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Sharaby MR, Soliman EA, Khalil R. Halochromic smart packaging film based on montmorillonite/polyvinyl alcohol-high amylose starch nanocomposite for monitoring chicken meat freshness. Int J Biol Macromol 2024; 258:128910. [PMID: 38141710 DOI: 10.1016/j.ijbiomac.2023.128910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 12/10/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Polyvinyl alcohol (PVA) was blended with high amylose starch (HAS) at a ratio of 3:1, and reinforced with montmorillonite (MMT K10) at different concentrations (1, 2, 5, and 7 % w/w of polymers) and anthocyanins (ANT) to develop an active and smart packaging film. MMT addition enhanced the film's mechanical, barrier, thermal, and water resistance properties. Incorporating ANT extracted from roselle calyx into the optimal nanocomposite film (MMT/PVA-HAS II) increased the films' antioxidant, pH-response, and antibacterial properties. FTIR, XRD, and SEM confirmed the intermolecular interactions and even distribution of ANT and MMT in the film matrix. Release rate of ANT was dependent on type of simulant, with higher rate in aqueous solutions compared to alcoholic/fatty food simulants, and cytotoxicity evaluation proved safety of films for food packaging applications. Storage experiments confirmed the potential applicability of the novel halochromic smart film as a promising candidate for monitoring chicken spoilage under abusive storage conditions.
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Affiliation(s)
- Muhammed R Sharaby
- Basic and Applied Sciences (BAS) Institute, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab city, Alexandria 21934, Egypt; Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt.
| | - Emad A Soliman
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
| | - Rowaida Khalil
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
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2
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Hamidi F, Baghani AN, Kasraee M, Salari M, Mehdinejad MH. Modeling, optimization and efficient use of MMT K 10 nanoclay for Pb (II) removal using RSM, ANN and GA. Sci Rep 2023; 13:8434. [PMID: 37225791 DOI: 10.1038/s41598-023-35709-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 05/22/2023] [Indexed: 05/26/2023] Open
Abstract
Regarding the long-term toxic effects of Pb (II) ions on human health and its bioaccumulation property, taking measures for its reduction in the environment is necessary. The MMT-K10 (montmorillonite-k10) nanoclay was characterized by XRD, XRF, BET, FESEM, and FTIR. The effects of pH, initial concentrations, reaction time, and adsorbent dosage were studied. The experimental design study was carried out with RSM-BBD method. Results prediction and optimization were investigated with RSM and artificial neural network (ANN)-genetic algorithm (GA) respectively. The RSM results showed that the experimental data followed the quadratic model with the highest regression coefficient value (R2 = 0.9903) and insignificant lack of fit (0.2426) showing the validity of the Quadratic model. The optimal adsorption conditions were obtained at pH 5.44, adsorbent = 0.98 g/l, concentration of Pb (II) ions = 25 mg/L, and reaction time = 68 min. Similar optimization results were observed by RSM and artificial neural network-genetic algorithm methods. The experimental data revealed that the process followed the Langmuir isotherm and the maximum adsorption capacity was 40.86 mg/g. Besides, the kinetic data indicated that the results fitted with the pseudo-second-order model. Hence, the MMT-K10 nanoclay can be a suitable adsorbent due to having a natural source, simple and inexpensive preparation, and high adsorption capacity.
