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Abid M, Garcia R, Martinez-Escandell M, Fullana A, Silvestre-Albero J. Exceptional performance of Fe@carbon-rich nanoparticles prepared via hydrothermal carbonization of oil mill wastes for H 2S removal. Chemosphere 2024; 358:142140. [PMID: 38688348 DOI: 10.1016/j.chemosphere.2024.142140] [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: 01/09/2024] [Revised: 04/16/2024] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
Carbon-encapsulated iron oxide nanoparticles (CE-nFe) have been obtained from an industrial waste (oil mill wastewater-OMW, as a carbonaceous source), and using iron sulfate as metallic precursor. In an initial step, the hydrochar obtained has been thermally activated under an inert atmosphere at three different temperatures (600 °C, 800 °C and 1000 °C). The thermal treatment promotes the development of core-shell nanoparticles, with an inner core of α-Fe/Fe3O4, surrounded by a well-defined graphite shell. Temperatures above 800 °C are needed to promote the graphitization of the carbonaceous species, a process promoted by iron nanoparticles through the dissolution, diffusion and growth of the carbon nanostructures on the outer shell. Breakthrough column tests show that CE-nFe exhibit an exceptional performance for H2S removal with a breakthrough capacity larger than 0.5-0.6 g H2S/gcatalyst after 3 days experiment. Experimental results anticipate the crucial role of humidity and oxygen in the adsorption/catalytic performance. Compared to some commercial samples, these results constitute a three-fold increase in the catalytic performance under similar experimental conditions.
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Affiliation(s)
- M Abid
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Spain
| | - R Garcia
- Departamento de Ingeniería Química, Universidad de Alicante, Spain
| | - M Martinez-Escandell
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Spain
| | - A Fullana
- Departamento de Ingeniería Química, Universidad de Alicante, Spain
| | - J Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Spain.
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2
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Abreu-Jaureguí C, Andronic L, Sepúlveda-Escribano A, Silvestre-Albero J. Improved photocatalytic performance of TiO 2/carbon photocatalysts: Role of carbon additive. Environ Res 2024; 251:118672. [PMID: 38508360 DOI: 10.1016/j.envres.2024.118672] [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: 11/24/2023] [Revised: 02/26/2024] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
A series of TiO2 - based photocatalysts have been prepared by the incorporation of 10 wt% of various carbon-based nanomaterials as modifying agents to titania. More specifically, commercial TiO2 P25 was modified through a wet impregnation approach with methanol with four different carbon nanostructures: single-walled carbon nanotubes (SWCNTs), partially reduced graphene oxide (prGO), graphite (GI), and graphitic carbon nitride (gCN). Characterization results (XPS and Raman) anticipate the occurrence of important interfacial phenomena, preferentially for samples TiO2/SWCNT and TiO2/prGO, with a binding energy displacement in the Ti 2p contribution of 1.35 eV and 1.54 eV, respectively. These findings could be associated with an improved electron-hole mobility at the carbon/oxide interface. Importantly, these two samples constitute the most promising photocatalysts for Rhodamine B (RhB) photodegradation, with nearly 100% conversion in less than 2 h. These promising results must be associated with intrinsic physicochemical changes at the formed heterojunction structure and the potential dual-role of the composites able to adsorb and degrade RhB simultaneously. Cyclability tests confirm the improved performance of the composites (e.g., TiO2/SWCNT, 100% degradation in 1 h) due to the combined adsorption/degradation ability, although the regeneration after several cycles is not complete due to partial blocking of the inner cavities in the carbon nanotubes by non-reacted RhB. Under these reaction conditions, Rhodamine-B xanthene dye degrades via the de-ethylation route.
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Affiliation(s)
- C Abreu-Jaureguí
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica - Instituto Universitario de Materiales, Universidad de Alicante, Spain
| | - L Andronic
- Product Design, Mechatronics and Environment Department, Transilvania University of Brasov, Romania
| | - A Sepúlveda-Escribano
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica - Instituto Universitario de Materiales, Universidad de Alicante, Spain
| | - J Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica - Instituto Universitario de Materiales, Universidad de Alicante, Spain.
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Yankovych HB, Abreu-Jaureguí C, Farrando-Perez J, Melnyk I, Václavíková M, Silvestre-Albero J. Advanced Removal of Dyes with Tuning Carbon/TiO 2 Composite Properties. Nanomaterials (Basel) 2024; 14:309. [PMID: 38334580 PMCID: PMC10856939 DOI: 10.3390/nano14030309] [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: 12/17/2023] [Revised: 01/07/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
This study evaluates the removal of several dyes with different charge properties, i.e., anionic (Acid Red 88), cationic (Basic Red 13), and neutral (Basic Red 5) using transition metal-doped TiO2 supported on a high-surface-area activated carbon. Experimental results confirm the successful deposition of TiO2 and the derivatives (Zr-, Cu-, and Ce-doped samples) on the surface of the activated carbon material and the development of extended heterojunctions with improved electronic properties. Incorporating a small percentage of dopants significantly improves the adsorption properties of the composites towards the three dyes evaluated, preferentially for sample AC/TiO2_Zr. Similarly, the photodegradation efficiency highly depends on the nature of the composite evaluated and the characteristics of the dye. Sample AC/TiO2_Zr demonstrates the best overall removal efficiency for Acid Red 88 and Basic Red 5-83% and 63%, respectively. This promising performance must simultaneously be attributed to a dual mechanism, i.e., adsorption and photodegradation. Notably, the AC/TiO2_Ce outperformed the other catalysts in eliminating Basic Red 13 (74%/6 h). A possible Acid Red 88 degradation mechanism using AC/TiO2_Zr was proposed. This study shows that the removal efficiency of AC/TiO2 composites strongly depends on both the material and pollutant.
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Affiliation(s)
- Halyna Bodnar Yankovych
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (I.M.); (M.V.)
| | - Coset Abreu-Jaureguí
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain; (C.A.-J.); (J.F.-P.)
| | - Judit Farrando-Perez
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain; (C.A.-J.); (J.F.-P.)
| | - Inna Melnyk
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (I.M.); (M.V.)
| | - Miroslava Václavíková
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (I.M.); (M.V.)
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain; (C.A.-J.); (J.F.-P.)
