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Li L, Soyhan I, Warszawik E, van Rijn P. Layered Double Hydroxides: Recent Progress and Promising Perspectives Toward Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306035. [PMID: 38501901 PMCID: PMC11132086 DOI: 10.1002/advs.202306035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Indexed: 03/20/2024]
Abstract
Layered double hydroxides (LDHs) have been widely studied for biomedical applications due to their excellent properties, such as good biocompatibility, degradability, interlayer ion exchangeability, high loading capacity, pH-responsive release, and large specific surface area. Furthermore, the flexibility in the structural composition and ease of surface modification of LDHs makes it possible to develop specifically functionalized LDHs to meet the needs of different applications. In this review, the recent advances of LDHs for biomedical applications, which include LDH-based drug delivery systems, LDHs for cancer diagnosis and therapy, tissue engineering, coatings, functional membranes, and biosensors, are comprehensively discussed. From these various biomedical research fields, it can be seen that there is great potential and possibility for the use of LDHs in biomedical applications. However, at the same time, it must be recognized that the actual clinical translation of LDHs is still very limited. Therefore, the current limitations of related research on LDHs are discussed by combining limited examples of actual clinical translation with requirements for clinical translation of biomaterials. Finally, an outlook on future research related to LDHs is provided.
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Affiliation(s)
- Lei Li
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
| | - Irem Soyhan
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
| | - Eliza Warszawik
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
| | - Patrick van Rijn
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
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2
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Gevers BR, Roduner E, Leuteritz A, Labuschagné FJWJ. Uncovering thermally activated purple-to-blue luminescence in Co-modified MgAl-layered double hydroxide. NANOSCALE 2024. [PMID: 38436416 DOI: 10.1039/d3nr05205b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Thermally activated blue-to-purple luminescence of Co-modified nano-sandrose MgAl-layered double hydroxides (LDHs) is concentration dependent, occurring only for MgCoAl-LDH with a molar metal cation concentration of 15% Co. Temperature sweep luminescence spectroscopy between 83 K and 298 K shows that the luminescence is strongest at room temperature, increasing with an activation energy of 1 kJ mol-1 between these temperatures. The luminescence occurs in a broad, but fine-structured band below the conduction band (CB) edge at 3.0 eV after excitation at 5.0 eV.
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Affiliation(s)
- Bianca R Gevers
- Department of Chemical Engineering, University of Pretoria, 0002 Pretoria, South Africa.
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Polymer Materials; Processing Technology, D-01069 Dresden, Germany
| | - Emil Roduner
- Department of Chemistry, University of Pretoria, 0002 Pretoria, South Africa
- Institute of Physical Chemistry, Universität Stuttgart, Stuttgart D-70569, Germany
| | - Andreas Leuteritz
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Polymer Materials; Processing Technology, D-01069 Dresden, Germany
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3
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Moradi S, Ardeshiri HH, Gholami A, Ghafuri H. Synthesis and characterization of new biocatalyst based on LDH functionalized with l-asparagine amino acid for the synthesis of tri-substituted derivatives of 2, 4, 5-(H1)-imidazoles. Heliyon 2023; 9:e22185. [PMID: 38053897 PMCID: PMC10694169 DOI: 10.1016/j.heliyon.2023.e22185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 12/07/2023] Open
Abstract
In this study, a new and recyclable biocatalyst (MgAl CO3-LDH@Asn) was synthesized by immobilizing l-asparagine amino acid (Asn) on the surface of 3-(chloropropyl)-trimethoxysilane modified MgAl CO3-layered double hydroxide (LDH). The physicochemical properties of the samples were identified by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and thermogravimetric analysis (TGA) techniques. The MgAl CO3-LDH@Asn was employed in the multi-component assembly process for the synthesis of tri-substituted derivatives of 2,4,5-(H1)-imidazoles from benzyl, various benzaldehyde derivatives, and ammonium acetate. For optimizing the reaction, the main factors, including the amount of MgAl CO3-LDH@Asn, type of solvent, reaction time, and temperature were evaluated. The optimum conditions of the model reaction were achieved using 20 mg of MgAl CO3-LDH@Asn biocatalyst in ethanol solvent after 20 min at reflux temperature. According to the findings above, the results indicated that high-yield products are achieved within a short time frame. Moreover, the high catalytic activity of the MgAl CO3-LDH@Asn was maintained for four cycles without significantly diminishing its performance.
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Affiliation(s)
- Shahram Moradi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hadi Hassani Ardeshiri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Alireza Gholami
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
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Sanchis-Gual R, Hunt D, Jaramillo-Hernández C, Seijas-Da Silva A, Mizrahi M, Marini C, Oestreicher V, Abellán G. Crystallographic and Geometrical Dependence of Water Oxidation Activity in Co-Based Layered Hydroxides. ACS Catal 2023; 13:10351-10363. [PMID: 37560192 PMCID: PMC10407849 DOI: 10.1021/acscatal.3c01432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/28/2023] [Indexed: 08/11/2023]
Abstract
Cobalt-based layered hydroxides (LHs) stand out as one of the best families of electroactive materials for the alkaline oxygen evolution reaction (OER). However, fundamental aspects such as the influence of the crystalline structure and its connection with the geometry of the catalytic sites remain poorly understood. Thus, to address this topic, we have conducted a thorough experimental and in silico study on the most important divalent Co-based LHs (i.e., α-LH, β-LH, and LDH), which allows us to understand the role of the layered structure and coordination environment of divalent Co atoms on the OER performance. The α-LH, containing both octahedral and tetrahedral sites, behaves as the best OER catalyst in comparison to the other phases, pointing out the role of the chemical nature of the crystalline structure. Indeed, density functional theory (DFT) calculations confirm the experimental results, which can be explained in terms of the more favorable reconstruction into an active Co(III)-based oxyhydroxide-like phase (dehydrogenation process) as well as the significantly lower calculated overpotential across the OER mechanism for the α-LH structure (exhibiting lower Egap). Furthermore, ex situ X-ray diffraction and absorption spectroscopy reveal the permanent transformation of the α-LH phase into a highly reactive oxyhydroxide-like stable structure under ambient conditions. Hence, our findings highlight the key role of tetrahedral sites on the electronic properties of the LH structure as well as their inherent reactivity toward OER catalysis, paving the way for the rational design of more efficient and low-maintenance electrocatalysts.
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Affiliation(s)
- Roger Sanchis-Gual
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Diego Hunt
- Departamento
de Física de la Materia Condensada, GIyA. Instituto de Nanociencia y Nanotecnología, CNEA-CAC-CONICET, Av. Gral. Paz, 1650 San Martín, Buenos
Aires, Argentina
| | - Camilo Jaramillo-Hernández
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Alvaro Seijas-Da Silva
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Martín Mizrahi
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), Departamento de Química, Facultad de Ciencias Exactas. Universidad Nacional de La Plata, CCT La Plata- CONICET, Diagonal 113 y 64, 1900 La Plata, Argentina
- Facultad
de Ingeniería, Universidad Nacional
de La Plata, Calle 1
esq. 47, 1900 La
Plata, Argentina
| | - Carlo Marini
- CELLS−ALBA
Synchrotron, Cerdanyola del Vallès, 08290 Barcelona, Spain
| | - Víctor Oestreicher
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
| | - Gonzalo Abellán
- Instituto
de Ciencia Molecular (ICMol), Universidad
de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain
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Ibanescu A, Olariu DI, Lutic D, Hulea V, Dragoi B. Engineering the Morphostructural Properties and Drug Loading Degree of Organic-Inorganic Fluorouracil-MgAl LDH Nanohybrids by Rational Control of Hydrothermal Treatment. ACS OMEGA 2023; 8:26102-26121. [PMID: 37521604 PMCID: PMC10372945 DOI: 10.1021/acsomega.3c02288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/13/2023] [Indexed: 08/01/2023]
Abstract
Layered double hydroxides (LDHs) or hydrotalcite-like compounds have attracted great attention for the delivery of anticancer drugs due to their 2D structure, exhibiting a high surface-to-volume ratio and a high chemical versatility. The drug is protected between the layers from which it is slowly released, thus increasing the therapeutic effect and minimizing the side effects associated to nonspecific targeting. This work aimed to design LDHs with Mg and Al (molar ratio of 2/1) in brucite-like layers, which retained fluorouracil (5-FU; 5-FU/Al = 1, molar ratio) in the interlayer gallery as the layers grow during the co-precipitation step of the synthesis. To rationally control the physicochemical properties, particularly the size of the crystallites, the aging step following the co-precipitation was performed under carefully controlled conditions by changing the time and temperature (i.e., 25 °C for 16 h, 100 °C for 16 h, and 120 °C for 24 h). The results revealed the achievement of the control of the size of the crystals, which are gathered in three different agglomeration systems, from tight to loose, as well as the loading degree of the drug in the final organic-inorganic hybrid nanomaterials. The role played by the factors and parameters affecting the drug-controlled release was highlighted by assessing the release behavior of 5-FU by changing the pH, solid mass/volume ratio, and ionic strength. The results showed a pH-dependent behavior but not necessarily in a direct proportionality. After a certain limit, the mass of the solid diminishes the rate of release, whereas the ionic strength is essential for the payload discharge.
