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Decarli NO, Zapp E, de Souza BS, Santana ER, Winiarski JP, Vieira IC. Biosensor based on laccase-halloysite nanotube and imidazolium zwitterionic surfactant for dopamine determination. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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2
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Ostos FJ, Lebrón JA, Moyá ML, Bernal E, Flores A, Lépori C, Maestre Á, Sánchez F, López-Cornejo P, López-López M. Potentiometric Study of Carbon Nanotube/Surfactant Interactions by Ion-Selective Electrodes. Driving Forces in the Adsorption and Dispersion Processes. Int J Mol Sci 2021; 22:E826. [PMID: 33467613 PMCID: PMC7830566 DOI: 10.3390/ijms22020826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/16/2022] Open
Abstract
The interaction (adsorption process) of commercial ionic surfactants with non-functionalized and functionalized carbon nanotubes (CNTs) has been studied by potentiometric measurements based on the use of ion-selective electrodes. The goal of this work was to investigate the role of the CNTs' charge and structure in the CNT/surfactant interactions. Non-functionalized single- (SWCNT) and multi-walled carbon nanotubes (MWCNT), and amine functionalized SWCNT were used. The influence of the surfactant architecture on the CNT/surfactant interactions was also studied. Surfactants with different charge and hydrophobic tail length (sodium dodecyl sulfate (SDS), octyltrimethyl ammonium bromide (OTAB), dodecyltrimethyl ammonium bromide (DoTAB) and hexadecyltrimethyl ammonium bromide (CTAB)) were studied. According to the results, the adsorption process shows a cooperative character, with the hydrophobic interaction contribution playing a key role. This is made evident by the correlation between the free surfactant concentration (at a fixed [CNT]) and the critical micellar concentration, cmc, found for all the CNTs and surfactants investigated. The electrostatic interactions mainly determine the CNT dispersion, although hydrophobic interactions also contribute to this process.
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Affiliation(s)
- Francisco José Ostos
- Department of Physical Chemistry, University of Seville, c/Prof. García González 1, 41012 Seville, Spain; (F.J.O.); (J.A.L.); (M.L.M.); (E.B.); (F.S.)
| | - José Antonio Lebrón
- Department of Physical Chemistry, University of Seville, c/Prof. García González 1, 41012 Seville, Spain; (F.J.O.); (J.A.L.); (M.L.M.); (E.B.); (F.S.)
| | - María Luisa Moyá
- Department of Physical Chemistry, University of Seville, c/Prof. García González 1, 41012 Seville, Spain; (F.J.O.); (J.A.L.); (M.L.M.); (E.B.); (F.S.)
| | - Eva Bernal
- Department of Physical Chemistry, University of Seville, c/Prof. García González 1, 41012 Seville, Spain; (F.J.O.); (J.A.L.); (M.L.M.); (E.B.); (F.S.)
| | - Ana Flores
- Department of Chemical Engineering, Physical Chemistry and Materials Science, Campus ‘El Carmen’, Faculty of Experimental Sciences, University of Huelva, 21071 Huelva, Spain; (A.F.); (Á.M.)
| | - Cristian Lépori
- Institute of Physics Enrique Gaviola (IFEG), National Council of Scientific and Technical Research (CONICET), National University of Córdoba (UNC), Córdoba X5016LAE, Argentina;
| | - Ángeles Maestre
- Department of Chemical Engineering, Physical Chemistry and Materials Science, Campus ‘El Carmen’, Faculty of Experimental Sciences, University of Huelva, 21071 Huelva, Spain; (A.F.); (Á.M.)
| | - Francisco Sánchez
- Department of Physical Chemistry, University of Seville, c/Prof. García González 1, 41012 Seville, Spain; (F.J.O.); (J.A.L.); (M.L.M.); (E.B.); (F.S.)
| | - Pilar López-Cornejo
- Department of Physical Chemistry, University of Seville, c/Prof. García González 1, 41012 Seville, Spain; (F.J.O.); (J.A.L.); (M.L.M.); (E.B.); (F.S.)
| | - Manuel López-López
- Department of Chemical Engineering, Physical Chemistry and Materials Science, Campus ‘El Carmen’, Faculty of Experimental Sciences, University of Huelva, 21071 Huelva, Spain; (A.F.); (Á.M.)