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Cruz OF, Gómez IC, Rodríguez-Reinoso F, Silvestre-Albero J, Rambo CR, Martínez-Escandell M. Activated carbons with high micropore volume obtained from polyurethane foams for enhanced CO2 adsorption. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118671] [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: 04/03/2023]
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Gómez IC, Cruz OF, Silvestre-Albero J, Rambo CR, Escandell MM. Role of KCl in activation mechanisms of KOH-chemically activated high surface area carbons. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102258] [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: 11/06/2022]
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Farrando-Pérez J, Martinez-Navarrete G, Gandara-Loe J, Reljic S, Garcia-Ripoll A, Fernandez E, Silvestre-Albero J. Controlling the Adsorption and Release of Ocular Drugs in Metal–Organic Frameworks: Effect of Polar Functional Groups. Inorg Chem 2022; 61:18861-18872. [DOI: 10.1021/acs.inorgchem.2c02539] [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: 11/16/2022]
Affiliation(s)
- J. Farrando-Pérez
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
| | - G. Martinez-Navarrete
- Neuroprosthesis and Neuroengineering Research Group, Institute of Bioengineering, Miguel Hernández University, E-03202 Elche, Spain
| | - J. Gandara-Loe
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
| | - S. Reljic
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
| | - A. Garcia-Ripoll
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
| | - E. Fernandez
- Neuroprosthesis and Neuroengineering Research Group, Institute of Bioengineering, Miguel Hernández University, E-03202 Elche, Spain
| | - J. Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
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Ferreira ARO, Silvestre-Albero J, Maier ME, Ricardo NMPS, Cavalcante Jr CL, Luna FMT. Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil. Braz J Chem Eng 2022. [DOI: 10.1007/s43153-021-00204-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Genest A, Silvestre-Albero J, Li WQ, Rösch N, Rupprechter G. The origin of the particle-size-dependent selectivity in 1-butene isomerization and hydrogenation on Pd/Al 2O 3 catalysts. Nat Commun 2021; 12:6098. [PMID: 34671045 PMCID: PMC8528898 DOI: 10.1038/s41467-021-26411-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 10/01/2021] [Indexed: 11/29/2022] Open
Abstract
The selectivity of 1-butene hydrogenation/isomerization on Pd catalysts is known to be particle size dependent. Here we show that combining well-defined model catalysts, atmospheric pressure reaction kinetics, DFT calculations and microkinetic modeling enables to rationalize the particle size effect based on the abundance and the specific properties of the contributing surface facets.
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Affiliation(s)
- Alexander Genest
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC, A-1060, Vienna, Austria
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Singapore
| | - Joaquín Silvestre-Albero
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC, A-1060, Vienna, Austria
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, E-03690, San Vicente del Raspeig, Spain
| | - Wen-Qing Li
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Singapore
| | - Notker Rösch
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC, A-1060, Vienna, Austria
- Department Chemie and Catalysis Research Center, Technische Universität München, D-85747, Garching, Germany
| | - Günther Rupprechter
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC, A-1060, Vienna, Austria.
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9
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Soares OSGP, Jardim EO, Ramos-Fernandez EV, Villora-Picó JJ, Pastor-Blas MM, Silvestre-Albero J, Órfão JJM, Pereira MFR, Sepúlveda-Escribano A. Highly N 2-Selective Activated Carbon-Supported Pt-In Catalysts for the Reduction of Nitrites in Water. Front Chem 2021; 9:733881. [PMID: 34422775 PMCID: PMC8374164 DOI: 10.3389/fchem.2021.733881] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
The catalytic reduction of nitrites over Pt-In catalysts supported on activated carbon has been studied in a semi-batch reactor, at room temperature and atmospheric pressure, and using hydrogen as the reducing agent. The influence of the indium content on the activity and selectivity was evaluated. Monometallic Pt catalysts are very active for nitrite reduction, but the addition of up to 1 wt% of indium significantly increases the nitrogen selectivity from 0 to 96%. The decrease in the accessible noble metal surface area reduces the amount of hydrogen available at the catalyst surface, this favoring the combination of nitrogen-containing intermediate molecules to promote the formation of N2 instead of being deeply hydrogenated into NH4+. Several activated carbon-supported Pt-In catalysts, activated under different calcination and reduction temperatures, have been also evaluated in nitrite reduction. The catalyst calcined and reduced at 400°C showed the best performance considering both the activity and the selectivity to nitrogen. This enhanced selectivity is ascribed to the formation of Pt-In alloy. The electronic properties of Pt change upon alloy formation, as it is demonstrated by XPS.
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Affiliation(s)
- Olívia Salomé G P Soares
- Laboratório de Catálise e Materiais (LCM), Laboratório Associado LSRE-LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Erika O Jardim
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, Spain
| | - Enrique V Ramos-Fernandez
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, Spain
| | - Juan J Villora-Picó
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, Spain
| | - M Mercedes Pastor-Blas
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, Spain
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, Spain
| | - José J M Órfão
- Laboratório de Catálise e Materiais (LCM), Laboratório Associado LSRE-LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Manuel Fernando R Pereira
- Laboratório de Catálise e Materiais (LCM), Laboratório Associado LSRE-LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Antonio Sepúlveda-Escribano
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, Spain
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Nguyen HGT, Sims CM, Toman B, Horn J, van Zee RD, Thommes M, Ahmad R, Denayer JFM, Baron GV, Napolitano E, Bielewski M, Mangano E, Brandani S, Broom DP, Benham MJ, Dailly A, Dreisbach F, Edubilli S, Gumma S, Möllmer J, Lange M, Tian M, Mays TJ, Shigeoka T, Yamakita S, Hakuman M, Nakada Y, Nakai K, Hwang J, Pini R, Jiang H, Ebner AD, Nicholson MA, Ritter JA, Farrando-Pérez J, Cuadrado-Collados C, Silvestre-Albero J, Tampaxis C, Steriotis T, Řimnáčová D, Švábová M, Vorokhta M, Wang H, Bovens E, Heymans N, De Weireld G. A reference high-pressure CH4 adsorption isotherm for zeolite Y: results of an interlaboratory study. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00253-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThis paper reports the results of an international interlaboratory study led by the National Institute of Standards and Technology (NIST) on the measurement of high-pressure surface excess methane adsorption isotherms on NIST Reference Material RM 8850 (Zeolite Y), at 25 °C up to 7.5 MPa. Twenty laboratories participated in the study and contributed over one-hundred adsorption isotherms of methane on Zeolite Y. From these data, an empirical reference equation was determined, along with a 95% uncertainty interval (Uk=2). By requiring participants to replicate a high-pressure reference isotherm for carbon dioxide adsorption on NIST Reference Material RM 8852 (ZSM-5), this interlaboratory study also demonstrated the usefulness of reference isotherms in evaluating the performance of high-pressure adsorption experiments.