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Affiliation(s)
- Alina Ibanescu
- TRANSCEND
Research Center, Regional Institute of Oncology, 2-4 General Henri Mathias Berthelot, 700483 Iasi, Romania
- Faculty
of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73 Prof. D. Mangeron Bvd., 700050 Iasi, Romania
| | - Dragos-Ioan Olariu
- TRANSCEND
Research Center, Regional Institute of Oncology, 2-4 General Henri Mathias Berthelot, 700483 Iasi, Romania
- Faculty
of Chemistry, Al. I. Cuza University, 11-Carol I Bvd., 700506 Iasi, Romania
| | - Doina Lutic
- TRANSCEND
Research Center, Regional Institute of Oncology, 2-4 General Henri Mathias Berthelot, 700483 Iasi, Romania
- Faculty
of Chemistry, Al. I. Cuza University, 11-Carol I Bvd., 700506 Iasi, Romania
| | - Vasile Hulea
- Institut
Charles Gerhardt Montpellier, UMR 5253, CNRS-UM-ENSCM,Montpellier 34296, France
| | - Brindusa Dragoi
- TRANSCEND
Research Center, Regional Institute of Oncology, 2-4 General Henri Mathias Berthelot, 700483 Iasi, Romania
- Faculty
of Chemistry, Al. I. Cuza University, 11-Carol I Bvd., 700506 Iasi, Romania
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6
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Porwal VK, Carof A, Ingrosso F. Hydration effects on the vibrational properties of carboxylates: From continuum models to QM/MM simulations. J Comput Chem 2023. [PMID: 37300426 DOI: 10.1002/jcc.27171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 05/15/2023] [Accepted: 05/21/2023] [Indexed: 06/12/2023]
Abstract
The presence of carboxyl groups in a molecule delivers an affinity to metal cations and a sensitivity to the chemical environment, especially for an environment that can give rise to intermolecular hydrogen bonds. Carboxylate groups can also induce intramolecular interactions, such as the formation of hydrogen bonds with donor groups, leading to an impact on the conformational space of biomolecules. In the latter case, the protonation state of the amino groups plays an important role. In order to provide an accurate description of the modifications induced in a carboxylated molecule by the formation of hydrogen bonds, one needs a compromise between a quantum chemical description of the system and the necessity to take into account explicit solvent molecules. In this work, we propose a bottom-up approach to study the conformational space and the carboxylate stretching band of (bio)organic anions. Starting from the anions in a continuum solvent, we then move to calculations using a microsolvation approach including one explicit water molecule per polar group, immersed in a continuum. Finally, we run QM/MM molecular dynamics simulations to analyze the solvation properties and to explore the anions conformational space. The results thus obtained are in good agreement with the description given by the microsolvation approach and they bring a more detailed description of the solvation shell and of the intermolecular hydrogen bonds.
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Affiliation(s)
- Vishal Kumar Porwal
- Université de Lorraine and CNRS, Laboratoire de Physique et Chimie Théoriques UMR 7019, Nancy, France
| | - Antoine Carof
- Université de Lorraine and CNRS, Laboratoire de Physique et Chimie Théoriques UMR 7019, Nancy, France
| | - Francesca Ingrosso
- Université de Lorraine and CNRS, Laboratoire de Physique et Chimie Théoriques UMR 7019, Nancy, France
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7
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Bañuelos JL, Borguet E, Brown GE, Cygan RT, DeYoreo JJ, Dove PM, Gaigeot MP, Geiger FM, Gibbs JM, Grassian VH, Ilgen AG, Jun YS, Kabengi N, Katz L, Kubicki JD, Lützenkirchen J, Putnis CV, Remsing RC, Rosso KM, Rother G, Sulpizi M, Villalobos M, Zhang H. Oxide- and Silicate-Water Interfaces and Their Roles in Technology and the Environment. Chem Rev 2023; 123:6413-6544. [PMID: 37186959 DOI: 10.1021/acs.chemrev.2c00130] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Interfacial reactions drive all elemental cycling on Earth and play pivotal roles in human activities such as agriculture, water purification, energy production and storage, environmental contaminant remediation, and nuclear waste repository management. The onset of the 21st century marked the beginning of a more detailed understanding of mineral aqueous interfaces enabled by advances in techniques that use tunable high-flux focused ultrafast laser and X-ray sources to provide near-atomic measurement resolution, as well as by nanofabrication approaches that enable transmission electron microscopy in a liquid cell. This leap into atomic- and nanometer-scale measurements has uncovered scale-dependent phenomena whose reaction thermodynamics, kinetics, and pathways deviate from previous observations made on larger systems. A second key advance is new experimental evidence for what scientists hypothesized but could not test previously, namely, interfacial chemical reactions are frequently driven by "anomalies" or "non-idealities" such as defects, nanoconfinement, and other nontypical chemical structures. Third, progress in computational chemistry has yielded new insights that allow a move beyond simple schematics, leading to a molecular model of these complex interfaces. In combination with surface-sensitive measurements, we have gained knowledge of the interfacial structure and dynamics, including the underlying solid surface and the immediately adjacent water and aqueous ions, enabling a better definition of what constitutes the oxide- and silicate-water interfaces. This critical review discusses how science progresses from understanding ideal solid-water interfaces to more realistic systems, focusing on accomplishments in the last 20 years and identifying challenges and future opportunities for the community to address. We anticipate that the next 20 years will focus on understanding and predicting dynamic transient and reactive structures over greater spatial and temporal ranges as well as systems of greater structural and chemical complexity. Closer collaborations of theoretical and experimental experts across disciplines will continue to be critical to achieving this great aspiration.
