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Falanga AP, Massaro M, Borbone N, Notarbartolo M, Piccialli G, Liotta LF, Sanchez-Espejo R, Viseras Iborra C, Raymo FM, Oliviero G, Riela S. Carrier capability of halloysite nanotubes for the intracellular delivery of antisense PNA targeting mRNA of neuroglobin gene. J Colloid Interface Sci 2024; 663:9-20. [PMID: 38387188 DOI: 10.1016/j.jcis.2024.02.136] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/28/2023] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Peptide nucleic acid (PNA) is a DNA mimic that shows good stability against nucleases and proteases, forming strongly recognized complementary strands of DNA and RNA. However, due to its feeble ability to cross the cellular membrane, PNA activity and its targeting gene action is limited. Halloysite nanotubes (HNTs) are a natural and low-cost aluminosilicate clay. Because of their peculiar ability to cross cellular membrane, HNTs represent a valuable candidate for delivering genetic materials into cells. Herein, two differently charged 12-mer PNAs capable of recognizing as molecular target a 12-mer DNA molecule mimicking a purine-rich tract of neuroglobin were synthetized and loaded onto HNTs by electrostatic attraction interactions. After characterization, the kinetic release was also assessed in media mimicking physiological conditions. Resonance light scattering measurements assessed their ability to bind complementary single-stranded DNA. Furthermore, their intracellular delivery was assessed by confocal laser scanning microscopy on living MCF-7 cells incubated with fluorescence isothiocyanate (FITC)-PNA and HNTs labeled with a probe. The nanomaterials were found to cross cellular membrane and cell nuclei efficiently. Finally, it is worth mentioning that the HNTs/PNA can reduce the level of neuroglobin gene expression, as shown by reverse transcription-quantitative polymerase chain reaction and western blotting analysis.
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Affiliation(s)
- Andrea P Falanga
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Monica Notarbartolo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, Palermo 90146, Italy
| | - Rita Sanchez-Espejo
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain
| | - Cesar Viseras Iborra
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain; Andalusian Institute of Earth Sciences, CSIC-UGR, 18100 Armilla, Granada, Spain
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables 33146-0431, FL, United States
| | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Via Sergio Pansini 5, 80131 Napoli, Italy
| | - Serena Riela
- Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy.
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2
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Torbina VV, Salaev MA, Paukshtis EA, Liotta LF, Vodyankina OV. Effect of Linker Substituent Nature on Performance of Active Sites in UiO-66: Combined FT-IR and DFT Study. Int J Mol Sci 2023; 24:14893. [PMID: 37834340 PMCID: PMC10573255 DOI: 10.3390/ijms241914893] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/01/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023] Open
Abstract
The nature of organic linker substituents plays an important role in gas sorption and separation as well as in catalytic applications of metal-organic frameworks. Zirconium-based UiO-66 is one of the most tunable members of this class of materials. However, the prediction of its properties is still not a fully solved problem. Here, the infrared spectroscopic measurements using highly sensitive CO probe molecules, combined with DFT calculations, are used in order to characterize the performance of different acidic sites caused by the presence of different organic linker substituents. The proposed model allowed differentiation between various active sites over the UiO-66 and clarification of their behavior. The experimental IR bands related to CO adsorption can be unambiguously assigned to one type of site or another. The previously undescribed highly red-shifted band is attributed to CO adsorbed on coordinatively unsaturated zirconium sites through an O atom. The results confirm the lower and higher Lewis's acidity of coordinatively unsaturated Zr sites on linker defects in the UiO-66 structure when electron-withdrawing and electron-donating groups are, respectively, included in a terephthalate moiety, whilst the Brønsted acidity of zirconium oxo-cluster remains almost unchanged.
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Affiliation(s)
- Viktoriia V. Torbina
- Laboratory of Catalytic Research, Tomsk State University, 36, Lenin Ave., 634050 Tomsk, Russia; (V.V.T.); (M.A.S.)
| | - Mikhail A. Salaev
- Laboratory of Catalytic Research, Tomsk State University, 36, Lenin Ave., 634050 Tomsk, Russia; (V.V.T.); (M.A.S.)
| | - Evgeniy A. Paukshtis
- Boreskov Institute of Catalysis, SB RAS, 5, Ak. Lavrentieva Ave., 630090 Novosibirsk, Russia;
| | - Leonarda F. Liotta
- Institute for the Study of Nanostructured Materials (ISMN), National Research Council (CNR), 90146 Palermo, Italy
| | - Olga V. Vodyankina
- Laboratory of Catalytic Research, Tomsk State University, 36, Lenin Ave., 634050 Tomsk, Russia; (V.V.T.); (M.A.S.)
