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Qamar Farooq M, Tryon-Tasson N, Biswas A, Anderson JL. Preparation of ternary hydrophobic magnetic deep eutectic solvents and an investigation into their physicochemical properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Li J, Farooq MQ, Petrich JW, Anderson JL, Smith EA. Fast and non-destructive determination of water content in ionic liquids at varying temperatures by Raman spectroscopy and multivariate regression analysis. Anal Chim Acta 2021; 1188:339164. [PMID: 34794575 DOI: 10.1016/j.aca.2021.339164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 11/26/2022]
Abstract
Imidazolium acetate ionic liquids (ILs) have been utilized as promising solvents in many applications that involve varying water content and temperature. These experimental variables affect the anion-cation intermolecular interactions, which in turn influence the performance of the ILs in these applications. This paper shows Raman spectroscopy can be used as an operando method to measure water content in IL solvents when simultaneous temperature changes may occur. The Raman spectra of 1-alkyl-3-methylimidazolium acetate ILs (alkyl chain length n = 2, 4, 6, 8) with varying water content (from 0.028 to 0.899 water mole fraction) and temperature (from 78.1 K to 423.1 K) were measured. Increasing the water content or decreasing the temperature of the tested ILs weakens the anion-cation intermolecular interactions. The water content of these ILs can be quantified even in conditions when the temperature is changing using Raman spectroscopy combined with multivariate regression analysis, including principal component regression (PCR), partial-least-squares regression (PLSR), and artificial neural networks (ANNs). The ANN model combined with partial-least-squares (PLS) achieved the highest prediction accuracy of water content in ILs at varying temperatures (RMSECV = 0.017, R2CV = 99.1%, RMSEP = 0.019, R2P = 98.8%, RPD = 8.93). Raman spectroscopy provides a potential fast non-destructive operando method to monitor the water content of ILs even in applications when the temperature may be simultaneously altered; this information can lead to the optimized use of these ILs in many applications.
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Affiliation(s)
- Jingzhe Li
- The Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011-3111, United States; Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, United States
| | - Muhammad Qamar Farooq
- The Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011-3111, United States; Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, United States
| | - Jacob W Petrich
- The Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011-3111, United States; Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, United States
| | - Jared L Anderson
- The Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011-3111, United States; Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, United States
| | - Emily A Smith
- The Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011-3111, United States; Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, United States.
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Farooq MQ, Zeger VR, Anderson JL. Comparing the extraction performance of cyclodextrin-containing supramolecular deep eutectic solvents versus conventional deep eutectic solvents by headspace single drop microextraction. J Chromatogr A 2021; 1658:462588. [PMID: 34662824 DOI: 10.1016/j.chroma.2021.462588] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 01/05/2023]
Abstract
A headspace single drop microextraction (HS-SDME) method coupled with high performance liquid chromatography was developed to compare the extraction of eighteen aromatic organic pollutants from aqueous solutions using cyclodextrin-based supramolecular deep eutectic solvents (SUPRADESs) and alkylammonium halide-based conventional deep eutectic solvents (DESs). Different derivatives of beta-cyclodextrin (β-CD) were employed as hydrogen bond acceptors (HBA) in SUPRADESs and the extraction performance investigated. SUPRADES comprised of the 20 wt% native β-CD HBA provided the highest enrichment factors of analytes compared to SUPRADESs comprised of other derivatives of β-CD (random methylated β-cyclodextrin, heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin, and 2-hydroxypropyl β-cyclodextrin). In addition, native β-CD and its derivatives were dissolved in the neat DESs and their effect on the extraction of analytes examined. Dissolution of 20 wt% native β-CD in the choline chloride ([Ch+][Cl-]):2Urea DES resulted in a significant increase in the extraction efficiencies of target analytes compared to the neat [Ch+][Cl-]:2Urea DES. Under optimum conditions, the extraction method required a solvent microdroplet of 6.5 μL, 1000 rpm stir rate, 30% (w/v) salt concentration, and a temperature of 40 °C. The tetrabutylammonium chloride: 2 lactic acid DES resulted in the highest enrichment factors while the [Ch+][Cl-]:2Urea DES had the lowest for most of the analytes among the evaluated solvents. The method provided limits of detection (LODs) down to 35 μg L-1. Furthermore, the developed method was applied for the analysis of spiked tap and lake water, where relative recoveries ranging from 83.7% ̶ 119.7% and relative standard deviations lower than 19.2% were achieved.