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Gandara-Loe J, Souza BE, Missyul A, Giraldo G, Tan JC, Silvestre-Albero J. MOF-Based Polymeric Nanocomposite Films as Potential Materials for Drug Delivery Devices in Ocular Therapeutics. ACS Appl Mater Interfaces 2020; 12:30189-30197. [PMID: 32530261 DOI: 10.1021/acsami.0c07517] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Novel MOF-based polymer nanocomposite films were successfully prepared using Zr-based UiO-67 as a metal-organic framework (MOF) and polyurethane (PU) as a polymeric matrix. Synchrotron X-ray powder diffraction (SXRPD) analysis confirms the improved stability of the UiO-67 embedded nanocrystals, and scanning electron microscopy images confirm their homogeneous distribution (average crystal size ∼100-200 nm) within the 50 μm thick film. Accessibility to the inner porous structure of the embedded MOFs was completely suppressed for N2 at cryogenic temperatures. However, ethylene adsorption measurements at 25 °C confirm that at least 45% of the MOF crystals are fully accessible for gas-phase adsorption of nonpolar molecules. Although this partial blockage limits the adsorption performance of the embedded MOFs for ocular drugs (e.g., brimonidine tartrate) compared to the pure MOF, an almost 60-fold improvement in the adsorption capacity was observed for the PU matrix after incorporation of the UiO-67 nanocrystals. The UiO-67@PU nanocomposite exhibits a prolonged release of brimonidine (up to 14 days were quantified). Finally, the combined use of SXRPD, thermogravimetric analysis (TGA), and Fourier transform infrared (FTIR) analyses confirmed the presence of the drug in the nanocomposite film, the stability of the MOF framework and the drug upon loading, and the presence of brimonidine in an amorphous phase once adsorbed. These results open the gate toward the application of these polymeric nanocomposite films for drug delivery in ocular therapeutics, either as a component of a contact lens, in the composition of lacrimal stoppers (e.g., punctal plugs), or in subtenon inserts.
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Affiliation(s)
- J Gandara-Loe
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
| | - B E Souza
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, U.K
| | - A Missyul
- CELLS-ALBA Synchrotron, E-08290 Cerdanyola del Vallés, Spain
| | - G Giraldo
- Clínica Clofan, Carrera 48 # 19 A 40, Medellín, Colombia
| | - J-C Tan
- Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, U.K
| | - J Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, E-03690 San Vicente del Raspeig, Spain
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Guan LZ, Patiño J, Cuadrado-Collados C, Tamayo A, Gutiérrez MC, Ferrer ML, Silvestre-Albero J, Del Monte F. Carbon-GO Composites with Preferential Water versus Ethanol Uptake. ACS Appl Mater Interfaces 2019; 11:24493-24503. [PMID: 31199609 DOI: 10.1021/acsami.9b02745] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The elimination of small amounts of water from alcohols is by no means a trivial issue in many practical applications like, for instance, the dehumidification of biocombustibles. The use of carbonaceous materials as sorbents has been far less explored than that of other materials because their hydrophobic character has typically limited their water uptake. Herein, we designed a synthetic process based on the use of eutectic mixtures that allowed the homogeneous dispersion of graphene oxide (GO) in the liquid containing the carbon precursor, e.g., furfuryl alcohol. Thus, after polymerization and a subsequent carbonization process, we were able to obtain porous carbon-GO composites where the combination of pore diameter and surface hydrophilicity provided a remarkable capacity for water uptake but extremely low methanol and ethanol uptake along the entire range of relative pressures evaluated in this work. Both the neat water uptake and the uptake difference between water and either methanol or ethanol of our carbon-GO composites were similar or eventually better than the uptake previously reported for other materials, also exhibiting preferential water-to-alcohol adsorption, e.g., porous coordination polymers, metal-organic frameworks, polyoxometalates, and covalent two-dimensional nanosheets embedded in a polymer matrix. Moreover, water versus alcohol uptake was particularly remarkable at low partial pressures in our carbon-GO composites.
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Affiliation(s)
| | | | - Carlos Cuadrado-Collados
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain
| | | | | | | | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain
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Gomes Ferreira de Paula F, Campello-Gómez I, Ortega PFR, Rodríguez-Reinoso F, Martínez-Escandell M, Silvestre-Albero J. Structural Flexibility in Activated Carbon Materials Prepared under Harsh Activation Conditions. Materials (Basel) 2019; 12:E1988. [PMID: 31226832 PMCID: PMC6632014 DOI: 10.3390/ma12121988] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 05/29/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 02/05/2023]
Abstract
Although traditionally high-surface area carbon materials have been considered as rigid structures with a disordered three dimensional (3D) network of graphite microdomains associated with a limited electrical conductivity (highly depending on the porous structure and surface chemistry), here we show for the first time that this is not the case for activated carbon materials prepared using harsh activation conditions (e.g., KOH activation). In these specific samples a clear structural re-orientation can be observed upon adsorption of different organic molecules, the structural changes giving rise to important changes in the electrical resistivity of the material. Whereas short chain hydrocarbons and their derivatives give rise to an increased resistivity, the contrary occurs for longer-chain hydrocarbons and/or alcohols. The high sensitivity of these high-surface area carbon materials towards these organic molecules opens the gate towards their application for sensing devices.
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Affiliation(s)
- Fabiano Gomes Ferreira de Paula
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690 San Vicente del Raspeig, Spain.
- Universidade Federal de Minas Gerais (UFMG), Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil.
| | - Ignacio Campello-Gómez
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690 San Vicente del Raspeig, Spain.
| | - Paulo Fernando Ribeiro Ortega
- Departamento de Química, Centro Federal de Educaçao Tecnológica de Minas Gerais, Av. Amazonas 5253, Nova Suíça, Belo Horizonte 30421-169, Brazil.
| | - Francisco Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690 San Vicente del Raspeig, Spain.
| | - Manuel Martínez-Escandell
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690 San Vicente del Raspeig, Spain.
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-IUMA, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690 San Vicente del Raspeig, Spain.
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14
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Connolly BM, Aragones-Anglada M, Gandara-Loe J, Danaf NA, Lamb DC, Mehta JP, Vulpe D, Wuttke S, Silvestre-Albero J, Moghadam PZ, Wheatley AEH, Fairen-Jimenez D. Tuning porosity in macroscopic monolithic metal-organic frameworks for exceptional natural gas storage. Nat Commun 2019; 10:2345. [PMID: 31138802 PMCID: PMC6538620 DOI: 10.1038/s41467-019-10185-1] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/15/2019] [Indexed: 12/23/2022] Open
Abstract
Widespread access to greener energy is required in order to mitigate the effects of climate change. A significant barrier to cleaner natural gas usage lies in the safety/efficiency limitations of storage technology. Despite highly porous metal-organic frameworks (MOFs) demonstrating record-breaking gas-storage capacities, their conventionally powdered morphology renders them non-viable. Traditional powder shaping utilising high pressure or chemical binders collapses porosity or creates low-density structures with reduced volumetric adsorption capacity. Here, we report the engineering of one of the most stable MOFs, Zr-UiO-66, without applying pressure or binders. The process yields centimetre-sized monoliths, displaying high microporosity and bulk density. We report the inclusion of variable, narrow mesopore volumes to the monoliths’ macrostructure and use this to optimise the pore-size distribution for gas uptake. The optimised mixed meso/microporous monoliths demonstrate Type II adsorption isotherms to achieve benchmark volumetric working capacities for methane and carbon dioxide. This represents a critical advance in the design of air-stable, conformed MOFs for commercial gas storage. While metal–organic frameworks exhibit record-breaking gas storage capacities, their typically powdered form hinders their industrial applicability. Here, the authors engineer UiO-66 into centimetre-sized monoliths with optimal pore-size distributions, achieving benchmark volumetric working capacities for both CH4 and CO2.