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3
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Notarnicola B, Tassielli G, Renzulli PA, Di Capua R, Astuto F, Riela S, Nacci A, Casiello M, Testa ML, Liotta LF, Pastore C. Life Cycle Assessment of a system for the extraction and transformation of Waste Water Treatment Sludge (WWTS)-derived lipids into biodiesel. Sci Total Environ 2023; 883:163637. [PMID: 37098396 DOI: 10.1016/j.scitotenv.2023.163637] [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] [Received: 01/31/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 06/03/2023]
Abstract
In recent years, the demand for biofuels has been growing exponentially, as has the interest in biodiesel produced from organic matrices. Particularly interesting, due to its economic and environmental advantages, is the use of the lipids present in sewage sludge as a raw material for the synthesis of biodiesel. The possible processes of this biodiesel synthesis, starting from lipid matter, are represented by the conventional process with sulfuric acid, by the process with aluminium chloride hexahydrate and by processes that use solid catalysts such as those consisting of mixed metal oxides, functionalized halloysites, mesoporous perovskite and functionalized silicas. In literature there are numerous Life Cycle Assessment (LCA) studies concerning biodiesel production systems, but not many studies consider processes that start from sewage sludge and that use solid catalysts. In addition, no LCA studies were reported on solid acid catalysts nor on those based on mixed metal oxides which present some precious advantages, over the homogeneous analogous ones, such as higher recyclability, prevention of foams and corrosion phenomena, and an easier separation and purification of biodiesel product. This research work reports the results of a comparative LCA study applied to a system that uses a solvent free pilot plant for the extraction and transformation of lipids from sewage sludge via seven different scenarios that differ in the type of catalyst used. The biodiesel synthesis scenario using aluminium chloride hexahydrate as catalyst has the best environmental profile. Biodiesel synthesis scenarios using solid catalysts are worse due to higher methanol consumption which requires higher electricity consumption. The worst scenario is the one using functionalized halloysites. Further future developments of the research require the passage from the pilot scale to the industrial scale in order to obtain environmental results to be used for a more reliable comparison with the literature data.
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Affiliation(s)
- B Notarnicola
- Ionian Department of Law, Economics and Environment, University of Bari Aldo Moro, Taranto, Italy
| | - G Tassielli
- Ionian Department of Law, Economics and Environment, University of Bari Aldo Moro, Taranto, Italy
| | - P A Renzulli
- Ionian Department of Law, Economics and Environment, University of Bari Aldo Moro, Taranto, Italy
| | - R Di Capua
- Ionian Department of Law, Economics and Environment, University of Bari Aldo Moro, Taranto, Italy.
| | - F Astuto
- Ionian Department of Law, Economics and Environment, University of Bari Aldo Moro, Taranto, Italy
| | - S Riela
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), V.le delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - A Nacci
- Chemistry Department, University of Bari Aldo Moro, Bari, Italy
| | - M Casiello
- Chemistry Department, University of Bari Aldo Moro, Bari, Italy
| | - M L Testa
- CNR - Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Palermo, Italy
| | - L F Liotta
- CNR - Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Palermo, Italy
| | - C Pastore
- CNR - Istituto di Ricerca Sulle Acque (CNR-IRSA), Bari, Italy
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4
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Østergaard MB, Deganello F, La Parola V, Liotta LF, Boffa V, Jørgensen MK. Beneficial effect of cerium excess on in situ grown Sr 0.86Ce 0.14FeO 3-CeO 2 thermocatalysts for the degradation of bisphenol A. RSC Adv 2023; 13:21459-21470. [PMID: 37465574 PMCID: PMC10351217 DOI: 10.1039/d3ra03404f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023] Open
Abstract
Ce-doped SrFeO3 perovskite-type compounds are known as good thermocatalysts for the abatement of wastewater contaminants of emerging concern. In this work, Sr0.86Ce0.14FeO3-CeO2 perovskite-oxide systems with increasing amounts of cerium excess (0, 5, 10 and 15 mol% Ce), with respect to its maximum solubility in the perovskite, were prepared in one-pot by solution combustion synthesis and the effects of cerium excess on the chemical physical properties and thermocatalytic activity in the bisphenol A degradation were evaluated. The powders were characterized by powder X-ray diffraction combined with Rietveld refinement, X-ray photoelectron spectroscopy, thermal gravimetry, temperature programmed reduction, nitrogen adsorption, scanning electron microscopy and energy dispersive X-ray spectroscopy techniques. Results highlight that the perovskite structural, redox, surface, and morphological properties are affected by the in situ co-growth of the main perovskite phase and ceria and that a larger cerium excess has a beneficial effect on the thermocatalytic performance of the perovskite oxide-ceria biphasic system, although ceria is not active as a thermocatalyst itself. Perovskite properties and performance are enhanced by the tetragonal distortion induced by the introduction of cerium excess in the synthesis. It is supposed that a larger oxygen mobility and an easier reducibility are among the most relevant features that contribute to superior thermocatalytic properties of these perovskite oxide-based systems. These results also suggest new perspectives in the nanocomposite preparation and their catalytic applications.