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Affiliation(s)
- Muhammad Qamar Farooq
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA; Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011, USA
| | - Victoria R Zeger
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
| | - Jared L Anderson
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA; Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011, USA.
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Abbasi NM, Farooq MQ, Anderson JL. Modulating solvation interactions of deep eutectic solvents formed by ammonium salts and carboxylic acids through varying the molar ratio of hydrogen bond donor and acceptor. J Chromatogr A 2021; 1643:462011. [PMID: 33799072 DOI: 10.1016/j.chroma.2021.462011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 12/31/2022]
Abstract
Deep eutectic solvents (DESs) have gained increasing popularity in separation science due to the fact that their physico-chemical properties can be easily fine-tuned by varying the type or ratio of hydrogen bond acceptor (HBA) and hydrogen bond donor (HBD). While it is well-known that the molar ratio of HBA/HBD affects the melting point of a eutectic mixture, much less is understood regarding its effect on the magnitude of individual solvation interactions. This is largely due to the fact that established solvatochromic dye methods lack sensitivity when the HBA/HBD ratio is varied slightly in a eutectic mixture. Herein, this study is the first to measure the variation of DES solvation interactions with small changes in the molar ratio of HBA/HBD using inverse gas chromatography (IGC). Solute-solvent interactions of three different DES systems comprised of ammonium salts and organic acids were examined. The probe molecules were studied for 18 eutectic mixtures of varied HBA and HBD composition. DES hydrogen bond basicity, hydrogen bond acidity, and dispersive-type interactions exhibited the greatest change when the molar ratio of HBA/HBD was varied in the eutectic mixture. Results from this study demonstrate that the HBA/HBD ratio can be used to modulate the solvation characteristics for this class of DESs in separations and that the stoichiometric ratio of the HBA/HBD is important in ensuring their reproducible preparation.
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Affiliation(s)
- Nabeel Mujtaba Abbasi
- Ames Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Muhammad Qamar Farooq
- Ames Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Jared L Anderson
- Ames Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.
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Farooq MQ, Abbasi NM, Anderson JL. Deep eutectic solvents in separations: Methods of preparation, polarity, and applications in extractions and capillary electrochromatography. J Chromatogr A 2020; 1633:461613. [DOI: 10.1016/j.chroma.2020.461613] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 02/07/2023]
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Dogar S, Nayab S, Farooq MQ, Said A, Kamran R, Duran H, Yameen B. Utilization of Biomass Fly Ash for Improving Quality of Organic Dye-Contaminated Water. ACS Omega 2020; 5:15850-15864. [PMID: 32656406 PMCID: PMC7345398 DOI: 10.1021/acsomega.0c00889] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/04/2020] [Indexed: 05/12/2023]
Abstract
Development of innovative methodologies to convert biomass ash into useful materials is essential to sustain the growing use of biomass for energy production. Herein, a simple chemical modification approach is employed to functionalize biomass fly ash (BFA) with 3-aminopropyltriethoxy silane (APTES) to develop an inexpensive and efficient adsorbent for water remediation. The amine-functionalized BFA (BFA-APTES) was fully characterized by employing a range of characterization techniques. Adsorption behavior of BFA-APTES was evaluated against two anionic dyes, namely, alizarin red S (ARS) and bromothymol blue (BTB). In the course of experimental data analysis, the computation tools of data fitting for linear and nonlinear form of Langmuir, Freundlich, and the modified Langmuir-Freundlich adsorption isotherms were used with the aid of Matlab R2019b. In order to highlight the misuse of linearization of adsorption models, the sum of the squares of residues (SSE) values obtained from nonlinear models are compared with R 2 values obtained from the linear regression. The accuracy of the data fitting was checked by the use of SSE as an error function instead of the coefficient of determination, R 2. The dye adsorption capacity of BFA-APTES was also compared with the nonfunctionalized BFA. The maximum adsorption capacities of BFA-APTES for ARS and BTB dye molecules were calculated to be around 13.42 and 15.44 mg/g, respectively. This value is approximately 2-3 times higher than the pristine BFA. A reasonable agreement between the calculated and experimental values of q e obtained from the nonlinear form of kinetic models verified the importance of using equations in their original form. The experimentally calculated thermodynamic parameters including molar standard Gibbs free energy (Δad G m 0) and molar standard enthalpy change (Δad H m 0) reflected that the process of adsorption of dye molecules on the BFA-APTES adsorbent was spontaneous and exothermic in nature. Moreover, the used BFA-APTES adsorbent could be regenerated and reused for several cycles with significant dye adsorption capacity. The remediation capability of the BFA-APTES adsorbent against ARS dye was also demonstrated by packing a small column filled with the BFA-APTES adsorbent and passing a solution of ARS through it. Overall, we provide a simple and scalable route to convert BFA into an efficient adsorbent for water remediation applications.
