1
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Oulfarsi M, David N, Aranda L, Medjahdi G, Ihou-Mouko H, Dauscher A. Thermal Stability of Mg 2Si 0.6Sn 0.4 under Oxidation Conditions. ACS Appl Mater Interfaces 2023; 15:22616-22625. [PMID: 37126574 DOI: 10.1021/acsami.2c21971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The use of Mg2Si0.6Sn0.4 under air in thermoelectric modules in the mid-temperature range of 400-600 °C is linked to its ability to resist oxidation. In this study, oxidation experiments performed at 400 °C under air evidenced the stability of the material, either under static conditions (up to 100 h) or under severe heating-cooling cyclic conditions (up to 400 cycles), showing its ability to be used in a reliable way at this temperature. By combining thermogravimetry, scanning electron microscopy, temperature X-ray diffraction analysis, and mechanical and thermodynamic considerations, a mechanism is proposed explaining how Mg2Si0.6Sn0.4 further undergoes decomposition with time under air when treated above 500 °C. The presence of Sn and the formation of various oxides are the key parameters of the material's degradation.
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Affiliation(s)
- Mostafa Oulfarsi
- Université de Lorraine, UMR CNRS 7198, Institut Jean Lamour, Nancy 54011, France
| | - Nicolas David
- Université de Lorraine, UMR CNRS 7198, Institut Jean Lamour, Nancy 54011, France
| | - Lionel Aranda
- Université de Lorraine, UMR CNRS 7198, Institut Jean Lamour, Nancy 54011, France
| | - Ghouti Medjahdi
- Université de Lorraine, UMR CNRS 7198, Institut Jean Lamour, Nancy 54011, France
| | | | - Anne Dauscher
- Université de Lorraine, UMR CNRS 7198, Institut Jean Lamour, Nancy 54011, France
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2
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Dhayal SK, Lund M, van den Brink J, Medjahdi G, Celzard A, Fierro V, Gardiennet C, Pasc A, Canilho N. Enhancing the activity of biocatalysts supported on calcium phosphate by inducing mesoporosity with phosphopeptides. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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3
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El Hajj I, Speyer L, Cahen S, Berger P, Medjahdi G, Lagrange P, Hérold C. Simultaneous intercalation of lithium, potassium and strontium into graphite in molten salts medium. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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4
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Mabrouk S, Rinnert H, Balan L, Jasniewski J, Medjahdi G, Ben Chaabane R, Schneider R. Aqueous synthesis of core/shell/shell ZnSeS/Cu:ZnS/ZnS quantum dots and their use as a probe for the selective photoluminescent detection of Pb2+ in water. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Mabrouk S, Rinnert H, Balan L, Jasniewski J, Blanchard S, Medjahdi G, Ben Chaabane R, Schneider R. Highly Luminescent and Photostable Core/Shell/Shell ZnSeS/Cu:ZnS/ZnS Quantum Dots Prepared via a Mild Aqueous Route. Nanomaterials (Basel) 2022; 12:3254. [PMID: 36145042 PMCID: PMC9504198 DOI: 10.3390/nano12183254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/04/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
An aqueous-phase synthesis of 3-mercaptopropionic acid (3-MPA)-capped core/shell/shell ZnSeS/Cu:ZnS/ZnS QDs was developed. The influence of the Cu-dopant location on the photoluminescence (PL) emission intensity was investigated, and the results show that the introduction of the Cu dopant in the first ZnS shell leads to QDs exhibiting the highest PL quantum yield (25%). The influence of the Cu-loading in the dots on the PL emission was also studied, and a shift from blue-green to green was observed with the increase of the Cu doping from 1.25 to 7.5%. ZnSeS/Cu:ZnS/ZnS QDs exhibit an average diameter of 2.1 ± 0.3 nm and are stable for weeks in aqueous solution. Moreover, the dots were found to be photostable under the continuous illumination of an Hg-Xe lamp and in the presence of oxygen, indicating their high potential for applications such as sensing or bio-imaging.
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Affiliation(s)
- Salima Mabrouk
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France
- Laboratoire Interfaces et Matériaux Avancés, LIMA, LR011ES55, Faculté des Sciences de Monastir, Avenue de l’Environnement, Monastir 5019, Tunisia
| | - Hervé Rinnert
- Université de Lorraine, CNRS, IJL, F-54000 Nancy, France
| | - Lavinia Balan
- CEMHTI-UPR 3079 CNRS, Site Haute Température, 1D Avenue de la Recherche Scientifique, 45071 Orléans, France
| | | | - Sébastien Blanchard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France
| | | | - Rafik Ben Chaabane
- Laboratoire Interfaces et Matériaux Avancés, LIMA, LR011ES55, Faculté des Sciences de Monastir, Avenue de l’Environnement, Monastir 5019, Tunisia
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6
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Mahmoudi M, Dufour A, Bettahar MEM, Medjahdi G, Ouederni A, Gadiou R. Hydrogen production by methane decomposition over Ni-doped activated carbons: effect of the activation method. CR CHIM 2022. [DOI: 10.5802/crchim.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Galiyeva P, Rinnert H, Bouguet-Bonnet S, Leclerc S, Balan L, Alem H, Blanchard S, Jasniewski J, Medjahdi G, Uralbekov B, Schneider R. Mn-Doped Quinary Ag-In-Ga-Zn-S Quantum Dots for Dual-Modal Imaging. ACS Omega 2021; 6:33100-33110. [PMID: 34901661 PMCID: PMC8655898 DOI: 10.1021/acsomega.1c05441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Doping of transition metals within a semiconductor quantum dot (QD) has a high impact on the optical and magnetic properties of the QD. In this study, we report the synthesis of Mn2+-doped Ag-In-Ga-Zn-S (Mn:AIGZS) QDs via thermolysis of a dithiocarbamate complex of Ag+, In3+, Ga3+, and Zn2+ and of Mn(stearate)2 in oleylamine. The influence of the Mn2+ loading on the photoluminescence (PL) and magnetic properties of the dots are investigated. Mn:AIGZS QDs exhibit a diameter of ca. 2 nm, a high PL quantum yield (up to 41.3% for a 2.5% doping in Mn2+), and robust photo- and colloidal stabilities. The optical properties of Mn:AIGZS QDs are preserved upon transfer into water using the glutathione tetramethylammonium ligand. At the same time, Mn:AIGZS QDs exhibit high relaxivity (r 1 = 0.15 mM-1 s-1 and r 2 = 0.57 mM-1 s-1 at 298 K and 2.34 T), which shows their potential applicability for bimodal PL/magnetic resonance imaging (MRI) probes.