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Affiliation(s)
- Martin B Østergaard
- Department of Chemistry and Bioscience, Center for Membrane Technology, Aalborg University Aalborg East 9220 Denmark
| | - Francesca Deganello
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche Via Ugo La Malfa 153 90146 Palermo Italy
| | - Valeria La Parola
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche Via Ugo La Malfa 153 90146 Palermo Italy
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche Via Ugo La Malfa 153 90146 Palermo Italy
| | - Vittorio Boffa
- Department of Chemistry and Bioscience, Center for Membrane Technology, Aalborg University Aalborg East 9220 Denmark
| | - Mads K Jørgensen
- Department of Chemistry and Bioscience, Center for Membrane Technology, Aalborg University Aalborg East 9220 Denmark
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5
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Massaro M, Licandro E, Cauteruccio S, Lazzara G, Liotta LF, Notarbartolo M, Raymo FM, Sánchez-Espejo R, Viseras-Iborra C, Riela S. Nanocarrier based on halloysite and fluorescent probe for intracellular delivery of peptide nucleic acids. J Colloid Interface Sci 2022; 620:221-233. [DOI: 10.1016/j.jcis.2022.03.151] [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] [Received: 02/09/2022] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 10/18/2022]
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Alfieri ML, Massaro M, d'Ischia M, D'Errico G, Gallucci N, Gruttadauria M, Licciardi M, Liotta LF, Nicotra G, Sfuncia G, Riela S. Site-specific halloysite functionalization by polydopamine: A new synthetic route for potential near infrared-activated delivery system. J Colloid Interface Sci 2022; 606:1779-1791. [PMID: 34507169 DOI: 10.1016/j.jcis.2021.08.155] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 06/17/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 12/14/2022]
Abstract
Halloysite nanotubes (HNTs) represent a versatile core structure for the design of functional nanosystems of biomedical interest. However, the development of selective methodologies for the site-controlled functionalization of the nanotubes at specific sites is not an easy task. This study aims to accomplish a procedure for the site-selective/specific, "pin-point", functionalization of HNTs with polydopamine (HNTs@PDA). This goal was achieved, at pH 6.5, by exploiting the basicity of ZnO nanoparticles anchored on the HNTs external surface (HNTs@ZnO) to induce a punctual polydopamine polymerization and coating. The morphology and the chemical composition of the nanomaterial was demonstrated by several techniques. Turbidimetric analysis showed that PDA coating affected the aqueous stability of HNTs@PDA compared to both HNTs@ZnO and HNTs. Notably, hyperthermia studies revealed that the nanomaterial induced a local thermic rise, up to 50 °C, under near-infrared (NIR) irradiation. Furthermore, secondary functionalization of HNTs@PDA by selective grafting of biotin onto the PDA coating followed by avidin binding was also accomplished.
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Affiliation(s)
- Maria Laura Alfieri
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cinthia 4, Napoli I-80126, Italy
| | - Marina Massaro
- Dipartimento Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Sez. Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, Palermo 90128, Italy
| | - Marco d'Ischia
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cinthia 4, Napoli I-80126, Italy.
| | - Gerardino D'Errico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cinthia 4, Napoli I-80126, Italy
| | - Noemi Gallucci
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cinthia 4, Napoli I-80126, Italy
| | - Michelangelo Gruttadauria
- Dipartimento Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Sez. Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, Palermo 90128, Italy
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), sez. Chimica e Tecnologie Farmaceutiche, Università degli Studi di Palermo, Via Archirafi, 32 90123, Italy
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, Palermo 90146, Italy
| | | | | | - Serena Riela
- Dipartimento Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Sez. Chimica, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, Palermo 90128, Italy.
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7
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García-López EI, Pomilla FR, Krivtsov I, Serrano A, Liotta LF, Villar-Rodil S, Paredes JI, Marcì G. Heteropolyacids supported on boron nitride and carbon nitride for catalytic and catalytic photo-assisted alcohol dehydration. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Massaro M, Campisciano V, Viseras Iborra C, Liotta LF, Sánchez-Polo M, Riela S, Gruttadauria M. New Mussel Inspired Polydopamine-Like Silica-Based Material for Dye Adsorption. Nanomaterials (Basel) 2020; 10:E1416. [PMID: 32698446 PMCID: PMC7408388 DOI: 10.3390/nano10071416] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/09/2020] [Accepted: 07/14/2020] [Indexed: 02/07/2023]
Abstract
A straightforward and economic procedure has been developed for the synthesis of a new polydopamine-like silica-based material that has been obtained by oxidation of catechol with KIO4 followed by reaction with 3-aminopropyltrimethoxysilane. All techniques adopted for characterization showed that the obtained material is rich in different functional groups and the morphological analyses revealed dimensions in the nanometric range. The hybrid material has been characterized by several techniques showing its polydopamine-like nature, and preliminary observations for dye adsorption have been reported.