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Affiliation(s)
- Farshad Hamidi
- Department of Environmental Health Engineering, School of Public Health, Environmental Health Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abbas Norouzian Baghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahboobeh Kasraee
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Salari
- Department of Environmental Health Engineering, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Mohammad Hadi Mehdinejad
- Department of Environmental Health Engineering, School of Public Health, Environmental Health Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
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Asghari Dilmani S, Koç S, Çakır D, Gümüşderelioğlu M. Organomodified nanoclay with boron compounds is improving structural and antibacterial properties of nanofibrous matrices. Eur J Pharm Biopharm 2023; 184:125-138. [PMID: 36708972 DOI: 10.1016/j.ejpb.2023.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
In this study, nanofibrous polymeric matrices were successfully developed with nanoclay, montmorillonite (MMT) and various boron (B) compounds, which were known to have positive effects on the wound healing with elevated antibacterial properties. For this purpose, MMT was modified with quaternary ammonium salt, trimethyl octadecyl ammonium bromide (TMOD), and boron compounds, boron nitride (BN), zinc borate (ZB), or phenylboronic acid (PBA) were adsorbed on organomodified MMT (OMMT). Then, poly (lactic acid) (PLA) based nanofibrous PLA-OMMT/B composites were fabricated via electrospinning. Modification of MMT nanoparticles with TMOD occurred through ion-exchange reaction and led to better homogenous fibrous structures which exhibited dramatic inhibition for gram-positive bacteria. Moreover, composites with ZB and PBA demonstrated both bacteriostatic and bactericidal effects for gram-positive and gram-negative bacteria. The chemical structures of the matrices were evaluated through ATR-FTIR and supported the intercalated composite formation. The thermal and mechanical stabilities of PLA matrices were also enhanced after OMMT and B incorporation. The lowest breaking strain value was recorded for PLA-OMMT/PBA composite compared to other B composites. The 100% and 50% extracts of the PLA-OMMT matrices showed modest cytotoxic effect on the human dermal fibroblasts (NHDF) on the second day culture that probably originated from TMOD. These results demonstrated that PLA-OMMT/B matrices, especially PBA including matrices, can be used as replaceable wound dressings that have limited interaction with cells but exhibit antibacterial activity and support the early stages of wound healing both morphologically and chemically.
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Affiliation(s)
- Sara Asghari Dilmani
- Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara, Turkey; Bioengineering Department, Hacettepe University, Beytepe, Ankara, Turkey
| | - Sena Koç
- Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara, Turkey; Chemical Engineering Department, Hacettepe University, Beytepe, Ankara, Turkey
| | - Demet Çakır
- Graduate School of Science and Engineering, Hacettepe University, Beytepe, Ankara, Turkey; Chemical Engineering Department, Hacettepe University, Beytepe, Ankara, Turkey
| | - Menemşe Gümüşderelioğlu
- Bioengineering Department, Hacettepe University, Beytepe, Ankara, Turkey; Chemical Engineering Department, Hacettepe University, Beytepe, Ankara, Turkey.
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Kedang YI, Priyangga A, Atmaja L, Santoso M. Characteristics and performance studies of a composite polymer electrolyte membrane based on chitosan/glycerol-sulfosuccinic acid modified montmorillonite clay. RSC Adv 2022; 12:30742-30753. [PMID: 36349150 PMCID: PMC9606734 DOI: 10.1039/d2ra04560e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2023] Open
Abstract
In this study, chitosan (CS) doped sulphosuccinic acid (SSA)-glycerol (Gly) and modified montmorillonite clay (MMT) were successfully fabricated. The membranes were prepared using the solution casting method. Analysis of morphology and topography using scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed that the composite membrane with 3 wt% MMT filler, namely CS/MMT-1, possessed the most adequate surface roughness compared to the other fabricated membranes. Furthermore, mechanical characterization of the CS/MMT-1 composite membrane showed that the membrane achieved satisfactory mechanical strength with a value of 39.23 MPa. Proton conductivity of the composite membranes increased as the temperature was increased. The proton conductivity of the CS/MMT-1 composite membrane increased from 1.75 × 10-2 S cm-1 at 25 °C up to 3.57 × 10-2 S cm-1 at 80 °C. The CS/MMT-1 composite membrane also exhibited a methanol permeability value that was significantly lower than that of pristine CS, namely 1.22 × 10-7 cm2 s-1 and 12.49 × 10-7 cm2 s-1, respectively. The results of this study show that the fabricated composite membrane can be used as an alternative polymer electrolyte membrane (PEM) for DMFC applications.