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Affiliation(s)
| | - Hervé Rinnert
- Université
de Lorraine, CNRS, IJL, F-54000 Nancy, France
| | | | | | - Lavinia Balan
- CEMHTI-UPR
3079 CNRS, Site Haute Température, 1D Avenue de la Recherche Scientifique, 45071 Orléans, France
| | - Halima Alem
- Université
de Lorraine, CNRS, IJL, F-54000 Nancy, France
| | - Sébastien Blanchard
- Sorbonne
Université, CNRS, Institut Parisien de Chimie Moléculaire,
IPCM, F-75005 Paris, France
| | | | | | - Bolat Uralbekov
- Center
of Physical-Chemical Methods of Research and Analysis, Al-Farabi Kazakh National University, Al-Farabi Avenue, 71, 050040 Almaty, Kazakhstan
- LLP
≪EcoRadSM≫, Al-Farabi Avenue, 71, 050040 Almaty, Kazakhstan
| | - Raphaël Schneider
- Laboratoire
Réactions et Génie des Procédés, Université de Lorraine, 54000 Nancy, France
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8
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Chouchene B, Gries T, Balan L, Medjahdi G, Schneider R. Graphitic carbon nitride/SmFeO 3 composite Z-scheme photocatalyst with high visible light activity. Nanotechnology 2020; 31:465704. [PMID: 32853176 DOI: 10.1088/1361-6528/abadc7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, novel heterostructured photocatalysts associating graphitic carbon nitride (g-CN) and SmFeO3 were prepared via a mixing-ultrasonication process. Structural, optical and morphological characterizations demonstrate that the interfacial junction between g-CN and SmFeO3 is well established for all g-CN/SmFeO3 composites prepared with g-CN:SmFeO3 weight ratio of 20:80, 50:50 and 80:20. The g-CN/SmFeO3 (80:20) composite exhibits the highest photocatalytic activity for the degradation of pollutants like the Orange II dye and the tetracycline hydrochloride antibiotic under visible light irradiation. This high photocatalytic activity originates from the enhanced light absorption over the whole visible region compared to pure g-CN and from the improved separation and transfer of photogenerated electron/hole pairs as demonstrated by photoluminescence and photocurrent measurements. A Z-scheme charge carrier transfer mechanism was demonstrated for the photocatalytic reactions. The g-CN/SmFeO3 (80:20) catalyst was also demonstrated to be stable and can be reused up to six times without significant alteration of the activity.
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Affiliation(s)
- Bilel Chouchene
- Université de Lorraine, CNRS, LRGP, Nancy F-54000, France. Université de Lorraine, CNRS, IJL, Nancy F-54000, France
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9
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Kulachenkov NK, Sun D, Mezenov YA, Yankin AN, Rzhevskiy S, Dyachuk V, Nominé A, Medjahdi G, Pidko EA, Milichko VA. Photochromic Free MOF-Based Near-Infrared Optical Switch. Angew Chem Int Ed Engl 2020; 59:15522-15526. [PMID: 32339393 DOI: 10.1002/anie.202004293] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Indexed: 12/28/2022]
Abstract
We demonstrate herein an all-optical switch based on stimuli-responsive and photochromic-free metal-organic framework (HKUST-1). Ultrafast near-infrared laser pulses stimulate a reversible 0.4 eV blue shift of the absorption band with up to 200 s-1 rate due to dehydration and concomitant shrinking of the structure-forming [Cu2 C4 O8 ] cages of HKUST-1. Such light-induced switching enables the remote modulation of intensities of photoluminescence of single crystals of HKUST-1 as well visible radiation passing through the crystal by 2 order of magnitude. This opens up the possibility of utilyzing stimuli-responsive MOFs for all-optical data processing devices.
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Affiliation(s)
- Nikita K Kulachenkov
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia
| | - Dapeng Sun
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands
| | - Yuri A Mezenov
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia
| | - Andrei N Yankin
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia
| | - Sergey Rzhevskiy
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia
| | - Vyacheslav Dyachuk
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia
| | - Alexandre Nominé
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia.,Institut Jean Lamour, Université de Lorraine, UMR CNRS 7198, 54011, Nancy, France
| | - Ghouti Medjahdi
- Institut Jean Lamour, Université de Lorraine, UMR CNRS 7198, 54011, Nancy, France
| | - Evgeny A Pidko
- Inorganic Systems Engineering Group, Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, The Netherlands
| | - Valentin A Milichko
- Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia.,Institut Jean Lamour, Université de Lorraine, UMR CNRS 7198, 54011, Nancy, France
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10
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Gherib H, Boudjahem AG, Medjahdi G. Effect of Preparation Method and Support on Catalytic Behavior of Rhodium Nanoparticles in Styrene Hydrogenation. Kinet Catal 2020. [DOI: 10.1134/s0023158420030106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Kulachenkov NK, Sun D, Mezenov YA, Yankin AN, Rzhevskiy S, Dyachuk V, Nominé A, Medjahdi G, Pidko EA, Milichko VA. Photochromic Free MOF‐Based Near‐Infrared Optical Switch. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Dapeng Sun
- Inorganic Systems Engineering Group Department of Chemical Engineering Delft University of Technology 2629 HZ Delft The Netherlands
| | - Yuri A. Mezenov
- Department of Physics and Engineering ITMO University St. Petersburg 197101 Russia
| | - Andrei N. Yankin
- Department of Physics and Engineering ITMO University St. Petersburg 197101 Russia
| | - Sergey Rzhevskiy
- Department of Physics and Engineering ITMO University St. Petersburg 197101 Russia
| | - Vyacheslav Dyachuk
- Department of Physics and Engineering ITMO University St. Petersburg 197101 Russia
| | - Alexandre Nominé
- Department of Physics and Engineering ITMO University St. Petersburg 197101 Russia
- Institut Jean Lamour Université de Lorraine, UMR CNRS 7198 54011 Nancy France
| | - Ghouti Medjahdi
- Institut Jean Lamour Université de Lorraine, UMR CNRS 7198 54011 Nancy France
| | - Evgeny A. Pidko
- Inorganic Systems Engineering Group Department of Chemical Engineering Delft University of Technology 2629 HZ Delft The Netherlands
| | - Valentin A. Milichko
- Department of Physics and Engineering ITMO University St. Petersburg 197101 Russia
- Institut Jean Lamour Université de Lorraine, UMR CNRS 7198 54011 Nancy France
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12