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Affiliation(s)
- Marina Massaro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (M.M.); (V.C.)
| | - Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (M.M.); (V.C.)
| | - César Viseras Iborra
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 s/n Granada, Spain;
- Andalusian Institute of Earth Sciences, CSIC-UGR, Avenida de las Palmeras 4, 18100 Armilla, Granada, Spain
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, 90146 Palermo, Italy;
| | - Manuel Sánchez-Polo
- Department of Inorganic Chemistry, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain;
| | - Serena Riela
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (M.M.); (V.C.)
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; (M.M.); (V.C.)
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Calabrese C, Campisciano V, Siragusa F, Liotta LF, Aprile C, Gruttadauria M, Giacalone F. Front Cover Picture: SBA‐15/POSS‐Imidazolium Hybrid as Catalytic Nanoreactor: the role of the Support in the Stabilization of Palladium Species for C−C Cross Coupling Reactions. (Adv. Synth. Catal. 16/2019). Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Carla Calabrese
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles 5000 Namur Belgium
| | - Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Fabiana Siragusa
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR Via Ugo La Malfa 153 90146 Palermo Italy
| | - Carmela Aprile
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles 5000 Namur Belgium
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
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10
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Calabrese C, Campisciano V, Siragusa F, Liotta LF, Aprile C, Gruttadauria M, Giacalone F. SBA‐15/POSS‐Imidazolium Hybrid as Catalytic Nanoreactor: the role of the Support in the Stabilization of Palladium Species for C−C Cross Coupling Reactions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900350] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Carla Calabrese
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles 5000 Namur Belgium
| | - Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Fabiana Siragusa
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR Via Ugo La Malfa 153 90146 Palermo Italy
| | - Carmela Aprile
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles 5000 Namur Belgium
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
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11
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Deganello F, Joshi M, Liotta LF, La Parola V, Marcì G, Pantaleo G. Sustainable Recycling of Insoluble Rust Waste for the Synthesis of Iron-Containing Perovskite-Type Catalysts. ACS Omega 2019; 4:6994-7004. [PMID: 31459812 PMCID: PMC6647980 DOI: 10.1021/acsomega.8b03522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 01/30/2019] [Indexed: 05/07/2023]
Abstract
Insoluble rust waste from the scraping of rusted iron-containing materials represents a cheap, eco-friendly, and available source of iron. LaFeO3 perovskite-type powders were successfully prepared by solution combustion synthesis using rust waste from an electricity transmission tower manufacturer. Solution combustion synthesis enabled introduction of this insoluble iron precursor directly into the final product, bypassing complex extraction procedures. Catalytic activity in the propylene oxidation of the waste-derived LaFeO3 with stoichiometric Fe/La ratio was almost identical to the commercial iron nitrate-derived LaFeO3, thus demonstrating the viability of this recycling solution. The amount of waste iron precursor was varied and its effect on the powder properties was investigated. A lesser stoichiometric amount of precursor produced a LaFeO3-La2O3 binary system, whereas a higher stoichiometric amount led to a LaFeO3-Fe2O3 binary system. Catalytic activity of iron-rich compositions in the propylene oxidation was only slightly lower than the stoichiometric one, whereas iron-poor compositions were much less active. This eco-friendly methodology can be easily extended to other iron perovskites with different chemical compositions and to other iron-containing compounds.
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Affiliation(s)
- Francesca Deganello
- Istituto
per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, (CNR-ISMN), Via Ugo La Malfa 153, Palermo 90146, Italy
- E-mail: . Tel: +39 0916809387. Fax: +39 0916809399
| | - Manisha Joshi
- Department
of Chemistry, Priyadarshini College of Engineering
(PCE), Hingna Road, Nagpur 440019, India
| | - Leonarda F. Liotta
- Istituto
per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, (CNR-ISMN), Via Ugo La Malfa 153, Palermo 90146, Italy
| | - Valeria La Parola
- Istituto
per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, (CNR-ISMN), Via Ugo La Malfa 153, Palermo 90146, Italy
| | - Giuseppe Marcì
- Dipartimento
di Energia, Ingegneria dell’informazione e modelli Matematici
(DEIM), Università di Palermo, Viale delle Scienze, edificio no.