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Affiliation(s)
- Yohana Ivana Kedang
- Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember Surabaya 60111 Indonesia
- Department of Chemistry, Agriculture Faculty, Universitas Timor Kefamenanu 85613 Indonesia
| | - Arif Priyangga
- Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember Surabaya 60111 Indonesia
| | - Lukman Atmaja
- Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember Surabaya 60111 Indonesia
| | - Mardi Santoso
- Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember Surabaya 60111 Indonesia
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Nanoclay Reinforced Ternary Blends Based on Biodegradable Polymers for Drug Delivery Application. Int J Biomater 2022; 2022:6585305. [PMID: 36119660 PMCID: PMC9473880 DOI: 10.1155/2022/6585305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/22/2022] Open
Abstract
In this study, ternary blends based on chitosan, polyvinyl alcohol, and polyethylene glycol reinforced with organically modified montmorillonite (nanoclay) clay were synthesized. These ternary blends were evaluated as transdermal drug delivery patches using tramadol as a model drug. The FTIR study showed interaction among important functional groups and compatibility among the mixing components. Among drug-loaded formulations, composite MA12 shows maximum thermal stability with 27.9% weight residue at 540°C. The prepared formulations exhibited crystalline nature as observed by XRD analysis. SEM studies revealed that there are no gaps and cracks in prepared films and nanoclay was found dispersed in the formulations. The swelling ratio was higher in pH 1.2 as compared to pH 4.5 and pH 6.8 buffers, and there was an increase in swelling with an increase in PVA concentration. Moreover, the drug release test performed in phosphate buffer pH 6.8 showed that tramadol release from nanocomposite films increases with an increase in PEG concentration. Permeation studies indicated that the rate of permeation increased with a decrease in PVA concentration. The permeation rate was found to be higher for samples without nanoclay. The overall results suggest nanocomposite films as excellent candidates for transdermal drug delivery application.
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Sarkar B, Das K, Jyoti Ghosh A, Islam R, Saha T, Prasad E, Gardas RL. Poly(alkyl ether) based ionic liquid–γ-cyclodextrin based inclusion complex and antibacterial activity of the inclusion complex. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Li F, Laaksonen A, Zhang X, Ji X. Rotten Eggs Revaluated: Ionic Liquids and Deep Eutectic Solvents for Removal and Utilization of Hydrogen Sulfide. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Fangfang Li
- Energy Engineering, Division of Energy Science, Luleå University of Technology, 97187 Luleå, Sweden
| | - Aatto Laaksonen
- Energy Engineering, Division of Energy Science, Luleå University of Technology, 97187 Luleå, Sweden
- Division of Physical Chemistry, Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm 10691, Sweden
- Center of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni”Institute of Macromolecular Chemistry, Iasi 700469, Romania
- State Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiangping Zhang
- CAS Key Laboratory of Green Process and Engineering, Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyan Ji
- Energy Engineering, Division of Energy Science, Luleå University of Technology, 97187 Luleå, Sweden
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8
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Sandomierski M, Zielińska M, Adamska K, Patalas A, Voelkel A. Calcium montmorillonite as potential carrier in release of bisphosphonates. NEW J CHEM 2022. [DOI: 10.1039/d1nj04268h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There is a strong need to search for more effective bisphosphonates carriers which will lead to increased bioavailability of bone tissue engineering. Montmorillonite and calcium montmorillonite were used as risedronate...
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9
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Agafonov AV, Ramenskaya LM, Grishina EP, Kudryakova NO. Cation effects on the properties of halloysite-confined bis(trifluoromethylsulfonyl)imide based ionic liquids. RSC Adv 2021; 11:38605-38615. [PMID: 35493252 PMCID: PMC9044193 DOI: 10.1039/d1ra05466j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/22/2021] [Indexed: 11/21/2022] Open
Abstract
Four types of ionic liquids (ILs) of [X]TFSI ([X]+ is a cation such as 1-butyl-3-methylimidazolium BMIm+, 1-butyl-1-methylpyrrolidinium BMPyrr+, 1-butyl-1-methylpiperidinium BMPip+ and methyltrioctylammonium MOc3Am+ and TFSI- is the bis(trifluoromethylsulfonyl)imide anion) were confined in halloysite nanoclay (Hal) at an excess ionic liquid concentration (IL : Hal ∼55 : 45 wt%) and studied by X-ray diffraction, TG, DSC analysis and FTIR spectroscopy. It was found that the physicochemical properties of ILs trapped by halloysite at maximum loading are similar to those of bulk ILs and change depending on the cation type and size. The cold crystallization temperature (T cc) and melting point (T m) of the crystalline mesophase in confined BMIm+ and BMPyrr+ ionic liquids are higher than in the bulk ones, while in the amorphous BMPyrr+ mesophase, the T cc and T m values decrease by 9.7 and 14.2 °C, respectively. Confined BMPip+ and MOc3Am+ only have the glass transition temperature (T g), which increases by 1.5 and 8.0 °C, respectively, compared to bulk ILs. The onset decomposition temperature (T d) decreases by 106.5, 40.7, 19.0 and 7.7 °C in BMIm+, BMPip+, BMPyrr+ and MOc3Am+, respectively. The changes in the properties are explained by the cation and anion interaction with halloysite, as well as by the transformation of the ionic liquid structure. It is found that in this case the amount of the TFSI- anion trans-conformer increases in the following order: BMIm+ > BMPyrr+ ∼ BMPip+ >> MOc3Am+.