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Mrad M, Ben Chaabane T, Rinnert H, Lavinia B, Jasniewski J, Medjahdi G, Schneider R. Aqueous Synthesis for Highly Emissive 3-Mercaptopropionic Acid-Capped AIZS Quantum Dots. Inorg Chem 2020; 59:6220-6231. [DOI: 10.1021/acs.inorgchem.0c00347] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Maroua Mrad
- Université de Carthage, Faculté des Sciences de Bizerte, LR 18 ES11 Laboratoire des composés hétéro-organiques et des matériaux nanostructurés, 7021 Jarzouna, Bizerte, Tunisia
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France
| | - Tahar Ben Chaabane
- Université de Carthage, Faculté des Sciences de Bizerte, LR 18 ES11 Laboratoire des composés hétéro-organiques et des matériaux nanostructurés, 7021 Jarzouna, Bizerte, Tunisia
| | - Hervé Rinnert
- Université de Lorraine, CNRS, IJL, F-54000 Nancy, France
| | - Balan Lavinia
- CEMHTI-UPR 3079 CNRS, Site Haute Température, 1D avenue de la Recherche Scientifique, 45071 Orléans, France
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13
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El-Hnayn R, Canabady-Rochelle L, Desmarets C, Balan L, Rinnert H, Joubert O, Medjahdi G, Ben Ouada H, Schneider R. One-Step Synthesis of Diamine-Functionalized Graphene Quantum Dots from Graphene Oxide and Their Chelating and Antioxidant Activities. Nanomaterials (Basel) 2020; 10:E104. [PMID: 31947956 PMCID: PMC7023243 DOI: 10.3390/nano10010104] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 12/19/2022]
Abstract
2,2'-(Ethylenedioxy)bis(ethylamine)-functionalized graphene quantum dots (GQDs) were prepared under mild conditions from graphene oxide (GO) via oxidative fragmentation. The as-prepared GQDs have an average diameter of ca. 4 nm, possess good colloidal stability, and emit strong green-yellow light with a photoluminescence (PL) quantum yield of 22% upon excitation at 375 nm. We also demonstrated that the GQDs exhibit high photostability and the PL intensity is poorly affected while tuning the pH from 1 to 8. Finally, GQDs can be used to chelate Fe(II) and Cu(II) cations, scavenge radicals, and reduce Fe(III) into Fe(II). These chelating and reducing properties that associate to the low cytotoxicity of GQDs show that these nanoparticles are of high interest as antioxidants for health applications.
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Affiliation(s)
- Rabeb El-Hnayn
- Laboratoire des Interfaces et des Matériaux Avancés, Faculté des Sciences de Monastir, Avenue de l’Environnement, 5019 Monastir, Tunisia; (R.E.-H.); (H.B.O.)
| | | | - Christophe Desmarets
- Institut Parisien de Chimie Moléculaire UMR-CNRS 8232, Sorbonne Université, 4 Place Jussieu, 75252 Paris CEDEX 5, France;
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France;
- CEMHTI-UPR3079 CNRS, Site Haute Température, 1D avenue de la Recherche Scientifique, 45071 Orléans, France
| | - Hervé Rinnert
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, 54506 Vandoeuvre-lès-Nancy CEDEX, France; (H.R.); (O.J.); (G.M.)
| | - Olivier Joubert
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, 54506 Vandoeuvre-lès-Nancy CEDEX, France; (H.R.); (O.J.); (G.M.)
| | - Ghouti Medjahdi
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, 54506 Vandoeuvre-lès-Nancy CEDEX, France; (H.R.); (O.J.); (G.M.)
| | - Hafedh Ben Ouada
- Laboratoire des Interfaces et des Matériaux Avancés, Faculté des Sciences de Monastir, Avenue de l’Environnement, 5019 Monastir, Tunisia; (R.E.-H.); (H.B.O.)
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés, LRGP, Université de Lorraine, CNRS, F-54000 Nancy, France;
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14
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Cahen S, El-Hajj I, Speyer L, Berger P, Medjahdi G, Lagrange P, Lamura G, Hérold C. Original synthesis route of bulk binary superconducting graphite intercalation compounds with strontium, barium and ytterbium. NEW J CHEM 2020. [DOI: 10.1039/c9nj06423k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis route in molten salts allows the bulk intercalation into graphite of elements hardly intercalated by themselves. XRD and ion beam analyses show for instance the possible synthesis of SrC6.
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Affiliation(s)
- S. Cahen
- Institut Jean Lamour
- UMR 7198 CNRS-UL
- 54011 Nancy Cedex
- France
| | - I. El-Hajj
- Institut Jean Lamour
- UMR 7198 CNRS-UL
- 54011 Nancy Cedex
- France
| | - L. Speyer
- Institut Jean Lamour
- UMR 7198 CNRS-UL
- 54011 Nancy Cedex
- France
| | - P. Berger
- NIMBE
- CEA
- CNRS
- Université Paris-Saclay
- Gif sur Yvette Cedex
| | - G. Medjahdi
- Institut Jean Lamour
- UMR 7198 CNRS-UL
- 54011 Nancy Cedex
- France
| | - P. Lagrange
- Institut Jean Lamour
- UMR 7198 CNRS-UL
- 54011 Nancy Cedex
- France
| | | | - C. Hérold
- Institut Jean Lamour
- UMR 7198 CNRS-UL
- 54011 Nancy Cedex
- France
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15
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Karakashov B, Fierro V, Mathieu S, Gadonneix P, Medjahdi G, Celzard A. Structural Characterisation and Chemical Stability of Commercial Fibrous Carbons in Molten Lithium Salts. Materials (Basel) 2019; 12:ma12244232. [PMID: 31861115 PMCID: PMC6947428 DOI: 10.3390/ma12244232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 11/23/2019] [Accepted: 12/13/2019] [Indexed: 11/16/2022]
Abstract
The growing trend towards sustainable energy production, while intermittent, can meet all the criteria of energy demand through the use and development of high-performance thermal energy storage (TES). In this context, high-temperature hybrid TES systems, based upon the combination of fibrous carbon hosts and peritectic phase change materials (PCMs), are seen as promising solutions. One of the main conditions for the operational viability of hybrid TES is the chemical inertness between the components of the system. Thus, the chemical stability and compatibility of several commercial carbon felts (CFs) and molten lithium salts are discussed in the present study. Commercial CFs were characterised by elemental analysis, X-ray diffraction (XRD) and Raman spectroscopy before being tested in molten lithium salts: LiOH, LiBr, and the LiOH/LiBr peritectic mixture defined as our PCM of interest. The chemical stability was evaluated by gravimetry, gas adsorption and scanning electron microscopy (SEM). Among the studied CFs, the materials with the highest carbon purity and the most graphitic structure showed improved stability in contact with molten lithium salts, even under the most severe test conditions (750 °C). The application of the Arrhenius law allowed calculating the activation energy (in the range of 116 to 165 kJ mol-1), and estimating the potential stability of CFs at actual application temperatures. These results confirmed the applicability of CFs as porous hosts for stabilising peritectic PCMs based on molten lithium salts.