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Affiliation(s)
- José Leobardo Bañuelos
- Department of Physics, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Eric Borguet
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Gordon E Brown
- Department of Earth and Planetary Sciences, The Stanford Doerr School of Sustainability, Stanford University, Stanford, California 94305, United States
| | - Randall T Cygan
- Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas 77843, United States
| | - James J DeYoreo
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Patricia M Dove
- Department of Geosciences, Department of Chemistry, Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Marie-Pierre Gaigeot
- Université Paris-Saclay, Univ Evry, CNRS, LAMBE UMR8587, 91025 Evry-Courcouronnes, France
| | - Franz M Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Julianne M Gibbs
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2Canada
| | - Vicki H Grassian
- Department of Chemistry and Biochemistry, University of California, San Diego, California 92093, United States
| | - Anastasia G Ilgen
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Young-Shin Jun
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Nadine Kabengi
- Department of Geosciences, Georgia State University, Atlanta, Georgia 30303, United States
| | - Lynn Katz
- Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - James D Kubicki
- Department of Earth, Environmental & Resource Sciences, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Johannes Lützenkirchen
- Karlsruher Institut für Technologie (KIT), Institut für Nukleare Entsorgung─INE, Eggenstein-Leopoldshafen 76344, Germany
| | - Christine V Putnis
- Institute for Mineralogy, University of Münster, Münster D-48149, Germany
| | - Richard C Remsing
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Kevin M Rosso
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Gernot Rother
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Marialore Sulpizi
- Department of Physics, Ruhr Universität Bochum, NB6, 65, 44780, Bochum, Germany
| | - Mario Villalobos
- Departamento de Ciencias Ambientales y del Suelo, LANGEM, Instituto De Geología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Huichun Zhang
- Department of Civil and Environmental Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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8
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Radu ER, Pandele AM, Tuncel C, Miculescu F, Voicu SI. Preparation and Characterization of Chitosan/LDH Composite Membranes for Drug Delivery Application. MEMBRANES 2023; 13:179. [PMID: 36837682 PMCID: PMC9965179 DOI: 10.3390/membranes13020179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
In this study, composite membranes based on chitosan (CS), layered double hydroxide (LDH), and diclofenac were prepared via dispersing of LDH and diclofenac (DCF) in the chitosan matrix for gradual delivery of diclofenac sodium. The effect of using LDH in composites was compared to chitosan loaded with diclofenac membrane. LDH was added in order to develop a system with a long release of diclofenac sodium, which is used in inflammatory conditions as an anti-inflammatory drug. The prepared composite membranes were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscope Analysis (SEM), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric Analysis (TGA) and UV-Vis Spectroscopy. The results of the FTIR and XPS analyses confirmed the obtaining of the composite membrane and the efficient incorporation of diclofenac. It was observed that the addition of LDH can increase the thermal stability of the composite membrane and favors the gradual release of diclofenac, highlighted by UV-Vis spectra that showed a gradual release in the first 48 h. In conclusion, the composite membrane based on CS-LDH can be used in potential drug delivery application.
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Affiliation(s)
- Elena-Ruxandra Radu
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Andreea Madalina Pandele
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Cristina Tuncel
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Florin Miculescu
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Stefan Ioan Voicu
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
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9
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Mohammed AA, Ali DK. Bentonite-layered double hydroxide composite as potential adsorbent for removal of Abamectin pesticide from wastewater. RESULTS IN SURFACES AND INTERFACES 2023. [DOI: 10.1016/j.rsurfi.2023.100099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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10
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Jatav S, Herber M, Xiang H, Hill EH. Layered Double Hydroxide-Bismuth Molybdate Hybrids toward Water Remediation via Selective Adsorption of Anionic Species. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51921-51930. [PMID: 36355751 DOI: 10.1021/acsami.2c14979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The steady release of anthropogenic toxins into the biosphere is compromising water security globally. Herein, CoAl layered double hydroxide, a clay-like layered material with a cationic surface charge, was organically modified and used to template the growth of Bi2MoO6. The resulting nanohybrid selectively removed the anionic dye methyl orange from aqueous solution and showed an enhancement of greater than 300% in the maximum adsorptivity (1.95 mmol/g) compared to modified CoAl layered double hydroxide (0.42 mmol/g). Interestingly, the observed improvement in adsorption occurs without any significant increase in the surface area of the hybrids. Furthermore, these hybrids exhibit increased broadband visible light absorption, and their photoactivity is slightly improved compared to CoAl layered double hydroxide. This study demonstrates that composites of clay-like materials with Aurivillius oxides are promising sorbent materials for water decontamination and photocatalytic antifouling membranes and shows that the synthetic strategy that was first established with an anionic layered silicate nanoclay can be generalized to other ionic layered materials.
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Affiliation(s)
- Sanjay Jatav
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Marcel Herber
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Hongxiao Xiang
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Eric H Hill
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging (CUI), Luruper Chausee 149, 22761 Hamburg, Germany
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11
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Szabó V, Mészáros R, Kónya Z, Kukovecz Á, Pálinkó I, Sipos P, Szabados M. Preparation and characterization of MnIn-layered double hydroxides (LDHs), extension of the synthesis to fabricate MnM(III)-LDHs (M = Al, Sc, Cr, Fe, Ga), and the comparison of their photocatalytic and catalytic activities in the oxidation of hydroquinone. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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12
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Calcined Mytella falcata shells as a source for CaAl/LDH production: Synthesis and characterization. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Layered Double Hydroxides (LDHs) as New Consolidants for Cultural Heritage Masonry. CRYSTALS 2022. [DOI: 10.3390/cryst12040490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
(1) Background: In time, stone monuments suffer a process of aging and loss of aesthetic and mechanical properties. In order to restore and stop the loss of their properties, various treatments are used, and in this context, a new class of discovered materials with interesting properties are layered double hydroxides, or LDHs. (2) Methods: The LDHs, prepared by a coprecipitation method, were characterized by the structure by X-ray diffraction, composition by FT-IR spectroscopy and X-ray fluorescence spectroscopy, size by diffuse light scattering, and porosity by N2 adsorption/desorption. Additionally, some microscopy techniques such as optical microscopy and SEM/EDAX were used for surface aspects and morphology, and finally, all these were checked with ImageJ software for representative roughness parameters of the treated surfaces by brushing or incorporation. (3) Results: The prepared materials show different degrees of crystallinity and textural properties, and the dispersion of the material presents good stability in time in water/ethanol mixtures. Treatment with the LDH dispersion applied by brushing led to improvements in the mechanical properties (about a 5% increase in compressive strength), to an increased surface stability (about 30%), and to an improvement in the resistance to freeze–thaw cycles. The textural properties of the specimens’ materials were not altered by these treatments. (4) Conclusions: The order of the consolidation efficacity was CaMgAl-LDH > MgAl-LDH > CaAl-LDH, better for application by brushing than by incorporation.
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Evaluation of the reactivity, selectivity and lifetime of hydrotalcite-based catalysts using isopropanol as probe molecule. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-021-04640-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractHydrotalcite catalysts derived from NiAl and NiAlMg mixed oxides were successfully prepared by coprecipitation at a constant pH of 11. Physicochemical methods were investigated to determine their structural and textural properties. Using isopropanol as a probe molecule, the acid–base properties of the catalysts were investigated, and the evaluation of reactivity, selectivity and lifetime was established.
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Doungmo G, Morais AF, Mustafa D, Kamgaing T, Njanja E, Etter M, Tonlé IK, Terraschke H. How do layered double hydroxides evolve? First in situ insights into their synthesis processes. RSC Adv 2022; 12:33469-33478. [DOI: 10.1039/d2ra05269e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/01/2022] [Indexed: 11/23/2022] Open
Abstract
In situ characterisation techniques granted unprecedented experimental access to the formation dynamics of carbonate-intercalated Mg2+/Al3+ LDHs.