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Affiliation(s)
- A V Agafonov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences Ivanovo Russia +7-4932-336237 +7-4932-336259
| | - L M Ramenskaya
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences Ivanovo Russia +7-4932-336237 +7-4932-336259
| | - E P Grishina
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences Ivanovo Russia +7-4932-336237 +7-4932-336259
| | - N O Kudryakova
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences Ivanovo Russia +7-4932-336237 +7-4932-336259
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10
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Bhuyan P, Bhuyan AJ, Gogoi PJ, Mahanta A, Tamuly C, Saikia L. Pd–NPs@MMT–K10 Catalysis of Suzuki–Miyaura Cross-coupling Reaction: In Situ Generation and Ex Situ Use. Catal Letters 2021. [DOI: 10.1007/s10562-021-03841-z] [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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11
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Alekseeva OV, Shibaeva VD, Noskov AV, Ivanov VK, Agafonov AV. Enhancing the Thermal Stability of Ionogels: Synthesis and Properties of Triple Ionic Liquid/Halloysite/MCC Ionogels. Molecules 2021; 26:6198. [PMID: 34684781 PMCID: PMC8538352 DOI: 10.3390/molecules26206198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/04/2021] [Accepted: 10/09/2021] [Indexed: 11/17/2022] Open
Abstract
In this study, an ionic liquid (IL), 1-butyl-3-methylimidazolium acetate, was used to prepare ionogels with microcrystalline cellulose (MCC) and halloysite (Hal). SEM, XRD, TG, DSC, FTIR spectroscopy, conductometry and mechanical tests were used to study the morphology, structure, thermal behaviour and electrophysical and mechanical characteristics of synthesised ionogels. XRD analysis showed a slight decrease in the interlayer space of halloysite in ionogels containing MCC, which may have been associated with the removal of residual water molecules resulting from hydrophilic IL anions and polymer macromolecules. A change in conductivity and glass-transition temperature of the ionic liquid was revealed due to intercalation into halloysite (a confinement effect) and modification with cellulose. For triple IL/Hal/MCC ionogels, the characteristic thermal degradation temperatures were higher than the corresponding values for IL/Hal composites. This indicates that the synthesised IL/Hal/MCC ionogels are characterised by a greater thermal stability than those of IL/Hal systems.
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Affiliation(s)
- Olga V. Alekseeva
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia; (O.V.A.); (V.D.S.); (A.V.A.)
| | - Valeriya D. Shibaeva
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia; (O.V.A.); (V.D.S.); (A.V.A.)
| | - Andrew V. Noskov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia; (O.V.A.); (V.D.S.); (A.V.A.)
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 117901 Moscow, Russia;
| | - Alexander V. Agafonov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia; (O.V.A.); (V.D.S.); (A.V.A.)