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Affiliation(s)
- B M Connolly
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Adsorption & Advanced Materials (AAM) Laboratory, Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Dr, Cambridge, CB3 0AS, UK
| | - M Aragones-Anglada
- Adsorption & Advanced Materials (AAM) Laboratory, Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Dr, Cambridge, CB3 0AS, UK
| | - J Gandara-Loe
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690, San Vicente del Raspeig, Spain
| | - N A Danaf
- Department of Chemistry, Center for NanoScience (CeNS), Nanosystems Initiative Munich, Center for Integrated Protein Science Munich, Ludwig-Maximilians-Univerität, München (LMU), Butenandtstrasse 11, 81377, Munich, Germany
| | - D C Lamb
- Department of Chemistry, Center for NanoScience (CeNS), Nanosystems Initiative Munich, Center for Integrated Protein Science Munich, Ludwig-Maximilians-Univerität, München (LMU), Butenandtstrasse 11, 81377, Munich, Germany
| | - J P Mehta
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Adsorption & Advanced Materials (AAM) Laboratory, Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Dr, Cambridge, CB3 0AS, UK
| | - D Vulpe
- Adsorption & Advanced Materials (AAM) Laboratory, Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Dr, Cambridge, CB3 0AS, UK
| | - S Wuttke
- Department of Chemistry, Center for NanoScience (CeNS), Nanosystems Initiative Munich, Center for Integrated Protein Science Munich, Ludwig-Maximilians-Univerität, München (LMU), Butenandtstrasse 11, 81377, Munich, Germany.,School of Chemistry, College of Science, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, UK
| | - J Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Ctra. San Vicente-Alicante s/n, E-03690, San Vicente del Raspeig, Spain
| | - P Z Moghadam
- Department of Chemical and Biological Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK
| | - A E H Wheatley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
| | - D Fairen-Jimenez
- Adsorption & Advanced Materials (AAM) Laboratory, Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Dr, Cambridge, CB3 0AS, UK.
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15
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Gandara-Loe J, Ortuño-Lizarán I, Fernández-Sanchez L, Alió JL, Cuenca N, Vega-Estrada A, Silvestre-Albero J. Metal-Organic Frameworks as Drug Delivery Platforms for Ocular Therapeutics. ACS Appl Mater Interfaces 2019; 11:1924-1931. [PMID: 30561189 DOI: 10.1021/acsami.8b20222] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Metal-organic frameworks (MOFs) have been evaluated as potential nanocarriers for intraocular incorporation of brimonidine tartrate to treat chronic glaucoma. Experimental results show that UiO-67 and MIL-100 (Fe) exhibit the highest loading capacity with values up to 50-60 wt %, whereas the performance is quite limited for MOFs with narrow cavities (below 0.8 nm, for example, UiO-66 and HKUST-1). The large loading capacity in UiO-67 is accompanied by an irreversible structural amorphization in aqueous and physiological media that promotes extended release kinetics above 12 days. Compared to the traditional drawbacks associated with the sudden release of the commercial drugs (e.g., ALPHAGAN), these results anticipate UiO-67 as a potential nanocarrier for drug delivery in intraocular therapeutics. These promising results are further supported by cytotoxicity tests using retinal photoreceptor cells (661W). Toxicity of these structures (including the metal nodes and organic ligands) for retinal cells is rather low for all samples evaluated, except for HKUST-1.
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Affiliation(s)
| | | | | | - Jorge L Alió
- Research and Development Department , VISSUM Corporation , E-03016 Alicante , Spain
| | | | - Alfredo Vega-Estrada
- Research and Development Department , VISSUM Corporation , E-03016 Alicante , Spain
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16
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Markova VK, Philbin JP, Zhao W, Genest A, Silvestre-Albero J, Rupprechter G, Rösch N. Catalytic Transformations of 1-Butene over Palladium. A Combined Experimental and Theoretical Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Velina K. Markova
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - John P. Philbin
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Weina Zhao
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Alexander Genest
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99 E-03080 Alicante, Spain
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9, 1060 Vienna, Austria
| | - Günther Rupprechter
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9, 1060 Vienna, Austria
| | - Notker Rösch
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
- Department Chemie and Catalysis Research Center, Technische Universität München, 85747 Garching, Germany
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17
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Jandosov J, Mikhalovska L, Howell C, Chenchik D, Kosher B, Lyubchik S, Silvestre-Albero J, Ablaikhanova N, Srailova G, Tuleukhanov S, Mikhalovsky S. Synthesis, Morphostructure, Surface Chemistry and Preclinical Studies of Nanoporous Rice Husk-Derived Biochars for Gastrointestinal Detoxification. Eurasian Chem Tech J 2017. [DOI: 10.18321/ectj678] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
This article summarizes the methodology of synthesis, surface functionalization and structural properties of rice husk-derived nanostructured carbon enterosorbents (biochars) in connection with the preliminary in vitro study results of uraemic toxin adsorption in model experiments, as well as preclinical trials in vivo. The obtained nanostructured carbon sorbents were studied using a number of modern physicochemical methods of investigation: low-temperature nitrogen adsorption, isotherms recording and calculation of the specific surface area, pore volumes were carried out using the Autosorb-1 "Quantachrome" device. Scanning electron microscopy and EDS-analysis. Mercury intrusion porosimetry analysis of the ACs were accomplished using "Quantachrome Poremaster" data analysis software. In vitro adsorption results assessed by use of HPLC and UV-spectroscopy for the nanostructured carbon sorbents with respect to the investigated low-molecule toxins suggest that the rice husks-derived carbon enterosorbents modified with the functional groups are able to reduce clinically significant levels of uraemic toxins and are comparable to the commercial enterosorbents. Based on the results of the comparative analysis for biocompatibility of canine kidney epithelial cells it was determined that the samples of the modified sorbents CRH-P-450 and CRH-475-KOH-850-N do not exhibit cytotoxicity in comparison with the commercial carbon enterosorbent «Adsorbix Extra». According to the results of the in vivo studies, it was determined that there was a positive effect of the enterosorbent CRH-P-450 on uremia and intoxication.