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Affiliation(s)
- Blagoj Karakashov
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
| | - Vanessa Fierro
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
| | - Sandrine Mathieu
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (S.M.); (G.M.)
| | - Philippe Gadonneix
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
| | - Ghouti Medjahdi
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (S.M.); (G.M.)
| | - Alain Celzard
- Institut Jean Lamour, Université de Lorraine, CNRS, IJL, F-88000 Epinal, France; (B.K.); (V.F.); (P.G.)
- Correspondence: ; Tel.: +33-372-74-96-14
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16
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Ben Abdelaziz M, Chouchene B, Balan L, Gries T, Medjahdi G, Ezzaouia H, Schneider R. One pot synthesis of bismuth oxide/graphitic carbon nitride composites with high photocatalytic activity. Molecular Catalysis 2019. [DOI: 10.1016/j.mcat.2018.12.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Galiyeva P, Alem H, Rinnert H, Balan L, Blanchard S, Medjahdi G, Uralbekov B, Schneider R. Highly fluorescent, color tunable and magnetic quaternary Ag–In–Mn–Zn–S quantum dots. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00131j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report a simple and effective synthesis of Mn : AIZS quantum dots exhibiting color-tunable photoluminescence emission and magnetic properties.
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Affiliation(s)
- Perizat Galiyeva
- Laboratoire Réactions et Génie des Procédés
- Université de Lorraine
- CNRS
- LRGP
- F-54000 Nancy
| | - Halima Alem
- Institut Jean Lamour
- Université de Lorraine
- CNRS
- F-54506 Vandoeuvre-lès-Nancy
- France
| | - Hervé Rinnert
- Institut Jean Lamour
- Université de Lorraine
- CNRS
- F-54506 Vandoeuvre-lès-Nancy
- France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M)
- CNRS
- UMR 7361
- 68093 Mulhouse
- France
| | - Sébastien Blanchard
- Sorbonne Université
- CNRS
- Institut Parisien de Chimie Moléculaire
- IPCM
- F-75005 Paris
| | - Ghouti Medjahdi
- Institut Jean Lamour
- Université de Lorraine
- CNRS
- F-54506 Vandoeuvre-lès-Nancy
- France
| | | | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés
- Université de Lorraine
- CNRS
- LRGP
- F-54000 Nancy
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18
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Achouri F, Merlin C, Corbel S, Alem H, Mathieu L, Balan L, Medjahdi G, Ben Said M, Ghrabi A, Schneider R. ZnO Nanorods with High Photocatalytic and Antibacterial Activity under Solar Light Irradiation. Materials (Basel) 2018; 11:ma11112158. [PMID: 30388867 PMCID: PMC6266891 DOI: 10.3390/ma11112158] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/26/2018] [Accepted: 10/29/2018] [Indexed: 12/14/2022]
Abstract
ZnO nanorods (NRs) with an average length and diameter of 186 and 20 nm, respectively, were prepared through a mild solvothermal route and used as photocatalysts either as dispersed powder or immobilized on glass slides. The ZnO NRs were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Dispersed ZnO NRs and, to a lesser extent, immobilized ZnO NRs were demonstrated to exhibit high photocatalytic activity under simulated sunlight of low intensity (5.5 mW/cm2) both for the degradation of the Orange II dye and for Escherichia coli bacterial decontamination (2.5-fold survival decrease after 180 min irradiation for immobilized NRs). SEM, atomic force microscopy (AFM), fluorescence spectroscopy, and epifluorescence microscopy demonstrate that cell surface damages are responsible of bacterial inactivation. The immobilized ZnO NRs could be reused up to five times for bacterial decontamination at comparable efficiency and therefore have great potential for real environmental applications.
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Affiliation(s)
- Faouzi Achouri
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France.
- Centre de Recherches et Technologies des Eaux (CERTE), Laboratoire Eaux Usées et Environnement, P.O. Box 273, Soliman, Tunis 8020, Tunisia.
- Faculté des Sciences de Bizerte, Université de Carthage, Jarzouna, Bizerte 7021, Tunisia.
| | | | - Serge Corbel
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France.
| | - Halima Alem
- Université de Lorraine, CNRS, IJL, F-54000 Nancy, France.
| | - Laurence Mathieu
- Université de Lorraine, CNRS, LCPME, F-5v4000 Nancy, France.
- EPHE, PSL Research University, LCPME, UMR 7564 Nancy, France.
| | - Lavinia Balan
- IS2M, CNRS UMR 7361, 15 Rue Jean Starcky, 68093 Mulhouse, France.
| | | | - Myriam Ben Said
- Centre de Recherches et Technologies des Eaux (CERTE), Laboratoire Eaux Usées et Environnement, P.O. Box 273, Soliman, Tunis 8020, Tunisia.
| | - Ahmed Ghrabi
- Centre de Recherches et Technologies des Eaux (CERTE), Laboratoire Eaux Usées et Environnement, P.O. Box 273, Soliman, Tunis 8020, Tunisia.
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19
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Moussa H, Chouchene B, Gries T, Balan L, Mozet K, Medjahdi G, Schneider R. Growth of ZnO Nanorods on Graphitic Carbon Nitride gCN Sheets for the Preparation of Photocatalysts with High Visible‐Light Activity. ChemCatChem 2018. [DOI: 10.1002/cctc.201801206] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hatem Moussa
- Laboratoire Réactions et Génie des ProcédésUniversité de Lorraine, CNRS, LRGP F-54000 Nancy France
| | - Bilel Chouchene
- Laboratoire Réactions et Génie des ProcédésUniversité de Lorraine, CNRS, LRGP F-54000 Nancy France
- Institut Jean LamourUniversité de Lorraine, CNRS, IJL F-54000 Nancy France
| | - Thomas Gries
- Institut Jean LamourUniversité de Lorraine, CNRS, IJL F-54000 Nancy France
| | - Lavinia Balan
- Institut de Science des Matériaux de MulhouseCNRS, UMR 7361 15 rue Jean Starcky 68093 Mulhouse France
| | - Kevin Mozet
- Laboratoire Réactions et Génie des ProcédésUniversité de Lorraine, CNRS, LRGP F-54000 Nancy France
| | - Ghouti Medjahdi
- Institut Jean LamourUniversité de Lorraine, CNRS, IJL F-54000 Nancy France
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des ProcédésUniversité de Lorraine, CNRS, LRGP F-54000 Nancy France
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20
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Laatar F, Moussa H, Alem H, Balan L, Girot E, Medjahdi G, Ezzaouia H, Schneider R. CdSe nanorod/TiO 2 nanoparticle heterojunctions with enhanced solar- and visible-light photocatalytic activity. Beilstein J Nanotechnol 2017; 8:2741-2752. [PMID: 29354345 PMCID: PMC5753051 DOI: 10.3762/bjnano.8.273] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/27/2017] [Indexed: 05/15/2023]
Abstract
CdSe nanorods (NRs) with an average length of ≈120 nm were prepared by a solvothermal process and associated to TiO2 nanoparticles (Aeroxide® P25) by annealing at 300 °C for 1 h. The content of CdSe NRs in CdSe/TiO2 composites was varied from 0.5 to 5 wt %. The CdSe/TiO2 heterostructured materials were characterized by XRD, TEM, SEM, XPS, UV-visible spectroscopy and Raman spectroscopy. TEM images and XRD patterns show that CdSe NRs with wurtzite structure are associated to TiO2 particles. The UV-visible spectra demonstrate that the narrow bandgap of CdSe NRs serves to increase the photoresponse of CdSe/TiO2 composites until ≈725 nm. The CdSe (2 wt %)/TiO2 composite exhibits the highest photocatalytic activity for the degradation of rhodamine B in aqueous solution under simulated sunlight or visible light irradiation. The enhancement in photocatalytic activity likely originates from CdSe sensitization of TiO2 and the heterojunction between these materials which facilitates electron transfer from CdSe to TiO2. Due to its high stability (up to ten reuses without any significant loss in activity), the CdSe/TiO2 heterostructured catalysts show high potential for real water decontamination.