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Ozola-Davidane R, Burlakovs J, Tamm T, Zeltkalne S, Krauklis AE, Klavins M. Bentonite-ionic liquid composites for Congo red removal from aqueous solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116373] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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13
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Ahmad A, Mahmood H, Mansor N, Iqbal T, Moniruzzaman M. Ionic liquid assisted polyetheretherketone‐multiwalled carbon nanotubes nanocomposites: An environmentally friendly approach. J Appl Polym Sci 2021. [DOI: 10.1002/app.50159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Aqeel Ahmad
- Department of Chemical Engineering Universiti Teknologi PETRONAS Bandar Seri Iskandar, Perak Darul Ridzuan Malaysia
- Center of Research in Ionic Liquids (CORIL) Universiti Teknologi PETRONAS Bandar Seri Iskandar, Perak Darul Ridzuan Malaysia
| | - Hamayoun Mahmood
- Department of Chemical, Polymer and Composite Materials Engineering University of Engineering and Technology (UET) Lahore Pakistan
| | - Nurlidia Mansor
- Department of Chemical Engineering Universiti Teknologi PETRONAS Bandar Seri Iskandar, Perak Darul Ridzuan Malaysia
| | - Tanveer Iqbal
- Department of Chemical, Polymer and Composite Materials Engineering University of Engineering and Technology (UET) Lahore Pakistan
| | - Muhammad Moniruzzaman
- Department of Chemical Engineering Universiti Teknologi PETRONAS Bandar Seri Iskandar, Perak Darul Ridzuan Malaysia
- Center of Research in Ionic Liquids (CORIL) Universiti Teknologi PETRONAS Bandar Seri Iskandar, Perak Darul Ridzuan Malaysia
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Noorhisham NA, Amri D, Mohamed AH, Yahaya N, Ahmad NM, Mohamad S, Kamaruzaman S, Osman H. Characterisation techniques for analysis of imidazolium-based ionic liquids and application in polymer preparation: A review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115340] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Imidazole-functionalized nitrogen-rich Mg-Al-CO3 layered double hydroxide for developing highly crosslinkable epoxy with high thermal and mechanical properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125826] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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16
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Agafonov A, Kudryakova N, Ramenskaya L, Grishina E. The confinement and anion type effect on the physicochemical properties of ionic liquid/halloysite nanoclay ionogels. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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17
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Agafonov A, Shibaeva V, Kraev A, Guseinov S, Ramenskaya L, Kudryakova N, Grishina E. Effect of synthesis conditions on the properties of an ionic liquid in the 1-butyl-3-methylimidazolium acetate - Na-bentonite ionogel. Steric stabilization and confinement. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113703] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Noskov AV, Alekseeva OV, Shibaeva VD, Agafonov AV. Synthesis, structure and thermal properties of montmorillonite/ionic liquid ionogels. RSC Adv 2020; 10:34885-34894. [PMID: 35514371 PMCID: PMC9056872 DOI: 10.1039/d0ra06443b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 08/27/2020] [Indexed: 11/21/2022] Open
Abstract
Sodium montmorillonite (Na-MMT) was synthesized as a result of two-stage processing of natural bentonite (Bent), and its particle-size distribution, structure and morphology were studied. It was found that the two-stage processing of the original clay resulted in a significant increase in the specific surface area (from 72 to 120 m2 g-1). The prepared Na-MMT powder was modified by two ionic liquids (ILs), namely, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMImNTf2) and 1-butyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide (BMImNTf2). Several methods, such as SEM, XRD, TG, DSC, FTIR spectroscopy were used to study the structure and thermal behavior of the produced ionogels. The effects of the IL cation on thermal characteristics of the Na-MMT/IL ionogels were studied. Using the DSC, characteristic temperatures of glass transition, crystallization and melting were determined for Na-MMT/IL composites. Taking into account the literature data and using the method of thermogravimetric analysis, it was shown that ionogel formation was accompanied by a decrease in the thermal stability of the IL.
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Affiliation(s)
- Andrew V Noskov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Russia
| | - Olga V Alekseeva
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Russia
| | - Valeriya D Shibaeva
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Russia
| | - Alexander V Agafonov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Russia
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Septian A, Shin WS. Removal of sulfadiazine and ciprofloxacin by clays and manganese oxides: Coupled sorption-oxidation kinetic model. CHEMOSPHERE 2020; 250:126251. [PMID: 32113100 DOI: 10.1016/j.chemosphere.2020.126251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/11/2020] [Accepted: 02/15/2020] [Indexed: 06/10/2023]
Abstract
Sorption onto clays (montmorillonite and kaolinite), oxidation and sorption by manganese oxides (synthesized MnO and natural MnO), and coupled sorption-oxidation experiments were conducted for the removal of antibiotics sulfadiazine (SDZ) and ciprofloxacin (CIP) at pH 5 and 8. Individual sorption and oxidation modelling were carried out using the first-order kinetic model. A coupled sorption-oxidation kinetic model was developed to predict the simultaneous sorption and oxidation process. The coupled sorption-oxidation enhanced the antibiotic sorption, with the first-order sorption rate constants in the simultaneous presence of clays and manganese oxides (ksorp) being higher than those with clays only (ksorp0). In contrast, a depression was observed; the first-order oxidation and sorption combination rate constants in the simultaneous presence of manganese oxides and clays (kMnO) were lower than those with manganese oxides only (kMnO0). In the coupled sorption-oxidation reaction, 13.5-62.5% of SDZ and CIP removal was attributed to the sorption. The SDZ and CIP species distributions at pH 5 affected the coupled sorption and oxidation systems more than those at pH 8. The best removal efficiency was achieved by the montmorillonite-synthesized MnO combination, mainly due to the higher surface area (ABET) and pore size of montmorillonite and synthesized MnO combination compared to other clays and manganese oxides combinations.
