scholarly journals Evaluation of Capability of Some Amino Acid-based Poly (Ionic Liquid)s as Biocompatible Agent for Co2 Absorption

2021 ◽  
Author(s):  
Narmin Noorani ◽  
Abbas Mehrdad
Keyword(s):  
Ionic Liquid ◽  
Amino Acid ◽  
Absorption Capacity ◽  
Co2 Absorption ◽  
Absorption Mechanism ◽  
Chemical Absorption ◽  
Ft Ir ◽  
Poly Ionic Liquid ◽  
Reaction Equilibrium ◽  
Ft Ir Spectroscopy

Abstract In this study, seven amino acid-based poly(ionic liquid)s (AAPILs) such as poly(1-butyl-3-vinylimidazolium glycinate), P[VBIm][Gly], poly (1-butyl-3-vinylimidazolium alaninate), P[VBIm][Ala], poly(1-butyl-3-vinylimidazolium valinate), P[VBIm][Val], poly(1-butyl-3-vinylimidazolium prolinate) P[VBIm][Pro], poly(1-butyl-3-vinylimidazolium hisdinate), P[VBIm][His], poly(1-butyl-3-vinylimidazolium lysinate), P[VBIm][Lys], and poly(1-butyl-3-vinylimidazolium arginate), P[VBIm][Arg] have been synthesized, characterized, and their CO2 absorption capacities were investigated using quartz crystal microbalance (QCM) at temperature range 288.15–308.15 and pressures up to 5 bar. Based on the absorption mechanism, the reaction equilibrium thermodynamic model is applied to correlating the experimental CO2 absorption capacities. The reaction equilibrium constant and Henry’s law constant were calculated to evaluate the efficiency of the AAPILs for CO2 absorption. In the investigated AAPILs, the CO2 absorption capacity was as follows: P[VBIm][Arg] > P[VBIm][Lys] > P[VBIm][His] > P[VBIm][Pro] > P[VBIm][Gly] > P[VBIm][Val] > P[VBIm][Ala]. The accessibility of available more amine groups in AAPIL with arginate anion is the main factor for the high CO2 absorption capacity. Also, chemical absorption of CO2 via carbamate formation was corroborated by FT-IR spectroscopy.

scholarly journals Effect of Swelling on Carbon Dioxide Adsorption by Poly(Ionic Liquid)s

2012 ◽  
Vol 30 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Jia M. Zhu ◽  
Kai G. He ◽  
Hu Zhang ◽  
Feng Xin
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Adsorption Capacity ◽  
Carbon Dioxide Adsorption ◽  
Ft Ir ◽  
Poly Ionic Liquid ◽  
Porous Poly ◽  
Scanning Electron ◽  
Ft Ir Spectroscopy

A two-step swelling method was used for preparing porous poly(ionic liquid)s based on the copolymer of 1-allyl-3-methylimidazolium tetrafluoroborate and acrylonitrile P([AMIM]BF4-AN), the copolymer of 1-allyl-3-methylimidazolium hexafluorophosphate and acrylonitrile P([AMIM]PF6-AN), and poly(vinylbenzyl trimethylammonium) tetrafluoroborate P[VBTMA]BF4. The characteristics of the polymers were assessed via FT-IR spectroscopy, scanning electron microscopy (SEM) and CO2 adsorption. The results indicated that the seed-swelling method was more effective in improving the CO2 adsorption capacity of imidazolium-based P([AMIM]BF4-AN) containing the [BF4]− anion. Exchanging [BF4]− for [PF6]− in the imidazolium-based poly(ionic liquid) led to almost the same CO2 adsorption as exhibited by the corresponding non-swelling copolymer. Moreover, the CO2 adsorption capacity of ammonium-based P[VBTMA]BF4 when treated by the seed-swelling method decreased considerably.

scholarly journals Performance and pressure drop of CO2 absorption into task-specific and halide-free ionic liquids in a microchannel

2021 ◽  
Author(s):  
Daofan Ma ◽  
Chunying Zhu ◽  
Taotao Fu ◽  
Youguang Ma ◽  
Xigang Yuan
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Pressure Drop ◽  
Absorption Rate ◽  
13C Nmr Spectroscopy ◽  
Co2 Absorption ◽  
Absorption Mechanism ◽  
Chemical Absorption ◽  
Two Phase ◽  
Gas Liquid Flow

The gas-liquid two-phase flow pattern, absorption rate and pressure drop of CO2 absorbed into the aqueous solution of the task-specific ionic liquid (1-aminopropyl-3-methylimidazole tetrafluoroborate [Apmim][BF4] and 1- hydroxyethyl-3-methylimidazole tetrafluoroborate [OHemim][BF4]) and halide-free ionic liquid 1- butyl -3-methylimidazolium methylsulfate [Bmim][CH3SO4] were investigated in a microreactor. The absorption mechanism of the three ionic liquids was analyzed employing the 13C NMR spectroscopy. The [Apmim][BF4] was found to have the best ability of CO2 capture compared to the other two ionic liquids, as chemical absorption occurred between [Apmim][BF4] and CO2, while only physical absorption took place between [OHemim][BF4] / [Bmim][CH3SO4] and CO2. The sequence of CO2 absorption rate in three ionic liquid aqueous solutions is: [Apmim][BF4] > [Bmim][CH3SO4] >[OHemim][BF4]. Furthermore, the effects of gas-liquid flow rate and ionic liquids concentration on CO2 absorption rate and pressure drop were studied, the pressure drop models based on various flow patterns were proposed.

scholarly journals Silica-Coated Magnetic Nanocomposites for Pb2+ Removal from Aqueous Solution