6, Palermo 90128, Italy
| | - Giuseppe Pantaleo
- Istituto
per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, (CNR-ISMN), Via Ugo La Malfa 153, Palermo 90146, Italy
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12
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Calabrese C, Liotta LF, Giacalone F, Gruttadauria M, Aprile C. Supported Polyhedral Oligomeric Silsesquioxane‐Based (POSS) Materials as Highly Active Organocatalysts for the Conversion of CO
2. ChemCatChem 2018. [DOI: 10.1002/cctc.201801351] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Carla Calabrese
- Department of Biological Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 Palermo 90128 Italy
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles Namur 5000 Belgium
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali NanostrutturatiISMN-CNR Via Ugo La Malfa 153 90146 Palermo Italy 5000 Namur Belgium
| | - Francesco Giacalone
- Department of Biological Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 Palermo 90128 Italy
| | - Michelangelo Gruttadauria
- Department of Biological Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 Palermo 90128 Italy
| | - Carmela Aprile
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles Namur 5000 Belgium
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13
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Massaro M, Colletti CG, Buscemi G, Cataldo S, Guernelli S, Lazzara G, Liotta LF, Parisi F, Pettignano A, Riela S. Palladium nanoparticles immobilized on halloysite nanotubes covered by a multilayer network for catalytic applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj02932f] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Halloysite nanotubes were functionalized with bis-vinyl imidazolium salts and PdNPs to obtain an efficient catalyst for fine chemical synthesis.
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Affiliation(s)
- Marina Massaro
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Carmelo G. Colletti
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Gabriella Buscemi
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Salvatore Cataldo
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Susanna Guernelli
- Dipartimento di Chimica “Giacomo Ciamician”
- University of Bologna
- 40126 Bologna
- Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR
- 90146 Palermo
- Italy
| | - Filippo Parisi
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Alberto Pettignano
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Serena Riela
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
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14
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Affiliation(s)
- Hazi A. Beejapur
- Institute for the Study of Nanostructured Materials (ISMN)-CNR; via Ugo La Malfa, 153 90146 Palermo Italy
| | - Valeria La Parola
- Institute for the Study of Nanostructured Materials (ISMN)-CNR; via Ugo La Malfa, 153 90146 Palermo Italy
| | - Leonarda F. Liotta
- Institute for the Study of Nanostructured Materials (ISMN)-CNR; via Ugo La Malfa, 153 90146 Palermo Italy
| | - Maria Luisa Testa
- Institute for the Study of Nanostructured Materials (ISMN)-CNR; via Ugo La Malfa, 153 90146 Palermo Italy
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15
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García‐López EI, Marcì G, Pomilla FR, Liotta LF, Megna B, Paganini MC, Gionco C, Giamello E, Palmisano L. Improved (Photo)catalytic Propene Hydration in a Gas/Solid System by Using Heteropolyacid/Oxide Composites: Electron Paramagnetic Resonance, Acidity, and Role of Water. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601396] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elisa I. García‐López
- “Schiavello‐Grillone” Photocatalysis Group Dipartimento di Energia, Ingegneria dell'informazione e modelli Matematici (DEIM) Università di Palermo Viale delle Scienze 90128 Palermo Italy
| | - Giuseppe Marcì
- “Schiavello‐Grillone” Photocatalysis Group Dipartimento di Energia, Ingegneria dell'informazione e modelli Matematici (DEIM) Università di Palermo Viale delle Scienze 90128 Palermo Italy
| | - Francesca R. Pomilla
- “Schiavello‐Grillone” Photocatalysis Group Dipartimento di Energia, Ingegneria dell'informazione e modelli Matematici (DEIM) Università di Palermo Viale delle Scienze 90128 Palermo Italy
| | - Leonarda F. Liotta
- Istituto per Lo Studio dei Materiali Nanostrutturati (ISMN)‐CNR via Ugo La Malfa 153 90146 Palermo Italy
| | - Bartolomeo Megna
- Dipartimento Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali Viale delle Scienze 90128 Palermo Italy
| | - Maria C. Paganini
- Dipartimento di Chimica Università di Torino via Giuria 7 10125 Torino Italy
| | - Chiara Gionco
- Dipartimento di Chimica Università di Torino via Giuria 7 10125 Torino Italy
| | - Elio Giamello
- Dipartimento di Chimica Università di Torino via Giuria 7 10125 Torino Italy
| | - Leonardo Palmisano
- “Schiavello‐Grillone” Photocatalysis Group Dipartimento di Energia, Ingegneria dell'informazione e modelli Matematici (DEIM) Università di Palermo Viale delle Scienze 90128 Palermo Italy
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16
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Calabrese C, Liotta LF, Carbonell E, Giacalone F, Gruttadauria M, Aprile C. Imidazolium-Functionalized Carbon Nanohorns for the Conversion of Carbon Dioxide: Unprecedented Increase of Catalytic Activity after Recycling. ChemSusChem 2017; 10:1202-1209. [PMID: 27897394 DOI: 10.1002/cssc.201601427] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 10/09/2016] [Revised: 11/13/2016] [Indexed: 06/06/2023]
Abstract
Six new hybrid materials composed of carbon nanohorns (CNHs) and highly cross-linked imidazolium salts were easily synthesized using a one-step procedure based on the radical oligomerization of bis-vinylimidazolium salts (bVImiX) in the presence of pristine CNHs. The hybrid materials were characterized and employed as the sole catalysts for the conversion of carbon dioxide into cyclic carbonate by reaction with epoxides. The solids displayed excellent turnover number and productivity. Moreover, four catalysts were investigated in recycling experiments. Two catalysts containing an octyl linker between the imidazolium units and a bromide or an iodide anion showed no loss in activity after three cycles. The other two catalysts containing a p-xylyl linker and a bromide anion and different CNHs/bVImiX ratios showed an unprecedented increase of activity after recycling.