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Affiliation(s)
- G. Doungmo
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max Eyth-Str. 2, 24118 Kiel, Germany
- Research Unit of Noxious Chemistry and Environmental Engineering, Department of Chemistry, Faculty of Science University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - A. F. Morais
- Instituto de Física da Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - D. Mustafa
- Instituto de Física da Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - T. Kamgaing
- Research Unit of Noxious Chemistry and Environmental Engineering, Department of Chemistry, Faculty of Science University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - E. Njanja
- Research Unit of Noxious Chemistry and Environmental Engineering, Department of Chemistry, Faculty of Science University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - M. Etter
- Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
| | - I. K. Tonlé
- Research Unit of Noxious Chemistry and Environmental Engineering, Department of Chemistry, Faculty of Science University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - H. Terraschke
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max Eyth-Str. 2, 24118 Kiel, Germany
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Enhanced CO2 capture from methane-stream using MII -Al LDH prepared by microwave-assisted urea hydrolysis. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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van Tonder L, Labuschagné FJWJ. Systematic Literature Review of the Effect of Layered Double Hydroxides on the Mechanical Properties of Rubber. Polymers (Basel) 2021; 13:polym13213716. [PMID: 34771273 PMCID: PMC8587788 DOI: 10.3390/polym13213716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 11/29/2022] Open
Abstract
Layered double hydroxides (LDHs) have attracted interest as reinforcing fillers in elastomers due to their ease of synthesis and customisability. A systematic review was performed on the effect of LDHs on the mechanical properties of elastomers using the Scopus database. Of the 61 articles relevant to the search criteria, the majority were published on polyurethane (PU) and nitrile butadiene rubber (NBR). Mg-Al LDH was used in most of the studies and Zn-Al LDH was used second most common. LDH can act as a reinforcing filler, typically increasing tensile strength even at low concentrations, so it could be used as an alternative to traditional reinforcing fillers for elastomers. LDH can also be made a functional filler by selecting the right metals and interlayer anions. It was found that Mg-Al LDH and Zn-Al LDH can both participate in crosslinking reactions and can replace MgO and ZnO, respectively. Less Zn ions are required for crosslinking when LDH is used than when ZnO is used, making LDH more environmentally friendly. Organic modification is usually required to improve compatibility with the elastomer matrix, especially in non-polar elastomers. It enables exfoliation of the LDH and intercalation of polymer chains into the LDH interlayer to occur. Organic modifiers can also be used to functionalise the LDH. Stearic acid used in crosslinking systems can be replaced by stearate anions from stearate-modified LDH.
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Conventional or mechanochemically-aided intercalation of diclofenac and naproxen anions into the interlamellar space of CaFe-layered double hydroxides and their application as dermal drug delivery systems. APPLIED CLAY SCIENCE 2021. [DOI: 10.1016/j.clay.2021.106233] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Szabados M, Ádám AA, Kása Z, Baán K, Mucsi R, Sápi A, Kónya Z, Kukovecz Á, Sipos P. M(II)Al 4 Type Layered Double Hydroxides-Preparation Using Mechanochemical Route, Structural Characterization and Catalytic Application. MATERIALS 2021; 14:ma14174880. [PMID: 34500969 PMCID: PMC8432663 DOI: 10.3390/ma14174880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 12/02/2022]
Abstract
The synthesis of the copper-poor and aluminum-rich layered double hydroxides (LDHs) of the CuAl4 type was optimized in detail in this work, by applying an intense mechanochemical treatment to activate the gibbsite starting reagent. The phase-pure forms of these LDHs were prepared for the first time; using copper nitrate and perchlorate salts during the syntheses turned out to be the key to avoiding the formation of copper hydroxide sideproducts. Based on the use of the optimized syntheses parameters, the preparation of layered triple and multiple hydroxides was also attempted using Ni(II), Co(II), Zn(II) and even Mg(II) ions. These studies let us identify the relative positions of the incorporating cations in the well-known selectivity series as Ni2+ >> Cu2+ >> Zn2+ > Co2+ >> Mg2+. The solids formed were characterized by using powder X-ray diffractometry, UV–Vis diffuse reflectance spectroscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy. The catalytic potential of the samples was investigated in carbon monoxide oxidation reactions at atmospheric pressure, supported by an in situ diffuse reflectance infrared spectroscopy probe. All solids proved to be active and the combination of the nickel and cobalt incorporation (which resulted in a NiCoAl8 layered triple hydroxide) brought outstanding benefits regarding low-temperature oxidation and increased carbon monoxide conversion values.
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Affiliation(s)
- Márton Szabados
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary;
- Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, H-6720 Szeged, Hungary; (A.A.Á.); (Z.K.)
| | - Adél Anna Ádám
- Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, H-6720 Szeged, Hungary; (A.A.Á.); (Z.K.)
| | - Zsolt Kása
- Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, H-6720 Szeged, Hungary; (A.A.Á.); (Z.K.)
| | - Kornélia Baán
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, H-6720 Szeged, Hungary; (K.B.); (R.M.); (A.S.); (Z.K.); (Á.K.)
| | - Róbert Mucsi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, H-6720 Szeged, Hungary; (K.B.); (R.M.); (A.S.); (Z.K.); (Á.K.)
| | - András Sápi
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, H-6720 Szeged, Hungary; (K.B.); (R.M.); (A.S.); (Z.K.); (Á.K.)
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, H-6720 Szeged, Hungary; (K.B.); (R.M.); (A.S.); (Z.K.); (Á.K.)
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich B tér 1, H-6720 Szeged, Hungary
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, H-6720 Szeged, Hungary; (K.B.); (R.M.); (A.S.); (Z.K.); (Á.K.)
| | - Pál Sipos
- Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, H-6720 Szeged, Hungary; (A.A.Á.); (Z.K.)
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
- Correspondence:
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Maia MA, Dotto GL, Perez-Lopez OW, Gutterres M. Phosphate removal from industrial wastewaters using layered double hydroxides. ENVIRONMENTAL TECHNOLOGY 2021; 42:3095-3105. [PMID: 31975636 DOI: 10.1080/09593330.2020.1722257] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 01/09/2020] [Indexed: 06/10/2023]
Abstract
In the present study, Mg-Al and Zn-Al layered double hydroxides (LDH) were synthesized by the co-precipitation method and employed to remove phosphate from synthetic aqueous solutions and industrial wastewaters. LDH were characterized by X-ray diffraction (XRD), N2 adsorption/desorption isotherms (BET method), thermal analyses (TG-DTA) and Fourier transform infrared spectroscopy (FTIR). XRD and TG-DTA analysis showed that Mg-Al and Zn-Al formed the LDH structure. Experimental adsorption data indicated that pseudo-second order model best described phosphate adsorption kinetics. Data of equilibrium experiments fitted well to Sips and Freundlich models for Mg-Al and Zn-Al, respectively. The effect of co-existing anions on the phosphate adsorption capacity was analyzed by utilizing industrial wastewater. The results showed that the phosphate removal decreases in the presence of other anions. Mg-Al adsorbent exhibited 74% removal of phosphate with a dosage of 5 g/L in industrial wastewater.
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Affiliation(s)
- Marina Avena Maia
- Laboratory for Leather and Environmental Studies - LACOURO, Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Laboratory of Catalytic Processes - PROCAT, Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Guilherme L Dotto
- Department of Chemical Engineering, Federal University of Santa Maria, UFSM, Santa Maria, Brazil
| | - Oscar W Perez-Lopez
- Laboratory of Catalytic Processes - PROCAT, Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Mariliz Gutterres
- Laboratory for Leather and Environmental Studies - LACOURO, Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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21
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Almeida RD, Campos JC, Souza MMVM. Synthesis and characterization of hydrocalumite for removal of fluoride from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22439-22457. [PMID: 33415642 DOI: 10.1007/s11356-020-12307-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
Fluoride can cause some diseases to humans when ingested in large quantities and for a long time. Due to this, it is necessary to remove or reduce the amount of fluoride in effluents before release into the water bodies. This work aimed to evaluate the ability of hydrocalumites synthesized by two different methodologies and calcined hydrocalumite in reducing the content of fluoride in aqueous solutions. The materials were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), N2 physisorption, thermogravimetric analysis (TGA), and differential thermal analysis (DTA). The removal capacity of fluoride ions ranged from 14.9 to 189.6 mg F- g-1. The removal mechanisms by hydrocalumites were ion exchange and adsorption at low concentrations, while at high concentrations were adsorption and precipitation of calcium fluoride. In relation to the use of calcined hydrocalumite, the removal mechanisms were ion exchange and reconstruction of structure (memory effect) in low concentrations. By the adsorption tests, it was observed that the results fit better the Langmuir isotherm model.