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Affiliation(s)
- Fakher Laatar
- Laboratory of Semiconductors, Nanostructures and Advanced Technology (LSNTA), Center for Research and Technology Energy, Tourist Route Soliman, BP 95, 2050 Hammam-Lif, Tunisia
- rue Grandville 54001 Nancy, France
| | - Hatem Moussa
- Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274 CNRS Université de Lorraine
| | - Halima Alem
- Institut Jean Lamour (IJL), UMR 7198 CNRS Université de Lorraine, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Emilien Girot
- Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274 CNRS Université de Lorraine
| | - Ghouti Medjahdi
- Institut Jean Lamour (IJL), UMR 7198 CNRS Université de Lorraine, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Hatem Ezzaouia
- Laboratory of Semiconductors, Nanostructures and Advanced Technology (LSNTA), Center for Research and Technology Energy, Tourist Route Soliman, BP 95, 2050 Hammam-Lif, Tunisia
- rue Grandville 54001 Nancy, France
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274 CNRS Université de Lorraine
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21
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Tatykayev B, Donat F, Alem H, Balan L, Medjahdi G, Uralbekov B, Schneider R. Synthesis of Core/Shell ZnO/rGO Nanoparticles by Calcination of ZIF-8/rGO Composites and Their Photocatalytic Activity. ACS Omega 2017; 2:4946-4954. [PMID: 31457773 PMCID: PMC6641885 DOI: 10.1021/acsomega.7b00673] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/11/2017] [Indexed: 05/29/2023]
Abstract
A facile two-step method was developed to prepare core/shell ZnO/rGO particles from ZIF-8/rGO composites. ZIF-8 particles were first grown at the surface of rGO sheets. Next, ZIF-8 particles were transformed into ZnO particles by thermal decomposition under air at 500 °C. All materials were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy, thermogravimetric analysis, and Brunauer-Emmett-Teller analyses. Results obtained show that ZIF-8 particles strongly associate with rGO sheets and that the calcination of this material produces porous core/shell ZnO/rGO particles with an average diameter of ca. 40 nm. The wt % of rGO associated with ZIF-8 particles was varied from 5 to 20%. The ZnO/rGO (10%) particles exhibit the highest photocatalytic activity for the degradation of the Orange II dye under simulated solar light irradiation of weak intensity (5 mW/cm2). This high photocatalytic activity was demonstrated to originate from superoxide O2 •- radicals due to the efficient trapping of photogenerated electrons in ZnO by rGO.
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Affiliation(s)
- Batukhan Tatykayev
- Al-Farabi
Kazakh National University, Al-Farabi Avenue, 71, 050040 Almaty, Kazakhstan
| | - Florian Donat
- Université
de Lorraine, Laboratoire Réactions et Génie des Procédés
(LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Halima Alem
- Institut
Jean Lamour (IJL), Université de Lorraine, CNRS, UMR 7198,
CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Lavinia Balan
- Institut
de Science des Matériaux de Mulhouse (IS2M), CNRS, UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Ghouti Medjahdi
- Institut
Jean Lamour (IJL), Université de Lorraine, CNRS, UMR 7198,
CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Bolat Uralbekov
- Al-Farabi
Kazakh National University, Al-Farabi Avenue, 71, 050040 Almaty, Kazakhstan
| | - Raphaël Schneider
- Université
de Lorraine, Laboratoire Réactions et Génie des Procédés
(LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
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22
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Dayou S, Vigolo B, Ghanbaja J, Medjahdi G, Ahmad Thirmizir MZ, Pauzi H, Mohamed AR. Direct Chemical Vapor Deposition Growth of Graphene Nanosheets on Supported Copper Oxide. Catal Letters 2017. [DOI: 10.1007/s10562-017-2125-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Donat F, Corbel S, Alem H, Pontvianne S, Balan L, Medjahdi G, Schneider R. ZnO nanoparticles sensitized by CuInZn x S 2+x quantum dots as highly efficient solar light driven photocatalysts. Beilstein J Nanotechnol 2017; 8:1080-1093. [PMID: 28685109 PMCID: PMC5480363 DOI: 10.3762/bjnano.8.110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 04/11/2017] [Indexed: 05/27/2023]
Abstract
Alloyed CuInZn x S2+x (ZCIS) quantum dots (QDs) were successfully associated to ZnO nanoparticles by a thermal treatment at 400 °C for 15 min. The ZnO/ZCIS composite was characterized by TEM, SEM, XRD, XPS and UV-vis absorption spectroscopy. ZCIS QDs, with an average diameter of ≈4.5 nm, were found to be homogeneously distributed at the surface of ZnO nanoparticles. ZCIS-sensitized ZnO nanoparticles exhibit a high photocatalytic activity under simulated solar light irradiation for the degradation of Orange II dye (>95% degradation after 180 min of irradiation at an intensity of 5 mW/cm2). The heterojunction built between the ZnO nanoparticle and ZCIS QDs not only extends the light adsorption range by the photocatalyst but also acts to decrease electron/hole recombination. Interestingly, the ZnO/ZCIS composite was found to produce increased amounts of H2O2 and singlet oxygen 1O2 compared to ZnO, suggesting that these reactive oxygen species play a key role in the photodegradation mechanism. The activity of the ZnO/ZCIS composite is retained at over 90% of its original value after ten successive photocatalytic runs, indicating its high stability and its potential for practical photocatalytic applications.