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18
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Gandara-Loe J, Jacobo-Azuara A, Silvestre-Albero J, Sepúlveda-Escribano A, Ramos-Fernández EV. Layered double hydroxides as base catalysts for the synthesis of dimethyl carbonate. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.04.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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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19
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Rojas-Mayorga CK, Mendoza-Castillo DI, Bonilla-Petriciolet A, Silvestre-Albero J. Tailoring the adsorption behavior of bone char for heavy metal removal from aqueous solution. ADSORPT SCI TECHNOL 2016. [DOI: 10.1177/0263617416658891] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- CK Rojas-Mayorga
- Laboratorio de Ingeniería y Tecnología del Agua, Instituto Tecnológico de Aguascalientes, Aguascalientes, México
| | - DI Mendoza-Castillo
- Laboratorio de Ingeniería y Tecnología del Agua, Instituto Tecnológico de Aguascalientes, Aguascalientes, Mexico; CONACYT, Cátedras Jóvenes Investigadores, México
| | - A Bonilla-Petriciolet
- Laboratorio de Ingeniería y Tecnología del Agua, Instituto Tecnológico de Aguascalientes, Aguascalientes, México
| | - J Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, Alicante, Spain
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20
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Casco ME, Jordá JL, Rey F, Fauth F, Martinez-Escandell M, Rodríguez-Reinoso F, Ramos-Fernández EV, Silvestre-Albero J. High-Performance of Gas Hydrates in Confined Nanospace for Reversible CH4
/CO2
Storage. Chemistry 2016; 22:10028-35. [DOI: 10.1002/chem.201600958] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Mirian E. Casco
- Laboratorio de Materiales Avanzados; Instituto Universitario de Materiales-, Departamento de Química Inorgánica; Universidad de Alicante; Ctra. San Vicente-Alicante s/n 03690 San Vicente del Raspeig Spain
| | - José L. Jordá
- Instituto de Tecnología Química; Universidad Politécnica de Valencia-CSIC; Avda. de los Naranjos s/n 46022 Valencia Spain
| | - Fernando Rey
- Instituto de Tecnología Química; Universidad Politécnica de Valencia-CSIC; Avda. de los Naranjos s/n 46022 Valencia Spain
| | - François Fauth
- ALBA Light Source; 08290 Cerdanyola del Vallés, Barcelona Spain
| | - Manuel Martinez-Escandell
- Laboratorio de Materiales Avanzados; Instituto Universitario de Materiales-, Departamento de Química Inorgánica; Universidad de Alicante; Ctra. San Vicente-Alicante s/n 03690 San Vicente del Raspeig Spain
| | - Francisco Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados; Instituto Universitario de Materiales-, Departamento de Química Inorgánica; Universidad de Alicante; Ctra. San Vicente-Alicante s/n 03690 San Vicente del Raspeig Spain
| | - Enrique V. Ramos-Fernández
- Laboratorio de Materiales Avanzados; Instituto Universitario de Materiales-, Departamento de Química Inorgánica; Universidad de Alicante; Ctra. San Vicente-Alicante s/n 03690 San Vicente del Raspeig Spain
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados; Instituto Universitario de Materiales-, Departamento de Química Inorgánica; Universidad de Alicante; Ctra. San Vicente-Alicante s/n 03690 San Vicente del Raspeig Spain
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21
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Casco ME, Rey F, Jordá JL, Rudić S, Fauth F, Martínez-Escandell M, Rodríguez-Reinoso F, Ramos-Fernández EV, Silvestre-Albero J. Paving the way for methane hydrate formation on metal-organic frameworks (MOFs). Chem Sci 2016; 7:3658-3666. [PMID: 29997857 PMCID: PMC6008709 DOI: 10.1039/c6sc00272b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 02/19/2016] [Indexed: 12/17/2022] Open
Abstract
The presence of a highly tunable porous structure and surface chemistry makes metal-organic framework (MOF) materials excellent candidates for artificial methane hydrate formation under mild temperature and pressure conditions (2 °C and 3-5 MPa). Experimental results using MOFs with a different pore structure and chemical nature (MIL-100 (Fe) and ZIF-8) clearly show that the water-framework interactions play a crucial role in defining the extent and nature of the gas hydrates formed. Whereas the hydrophobic MOF promotes methane hydrate formation with a high yield, the hydrophilic one does not. The formation of these methane hydrates on MOFs has been identified for the first time using inelastic neutron scattering (INS) and synchrotron X-ray powder diffraction (SXRPD). The results described in this work pave the way towards the design of new MOF structures able to promote artificial methane hydrate formation upon request (confined or non-confined) and under milder conditions than in nature.
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Affiliation(s)
- Mirian E Casco
- Laboratorio de Materiales Avanzados , Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain .
| | - Fernando Rey
- Instituto de Tecnología Química , Universidad Politécnica de Valencia-CSIC , Avda. de los Naranjos, s/n , E-46022 Valencia , Spain
| | - José L Jordá
- Instituto de Tecnología Química , Universidad Politécnica de Valencia-CSIC , Avda. de los Naranjos, s/n , E-46022 Valencia , Spain
| | - Svemir Rudić
- ISIS Facility , Rutherford Appleton Laboratory , Chilton , Didcot , UK OX11 0QX
| | - François Fauth
- ALBA Light Source , E-08290 Cerdanyola del Vallés , Barcelona , Spain
| | - Manuel Martínez-Escandell
- Laboratorio de Materiales Avanzados , Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain .
| | - Francisco Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados , Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain .
| | - Enrique V Ramos-Fernández
- Laboratorio de Materiales Avanzados , Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain .
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados , Departamento de Química Inorgánica-Instituto Universitario de Materiales , Universidad de Alicante , Ctra. San Vicente-Alicante s/n , E-03690 San Vicente del Raspeig , Spain .
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22
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Borchardt L, Nickel W, Casco M, Senkovska I, Bon V, Wallacher D, Grimm N, Krause S, Silvestre-Albero J. Illuminating solid gas storage in confined spaces – methane hydrate formation in porous model carbons. Phys Chem Chem Phys 2016; 18:20607-14. [DOI: 10.1039/c6cp03993f] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pore size of carbons is crucial for the formation of methane hydrate, its proper tuning improves adsorption capacity by 173%.
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Affiliation(s)
- Lars Borchardt
- Institute for Inorganic Chemistry
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Winfried Nickel
- Institute for Inorganic Chemistry
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Mirian Casco
- Laboratorio de Materiales Avanzados
- IUMA
- Universidad de Alicante
- Ctra. San Vicente del Raspeig-Alicante s/n
- Spain
| | - Irena Senkovska
- Institute for Inorganic Chemistry
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Volodymyr Bon
- Institute for Inorganic Chemistry
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Dirk Wallacher
- Department of Sample Environments
- Helmholtz-Zentrum Berlin für Materialien und Energie
- Germany
| | - Nico Grimm
- Department of Sample Environments
- Helmholtz-Zentrum Berlin für Materialien und Energie
- Germany
| | - Simon Krause
- Institute for Inorganic Chemistry
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados
- IUMA
- Universidad de Alicante
- Ctra. San Vicente del Raspeig-Alicante s/n
- Spain
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23
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Casco ME, Cheng YQ, Daemen LL, Fairen-Jimenez D, Ramos-Fernández EV, Ramirez-Cuesta AJ, Silvestre-Albero J. Gate-opening effect in ZIF-8: the first experimental proof using inelastic neutron scattering. Chem Commun (Camb) 2016; 52:3639-42. [DOI: 10.1039/c5cc10222g] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [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
Gate-opening effect. Inelastic neutron scattering experiments show that nitrogen exposure induces the swinging of the –CH3 groups and the imidazolate linkers in ZIF-8, this being the origin of the gate-opening effect.