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Abazari S, Shamsipur A, Bakhsheshi-Rad HR, Ismail AF, Sharif S, Razzaghi M, Ramakrishna S, Berto F. Carbon Nanotubes (CNTs)-Reinforced Magnesium-Based Matrix Composites: A Comprehensive Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4421. [PMID: 33020427 PMCID: PMC7579315 DOI: 10.3390/ma13194421] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/18/2020] [Accepted: 09/28/2020] [Indexed: 12/30/2022]
Abstract
In recent years considerable attention has been attracted to magnesium because of its light weight, high specific strength, and ease of recycling. Because of the growing demand for lightweight materials in aerospace, medical and automotive industries, magnesium-based metal matrix nanocomposites (MMNCs) reinforced with ceramic nanometer-sized particles, graphene nanoplatelets (GNPs) or carbon nanotubes (CNTs) were developed. CNTs have excellent material characteristics like low density, high tensile strength, high ratio of surface-to-volume, and high thermal conductivity that makes them attractive to use as reinforcements to fabricate high-performance, and high-strength metal-matrix composites (MMCs). Reinforcing magnesium (Mg) using small amounts of CNTs can improve the mechanical and physical properties in the fabricated lightweight and high-performance nanocomposite. Nevertheless, the incorporation of CNTs into a Mg-based matrix faces some challenges, and a uniform distribution is dependent on the parameters of the fabricating process. The characteristics of a CNTs reinforced composite are related to the uniform distribution, weight percent, and length of the CNTs, as well as the interfacial bonding and alignment between CNTs reinforcement and the Mg-based matrix. In this review article, the recent findings in the fabricating methods, characterization of the composite's properties, and application of Mg-based composites reinforced with CNTs are studied. These include the strategies of fabricating CNT-reinforced Mg-based composites, mechanical responses, and corrosion behaviors. The present review aims to investigate and conclude the most relevant studies conducted in the field of Mg/CNTs composites. Strategies to conquer complicated challenges are suggested and potential fields of Mg/CNTs composites as upcoming structural material regarding functional requirements in aerospace, medical and automotive industries are particularly presented.
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Affiliation(s)
- Somayeh Abazari
- Department of Materials and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran; (S.A.); (A.S.)
| | - Ali Shamsipur
- Department of Materials and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran; (S.A.); (A.S.)
| | - Hamid Reza Bakhsheshi-Rad
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
- Advanced Membrane Technology Research Center (AMTEC), Universiti Teknologi Malaysia, Johor Bahru, Johor 81310, Malaysia;
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Center (AMTEC), Universiti Teknologi Malaysia, Johor Bahru, Johor 81310, Malaysia;
| | - Safian Sharif
- Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru, Johor 81310, Malaysia;
| | - Mahmood Razzaghi
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
| | - Seeram Ramakrishna
- Nanoscience and Nanotechnology Initiative, National University of Singapore, 9 Engineering Drive 1, Singapore 1157, Singapore
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
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Abreu B, Rocha J, Fernandes RMF, Regev O, Furó I, Marques EF. Gemini surfactants as efficient dispersants of multiwalled carbon nanotubes: Interplay of molecular parameters on nanotube dispersibility and debundling. J Colloid Interface Sci 2019; 547:69-77. [PMID: 30939346 DOI: 10.1016/j.jcis.2019.03.082] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/18/2019] [Accepted: 03/24/2019] [Indexed: 12/26/2022]
Abstract
Surfactants have been widely employed to debundle, disperse and stabilize carbon nanotubes in aqueous solvents. Yet, a thorough understanding of the dispersing mechanisms at molecular level is still warranted. Herein, we investigated the influence of the molecular structure of gemini surfactants on the dispersibility of multiwalled carbon nanotubes (MWNTs). We used dicationic n-s-n gemini surfactants, varying n and s, the number of alkyl tail and alkyl spacer carbons, respectively; for comparisons, single-tailed surfactant homologues were also studied. Detailed curves of dispersed MWNT concentration vs. surfactant concentration were obtained through a stringently controlled experimental procedure, allowing for molecular insight. The gemini are found to be much more efficient dispersants than their single-tailed homologues, i.e. lower surfactant concentration is needed to attain the maximum dispersed MWNT concentration. In general, the spacer length has a comparatively higher influence on the dispersing efficiency than the tail length. Further, scanning electron microscopy imaging shows a sizeable degree of MWNT debundling by the gemini surfactants in the obtained dispersions. Our observations also point to an adsorption process that does not entail the formation of micelle-like aggregates on the nanotube surface, but rather coverage by individual molecules, among which the ones that seem to be able to adapt best to the nanotube surface provide the highest efficiency. These studies are relevant for the rational design and choice of optimal dispersants for carbon nanomaterials and other similarly water-insoluble materials.