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Affiliation(s)
- Florian Donat
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville 54001 Nancy, France
| | - Serge Corbel
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville 54001 Nancy, France
| | - Halima Alem
- CNRS and Université de Lorraine, Institut Jean Lamour (IJL), UMR CNRS 7198, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Steve Pontvianne
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville 54001 Nancy, France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Ghouti Medjahdi
- CNRS and Université de Lorraine, Institut Jean Lamour (IJL), UMR CNRS 7198, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Raphaël Schneider
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville 54001 Nancy, France
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24
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Voss E, Vigolo B, Medjahdi G, Hérold C, Marêché JF, Ghanbaja J, Le Normand F, Mamane V. Covalent functionalization of polyhedral graphitic particles synthesized by arc discharge from graphite. Phys Chem Chem Phys 2017; 19:5405-5410. [DOI: 10.1039/c6cp08568g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Occurrence of covalent functionalization of astralenes by radical addition.
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Affiliation(s)
- E. Voss
- Institut Jean Lamour, CNRS-Université de Lorraine
- 54506 Vandœuvre-lès-Nancy
- France
| | - B. Vigolo
- Institut Jean Lamour, CNRS-Université de Lorraine
- 54506 Vandœuvre-lès-Nancy
- France
| | - G. Medjahdi
- Institut Jean Lamour, CNRS-Université de Lorraine
- 54506 Vandœuvre-lès-Nancy
- France
| | - C. Hérold
- Institut Jean Lamour, CNRS-Université de Lorraine
- 54506 Vandœuvre-lès-Nancy
- France
| | - J.-F. Marêché
- Institut Jean Lamour, CNRS-Université de Lorraine
- 54506 Vandœuvre-lès-Nancy
- France
| | - J. Ghanbaja
- Institut Jean Lamour, CNRS-Université de Lorraine
- 54506 Vandœuvre-lès-Nancy
- France
| | - F. Le Normand
- ICube – Equipe Matériaux pour Composants Electroniques et Photovoltaiques (MaCEPV) (ICube)
- CNRS-Université de Strasbourg
- UMR N 7357
- 67081 Strasbourg Cedex
- France
| | - V. Mamane
- Laboratoire SRSMC UMR CNRS 7565
- Université de Lorraine
- 54506 Vandoeuvre-les-Nancy
- France
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25
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Chouchene B, Ben Chaabane T, Balan L, Girot E, Mozet K, Medjahdi G, Schneider R. High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis. Beilstein J Nanotechnol 2016; 7:1338-1349. [PMID: 27826508 PMCID: PMC5082445 DOI: 10.3762/bjnano.7.125] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/03/2016] [Indexed: 05/24/2023]
Abstract
Ce-doped ZnO (ZnO:Ce) nanorods have been prepared through a solvothermal method and the effects of Ce-doping on the structural, optical and electronic properties of ZnO rods were studied. ZnO:Ce rods were characterized by XRD, SEM, TEM, XPS, BET, DRS and Raman spectroscopy. 5% Ce-doped ZnO rods with an average length of 130 nm and a diameter of 23 nm exhibit the highest photocatalytic activity for the degradation of the Orange II dye under solar light irradiation. The high photocatalytic activity is ascribed to the substantially enhanced light absorption in the visible region, to the high surface area of ZnO:Ce rods and to the effective electron-hole pair separation originating from Ce doping. The influence of various experimental parameters like the pH, the presence of salts and of organic compounds was investigated and no marked detrimental effect on the photocatalytic activity was observed. Finally, recyclability experiments demonstrate that ZnO:Ce rods are a stable solar-light photocatalyst.
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Affiliation(s)
- Bilel Chouchene
- Unité de Recherche Synthèse et Structure de Nanomatériaux UR 11 ES 30. Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisia
| | - Tahar Ben Chaabane
- Unité de Recherche Synthèse et Structure de Nanomatériaux UR 11 ES 30. Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisia
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS, UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Emilien Girot
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Kevin Mozet
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Ghouti Medjahdi
- Institut Jean Lamour (IJL), Université de Lorraine, CNRS, UMR 7198, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Raphaël Schneider
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
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26
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Moussa H, Merlin C, Dezanet C, Balan L, Medjahdi G, Ben-Attia M, Schneider R. Trace amounts of Cu²⁺ ions influence ROS production and cytotoxicity of ZnO quantum dots. J Hazard Mater 2016; 304:532-542. [PMID: 26619052 DOI: 10.1016/j.jhazmat.2015.11.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 11/08/2015] [Accepted: 11/09/2015] [Indexed: 06/05/2023]
Abstract
3-Aminopropyltrimethoxysilane (APTMS) was used as ligand to prepare ZnO@APTMS, Cu(2+)-doped ZnO (ZnO:Cu@APTMS) and ZnO quantum dots (QDs) with chemisorbed Cu(2+) ions at their surface (ZnO@APTMS/Cu). The dots have a diameter of ca. 5 nm and their crystalline and phase purities and composition were established by X-ray diffraction, transmission electron microscopy, UV-visible and fluorescence spectroscopies and by X-ray photoelectron spectroscopy. The effect of Cu(2+) location on the ability of the QDs to generate reactive oxygen species (ROS) under light irradiation was investigated. Results obtained demonstrate that all dots are able to produce ROS (OH, O2(-), H2O2 and (1)O2) and that ZnO@APTMS/Cu QDs generate more OH and O2(-) radicals and H2O2 than ZnO@APTMS and ZnO:Cu@APTMS QDs probably via mechanisms associating photo-induced charge carriers and Fenton reactions. In cytotoxicity experiments conducted in the dark or under light exposure, ZnO@APTMS/Cu QDs appeared slightly more deleterious to Escherichia coli cells than the two other QDs, therefore pointing out the importance of the presence of Cu(2+) ions at the periphery of the nanocrystals. On the other hand, with the lack of photo-induced toxicity, it can be inferred that ROS production cannot explain the cytotoxicity associated to the QDs. Our study demonstrates that both the production of ROS from ZnO QDs and their toxicity may be enhanced by chemisorbed Cu(2+) ions, which could be useful for medical or photocatalytic applications.
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Affiliation(s)
- Hatem Moussa
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville, 54001 Nancy, France; Laboratoire de Biosurveillance de l'Environnement, Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisia
| | - Christophe Merlin
- CNRS and Université de Lorraine, Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), CNRS UMR 7564, 15 Avenue du Charmois, 54500 Vandœuvre-lès-Nancy, France
| | - Clément Dezanet
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville, 54001 Nancy, France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M), CNRS UMR 7361, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Ghouti Medjahdi
- CNRS and Université de Lorraine, Institut Jean Lamour (IJL), UMR CNRS 7198, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Mossadok Ben-Attia
- Laboratoire de Biosurveillance de l'Environnement, Université de Carthage, Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisia
| | - Raphaël Schneider
- CNRS and Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), CNRS UMR 7274, 1 rue Grandville, 54001 Nancy, France.