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Affiliation(s)
- Safana Dogar
- Department
of Chemistry & Chemical Engineering, Syed Babar Ali School of
Science and Engineering (SBASSE), Lahore
University of Management Sciences (LUMS), Lahore 54792, Pakistan
| | - Sana Nayab
- Department
of Chemistry & Chemical Engineering, Syed Babar Ali School of
Science and Engineering (SBASSE), Lahore
University of Management Sciences (LUMS), Lahore 54792, Pakistan
| | - Muhammad Qamar Farooq
- Department
of Chemistry & Chemical Engineering, Syed Babar Ali School of
Science and Engineering (SBASSE), Lahore
University of Management Sciences (LUMS), Lahore 54792, Pakistan
| | - Amir Said
- Bulleh
Shah Packaging (BSP) Pvt. Ltd., Kot Radha Kishan Road, Kasur, Pakistan
| | - Raheel Kamran
- Bulleh
Shah Packaging (BSP) Pvt. Ltd., Kot Radha Kishan Road, Kasur, Pakistan
| | - Hatice Duran
- Department
of Materials Science & Nanotechnology Engineering, TOBB University of Economics and Technology, Sögütözü
Cad. 43, 06560 Ankara, Turkey
| | - Basit Yameen
- Department
of Chemistry & Chemical Engineering, Syed Babar Ali School of
Science and Engineering (SBASSE), Lahore
University of Management Sciences (LUMS), Lahore 54792, Pakistan
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Mendivelso-Pérez DL, Farooq MQ, Santra K, Anderson JL, Petrich JW, Smith EA. Diffusional Dynamics of Tetraalkylphosphonium Ionic Liquid Films Measured by Fluorescence Correlation Spectroscopy. J Phys Chem B 2019; 123:4943-4949. [DOI: 10.1021/acs.jpcb.9b01476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Deyny L. Mendivelso-Pérez
- The Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Muhammad Qamar Farooq
- The Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Kalyan Santra
- The Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Jared L. Anderson
- The Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Jacob W. Petrich
- The Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Emily A. Smith
- The Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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Chand D, Farooq MQ, Pathak AK, Li J, Smith EA, Anderson JL. Magnetic ionic liquids based on transition metal complexes with N-alkylimidazole ligands. NEW J CHEM 2019. [DOI: 10.1039/c8nj05176c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Nickel(ii), cobalt(ii) and manganese(ii) N-alkylimidazole bis[(trifluoromethyl)sulfonyl]imide magnetic ionic liquids were synthesized from their chloride intermediates and their physicochemical properties studied.
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Affiliation(s)
- Deepak Chand
- Department of Chemistry
- Iowa State University
- Ames
- USA
| | | | - Arjun K. Pathak
- Division of Materials Science and Engineering
- Ames Laboratory
- Iowa State University
- Ames
- USA
| | - Jingzhe Li
- Department of Chemistry
- Iowa State University
- Ames
- USA
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Farooq MQ, Chand D, Odugbesi GA, Varona M, Mudryk Y, Anderson JL. Investigating the effect of ligand and cation on the properties of metal fluorinated acetylacetonate based magnetic ionic liquids. NEW J CHEM 2019. [DOI: 10.1039/c9nj02595b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The effect of chemical structure on various physiochemical properties including thermal stability, solvent miscibility, magnetic susceptibility and viscosity is studied for acetylacetone based magnetic ionic liquids.
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Affiliation(s)
| | - Deepak Chand
- Department of Chemistry
- Iowa State University
- Ames
- USA
| | | | | | - Yaroslav Mudryk
- Division of Materials Science and Engineering
- Ames Laboratory
- Iowa State University
- Ames
- USA
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