS, India
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16
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Homo/hetero interactions in the binary solutions of toluene with acetonitrile: FTIR spectroscopic, theoretical and dielectric studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Novel Janus Fibrous Membranes with Enhanced Directional Water Vapor Transmission. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9163302] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Novel hydrophobic/hydrophilic Janus fibrous membranes, the poly[4,4′-methylenebis (phenylisocyanate)-alt-1,4-butanediol/di(propylene glycol)/plycaprolactone] (PU) fibrous membrane as the hydrophobic layer and cellulose acetate (CA) fibrous membrane as the hydrophilic layer, were fabricated by the so-called “layer-by-layer” electrospinning technology. A series of the PU/CA Janus membranes with different electrospinning time of the CA layers by which the thickness of hydrophilic layer can be controlled were also prepared to uncover its influence on the directional water vapor transmission. The results showed that water vapor transmission capability from the hydrophobic side to the hydrophilic side of the PU/CA Janus fibrous membrane was enhanced rather than that from the reverse direction of the same membrane. The optimal water vapor transmission capacity existed when the electrospinning time of CA fibrous membrane reached 15 min. Such enhanced water vapor transmission originated because of the asymmetric wettability of the Janus membrane and the strong force to draw tiny water droplet from the hydrophobic side to the hydrophilic side. The novel understanding is useful for facile designing and fabrication of efficient moisture permeable fabrics and clothing.
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18
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Kannan P, Karthick N, Mahendraprabu A, Kumbharkhane A, Joshi Y, Arivazhagan G. FTIR spectroscopy, quantum chemical calculations and time domain reflectometry studies on the behavior of methanol molecules in the environment of dibutyl ether. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Malloum A, Fifen JJ, Conradie J. Exploration of the potential energy surface of the ethanol hexamer. J Chem Phys 2019; 150:124308. [DOI: 10.1063/1.5085843] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Alhadji Malloum
- Department of Physics, Faculty of Science, University of Ngaoundere, P.O. Box 454, Ngaoundere, Cameroon
| | - Jean Jules Fifen
- Department of Physics, Faculty of Science, University of Ngaoundere, P.O. Box 454, Ngaoundere, Cameroon
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
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20
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Jin T, Zhou J, Lin HYG, Lin PT. Mid-Infrared Chalcogenide Waveguides for Real-Time and Nondestructive Volatile Organic Compound Detection. Anal Chem 2019; 91:817-822. [PMID: 30516952 DOI: 10.1021/acs.analchem.8b03004] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A mid-infrared (mid-IR) sensor chip was demonstrated for volatile organic compound (VOC) detection. The sensor consisted of As2Se3 optical waveguides built by microelectronic fabrication processes. The VOC sensing performance was characterized by measuring acetone and ethanol vapors at their characteristic C-H absorption from λ = 3.40 to 3.50 μm. Continuous VOC detection with <5 s response time was achieved by measuring the intensity attenuation of the waveguide mode. The miniaturized noninvasive VOC sensor can be applied to breath analysis and environmental toxin monitoring.
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Affiliation(s)
| | | | - Hao-Yu Greg Lin
- Center for Nanoscale Systems , Harvard University , 11 Oxford Street , Cambridge , Massachusetts 02138 , United States
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21
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Oswald S, Suhm MA, Coussan S. Incremental NH stretching downshift through stepwise nitrogen complexation of pyrrole: a combined jet expansion and matrix isolation study. Phys Chem Chem Phys 2019; 21:1277-1284. [DOI: 10.1039/c8cp07053a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The NH stretch of pyrrole experiences downshifts when expanded with N2 or embedded in pure/mixed N2 matrices, no blueshift.