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Affiliation(s)
- Raquel D Almeida
- Escola de Química - Universidade Federal do Rio de Janeiro (UFRJ), Centro de Tecnologia, Bloco E, sala 206, Rio de Janeiro, RJ, CEP 21941-909, Brazil
| | - Juacyara C Campos
- Escola de Química - Universidade Federal do Rio de Janeiro (UFRJ), Centro de Tecnologia, Bloco E, sala 206, Rio de Janeiro, RJ, CEP 21941-909, Brazil
| | - Mariana M V M Souza
- Escola de Química - Universidade Federal do Rio de Janeiro (UFRJ), Centro de Tecnologia, Bloco E, sala 206, Rio de Janeiro, RJ, CEP 21941-909, Brazil.
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Abdelsadek Z, Holgado JP, Halliche D, Caballero A, Cherifi O, Gonzalez-Cortes S, Masset PJ. Examination of the Deactivation Cycle of NiAl- and NiMgAl-Hydrotalcite Derived Catalysts in the Dry Reforming of Methane. Catal Letters 2021. [DOI: 10.1007/s10562-020-03513-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Szabados M, Adél Ádám A, Traj P, Muráth S, Baán K, Bélteky P, Kónya Z, Kukovecz Á, Sipos P, Pálinkó I. Mechanochemical and wet chemical syntheses of CaIn-layered double hydroxide and its performance in a transesterification reaction compared to those of other Ca2M(III) hydrocalumites (M: Al, Sc, V, Cr, Fe, Ga) and Mg(II)-, Ni(II)-, Co(II)- or Zn(II)-based hydrotalcites. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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24
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Zhou H, Ai J, Gao H, Zhang W, Wang D. Removal of arsenic in groundwater using Slag based calcined layered double hydroxides (CLDHs) with dual functions of adsorption and photo-catalysis. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Franco JG, Ataide JA, Ferreira AHP, Mazzola PG. Lamellar compounds intercalated with anions with solar protection function: A review. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101869] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Xie T, Lu S, Zeng J, Rao L, Wang X, Win MS, Zhang D, Lu H, Liu X, Wang Q. Soluble Fe release from iron-bearing clay mineral particles in acid environment and their oxidative potential. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 726:138650. [PMID: 32305773 DOI: 10.1016/j.scitotenv.2020.138650] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/07/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
Soluble iron from atmospheric aerosol particles has toxicological effects on ambient environment due to their oxidative potential. However, the dissolution process and factors affecting this process are poorly understood. In this study, by solid phase characterization and aqueous dissolution experiments, we investigated the influence of acids, including HCl, H2SO4 and HNO3, and H+ concentration on iron dissolution rate, solubility and speciation of iron in chlorite, illite, kaolinite and pyrite. The dissolution of iron-bearing clay minerals, i.e. chlorite, illite and kaolinite, was a multi-stage process with a rapid rate in the initial stage and then decreasing rate in the following stages. In contrast, the regularly crystallized pyrite proceeded with an extremely rapid dissolution rate at very beginning and then remained almost constant. In all acid solutions, the dissolution rate was in the order of pyrite > illite > chlorite > kaolinite. H2SO4 was stronger than HCl and HNO3 in the destruction of mineral structures to release iron, while HNO3 dissolved more iron in pyrite (FeS2). High H+ concentration easily destroyed the mineral structures to release the structural or interlayer iron, whereas low H+ concentration increased the proportion of Fe (II) in clay minerals. Non-linear fitting of continuous dissolution models showed that the iron dissolution rates and iron redox speciation as functions of time were well predicted, with r2 > 0.99 for chlorite and illite, and r2 > 0.96 for kaolinite. Oxidative potential analysis proved that the dissolved iron possessed a considerable potential to generate reactive oxygen species.
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Affiliation(s)
- Tingting Xie
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Senlin Lu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
| | - Junyang Zeng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Lanfang Rao
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Xingzi Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Myat Sandar Win
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Daizhou Zhang
- Faculty of Environmental and Symbiotic Sciences, Kumamoto University, 862-8502, Japan
| | - Hui Lu
- School of Environmental Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xinchun Liu
- Institute of Desert Meteorology, China Meteorological Administration, Urumqi 83002, China
| | - Qingyue Wang
- School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
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The Investigation of Organic Binder Effect on Morphological Structure of Ceramic Membrane Support. Symmetry (Basel) 2020. [DOI: 10.3390/sym12050770] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, we investigated the effect of different organic binders on the morphologic structure of ceramic membrane support. Natural raw clay material (kaolin) was used as the main mineral for ceramic membrane support. The physical and chemical properties of kaolin powder and the supports were identified by X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET), thermo gravimetric analysis (TGA), scanning electron microscopy (SEM), particle size and zeta potential distribution. Based on the XRF test, the main composition of kaolin powder was SiO2 (47.41%) and Al2O3 (38.91%), while the rest were impurities. The FTIR spectra showed the functional groups of Si-O and Al-O. The XRD diffractogram of natural raw clay powder identified kaolinite and nacrite were the main mineral phase whereas muscovite and quartz were detected in small quantities in the sample. After prepared the ceramic membrane supports, XRD diffractogram showed that anorthite and gehlenite were detected as the main mineral phases for ethylene glycol (EG), gelatin, methocel and for polyethylene glycol (PEG), respectively. According to BET analyses, the maximum and the minimum pore width were obtained for PEG and gelatin organic binders.
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Natarajan S, Naresh R, Thiagarajan V. Removal of Anionic Dyes from Water using Polyethylene Glycol Modified Ni‐Al‐layered Double Hydroxide Nanocomposites. ChemistrySelect 2020. [DOI: 10.1002/slct.202000051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Subramanian Natarajan
- School of ChemistryBharathidasan University Palkalaiperur Tiruchirappalli Tamil Nadu India
| | - Raghupandiyan Naresh
- School of ChemistryBharathidasan University Palkalaiperur Tiruchirappalli Tamil Nadu India
- Fuel cell divisionCSIR-CERCI Karaikudi 630 003 India
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Mir ZM, Bastos A, Höche D, Zheludkevich ML. Recent Advances on the Application of Layered Double Hydroxides in Concrete-A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1426. [PMID: 32245066 PMCID: PMC7142821 DOI: 10.3390/ma13061426] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/02/2020] [Accepted: 03/16/2020] [Indexed: 12/03/2022]
Abstract
The issue of chloride induced corrosion of reinforced concrete is a serious problem affecting infrastructure globally and causing huge economic losses. As such this issue has gained a considerable attention in the scientific community in the recent past. Layered Double Hydroxides (LDHs) have recently emerged as a new class of concrete-additives with a potential to increase the chloride resistance of concrete and mitigate corrosion. LDHs are clay like structures consisting of positively charged layers of cations with associated hydroxides and exchangeable anions in between the layers. Due to this charge balanced structure, LDHs possess the property of encapsulating an anion from the environment and replacing it with an exchangeable anion present in its layers. Potential applications include chloride entrapment in concrete and delivery of corrosion inhibiting anions. However, many versatile compositions of LDHs can be easily synthesized and their application as cement additives reach far beyond corrosion mitigation in concrete. This review presents a summary of recent advances on the applications of LDH in concrete. An extensive set of recently published literature has been critically reviewed and trends have been identified.
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Affiliation(s)
- Zahid M. Mir
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research, Max-Planck Str. 1, 21502 Geesthacht, Schleswig Holstein, Germany; (D.H.); (M.L.Z.)
| | - Alexandre Bastos
- DEMaC—Department of Materials and Ceramic Engineering, and CICECO—Aveiro Institute of Materials, Universidade de Aveiro, 3810-193 Aveiro, Portugal;
| | - Daniel Höche
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research, Max-Planck Str. 1, 21502 Geesthacht, Schleswig Holstein, Germany; (D.H.); (M.L.Z.)
| | - Mikhail L. Zheludkevich
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research, Max-Planck Str. 1, 21502 Geesthacht, Schleswig Holstein, Germany; (D.H.); (M.L.Z.)