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Affiliation(s)
- Ardie Septian
- School of Architecture, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea
| | - Won Sik Shin
- School of Architecture, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea.
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Preparation and Characterization of Montmorillonite/PEDOT-PSS and Diatomite/PEDOT-PSS Hybrid Materials. Study of Electrochemical Properties in Acid Medium. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4020051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The hybridization of clay minerals with conducting polymers receives great interest for different potential applications, including environmental remediation. This work studies and compares the electrochemical properties of two different clays, montmorillonite (Mont) and diatomite (Diat), and their respective clay/PEDOT-PSS hybrid materials in H2SO4 medium. The hybrid materials were prepared by electropolymerization of EDOT in the presence of PSS. The physico-chemical and electrochemical properties of both clays were analyzed by different techniques, and the influence of the clay properties on electropolymerization and the electroactivity of the resulting clay/PEDOT-PSS hybrids was investigated. Specifically, the Fe2+/Fe3+ redox probe and the oxidation of diclofenac, as a model pharmaceutical emerging pollutant, were used to test the electron transfer capability and oxidative response, respectively, of the clay/PEDOT-PSS hybrids. The results demonstrate that, despite its low electrical conductivity, the Mont is an electroactive material itself with good electron-transfer capability. Conversely, the Diat shows no electroactivity. The hybridization with PEDOT generally enhances the electroactivity of the clays, but the clay properties affect the electropolymerization efficiency and hybrids electroactivity, so the Mont/PEDOT displays improved electrochemical properties. It is demonstrated that clay/PEDOT-PSS hybrids exhibit diclofenac oxidation capability and diclofenac concentration sensitivity.
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Parisi F, Lazzara G, Merli M, Milioto S, Princivalle F, Sciascia L. Simultaneous Removal and Recovery of Metal Ions and Dyes from Wastewater through Montmorillonite Clay Mineral. NANOMATERIALS 2019; 9:nano9121699. [PMID: 31795123 PMCID: PMC6955944 DOI: 10.3390/nano9121699] [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: 07/21/2019] [Revised: 11/25/2019] [Accepted: 11/27/2019] [Indexed: 01/02/2023]
Abstract
The main objective of this work was to evaluate the potential of Montmorillonite nanoclay (Mt), readily and inexpensively available, for the simultaneous adsorption (and removal) of two classes of pollutants: metal ions and dyes. The attention was focused on two "model" pollutants: Ce(III) and crystal violet (CV). The choice is due to the fact that they are widespread in wastewaters of various origins. These characteristics, together with their effect on human health, make them ideal for studies on water remediation. Moreover, when separated from wastewater, they can be recycled individually in industrial production with no or simple treatment. Clay/pollutant hybrids were prepared under different pH conditions and characterized through the construction of the adsorption isotherms and powder X-ray diffraction. The adsorption behavior of the two contaminants was revealed to be significantly different: the Langmuir model reproduces the adsorption isotherm of Ce(III) better, thus indicating that the clay offers a unique adsorption site to the metal ions, while the Freundlich model proved to be the most reliable for the uptake of CV which implies heterogeneity of adsorption sites. Moreover, metal ions do not adsorb at all under acidic conditions, whereas the dye is able to adsorb under all the investigated conditions. The possibility to modulate the adsorption features by simply changing the pH conditions was successfully employed to develop an efficient protocol for the removal and separation of the different components from aqueous solutions mimicking wastewaters.
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Affiliation(s)
- Filippo Parisi
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (G.L.); (S.M.)
- Correspondence:
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (G.L.); (S.M.)
| | - Marcello Merli
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi, 22, 90123 Palermo, Italy; (M.M.); (L.S.)
| | - Stefana Milioto
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (G.L.); (S.M.)
| | - Francesco Princivalle
- Dipartimento di Matematica e Geoscienze, Università degli Studi di Trieste, Via Weiss, 1, 34128 Trieste, Italy;
| | - Luciana Sciascia
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi, 22, 90123 Palermo, Italy; (M.M.); (L.S.)
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