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27
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Schejn A, Aboulaich A, Balan L, Falk V, Lalevée J, Medjahdi G, Aranda L, Mozet K, Schneider R. Cu2+-doped zeolitic imidazolate frameworks (ZIF-8): efficient and stable catalysts for cycloadditions and condensation reactions. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01505c] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Condensations and cycloadditions can be catalyzed by newly synthesized Cu-doped zeolitic imidazolate frameworks (ZIFs). The catalysts were well characterized and reusable.
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Affiliation(s)
- Aleksandra Schejn
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274, Université de Lorraine
- France
| | - Abdelhay Aboulaich
- Clermont Université
- Université Blaise Pascal
- Institut de Chimie de Clermont-Ferrand
- France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M)
- UMR 7361
- CNRS
- 68093 Mulhouse
- France
| | - Véronique Falk
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274, Université de Lorraine
- France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse (IS2M)
- UMR 7361
- CNRS
- 68093 Mulhouse
- France
| | - Ghouti Medjahdi
- Institut Jean Lamour (IJL)
- Université de Lorraine, CNRS
- UMR 7198, CNRS
- 54506 Vandoeuvre-lès-Nancy Cedex
- France
| | - Lionel Aranda
- Institut Jean Lamour (IJL)
- Université de Lorraine, CNRS
- UMR 7198, CNRS
- 54506 Vandoeuvre-lès-Nancy Cedex
- France
| | - Kevin Mozet
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274, Université de Lorraine
- France
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274, Université de Lorraine
- France
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28
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Schejn A, Mazet T, Falk V, Balan L, Aranda L, Medjahdi G, Schneider R. Fe3O4@ZIF-8: magnetically recoverable catalysts by loading Fe3O4 nanoparticles inside a zinc imidazolate framework. Dalton Trans 2015; 44:10136-40. [DOI: 10.1039/c5dt01191d] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Synthesis and characterization of Fe3O4 nanoparticles encapsulated in ZIF-8 crystals along with their catalytic properties and reusability are presented.
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Affiliation(s)
- Aleksandra Schejn
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274
- Université de Lorraine
- 54001 Nancy
- France
| | - Thomas Mazet
- Institut Jean Lamour (IJL)
- Université de Lorraine
- CNRS
- UMR 7198
- CNRS
| | - Véronique Falk
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274
- Université de Lorraine
- 54001 Nancy
- France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M)
- UMR 7361
- CNRS
- 68093 Mulhouse
- France
| | - Lionel Aranda
- Institut Jean Lamour (IJL)
- Université de Lorraine
- CNRS
- UMR 7198
- CNRS
| | - Ghouti Medjahdi
- Institut Jean Lamour (IJL)
- Université de Lorraine
- CNRS
- UMR 7198
- CNRS
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR CNRS 7274
- Université de Lorraine
- 54001 Nancy
- France
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Kolmykov O, Coulon J, Lalevée J, Alem H, Medjahdi G, Schneider R. Aqueous synthesis of highly luminescent glutathione-capped Mn²⁺-doped ZnS quantum dots. Mater Sci Eng C Mater Biol Appl 2014; 44:17-23. [PMID: 25280675 DOI: 10.1016/j.msec.2014.07.064] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 07/10/2014] [Accepted: 07/26/2014] [Indexed: 11/19/2022]
Abstract
In this paper, an aqueous-based route has been developed to prepare highly luminescent glutathione (GSH)-capped Mn-doped ZnS quantum dots (QDs). The dots obtained have an average diameter of 4.3 nm and exhibit the Mn(2+)-related orange luminescence with very low surface defect density. The highest photoluminescence was observed for a Mn(2+) to Zn(2+) molar ratio of 3%. Consecutive overcoating of the Mn:ZnS@GSH QDs by a ZnS shell was done, and the core/shell structured QDs exhibit a PL quantum yield of 23%. Transmission electron microscopy, X-ray powder diffraction, electron spin resonance, X-ray photoelectron spectroscopy, UV-visible spectroscopy and spectrofluorometry have been used to characterize the crystal structure, the doping status, and the optical properties of the doped-QDs. Our systematic investigation shows that Mn:ZnS/ZnS@GSH QDs are highly promising fluorescent labels in biological applications.
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Affiliation(s)
- Oleksii Kolmykov
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
| | - Joël Coulon
- Université de Lorraine, Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564, CNRS, Faculté de Pharmacie, 5 rue Albert Lebrun, 54000 Nancy, France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, CNRS, 15 rue Jean Starcky, 68093 Mulhouse, France
| | - Halima Alem
- Université de Lorraine, Institut Jean Lamour (IJL), UMR 7198, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Ghouti Medjahdi
- Université de Lorraine, Institut Jean Lamour (IJL), UMR 7198, CNRS, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
| | - Raphaël Schneider
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, CNRS, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France.
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30
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Schejn A, Balan L, Falk V, Aranda L, Medjahdi G, Schneider R. Controlling ZIF-8 nano- and microcrystal formation and reactivity through zinc salt variations. CrystEngComm 2014. [DOI: 10.1039/c3ce42485e] [Citation(s) in RCA: 247] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reactivity of the zinc(+2) salt allows tuning of the size and catalytic activity of ZIF-8 crystals.