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Belskaya OB, Likholobov VA. Development of Approaches to the Formation of Platinum Sites with Desired Properties Using Layer-Structured Supports. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220030263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Natarajan S, Anitha V, Gajula GP, Thiagarajan V. Synthesis and Characterization of Magnetic Superadsorbent Fe 3O 4-PEG-Mg-Al-LDH Nanocomposites for Ultrahigh Removal of Organic Dyes. ACS OMEGA 2020; 5:3181-3193. [PMID: 32118134 PMCID: PMC7045307 DOI: 10.1021/acsomega.9b03153] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/30/2020] [Indexed: 05/12/2023]
Abstract
Considering the huge demands for economical and reliable eco-remediation applications, the goal of the present work is to synthesize cost-effective and functionally efficient magnetic layered nanocomposite adsorbents for the effective adsorption of dyes followed by easy separation from wastewater. This would ensure good reusability of adsorbents without altering its adsorption capacity in a relatively short time manner. To achieve this, different molecular weights of polyethylene glycol (PEG)-modified Fe3O4 combined with Mg-Al-layered double hydroxides (MAN-LDH) were synthesized and characterized using powder X-ray diffraction, Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, differential thermal analysis, energy-dispersive X-ray, and inductively coupled plasma optical emission spectroscopy. The efficacy of various adsorption parameters for the removal of methyl orange (MO) from water using Fe3O4-PEG-Mg-Al-LDH (FPL) adsorbents with different molecular weights of PEG (2FPL, 4FPL, and 6FPL) were investigated, and the results were compared. The maximum adsorption capacities of 2FPL, 4FPL, and 6FPL for MO were found to be 775.19, 826.44, and 833.33 mg/g, respectively. Detailed adsorption studies confirm that the higher adsorption capacity of 6FPL is due to the fast exchange of anions (NO3 -) by MO in the interlayers of MAN-LDH, larger surface area, hydrogen bonding, and electrostatic interaction between adsorbate and adsorbent. The thermodynamic data indicate that the adsorption behavior is spontaneous and endothermic in nature. The reusability of all FPL adsorbents is observed to be excellent. The MAN-LDH recoated after the 31st-cycle nanocomposites show a recovery of 100% adsorption efficiency, similar to the freshly prepared 6FPL. Such systematic studies greatly help in advancing the applications of newly functionalized nanomaterials toward eco-remediation approaches.
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Affiliation(s)
| | - Venkatesan Anitha
- School
of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, India
| | | | - Viruthachalam Thiagarajan
- School
of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, India
- E-mail: ; . Phone: +91-4366-2407053
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Silva RD, Lona LMF, Dubé MA. Evaluation of Organically Modified Layered Double Hydroxides as Fillers for the Preparation of Polymer Nanocomposites in Miniemulsion Polymerization. MACROMOL REACT ENG 2020. [DOI: 10.1002/mren.201900049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Rodrigo Duarte Silva
- Centro Universitário de Formiga, 328 Doutor Arnaldo de Senna Ave. Formiga MG 35570‐000 Brazil
| | - Liliane Maria Ferrareso Lona
- Department of Chemical Engineering University of Campinas, Cidade Universitária Zeferino Vaz 500 Albert Einstein Ave. Campinas SP 13083‐852 Brazil
| | - Marc Arnold Dubé
- Department of Chemical and Biological Engineering University of Ottawa 161 Louis Pasteur Pvt. Ottawa ON K1N 6N5 Canada
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Golovin SN, Yapryntsev MN, Ryltsova IG, Veligzhanin AA, Lebedeva OE. Novel cerium-containing layered double hydroxide. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-019-00877-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Gevers BR, Naseem S, Leuteritz A, Labuschagné FJWJ. Comparison of nano-structured transition metal modified tri-metal MgMAl-LDHs (M = Fe, Zn, Cu, Ni, Co) prepared using co-precipitation. RSC Adv 2019; 9:28262-28275. [PMID: 35530444 PMCID: PMC9071004 DOI: 10.1039/c9ra05452a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 08/29/2019] [Indexed: 11/21/2022] Open
Abstract
Comparison of layered double hydroxides (LDHs) synthesised using different methods, conditions and post-treatment is difficult to achieve because these greatly modify their material properties. This paper aims to provide a comparison of material properties for modified quintinite, where all LDHs were synthesised at the same conditions – thus allowing for direct comparison of the material properties obtained. Nano-structured materials were formed in all cases. The nano-structured transition metal (TM) MgMAl–LDHs were synthesised using constant pH co-precipitation. Five TMs (M = Fe, Co, Ni, Cu, Zn) were included in the LDH layers with molar substitutions of 0.5%, 1%, 5%, 10%, and 25% based on Mg-replacement for divalent TM cations and Al-replacement for trivalent TM cations. The materials were characterised using powder X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), scanning electron microscopy (SEM), attenuated total reflectance Fourier transform infrared analysis (ATR-FTIR), thermogravimetric analysis (TGA) and particle size analysis (PSA). The modified LDHs were synthesised free of major by-products and with similar morphologies. It could be shown that the crystallite dimensions varied between the different TM substitutions, that morphological changes were visible for some of the TMs used, that the processability depended on the TMs substituted, and that the substitution of TMs influenced the thermal stability of the LDHs. Comparison of the effect of transition metal modification on the material properties of quintinite synthesised using co-precipitation under the same conditions.![]()
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Affiliation(s)
- Bianca R Gevers
- University of Pretoria Lynnwood Road, 0002 Pretoria South Africa
| | - Sajid Naseem
- Leibniz-Institut für Polymerforschung Dresden e. V. Hohe Straße 6 01069 Dresden Germany
| | - Andreas Leuteritz
- Leibniz-Institut für Polymerforschung Dresden e. V. Hohe Straße 6 01069 Dresden Germany
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35
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Muráth S, Szabados M, Sebők D, Kukovecz Á, Kónya Z, Szilágyi I, Sipos P, Pálinkó I. Influencing the texture and morphological properties of layered double hydroxides with the most diluted solvent mixtures – The effect of 6–8 carbon alcohols and temperature. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.04.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Aladpoosh R, Montazer M. In Situ Nanoassembly of Mg-Al Layered Double Hydroxide on Polyester Fabric Surface: Mechanism, Tunable Wettability, and Boosted Thermal Features. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Razieh Aladpoosh
- Department of Textile Engineering, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Amirkabir University of Technology, Hafez Avenue, P. O. Box 15875-4413, Tehran, Iran
| | - Majid Montazer
- Department of Textile Engineering, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Amirkabir University of Technology, Hafez Avenue, P. O. Box 15875-4413, Tehran, Iran
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37
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Nestroinaia O, Ponomarenko O. Synthesis of hybrid materials based on layered double hydroxides. CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2019. [DOI: 10.15328/cb1025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The use of pesticides adversely affects not only the environment, but also human health. A promising direction in solving this problem is to obtain hybrid materials capable of controlled release of pesticides. Layered double hydroxides (LDHs) can act as a matrix. Layered double hydroxides with intercalated glyphosate anions (MgAl-Gly-LDH) were synthesized by different methods: coprecipitation at constant pH (MgAl-Gly-LDH-c), synthesis under hydrothermal conditions (MgAl-Gly-LDH-ht), microwave method (MgAl-Gly-LDH-mw) and rehydration method (MgAl-Gly-LDH-re). All the synthesized samples were analyzed by X-ray phase analysis (XRD), energy dispersive X-ray spectroscopy, scanning electron microscopy, Fourier transform infrared spectroscopy and Raman spectroscopy. It is shown that the methods of co-precipitation and synthesis under hydrothermal conditions are most suitable for the synthesis of hybrid materials. Samples of MgAl-Gly-LDH-ht and MgAl-Gly-LDH-c have a well-crystallized structure, unlike the sample of MgAl-Gly-LDH-re, in which the LDH phase is practically absent.