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Affiliation(s)
- Bárbara Abreu
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Jessica Rocha
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Ricardo M F Fernandes
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Oren Regev
- Department of Chemical Engineering, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel; Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - István Furó
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Eduardo F Marques
- CIQUP, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Hou J, Du W, Meng F, Zhao C, Du X. Effective dispersion of multi-walled carbon nanotubes in aqueous solution using an ionic-gemini dispersant. J Colloid Interface Sci 2018; 512:750-757. [DOI: 10.1016/j.jcis.2017.10.109] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/25/2017] [Accepted: 10/29/2017] [Indexed: 11/16/2022]
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Ramos E, Pardo WA, Mir M, Samitier J. Dependence of carbon nanotubes dispersion kinetics on surfactants. NANOTECHNOLOGY 2017; 28:135702. [PMID: 28151432 DOI: 10.1088/1361-6528/aa5dd4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Carbon nanotubes (CNTs) have been the subject of many studies due to their unique structure and desirable properties. However, the ability to solubilize and separate single CNTs from the bundles they form is still a challenge that needs to be overcome in order to extend their applications in the field of Nanotechnology. Covalent interactions are designed to modify CNTs surface and so prevent agglomeration. Though, this method alters the structures and intrinsic properties of CNTs. In the present work, noncovalent approaches to functionalize and solubilize CNTs are studied in detail. A dispersion kinetic study was performed to characterize the ability of different type of surfactants (non-ionic, anionic, cationic and biopolymer) to unzip CNT bundles. The dispersion kinetic study performed depicts the distinct CNTs bundles unzipping behavior of the different type of surfactants and the results elucidate specific wavelengths in relation with the degree of CNT clustering, which provides new tools for a deeper understanding and characterization of CNTs. Small angle x-ray scattering and transmission electron microscopy results are in agreement with UV-vis-NIR observations, revealing perfectly monodispersed CNTs for the biopolymer and cationic surfactant.
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Affiliation(s)
- Erika Ramos
- Nanobioengineering group, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, E-08028 Barcelona, Spain. Department of Electronics, University of Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain
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Bhadani A, Misono T, Singh S, Sakai K, Sakai H, Abe M. Structural diversity, physicochemical properties and application of imidazolium surfactants: Recent advances. Adv Colloid Interface Sci 2016; 231:36-58. [PMID: 27063924 DOI: 10.1016/j.cis.2016.03.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 01/19/2016] [Accepted: 03/21/2016] [Indexed: 10/22/2022]
Abstract
The current review covers recent advances on development and investigation of cationic surfactants containing imidazolium headgroup, which are being extensively investigated for their self-aggregation properties and are currently being utilized in various conventional and non-conventional application areas. These surfactants are being used as: soft template for synthesis of mesoporous/microporous materials, drug and gene delivery agent, stabilizing agent for nanoparticles, dispersants for single/multi walled carbon nanotubes, antimicrobial and antifungal agent, viscosity modifiers, preparing nanocomposite materials, stabilizing microemulsions, corrosion inhibitors and catalyst for organic reactions. Recently several structural derivatives of these surfactants have been developed having many interesting physicochemical properties and they have demonstrated enormous potential in the area of nanotechnology, material science and biomedical science.