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Affiliation(s)
- Carla Calabrese
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
- Laboratory of Applied Material Chemistry (CMA), University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati, ISMN-CNR via Ugo La Malfa 153, 90146, Palermo, Italy
| | - Esther Carbonell
- Laboratory of Applied Material Chemistry (CMA), University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Carmela Aprile
- Laboratory of Applied Material Chemistry (CMA), University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
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17
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Ouanji F, Nachid M, Kacimi M, Liotta LF, Puleo F, Ziyad M. Small scale biodiesel synthesis from waste frying oil and crude methanol in Morocco. Chin J Chem Eng 2016. [DOI: 10.1016/j.cjche.2016.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Salvo AMP, La Parola V, Liotta LF, Giacalone F, Gruttadauria M. Highly Loaded Multi-Walled Carbon Nanotubes Non-Covalently Modified with a Bis-Imidazolium Salt and their Use as Catalyst Supports. Chempluschem 2016; 81:471-476. [DOI: 10.1002/cplu.201600023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/04/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Anna Maria Pia Salvo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche; e Farmaceutiche (STEBICEF); Sezione di Chimica; Università di Palermo; Viale delle Scienze s/n, Ed. 17 90128 Palermo Italy
| | - Valeria La Parola
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR; Via Ugo La Malfa 153 90146 Palermo Italy
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR; Via Ugo La Malfa 153 90146 Palermo Italy
| | - Francesco Giacalone
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche; e Farmaceutiche (STEBICEF); Sezione di Chimica; Università di Palermo; Viale delle Scienze s/n, Ed. 17 90128 Palermo Italy
| | - Michelangelo Gruttadauria
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche; e Farmaceutiche (STEBICEF); Sezione di Chimica; Università di Palermo; Viale delle Scienze s/n, Ed. 17 90128 Palermo Italy
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19
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Campisciano V, La Parola V, Liotta LF, Giacalone F, Gruttadauria M. Fullerene-ionic-liquid conjugates: a new class of hybrid materials with unprecedented properties. Chemistry 2015; 21:3327-34. [PMID: 25589382 DOI: 10.1002/chem.201406067] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [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: 11/12/2014] [Indexed: 11/10/2022]
Abstract
A modular approach has been followed for the synthesis of a series of fullerene-ionic-liquid (IL) hybrids in which the number of IL moieties (two or twelve), anion, and cation have been varied. The combination of C60 and IL give rise to new unique properties in the conjugates such as solubility in water, which was higher than 800 mg mL(-1) in several cases. In addition, one of the C60 -IL hybrids has been employed for the immobilization of palladium nanoparticles through ion exchange followed by reduction with sodium borohydride. Surprisingly, during the reduction several carbon nanostructures were formed that comprised nano-onions and nanocages with few-layer graphene sidewalls, which have been characterized by means of thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy/energy-dispersive X-ray analysis (SEM-EDAX), and high-resolution transmission electron microscopy (HRTEM). Finally, the material thus obtained was successfully applied as catalyst in Suzuki and Mizoroki-Heck reactions in a concentration of just 0.2 mol %. In the former process it was recyclable for five runs with no loss in activity.
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Affiliation(s)
- Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Viale delle Scienze s/n, Ed. 17, 90128 Palermo (Italy)
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20
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Puleo F, Liotta LF, Parola VL, Banerjee D, Martorana A, Longo A. Palladium local structure of La1−xSrxCo1−yFey−0.03Pd0.03O3−δ perovskites synthesized using a one pot citrate method. Phys Chem Chem Phys 2014; 16:22677-86. [DOI: 10.1039/c4cp03214d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [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
Pd local environment in the LSCF perovskite phase.