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38
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Structural reconstruction of mechanochemically disordered CaFe-layered double hydroxide. APPLIED CLAY SCIENCE 2019. [DOI: 10.1016/j.clay.2019.03.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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39
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Ryl’tsova IG, Roessner F, Lebedeva OE, Nestroinaya OV. Studying Hydrotalcite-Like Compounds Isomorphically Substituted with Iron and Cobalt via Inverse Temperature-Programmed Reduction. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s003602441906027x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Abstract
For the preparation and characterization of several layer double hydroxides (LDH) with inorganic interlayer anions (carbonate and nitrate) and nanohybrids, two organo-LDHs were studied in detail. The dodecylbenzene sulfonate (DBS) was used as an organic interlayer anion to modify the hydrophilic nature of the interlayer. The aim of the modification of the layered double hydroxides (LDH) was to change the hydrophilic character of the interlayer to hydrophobic with the purpose of improving its ability to adsorb several (anionic and cationic) dyes from water. These compounds have been used as adsorbents of amaranth (Am), diamine green B (DGB) and brilliant green (BG) dyes. Adsorption tests were conducted using variable pH values, contact times and initial dye concentrations (adsorption isotherms) to identify the optimum conditions for the intended purpose. Adsorbents and adsorption products were characterized by several physicochemical techniques. The results of the adsorption tests showed that the organo-LDH nanohybrids could be efficient adsorbents in the removal of studied dyes from water. Thus, it can be concluded that nanohybrids studied in this work might act as suitable supports in the design of adsorbents for the removal of a wide spectrum of dyes with the aim of reducing the adverse effects on water resources.
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Szabados M, Ádám AA, Kónya Z, Kukovecz Á, Carlson S, Sipos P, Pálinkó I. Effects of ultrasonic irradiation on the synthesis, crystallization, thermal and dissolution behaviour of chloride-intercalated, co-precipitated CaFe-layered double hydroxide. ULTRASONICS SONOCHEMISTRY 2019; 55:165-173. [PMID: 30853533 DOI: 10.1016/j.ultsonch.2019.02.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/26/2019] [Accepted: 02/25/2019] [Indexed: 02/08/2023]
Abstract
The output power (30-150 W) and the periodicity (20-100%) of ultrasound emission were varied in a wide range to regulate and improve the crystallization process in the commonly used co-precipitation technique of chloride-intercalated CaFe-layered double hydroxides. The influence of ultrasound irradiation on the as-prepared materials was studied by X-ray diffractometry, dynamic light scattering, UV-Vis-NIR diffuse reflectance spectroscopy, specific surface area measurement, pore size analysis, ion-selective electrode potentiometric investigations and thermogravimetry. Additionally, structural alterations due to heat treatment at various temperatures were followed in detail by Fourier-transform infrared and X-ray absorption spectroscopies as well as scanning electron microscopy. The ultrasonic treatment was capable of controlling the sizes of primarily formed (from 19 nm to 30 nm) as well as the aggregated (secondary) particles (between 450 nm and 700 nm), and thus modifying their textural parameters and enhancing the incorporation of chloride anions into the interlamellar space. For the first time, the optical energy gap of CaFe-LDH was reported here depending on the nature of applied stirring (4.18-4.34 eV). The heat-treatment investigations revealed that the layered structure was stabile until 200 °C, even at the atomic level.
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Affiliation(s)
- Márton Szabados
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary; Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary
| | - Adél Anna Ádám
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary; Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, Szeged H-6720, Hungary; MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich B tér 1, Szeged H-6720, Hungary
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, Szeged H-6720, Hungary
| | - Stefan Carlson
- MAX-IV Laboratory, Ole Römers väg 1, Lund SE-223 63, Sweden
| | - Pál Sipos
- Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary; Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged H-6720, Hungary
| | - István Pálinkó
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary; Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary.
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A Double Barrier Technique with Hydrotalcites for Pb Immobilisation from Electric Arc Furnace Dust. MATERIALS 2019; 12:ma12040633. [PMID: 30791574 PMCID: PMC6416624 DOI: 10.3390/ma12040633] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/08/2019] [Accepted: 02/18/2019] [Indexed: 11/17/2022]
Abstract
A new line of mortars incorporating hydrotalcites was developed. This research article shows the results of a study of a double barrier technique (DBT) for Pb immobilisation from electric arc furnace dust (EAFD) in mortars with the addition of three different hydrotalcites (H1, H2, and H3). Electric arc furnace dust (EAFD) is a hazardous waste due to its heavy metal leachability. The aim was to obtain a mortar in which, due to its chemical composition, heavy metal leaching satisfied environmental criteria. Previously, a physical and chemical characterisation of mortar material components was carried out. The leaching behaviour of Pb from EAFD in double barrier (DB) mortars with different hydrotalcites was analysed for compressive strength to determine treatment effectiveness. DB mortars could be considered monoliths because their compressive strengths were higher than 1 MPa but exhibited a decrease due to hydrotalcite incorporation. The mortar EAFD25_H2 (with ethylenediaminetetraacetate (EDTA) in the interlayer of the hydrotalcite) showed one minor reduction in compressive strength with respect to the reference mortar because formation of Portlandite was observed, which is a characteristic of cement hydration. The conventional immobilisation mortar (EAFD25) did not achieve Pb immobilisation. However, DB mortars with dimercaptosuccinate (DMSA) in the interlayer of the hydrotalcite reduced Pb release by ~50%, from 20.29 mg kg−1 (EAFD25) to 9.88 mg kg−1 (EAFD25_H3). In addition, EAFD25_H3 included the lowest hydrotalcite content, thereby improving the immobilisation ratio. The results of this study contribute to better Pb immobilisation, thus satisfying environmental criteria.
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Rebitski EP, Darder M, Aranda P. Layered double hydroxide/sepiolite hybrid nanoarchitectures for the controlled release of herbicides. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1679-1690. [PMID: 31467829 PMCID: PMC6693401 DOI: 10.3762/bjnano.10.163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/25/2019] [Indexed: 05/20/2023]
Abstract
In this work, organic-inorganic hybrid nanoarchitectures were prepared in a single coprecipitation step by assembling magnesium-aluminum layered double hydroxides (MgAl-LDH) and a sepiolite fibrous clay, with the simultaneous encapsulation of the herbicide 2-methyl-4-chlorophenoxyacetic acid (MCPA) as the MgAl-LDH retains its ion exchange properties. The synthetic procedure was advantageous in comparison to the incorporation of MCPA by ion exchange after the formation of the LDH/sepiolite nanoarchitecture in a previous step, as it was less time consuming and gave rise to a higher loading of MCPA. The resulting MCPA-LDH/sepiolite nanoarchitectures were characterized by various physicochemical techniques (XRD, FTIR and 29Si NMR spectroscopies, CHN analysis and SEM) that revealed interactions of LDH with the sepiolite fibers through the silanol groups present on the outer surface of sepiolite, together with the intercalation of MCPA in the LDH confirmed by the increase in the basal spacing from 0.77 nm for the pristine LDH to 2.32 nm for the prepared materials. The amount of herbicide incorporated in the hybrid nanoarchitectures prepared by the single-step coprecipitation method surpassed the CEC of LDH (ca. 330 mEq/100 g), with values reaching 445 mEq/100 g LDH for certain compositions. This suggests a synergy between the inorganic solids that allows the nanoarchitecture to exhibit better adsorption properties than the separate components. Additionally, in the release assays, the herbicide incorporated in the hybrid nanoarchitectures could be completely released, which confirms its suitability for agricultural applications. In order to achieve a more controlled release of the herbicide and to act for several days on the surface of the soil, the hybrid nanoarchitectures were encapsulated in a biopolymer matrix of alginate/zein and shaped into spheres. In in vitro tests carried out in bidistilled water, a continuous release of MCPA from the bionanocomposite beads was achieved for more than a week, while the non-encapsulated materials released the 100% of MCPA in 48 h. Besides, the encapsulation may allow for better handling and transport of the herbicide.