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Gatti T, Vicentini N, Mba M, Menna E. Organic Functionalized Carbon Nanostructures for Functional Polymer-Based Nanocomposites. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501411] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fernandes RMF, Abreu B, Claro B, Buzaglo M, Regev O, Furó I, Marques EF. Dispersing Carbon Nanotubes with Ionic Surfactants under Controlled Conditions: Comparisons and Insight. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10955-65. [PMID: 26390187 DOI: 10.1021/acs.langmuir.5b02050] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A fundamental understanding of the mechanisms involved in the surfactant-assisted exfoliation and dispersion of carbon nanotubes (CNTs) in water calls for well-controlled experimental methodologies and reliable comparative metrics. We have assessed the ability of several ionic surfactants to disperse single and multiwalled carbon nanotubes, resorting to a stringently controlled sonication-centrifugation method for the preparation of the dispersions. The CNT concentration was accurately measured for a wide range of surfactant concentration, using combined thermogravimetric analysis and UV-vis spectroscopy. The obtained dispersibility curves yield several quantitative parameters, which in turn allow for the effects of nanotube morphology and surfactant properties (aromatic rings, chain length, headgroup charge, and cmc) to be assessed and rationalized, both in terms of dispersed nanotube mass and surface area. The data also indicate that the CNT-surfactant association follows patterns that are markedly different from other equilibrium processes governed by hydrophobicity (such as micellization); in particular, the surfactant concentration needed for maximum dispersibility, c(s,max), and the number of surfactant molecules per unit CNT area at c(s,max) are shown to depend linearly on chain length. The results further suggest that the presence of micelles in the exfoliation process is not a key factor either for starting CNT dispersibility or attaining its saturation value.
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Affiliation(s)
- Ricardo M F Fernandes
- Centro de Investigação em Química, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto , Rua do Campo Alegre, s/n, P-4169-007 Porto, Portugal
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology , SE-10044 Stockholm, Sweden
| | - Bárbara Abreu
- Centro de Investigação em Química, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto , Rua do Campo Alegre, s/n, P-4169-007 Porto, Portugal
| | - Bárbara Claro
- Centro de Investigação em Química, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto , Rua do Campo Alegre, s/n, P-4169-007 Porto, Portugal
| | | | | | - István Furó
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology , SE-10044 Stockholm, Sweden
| | - Eduardo F Marques
- Centro de Investigação em Química, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto , Rua do Campo Alegre, s/n, P-4169-007 Porto, Portugal
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Suttipong M, Striolo A. Equimolar mixtures of aqueous linear and branched SDBS surfactant simulated on single walled carbon nanotubes. RSC Adv 2015. [DOI: 10.1039/c5ra17862b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The self-assembly of mixed SDBS surfactant aggregates is strongly dependent on surface coverage, but not on tube diameter.
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Affiliation(s)
- Manaswee Suttipong
- Department of Chemical Engineering
- University College London
- London WC1E 7JE
- UK
| | - Alberto Striolo
- Department of Chemical Engineering
- University College London
- London WC1E 7JE
- UK
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Di Crescenzo A, Ettorre V, Fontana A. Non-covalent and reversible functionalization of carbon nanotubes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:1675-90. [PMID: 25383279 PMCID: PMC4222398 DOI: 10.3762/bjnano.5.178] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Accepted: 08/29/2014] [Indexed: 05/18/2023]
Abstract
Carbon nanotubes (CNTs) have been proposed and actively explored as multipurpose innovative nanoscaffolds for applications in fields such as material science, drug delivery and diagnostic applications. Their versatile physicochemical features are nonetheless limited by their scarce solubilization in both aqueous and organic solvents. In order to overcome this drawback CNTs can be easily non-covalently functionalized with different dispersants. In the present review we focus on the peculiar hydrophobic character of pristine CNTs that prevent them to easily disperse in organic solvents. We report some interesting examples of CNTs dispersants with the aim to highlight the essential features a molecule should possess in order to act as a good carbon nanotube dispersant both in water and in organic solvents. The review pinpoints also a few examples of dispersant design. The last section is devoted to the exploitation of the major quality of non-covalent functionalization that is its reversibility and the possibility to obtain stimuli-responsive precipitation or dispersion of CNTs.
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Affiliation(s)
- Antonello Di Crescenzo
- Dipartimento di Farmacia, Università “G. d’Annunzio”, Via dei Vestini, 66100 Chieti, Italy
| | - Valeria Ettorre
- Dipartimento di Farmacia, Università “G. d’Annunzio”, Via dei Vestini, 66100 Chieti, Italy
| | - Antonella Fontana
- Dipartimento di Farmacia, Università “G. d’Annunzio”, Via dei Vestini, 66100 Chieti, Italy
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Martín VI, Rodríguez A, Laschewsky A, Moyá ML. Self-aggregation of cationic dimeric surfactants in water–ionic liquid binary mixtures. J Colloid Interface Sci 2014; 430:326-36. [DOI: 10.1016/j.jcis.2014.05.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 05/31/2014] [Accepted: 05/31/2014] [Indexed: 10/25/2022]
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