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Affiliation(s)
- Fabrizio Puleo
- Dipartimento Fisica e Chimica
- Università di Palermo
- 90128 PALERMO, Italy
| | | | | | - Dipanjan Banerjee
- Dutch-Belgian Beamline (DUBBLE)
- ESRF-The European Synchrotron
- 38043 Grenoble Cedex 9, France
| | - Antonino Martorana
- Dipartimento Fisica e Chimica
- Università di Palermo
- 90128 PALERMO, Italy
- ISMN-CNR
- UOS Palermo
| | - Alessandro Longo
- ISMN-CNR
- UOS Palermo
- 90146 Palermo, Italy
- Netherlands Organization for Scientific Research (NWO)
- ESRF-The European Synchrotron
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21
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22
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Venezia AM, La Parola V, Liotta LF, Pantaleo G, Lualdi M, Boutonnet M, Järås S. Co/SiO2 catalysts for Fischer–Tropsch synthesis; effect of Co loading and support modification by TiO2. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.05.042] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Aprile C, Giacalone F, Agrigento P, Liotta LF, Martens JA, Pescarmona PP, Gruttadauria M. Multilayered supported ionic liquids as catalysts for chemical fixation of carbon dioxide: a high-throughput study in supercritical conditions. ChemSusChem 2011; 4:1830-1837. [PMID: 22110020 DOI: 10.1002/cssc.201100446] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 09/21/2011] [Indexed: 05/31/2023]
Abstract
Multilayered, covalently supported ionic liquid phase (mlc-SILP) materials were synthesized by using a new approach based on the grafting of bis-vinylimidazolium salts on different types of silica or polymeric supports. The obtained materials were characterized and tested as catalysts in the reaction of supercritical carbon dioxide with various epoxides to produce cyclic carbonates. The material prepared by supporting a bromide bis-imidazolium salt on the ordered mesoporous silica SBA-15 was identified as the most active catalyst for the synthesis of cyclic carbonates and displayed improved productivity compared with known supported ionic liquid catalysts. The catalyst retained its high activity upon reuse in consecutive catalytic runs. This is the first report of the application of mlc-SILP materials as catalysts in a reaction for the fixation of carbon dioxide. Rapid, parallel screening and comparison of the catalysts was performed by means of high-throughput experimentation.
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Affiliation(s)
- Carmela Aprile
- Centre for Surface Chemistry and Catalysis, KU Leuven, Heverlee, Belgium
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24
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Di Carlo G, Melaet G, Kruse N, Liotta LF, Pantaleo G, Venezia AM. Combined sulfating and non-sulfating support to prevent water and sulfur poisoning of Pd catalysts for methane combustion. Chem Commun (Camb) 2010; 46:6317-9. [DOI: 10.1039/c0cc00723d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Liotta LF, Gruttadauria M, Di Carlo G, Perrini G, Librando V. Heterogeneous catalytic degradation of phenolic substrates: catalysts activity. J Hazard Mater 2009; 162:588-606. [PMID: 18586389 DOI: 10.1016/j.jhazmat.2008.05.115] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2008] [Revised: 04/28/2008] [Accepted: 05/20/2008] [Indexed: 05/26/2023]
Abstract
This review article explored the catalytic degradation of phenol and some phenols derivates by means of advanced oxidation processes (AOPs). Among them, only the heterogeneous catalyzed processes based on catalytic wet peroxide oxidation, catalytic ozonation and catalytic wet oxidation were reviewed. Also selected recent examples about heterogeneous photocatalytic AOPs will be presented. In details, the present review contains: (i) data concerning catalytic wet peroxide oxidation of phenolic compounds over metal-exchanged zeolites, hydrotalcites, metal-exchanged clays and resins. (ii) Use of cobalt-based catalysts, hydrotalcite-like compounds, active carbons in the catalytic ozonation process. (iii) Activity of transition metal oxides, active carbons and supported noble metals catalysts in the catalytic wet oxidation of phenol and acetic acid. The most relevant results in terms of catalytic activity for each class of catalysts were reported.
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Affiliation(s)
- L F Liotta
- Istituto per Lo Studio dei Materiali Nanostrutturati (ISMN)-CNR via Ugo La Malfa, 153, 90146 Palermo, Italy.