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Affiliation(s)
- M. E. Casco
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- Spain
| | - Y. Q. Cheng
- Oak Ridge National Laboratory
- Chemical and Engineering Materials Division
- Oak Ridge
- USA
| | - L. L. Daemen
- Oak Ridge National Laboratory
- Chemical and Engineering Materials Division
- Oak Ridge
- USA
| | - D. Fairen-Jimenez
- Department of Chemical Engineering and Biotechnology
- University of Cambridge
- Cambridge CB2 3RA
- UK
| | - E. V. Ramos-Fernández
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- Spain
| | - A. J. Ramirez-Cuesta
- Oak Ridge National Laboratory
- Chemical and Engineering Materials Division
- Oak Ridge
- USA
| | - J. Silvestre-Albero
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- Spain
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24
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Reynel-Avila HE, Mendoza-Castillo DI, Bonilla-Petriciolet A, Silvestre-Albero J. Assessment of naproxen adsorption on bone char in aqueous solutions using batch and fixed-bed processes. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.05.013] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [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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25
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Nickel W, Oschatz M, Rico-Francés S, Klosz S, Biemelt T, Mondin G, Eychmüller A, Silvestre-Albero J, Kaskel S. Synthesis of Ordered Mesoporous Carbon Materials by Dry Etching. Chemistry 2015; 21:14753-7. [DOI: 10.1002/chem.201502038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 11/12/2022]
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26
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Erto A, Silvestre-Albero A, Silvestre-Albero J, Rodríguez-Reinoso F, Balsamo M, Lancia A, Montagnaro F. Carbon-supported ionic liquids as innovative adsorbents for CO2 separation from synthetic flue-gas. J Colloid Interface Sci 2015; 448:41-50. [DOI: 10.1016/j.jcis.2015.01.089] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 01/20/2015] [Accepted: 01/31/2015] [Indexed: 11/25/2022]
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27
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Linares N, Silvestre-Albero AM, Serrano E, Silvestre-Albero J, García-Martínez J. Mesoporous materials for clean energy technologies. Chem Soc Rev 2015; 43:7681-717. [PMID: 24699503 DOI: 10.1039/c3cs60435g] [Citation(s) in RCA: 214] [Impact Index Per Article: 23.8] [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
Alternative energy technologies are greatly hindered by significant limitations in materials science. From low activity to poor stability, and from mineral scarcity to high cost, the current materials are not able to cope with the significant challenges of clean energy technologies. However, recent advances in the preparation of nanomaterials, porous solids, and nanostructured solids are providing hope in the race for a better, cleaner energy production. The present contribution critically reviews the development and role of mesoporosity in a wide range of technologies, as this provides for critical improvements in accessibility, the dispersion of the active phase and a higher surface area. Relevant examples of the development of mesoporosity by a wide range of techniques are provided, including the preparation of hierarchical structures with pore systems in different scale ranges. Mesoporosity plays a significant role in catalysis, especially in the most challenging processes where bulky molecules, like those obtained from biomass or highly unreactive species, such as CO2 should be transformed into most valuable products. Furthermore, mesoporous materials also play a significant role as electrodes in fuel and solar cells and in thermoelectric devices, technologies which are benefiting from improved accessibility and a better dispersion of materials with controlled porosity.
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Affiliation(s)
- Noemi Linares
- Laboratorio de Nanotecnología Molecular, Departamento de Química Inorgánica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain.
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28
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Jardim EO, Rico-Francés S, Coloma F, Anderson JA, Silvestre-Albero J, Sepúlveda-Escribano A. Influence of the metal precursor on the catalytic behavior of Pt/Ceria catalysts in the preferential oxidation of CO in the presence of H2 (PROX). J Colloid Interface Sci 2015; 443:45-55. [DOI: 10.1016/j.jcis.2014.12.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 11/28/2014] [Accepted: 12/03/2014] [Indexed: 12/01/2022]
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Casco ME, Silvestre-Albero J, Ramírez-Cuesta AJ, Rey F, Jordá JL, Bansode A, Urakawa A, Peral I, Martínez-Escandell M, Kaneko K, Rodríguez-Reinoso F. Methane hydrate formation in confined nanospace can surpass nature. Nat Commun 2015; 6:6432. [DOI: 10.1038/ncomms7432] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 01/28/2015] [Indexed: 12/26/2022] Open
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Silva FD, Magalhães G, Jardim E, Silvestre-Albero J, Sepúlveda-Escribano A, de Azevedo D, de Lucena S. CO2 Adsorption on Ionic Liquid—Modified Cu-BTC: Experimental and Simulation Study. ADSORPT SCI TECHNOL 2015. [DOI: 10.1260/0263-6174.33.2.223] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- F.W.M. da Silva
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - G.M. Magalhães
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - E.O. Jardim
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain
| | - J. Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain
| | - A. Sepúlveda-Escribano
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain
| | - D.C.S. de Azevedo
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - S.M.P. de Lucena
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
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Casco ME, Fernández-Catalá J, Martínez-Escandell M, Rodríguez-Reinoso F, Ramos-Fernández EV, Silvestre-Albero J. Improved mechanical stability of HKUST-1 in confined nanospace. Chem Commun (Camb) 2015; 51:14191-4. [DOI: 10.1039/c5cc05107j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Confinement of HKUST-1 in the cavities of a specially designed activated carbon allows us to improve the mechanical stability of the hybrid system, MOF@AC, while preserving the excellent adsorption properties of the parent MOF.
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Affiliation(s)
- M. E. Casco
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - J. Fernández-Catalá
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - M. Martínez-Escandell
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - F. Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - E. V. Ramos-Fernández
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - J. Silvestre-Albero
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
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López-Salas N, Jardim EO, Silvestre-Albero A, Gutiérrez MC, Ferrer ML, Rodríguez-Reinoso F, Silvestre-Albero J, del Monte F. Use of eutectic mixtures for preparation of monolithic carbons with CO₂-adsorption and gas-separation capabilities. Langmuir 2014; 30:12220-12228. [PMID: 25255054 DOI: 10.1021/la5034146] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
With global warming becoming one of the main problems our society is facing nowadays, there is an urgent demand to develop materials suitable for CO2 storage as well as for gas separation. Within this context, hierarchical porous structures are of great interest for in-flow applications because of the desirable combination of an extensive internal reactive surface along narrow nanopores with facile molecular transport through broad "highways" leading to and from these pores. Deep eutectic solvents (DESs) have been recently used in the synthesis of carbon monoliths exhibiting a bicontinuous porous structure composed of continuous macroporous channels and a continuous carbon network that contains a certain microporosity and provides considerable surface area. In this work, we have prepared two DESs for the preparation of two hierarchical carbon monoliths with different compositions (e.g., either nitrogen-doped or not) and structure. It is worth noting that DESs played a capital role in the synthesis of hierarchical carbon monoliths not only promoting the spinodal decomposition that governs the formation of the bicontinuous porous structure but also providing the precursors required to tailor the composition and the molecular sieve structure of the resulting carbons. We have studied the performance of these two carbons for CO2, N2, and CH4 adsorption in both monolithic and powdered form. We have also studied the selective adsorption of CO2 versus CH4 in equilibrium and dynamic conditions. We found that these materials combined a high CO2-sorption capacity besides an excellent CO2/N2 and CO2/CH4 selectivity and, interestingly, this performance was preserved when processed in both monolithic and powdered form.