2020 ◽  
Vol 10 (8) ◽  
pp. 2726 ◽  
Author(s):  
Roxana Nicola ◽  
Otilia Costişor ◽  
Mihaela Ciopec ◽  
Adina Negrea ◽  
Radu Lazău ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Adsorption Capacity ◽  
Aqueous Media ◽  
Physical Stability ◽  
Absorption Capacity ◽  
Maximum Adsorption Capacity ◽  
X Ray Diffraction ◽  
Similar Materials ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Magnetic iron oxide-silica shell nanocomposites with different iron oxide/silica ratio were synthesized and structurally characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), small-angle neutron scattering, magnetic and N2-sorption studies. The composite that resulted with the best properties in terms of contact surface area and saturation of magnetization was selected for Pb2+ adsorption studies from aqueous media. The material presented good absorption capacity (maximum adsorption capacity 14.9 mg·g−1) comparable with similar materials presented in literature. Its chemico-physical stability and adsorption capacity recommend the nanocomposite as a cheap adsorbent material for lead.

Poly(ionic liquid)s as new materials for CO2 absorption

2005 ◽  
Vol 43 (22) ◽  
pp. 5477-5489 ◽  
Author(s):  
Jianbin Tang ◽  
Huadong Tang ◽  
Weilin Sun ◽  
Maciej Radosz ◽  
Youqing Shen
Keyword(s):  
Ionic Liquid ◽  
Co2 Absorption ◽  
New Materials ◽  
Poly Ionic Liquid

scholarly journals Self-assembly of a short-chain ionic liquid within deep eutectic solvents

RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 7969-7979 ◽  
Author(s):  
Manoj Kumar Banjare ◽  
Kamalakanta Behera ◽  
Manmohan L. Satnami ◽  
Siddharth Pandey ◽  
Kallol K. Ghosh
Keyword(s):  
Ionic Liquid ◽  
Ir Spectroscopy ◽  
Self Assembly ◽  
Antidepressant Drug ◽  
Deep Eutectic Solvents ◽  
Drug Binding ◽  
Short Chain ◽  
Micellar Systems ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Self-assembly of short-chain imidazolium-based ILs within DESs have been investigated by fluorescence, UV-Vis, DLS and FT-IR spectroscopy. Further, these micellar systems [Bmim][OS]-DESs are utilized to study the IL-drug binding of an antidepressant drug (PH).

Poly(ionic liquid)s: a new material with enhanced and fast CO2 absorption

2005 ◽  
pp. 3325 ◽  
Author(s):  
Jianbin TangVisiting Ph.D. student to the U ◽  
Huadong Tang ◽  
Weilin Sun ◽  
Henry Plancher ◽  
Maciej Radosz ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Co2 Absorption ◽  
New Material ◽  
Poly Ionic Liquid

Determination of Glucose and Cellobiose Dissolved in the Ionic Liquid 1-Ethyl-3-Methylimidazolium Acetate Using Fourier Transform Infrared Spectroscopy

2009 ◽  
Vol 63 (9) ◽  
pp. 1041-1049 ◽  
Author(s):  
Johannes Kiefer ◽  
Katharina Obert ◽  
Jürgen Fries ◽  
Andreas Bösmann ◽  
Peter Wasserscheid ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Measured Quantity ◽  
Carbohydrate Concentration ◽  
Quantitative Measurements ◽  
Accuracy And Precision ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

The conversion of biogenic carbohydrate feedstock to chemicals or energy equivalents is a promising approach to solve the problem of limited fossil fuel reserves. Some concepts to accomplish these transformations are based on ionic liquids (ILs) due to their ability to dissolve biopolymers, such as cellulose, and even complex biopolymer mixtures, such as wood. However, concerning control of such conversions, a reliable tool for process analytics is required. In this paper we demonstrate the applicability of Fourier transform infrared (FT-IR) spectroscopy to perform quantitative concentration measurements of glucose and cellobiose as two examples of carbohydrates dissolved in the room-temperature ionic liquid [EMIM][OAc] (1-ethyl-3-methylimidazolium acetate). For this purpose, binary mixtures in the range 0–20 wt% have been studied. A previously developed method for the data analysis, which was based on the Beer–Lambert relation, has been universalized by employing empirical correlations between the measured quantity (i.e., extinction) and the carbohydrate concentration. In the entire spectral range under investigation (500–4000 cm−1) numerous individual wavenumbers have been identified, allowing quantitative measurements with high accuracy and precision.

Capture of CO2 by [bmim]PF6 Ionic Liquid under Normal Temperature and Pressure Conditions

2011 ◽  
Vol 347-353 ◽  
pp. 116-119
Author(s):  
Qiang Wei Li ◽  
Yi Zhao ◽  
Li Dong Wang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Low Temperature ◽  
Absorption Capacity ◽  
Green Solvent ◽  
Absorption Process ◽  
Chemical Absorption ◽  
Saturated Absorption ◽  
Absorption Time ◽  
Temperature And Pressure

Subscript textCO2 emission control is an important issue, in which chemical absorption process has reached the widest application. Ionic liquid is a kind of green solvent and expected to take the place of traditional amine absorbents as for its better characteristics. In this paper, two iminazole base ionic liquids were synthesized, including of bromide 1-butyl-3-methylimidazo ([bmim]Br) and 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6). The performance of CO2 absorption by [bmim]PF6 and [bmim]Br were compared under the same other conditions. Subscript textIt indicates that [bmim]PF6 has more absorption capacity and less saturated absorption time under low temperature, which provides reference for CO2 control by ionic liquid.

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