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Affiliation(s)
- Ediana Paula Rebitski
- Instituto de Ciencia de Materiales de Madrid, CSIC, c/ Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
| | - Margarita Darder
- Instituto de Ciencia de Materiales de Madrid, CSIC, c/ Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
| | - Pilar Aranda
- Instituto de Ciencia de Materiales de Madrid, CSIC, c/ Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
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44
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Molano-Mendoza M, Donneys-Victoria D, Marriaga-Cabrales N, Mueses MA, Li Puma G, Machuca-Martínez F. Synthesis of Mg-Al layered double hydroxides by electrocoagulation. MethodsX 2018; 5:915-923. [PMID: 30151351 PMCID: PMC6107904 DOI: 10.1016/j.mex.2018.07.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 07/28/2018] [Indexed: 11/26/2022] Open
Abstract
Recently, layered double hydroxides (LDHs) have attracted much consideration due to their versatility and easily manipulating properties and their potential applications such as anion exchangers, support of catalysts, flame retardants, biomedical drug delivery. A novel method for the in-situ preparation in situ of LDHs, using electrocoagulation (EC) processes was developed, the EC process was performed under two different conditions, at 5 mA m−2, changing polarity of the electrodes to find out the composition that leads to LDHs generation. The final product was characterized using XRD, BET and FTIR techniques. This method presented the following advantages: (1) Simultaneously LDHs synthesis and wastewater treatment by ion removal; (2) Polarity control allows to manipulate the M2+/M3+ molar ratio, LDHs properties and its potential applications; (3) The method spent less time to carry out the synthesis and; (4) it did not need complicated solid-liquid separation processes.
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Affiliation(s)
| | | | | | - Miguel Angel Mueses
- Department of Chemical Engineering, Universidad de Cartagena, A.A. 1382, Postal 195, Cartagena, Colombia
| | - Gianluca Li Puma
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
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45
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Hydrotalcite and Hydrocalumite in Mortar Binders from the Medieval Castle of Portilla (Álava, North Spain): Accurate Mineralogical Control to Achieve More Reliable Chronological Ages. MINERALS 2018. [DOI: 10.3390/min8080326] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mortars from different stratigraphic units at Portilla Castle (Alava, North Spain) have been analyzed for mineralogical characterization before radiocarbon dating. The mortar binder at Portilla Castle is composed not only of neoformation calcite but also of double-layered hydroxide (LDH) minerals such as hydrotalcite and hydrocalumite. The mineralogy of several fractions of the binder has been analyzed to determine the granulometric distribution of minerals in the binder. The continuous monitoring of mineralogy during the extraction of different grain size fractions has been performed by using a scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermogravimetric analyses (TGA). Hydrotalcite and hydrocalumite-bearing mortar binders give older ages than expected since they introduce dead carbon into the system.
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46
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Guellati O, Harat A, Momodu D, Dangbegnon J, Romero T, Begin D, Pham-Huu C, Manyala N, Guerioune M. Electrochemical measurements of 1D/2D/3DNi-Co bi-phase mesoporous nanohybrids synthesized using free-template hydrothermal method. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.112] [Citation(s) in RCA: 8] [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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47
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Richetta M, Varone A, Mattoccia A, Medaglia P, Kaciulis S, Mezzi A, Soltani P, Pizzoferrato R. Preparation, intercalation, and characterization of nanostructured (Zn, Al) layered double hydroxides (LDHs). SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6468] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M. Richetta
- Department of Industrial Engineering; University of Rome “Tor Vergata”; Rome 00133 Italy
| | - A. Varone
- Department of Industrial Engineering; University of Rome “Tor Vergata”; Rome 00133 Italy
| | - A. Mattoccia
- Department of Industrial Engineering; University of Rome “Tor Vergata”; Rome 00133 Italy
| | - P.G. Medaglia
- Department of Industrial Engineering; University of Rome “Tor Vergata”; Rome 00133 Italy
| | - S. Kaciulis
- ISMN-CNR; PO Box 10, 00015 Monterotondo Stazione Rome Italy
| | - A. Mezzi
- ISMN-CNR; PO Box 10, 00015 Monterotondo Stazione Rome Italy
| | - P. Soltani
- ISMN-CNR; PO Box 10, 00015 Monterotondo Stazione Rome Italy
| | - R. Pizzoferrato
- Department of Industrial Engineering; University of Rome “Tor Vergata”; Rome 00133 Italy
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48
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Siebecker MG, Sparks DL. Structural Differentiation between Layered Single (Ni) and Double Metal Hydroxides (Ni–Al LDHs) Using Wavelet Transformation. J Phys Chem A 2017; 121:6992-6999. [DOI: 10.1021/acs.jpca.7b07940] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew G. Siebecker
- University of Delaware, Delaware Environmental Institute
(DENIN), Interdisciplinary Science and Engineering (ISE) Laboratory, 221 Academy Street, Newark, Delaware 19716, United States
| | - Donald L. Sparks
- University of Delaware, Delaware Environmental Institute
(DENIN), Interdisciplinary Science and Engineering (ISE) Laboratory, 221 Academy Street, Newark, Delaware 19716, United States
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Totaro G, Sisti L, Celli A, Askanian H, Hennous M, Verney V, Leroux F. Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in PBS bionanocomposites. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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50
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Szabados M, Varga G, Kónya Z, Kukovecz Á, Carlson S, Sipos P, Pálinkó I. Ultrasonically-enhanced preparation, characterization of CaFe-layered double hydroxides with various interlayer halide, azide and oxo anions (CO 32-, NO 3-, ClO 4-). ULTRASONICS SONOCHEMISTRY 2017; 40:853-860. [PMID: 28946496 DOI: 10.1016/j.ultsonch.2017.08.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 08/24/2017] [Accepted: 08/24/2017] [Indexed: 11/29/2022]
Abstract
An ultrasonically-enhanced mechanochemical method was developed to synthesize CaFe-layered double hydroxides (LDHs) with various interlayer anions (CO32-, NO3-, ClO4-, N3-, F-, Cl-, Br- and I-). The duration of pre-milling and ultrasonic irradiation and the variation of synthesis temperature in the wet chemical step were investigated to obtain the optimal parameters of preparation. The main method to characterize the products was X-ray diffractometry, but infrared and synchrotron-based X-ray absorption spectroscopies as well as thermogravimetric measurements were also used to learn about fine structural details. The synthesis method afforded successful intercalation of the anions, among others the azide anion, a rarely used counter ion providing a system, which enables safe handling the otherwise highly reactive anion. The X-ray absorption spectroscopic measurements revealed that the quality of the interlayered anions could modulate the spatial arrangement of the calcium ions around the iron(III) ions, but only in the second coordination sphere.
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Affiliation(s)
- Márton Szabados
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary; Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary
| | - Gábor Varga
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary; Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, Szeged H-6720, Hungary; MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich B tér 1, Szeged H-6720, Hungary
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, Szeged H-6720, Hungary
| | - Stefan Carlson
- MAX IV Laboratory, University of Lund, Ole Römers väg 1, Lund SE-223 63, Sweden
| | - Pál Sipos
- Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary; Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged H-6720, Hungary
| | - István Pálinkó
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary; Material and Solution Structure Research Group, Institute of Chemistry, University of Szeged, Aradi Vértanúk tere 1, Szeged H-6720, Hungary.
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