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Affiliation(s)
- Aleksandra Schejn
- Université de Lorraine
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR 7274
- CNRS
- 54001 Nancy Cedex, France
| | - Lavinia Balan
- Institut de Science des Matériaux de Mulhouse (IS2M)
- UMR 7361
- 68093 Mulhouse, France
| | - Véronique Falk
- Université de Lorraine
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR 7274
- CNRS
- 54001 Nancy Cedex, France
| | - Lionel Aranda
- Université de Lorraine
- Institut Jean Lamour (IJL)
- UMR 7198
- CNRS
- , France
| | - Ghouti Medjahdi
- Université de Lorraine
- Institut Jean Lamour (IJL)
- UMR 7198
- CNRS
- , France
| | - Raphaël Schneider
- Université de Lorraine
- Laboratoire Réactions et Génie des Procédés (LRGP)
- UMR 7274
- CNRS
- 54001 Nancy Cedex, France
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31
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Aboulaich A, Tilmaciu CM, Merlin C, Mercier C, Guilloteau H, Medjahdi G, Schneider R. Physicochemical properties and cellular toxicity of (poly)aminoalkoxysilanes-functionalized ZnO quantum dots. Nanotechnology 2012; 23:335101. [PMID: 22865601 DOI: 10.1088/0957-4484/23/33/335101] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Luminescent ZnO nanocrystals were synthesized by basic hydrolysis of Zn(OAc)(2) in the presence of oleic acid and then functionalized with (poly)aminotrimethoxysilanes in the presence of tetramethylammonium hydroxide to render the QDs water-dispersible. The highest photoluminescence quantum yield (17%) was achieved using N(1)-(2-aminoethyl)-N(2)-[3-(trimethoxysilyl)propyl]-1,2-ethanediamine as surface ligand. Transmission electron microscopy and powder x-ray diffraction showed highly crystalline materials with a ZnO nanoparticle diameter of about 4 nm. The cytotoxicity of the different siloxane-capped ZnO QDs towards growing Escherichia coli bacterial cells was evaluated in MOPS-minimal medium. Although concentrations of 5 mM in QDs caused a complete growth arrest in E. coli, siloxane-capped ZnO QDs appeared weakly toxic at lower doses (0.5 or 1 mM). The concentration of bioavailable Zn (2+) ions leaked from ZnO QDs was evaluated using the biosensor bacteria Cupriavidus metallidurans AE1433. The results obtained clearly demonstrate that concentrations of bioavailable Zn(2+) are too low to explain the inhibitory effects of the ZnO QDs against bacteria cells at 1 mM and that the siloxane shell prevents ZnO QDs from dissolution contrary to uncapped ZnO nanoparticles. Because of their low cytotoxicity, good biocompatibility, low cost and large number of functional amine end groups, which makes them easy to tailor for end-user purposes, siloxane-capped ZnO QDs offer a high potential as fluorescent probes and as biosensors.
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Affiliation(s)
- Abdelhay Aboulaich
- Laboratoire Réactions et Génie des Procédés, UPR 3349, CNRS-Université de Lorraine, 1 rue Grandville, F-54001 Nancy Cedex, France
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32
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Geszke M, Murias M, Balan L, Medjahdi G, Korczynski J, Moritz M, Lulek J, Schneider R. Folic acid-conjugated core/shell ZnS:Mn/ZnS quantum dots as targeted probes for two photon fluorescence imaging of cancer cells. Acta Biomater 2011; 7:1327-38. [PMID: 20965282 DOI: 10.1016/j.actbio.2010.10.012] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 10/05/2010] [Accepted: 10/12/2010] [Indexed: 10/18/2022]
Abstract
This work presents a novel approach to producing water soluble manganese-doped core/shell ZnS/ZnS quantum dots (ZnS:Mn/ZnS). The Mn-doped ZnS core was prepared through a nucleation doping strategy and a ZnS shell was grown on ZnS:Mn d-dots by decomposition of Zn(2+)-3-mercaptopropionic acid (MPA) complexes at 100 °C. It was found that the Mn2+(4)T1→6A1 fluorescence emission at ∼590 nm significantly increased after growth of the shell when the Mn2+ doping content was 4.0 at.%. A photoluminescence quantum yield of ∼22% was obtained for core/shell nanocrystals. The nanoparticles were structurally and compositionally characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and dynamic light scattering. The surface MPA molecules favor the dispersion of ZnS:Mn/ZnS QDs in aqueous media and make possible conjugation with targeting folic acid molecules. The folate receptor-mediated delivery of folic acid-conjugated ZnS:Mn/ZnS QDs was demonstrated using confocal microscopy with biphotonic excitation. Bare and folate-conjugated QDs exhibit only weak cytotoxicity towards folate receptor-positive T47D cancer cells and MCF-7 cells, used as a reference, at high concentrations (mmolar range) after 72h incubation.
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33
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Aldeek F, Mustin C, Balan L, Medjahdi G, Roques-Carmes T, Arnoux P, Schneider R. Enhanced Photostability from CdSe(S)/ZnO Core/Shell Quantum Dots and Their Use in Biolabeling. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201000790] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Aboulaich A, Geszke M, Balan L, Ghanbaja J, Medjahdi G, Schneider R. Water-based route to colloidal Mn-doped ZnSe and core/shell ZnSe/ZnS quantum dots. Inorg Chem 2010; 49:10940-8. [PMID: 21049903 DOI: 10.1021/ic101302q] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Relatively monodisperse and highly luminescent Mn(2+)-doped zinc blende ZnSe nanocrystals were synthesized in aqueous solution at 100 °C using the nucleation-doping strategy. The effects of the experimental conditions and of the ligand on the synthesis of nanocrystals were investigated systematically. It was found that there were significant effects of molar ratio of precursors and heating time on the optical properties of ZnSe:Mn nanocrystals. Using 3-mercaptopropionic acid as capping ligand afforded 3.1 nm wide ZnSe:Mn quantum dots (QDs) with very low surface defect density and which exhibited the Mn(2+)-related orange luminescence. The post-preparative introduction of a ZnS shell at the surface of the Mn(2+)-doped ZnSe QDs improved their photoluminescence properties, resulting in stronger emission. A 2.5-fold increase in photoluminescence quantum yield (from 3.5 to 9%) and of Mn(2+) ion emission lifetime (from 0.62 to 1.39 ms) have been observed after surface passivation. The size and the structure of these QDs were also corroborated by using transmission electron microscopy, energy dispersive spectroscopy, and X-ray powder diffraction.
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Affiliation(s)
- Abdelhay Aboulaich
- Laboratoire Réactions et Génie des Procédés (LRGP), UPR 3349, Nancy-University, CNRS, 1 rue Grandville, 54001 Nancy Cedex, France
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Ruby C, Abdelmoula M, Aissa R, Medjahdi G, Brunelli M, François M. Aluminium substitution in iron(II–III)-layered double hydroxides: Formation and cationic order. J SOLID STATE CHEM 2008. [DOI: 10.1016/j.jssc.2008.05.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Hanna K, Kone T, Medjahdi G. Synthesis of the mixed oxides of iron and quartz and their catalytic activities for the Fenton-like oxidation. CATAL COMMUN 2008. [DOI: 10.1016/j.catcom.2007.09.035] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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37
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Medjahdi G, Sarazin D, Francois J. Theoretical approach to enhanced low-angle scattering from moderately concentrated polymer solutions. Macromolecules 2002. [DOI: 10.1021/ma00014a027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Reed WF, Ghosh S, Medjahdi G, Francois J. Dependence of polyelectrolyte apparent persistence lengths, viscosity, and diffusion on ionic strength and linear charge density. Macromolecules 2002. [DOI: 10.1021/ma00023a021] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Truong ND, Medjahdi G, Sarazin D, Fran�ois J. Effect of the carboxylate group distribution on potentiometric titration of acrylamide-acrylic acid copolymers. Polym Bull (Berl) 1990. [DOI: 10.1007/bf00298328] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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