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Affiliation(s)
- Sönke Oswald
- Institut für Physikalische Chemie, Universität Göttingen
- 37077 Göttingen
- Germany
| | - Martin A. Suhm
- Institut für Physikalische Chemie, Universität Göttingen
- 37077 Göttingen
- Germany
| | - Stéphane Coussan
- CNRS, PIIM, Laboratoire des Interactions Ioniques et Moléculaires, Aix Marseille Universite
- 13397 Marseille Cedex 20
- France
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22
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Guevara-Carrion G, Gaponenko Y, Mialdun A, Janzen T, Shevtsova V, Vrabec J. Interplay of structure and diffusion in ternary liquid mixtures of benzene + acetone + varying alcohols. J Chem Phys 2018; 149:064504. [PMID: 30111131 DOI: 10.1063/1.5044431] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The Fick diffusion coefficient matrix of ternary mixtures containing benzene + acetone + three different alcohols, i.e., methanol, ethanol, and 2-propanol, is studied by molecular dynamics simulation and Taylor dispersion experiments. Aiming to identify common features of these mixtures, it is found that one of the main diffusion coefficients and the smaller eigenvalue do not depend on the type of alcohol along the studied composition path. Two mechanisms that are responsible for this invariant behavior are discussed in detail, i.e., the interplay between kinetic and thermodynamic contributions to Fick diffusion coefficients and the presence of microscopic heterogeneities caused by hydrogen bonding. Experimental work alone cannot explain these mechanisms, while present simulations on the molecular level indicate structural changes and uniform intermolecular interactions between benzene and acetone molecules in the three ternary mixtures. The main diffusion coefficients of these ternary mixtures exhibit similarities with their binary subsystems. Analyses of radial distribution functions and hydrogen bonding statistics quantitatively evidence alcohol self-association and cluster formation, as well as component segregation. Furthermore, the excess volume of the mixtures is analyzed in the light of intermolecular interactions, further demonstrating the benefits of the simultaneous use of experiment and simulation. The proposed framework for studying diffusion coefficients of a set of ternary mixtures, where only one component varies, opens the way for further investigations and a better understanding of multicomponent diffusion. The presented numerical results may also give an impulse to the development of predictive approaches for multicomponent diffusion.
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Affiliation(s)
- Gabriela Guevara-Carrion
- Thermodynamics and Energy Technology, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
| | - Yuri Gaponenko
- Microgravity Research Center, Université Libre de Bruxelles, CP-165/62, Ave. F.D. Roosevelt, 50, B-1050 Brussels, Belgium
| | - Aliaksandr Mialdun
- Microgravity Research Center, Université Libre de Bruxelles, CP-165/62, Ave. F.D. Roosevelt, 50, B-1050 Brussels, Belgium
| | - Tatjana Janzen
- Thermodynamics and Energy Technology, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
| | - Valentina Shevtsova
- Microgravity Research Center, Université Libre de Bruxelles, CP-165/62, Ave. F.D. Roosevelt, 50, B-1050 Brussels, Belgium
| | - Jadran Vrabec
- Thermodynamics and Energy Technology, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
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23
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Ethanol-induced composite hydrogel based on propylene glycol alginate and zein: Formation, characterization and application. Food Chem 2018; 255:390-398. [DOI: 10.1016/j.foodchem.2018.02.072] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 01/12/2018] [Accepted: 02/13/2018] [Indexed: 11/19/2022]
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24
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Karthick N, Arivazhagan G. Molecular interactions in the complexes of toluene with butyronitrile: A DFT approach. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Hydrogen bond interactions in the binary solutions of ethyl acetate with nitrobenzene: Spectroscopic, theoretical and dielectric studies. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Kannan P, Karthick N, Mahendraprabu A, Shanmugam R, Elangovan A, Arivazhagan G. Red/blue shifting hydrogen bonds in acetonitrile-dimethyl sulphoxide solutions: FTIR and theoretical studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Karthick N, Kannan P, Mahendraprabu A, Arivazhagan G, Suganya N. Spectroscopic studies on the binary solutions of ethanol with 1,4-dioxane. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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