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26
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Deganello G, Giannici F, Martorana A, Pantaleo G, Prestianni A, Balerna A, Liotta LF, Longo A. Metal−Support Interaction and Redox Behavior of Pt(1 wt %)/Ce0.6Zr0.4O2. J Phys Chem B 2006; 110:8731-9. [PMID: 16640429 DOI: 10.1021/jp057427i] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalyst Pt(1 wt %)/Ce(0.6)Zr(0.4)O(2) is studied by CO-temperature programmed reduction (CO-TPR), isothermal oxygen storage complete capacity (OSCC), X-ray absorption spectroscopy (XAS) at the Pt L(III) edge, and in situ X-ray diffraction (in situ XRD), with the aim of elucidating the role of supported metal in CO oxidation by ceria-based three-way catalysts (TWC). The redox behavior of Pt(1 wt %)/Ce(0.6)Zr(0.4)O(2) is compared to that of bare ceria-zirconia. OSCC of redox-aged Pt/ceria-zirconia is twice that of bare ceria-zirconia, and the maximum of CO consumption occurs at a temperature about 300 K lower than redox-aged ceria-zirconia. XAS analysis allows one to evidence the formation of a platinum-cerium alloy in redox-aged samples and the stability of the metal particles toward oxidation and sintering during high-temperature treatments. Under CO flux at 773 K, bare ceria-zirconia shows a continuous drift of diffraction peaks toward smaller Bragg angles, due to a progressive increase of Ce(III) content. Under the same treatment, the structural rearrangement of Pt-supported ceria-zirconia starts after an induction time and takes place with an abrupt change of the lattice constant. The experimental evidence points to the role of supported Pt in modifying the redox properties of ceria-zirconia with respect to the bare support. It is proposed that the much faster bulk reduction observed by in situ XRD for redox-aged Pt/ceria-zirconia can be attributed to an easier release of reacted CO(2), producing a more effective turnover of reactants at the catalyst surface.
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Affiliation(s)
- Giulio Deganello
- Dipartimento di Chimica Inorganica e Analitica "Stanislao Cannizzaro", Università di Palermo, viale delle Scienze, I-90128 Palermo, Italy
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27
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Dionigi C, Calestani G, Ferraroni T, Ruani G, Liotta LF, Migliori A, Nozar P, Palles D. Template evaporation method for controlling anatase nanocrystal size in ordered macroporous TiO2. J Colloid Interface Sci 2005; 290:201-7. [PMID: 15935368 DOI: 10.1016/j.jcis.2005.04.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2004] [Revised: 04/07/2005] [Accepted: 04/11/2005] [Indexed: 11/19/2022]
Abstract
The importance of pure-phase titanium oxide materials as catalysts, sensors, and photonic band-gap materials has been growing steadily. Recently, more attention has been focused on nanostructured titanium oxide showing controlled and periodic porosity on a nanometric scale. The nanocrystal size control of porous nanostructured titanium oxide in an anatase form is a crucial step for the organic template method. Simple template removal by evaporation in an inert atmosphere is reported in this article and compared with the calcination technique usually reported in the literature. The proposed method allows the formation of a double-porous (macro and meso) anatase phase. We demonstrate that it highly preserves the macropore order into a titanium oxide material and induces narrowly dispersed mesopores by controlling the nano-crystal size that is kept around 6 nm. For the proposed method, polystyrene beads are particularly suitable as templates, being evaporated in the temperature range of anatase existence. The final high surface area makes the materials appealing for applications as photocatalysts or sensors.
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Affiliation(s)
- Chiara Dionigi
- Istituto per lo Studio dei Materiali Nanostrutturati-Sezione di Bologna, Consiglio Nazionale delle Ricerche, via P. Gobetti, 101, I-40129 Bologna, Italy.
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28
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Longo A, Balerna A, d'Acapito F, D'Anca F, Giannici F, Liotta LF, Pantaleo G, Martorana A. A new cell for the study of in situ chemical reactions using X-ray absorption spectroscopy. J Synchrotron Radiat 2005; 12:499-505. [PMID: 15968129 DOI: 10.1107/s090904950501143x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2005] [Accepted: 04/12/2005] [Indexed: 05/03/2023]
Abstract
An in situ cell for reductive and oxidative treatments at different temperatures that allows the possibility of recording data as a function of temperature has been designed and constructed for X-ray absorption experiments at the GILDA beamline BM08 of ESRF. The cell is linked to a mass quadrupole spectrometer providing control of the reaction gases and monitoring of the products. The apparatus allows measurements to be performed both in transmission and fluorescence geometry. The cell was tested by studying the CO oxidation reaction promoted by a Pt/ceria-zirconia-supported catalyst. The CO(2) yield is correlated with the structural results confirming the existence of a strong metal-support interaction between the Pt metal clusters and the ceria-zirconia support.
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29
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Gruttadauria M, Liotta LF, Deganello G, Noto R. Chromium(VI) supported and entrapped on silica and zirconia as recyclable materials for oxidation of alcohols. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00756-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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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30
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Gruttadauria M, Liotta LF, Noto R, Deganello G. Sol-gel entrapped chromium(VI): a new selective, efficient and recyclable oxidizing system. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00975-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Gruttadauria M, Liotta LF, Noto R, Deganello G. Palladium on pumice: new catalysts for the stereoselective semihydrogenation of alkynes to (Z)-alkenes. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00065-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Gruttadauria M, Noto R, Deganello G, Liotta LF. Efficient semihydrogenation of the CC triple bond using palladium on pumice as catalyst. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00311-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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