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Affiliation(s)
- N López-Salas
- Instituto de Ciencia de Materiales de Madrid-ICMM, Consejo Superior de Investigaciones Científicas-CSIC , Campus de Cantoblanco, 28049 Madrid, Spain
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33
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Balsamo M, Silvestre-Albero A, Silvestre-Albero J, Erto A, Rodríguez-Reinoso F, Lancia A. Assessment of CO₂ adsorption capacity on activated carbons by a combination of batch and dynamic tests. Langmuir 2014; 30:5840-5848. [PMID: 24784997 DOI: 10.1021/la500780h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, batch and dynamic adsorption tests are coupled for an accurate evaluation of CO2 adsorption performance of three different activated carbons (AC) obtained from olive stones by chemical activation followed by physical activation with CO2 at varying times (i.e., 20, 40, and 60 h). Kinetic and thermodynamic CO2 adsorption tests from simulated flue gas at different temperatures and CO2 pressures are carried out under both batch (a manometric equipment operating with pure CO2) and dynamic (a lab-scale fixed-bed column operating with a CO2/N2 mixture) conditions. The textural characterization of the AC samples shows a direct dependence of both micropore and ultramicropore volume on the activation time; hence, AC60 has the higher contribution. The adsorption tests conducted at 273 and 293 K showed that when CO2 pressure is lower than 0.3 bar, the lower the activation time, the higher CO2 adsorption capacity; a ranking of ω(eq)(AC20) > ω(eq)(AC40) > ω(eq)(AC60) can be exactly defined when T = 293 K. This result is likely ascribed to the narrower pore size distribution of the AC20 sample, whose smaller pores are more effective for CO2 capture at higher temperature and lower CO2 pressure, the latter representing operating conditions of major interest for decarbonation of flue gas effluent. Moreover, the experimental results obtained from dynamic tests confirm the results derived from the batch tests in terms of CO2 adsorption capacity. It is important to highlight the fact that the adsorption of N2 on the synthesized AC samples can be considered to be negligible. Finally, the importance of proper analysis for data characterization and adsorption experimental results is highlighted for the correct assessment of the CO2 removal performance of activated carbons at different CO2 pressures and operating temperatures.
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Affiliation(s)
- Marco Balsamo
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II , Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy
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Abdelouahab-Reddam Z, Wahby A, Mail RE, Silvestre-Albero J, Rodríguez-Reinoso F, Sepúlveda-Escribano A. Activated Carbons Impregnated with Na2S and H2SO4: Texture, Surface Chemistry and Application to Mercury Removal from Aqueous Solutions. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.2-3.101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Z. Abdelouahab-Reddam
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080, Alicante, Spain
- Equipe de Recherche Chimie de l'Eau et Pollution Atmosphérique, Département de Chimie, Faculté des Sciences, Université Abdelmalek Essaadi, Tétouan, Morocco
| | - A. Wahby
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080, Alicante, Spain
- Equipe de Recherche Chimie de l'Eau et Pollution Atmosphérique, Département de Chimie, Faculté des Sciences, Université Abdelmalek Essaadi, Tétouan, Morocco
| | - R. El Mail
- Equipe de Recherche Chimie de l'Eau et Pollution Atmosphérique, Département de Chimie, Faculté des Sciences, Université Abdelmalek Essaadi, Tétouan, Morocco
| | - J. Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080, Alicante, Spain
| | - F. Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080, Alicante, Spain
| | - A. Sepúlveda-Escribano
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, E-03080, Alicante, Spain
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35
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Casco ME, Morelos-Gómez A, Vega-Díaz SM, Cruz-Silva R, Tristán-López F, Muramatsu H, Hayashi T, Martínez-Escandell M, Terrones M, Endo M, Rodríguez-Reinoso F, Silvestre-Albero J. CO2 adsorption on crystalline graphitic nanostructures. J CO2 UTIL 2014. [DOI: 10.1016/j.jcou.2014.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Silvestre-Albero A, Grau-Atienza A, Serrano E, García-Martínez J, Silvestre-Albero J. Desilication of TS-1 zeolite for the oxidation of bulky molecules. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2013.08.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Oschatz M, Borchardt L, Rico-Francés S, Rodríguez-Reinoso F, Kaskel S, Silvestre-Albero J. Textural characterization of micro- and mesoporous carbons using combined gas adsorption and n-nonane preadsorption. Langmuir 2013; 29:8133-8139. [PMID: 23701426 DOI: 10.1021/la401206u] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Porous carbon and carbide materials with different structures were characterized using adsorption of nitrogen at 77.4 K before and after preadsorption of n-nonane. The selective blocking of the microporosity with n-nonane shows that ordered mesoporous silicon carbide material (OM-SiC) is almost exclusively mesoporous whereas the ordered mesoporous carbon CMK-3 contains a significant amount of micropores (~25%). The insertion of micropores into OM-SiC using selective extraction of silicon by hot chlorine gas leads to the formation of ordered mesoporous carbide-derived carbon (OM-CDC) with a hierarchical pore structure and significantly higher micropore volume as compared to CMK-3, whereas a CDC material from a nonporous precursor is exclusively microporous. Volumes of narrow micropores, calculated by adsorption of carbon dioxide at 273 K, are in linear correlation with the volumes blocked by n-nonane. Argon adsorption measurements at 87.3 K allow for precise and reliable calculation of the pore size distribution of the materials using density functional theory (DFT) methods.
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Affiliation(s)
- Martin Oschatz
- Department of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, D-01062 Dresden, Germany
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Briceño K, Silvestre-Albero J, Silvestre-Albero A, Calvo J, Montane D, García-Valls R, Hernández A, Rodríguez-Reinoso F. Characterization of Carbon Molecular Sieve Membranes Supported on Ceramic Tubes. ADSORPT SCI TECHNOL 2013. [DOI: 10.1260/0263-6174.31.2-3.233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- K. Briceño
- Department d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Paisos Catalans, 26, E-43007, Tarragona, Spain
| | - J. Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, E-03080 Alicante, Spain
| | - A. Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, E-03080 Alicante, Spain
| | - J.I. Calvo
- Departamento de Física Aplicada, Facultad Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
| | - D. Montane
- Catalonia Institute for Energy Research (IREC), Bioenergy and Biofuels Division, Building N5, C/Marcel·lí Domingo 2, E-43007, Tarragona, Spain
| | - R. García-Valls
- Department d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Paisos Catalans, 26, E-43007, Tarragona, Spain
| | - A. Hernández
- Departamento de Física Aplicada, Facultad Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
| | - F. Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, E-03080 Alicante, Spain
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Soares OSG, Jardim EO, Reyes-Carmona Á, Ruiz-Martínez J, Silvestre-Albero J, Rodríguez-Castellón E, Órfão JJ, Sepúlveda-Escribano A, Pereira MFR. Effect of support and pre-treatment conditions on Pt–Sn catalysts: Application to nitrate reduction in water. J Colloid Interface Sci 2012; 369:294-301. [DOI: 10.1016/j.jcis.2011.11.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 11/22/2011] [Accepted: 11/27/2011] [Indexed: 11/28/2022]
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Gonçalves M, Sánchez-García L, Oliveira Jardim ED, Silvestre-Albero J, Rodríguez-Reinoso F. Ammonia removal using activated carbons: effect of the surface chemistry in dry and moist conditions. Environ Sci Technol 2011; 45:10605-10610. [PMID: 22049916 DOI: 10.1021/es203093v] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The effect of surface chemistry (nature and amount of oxygen groups) in the removal of ammonia was studied using a modified resin-based activated carbon. NH(3) breakthrough column experiments show that the modification of the original activated carbon with nitric acid, that is, the incorporation of oxygen surface groups, highly improves the adsorption behavior at room temperature. Apparently, there is a linear relationship between the total adsorption capacity and the amount of the more acidic and less stable oxygen surface groups. Similar experiments using moist air clearly show that the effect of humidity highly depends on the surface chemistry of the carbon used. Moisture highly improves the adsorption behavior for samples with a low concentration of oxygen functionalities, probably due to the preferential adsorption of ammonia via dissolution into water. On the contrary, moisture exhibits a small effect on samples with a rich surface chemistry due to the preferential adsorption pathway via Brønsted and Lewis acid centers from the carbon surface. FTIR analyses of the exhausted oxidized samples confirm both the formation of NH(4)(+) species interacting with the Brønsted acid sites, together with the presence of NH(3) species coordinated, through the lone pair electron, to Lewis acid sites on the graphene layers.
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Affiliation(s)
- Maraisa Gonçalves
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
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Silvestre-Albero J, Sepúlveda-Escribano A. Guest editorial. ADSORPTION 2011. [DOI: 10.1007/s10450-011-9361-3] [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: 10/18/2022]
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42
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Silvestre-Albero J, Wahby A, Sepúlveda-Escribano A, Martínez-Escandell M, Kaneko K, Rodríguez-Reinoso F. Ultrahigh CO2 adsorption capacity on carbon molecular sieves at room temperature. Chem Commun (Camb) 2011; 47:6840-2. [DOI: 10.1039/c1cc11618e] [Citation(s) in RCA: 150] [Impact Index Per Article: 11.5] [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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Wahby A, Ramos-Fernández JM, Martínez-Escandell M, Sepúlveda-Escribano A, Silvestre-Albero J, Rodríguez-Reinoso F. High-surface-area carbon molecular sieves for selective CO(2) adsorption. ChemSusChem 2010; 3:974-981. [PMID: 20586092 DOI: 10.1002/cssc.201000083] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A series of carbon molecular sieves (CMSs) has been prepared, either as powders or monoliths, from petroleum pitch using potassium hydroxide as the activating agent. The CMS monoliths are prepared without the use of a binder based on the self-sintering ability of the mesophase pitch. Characterization results show that these CMSs combine a large apparent surface area (up to ca. 3100 m(2) g(-1)) together with a well-developed narrow microporosity (V(n) up to ca. 1.4 cm(3) g(-1)). The materials exhibit high adsorption capacities for CO(2) at 1 bar and 273 K (up to ca. 380 mg CO(2) g sorbent(-1)). To our knowledge, this is the best result obtained for CO(2) adsorption using carbon-based materials. Furthermore, although the CO(2) adsorption capacity for activated carbons has usually been considered lower than that of zeolites, the reported values exceed the total amount adsorbed on traditional 13X and 5A zeolites (ca. 230 mg and 180 mg CO(2) g sorbent(-1), respectively), under identical experimental conditions. Additionally, the narrow pore openings found in the CMS samples (ca. 0.4 nm) allows for the selective adsorption of CO(2) from molecules of similar dimensions (e.g., CH(4) and N(2)).
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Affiliation(s)
- Anass Wahby
- Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, Spain
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Vasanth Kumar K, de Castro MM, Martinez-Escandell M, Molina-Sabio M, Silvestre-Albero J, Rodriguez-Reinoso F. A continuous site energy distribution function from Redlich–Peterson isotherm for adsorption on heterogeneous surfaces. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.04.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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45
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López T, Figueras F, Manjarrez J, Bustos J, Alvarez M, Silvestre-Albero J, Rodríguez-Reinoso F, Martínez-Ferre A, Martínez E. Catalytic nanomedicine: A new field in antitumor treatment using supported platinum nanoparticles. In vitro DNA degradation and in vivo tests with C6 animal model on Wistar rats. Eur J Med Chem 2010; 45:1982-90. [PMID: 20153564 DOI: 10.1016/j.ejmech.2010.01.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2009] [Revised: 12/29/2009] [Accepted: 01/19/2010] [Indexed: 10/19/2022]
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Silvestre-Albero AM, Wahby A, Silvestre-Albero J, Rodríguez-Reinoso F, Betz W. Carbon Molecular Sieves Prepared from Polymeric Precursors: Porous Structure and Hydrogen Adsorption Properties. Ind Eng Chem Res 2009. [DOI: 10.1021/ie900091n] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana M Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain, and Supelco, 595 North Harrison Road, Bellefonte, Pennsylvania 16823
| | - Anass Wahby
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain, and Supelco, 595 North Harrison Road, Bellefonte, Pennsylvania 16823
| | - Joaquín Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain, and Supelco, 595 North Harrison Road, Bellefonte, Pennsylvania 16823
| | - Francisco Rodríguez-Reinoso
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain, and Supelco, 595 North Harrison Road, Bellefonte, Pennsylvania 16823
| | - William Betz
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain, and Supelco, 595 North Harrison Road, Bellefonte, Pennsylvania 16823
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Concepción P, Corma A, Silvestre-Albero J, Franco V, Chane-Ching JY. Chemoselective Hydrogenation Catalysts: Pt on Mesostructured CeO2 Nanoparticles Embedded within Ultrathin Layers of SiO2 Binder. J Am Chem Soc 2004; 126:5523-32. [PMID: 15113224 DOI: 10.1021/ja031768x] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pt on mesostructured CeO(2) nanoparticles embedded within ultrathin layers of highly structured SiO(2) binder shows highest activity reported with 80% selectivity for the chemoselective hydrogenation of crotonaldehyde. Characterization by transmission electron microscopy (TEM), CO adsorption, and X-ray photoelectron spectroscopy (XPS) show the presence of small Pt metal particles, preferentially located on CeO(2) (70%) together with the formation of Pt-CeO(2-x) sites at the interface between Pt and CeO(2) (4 nm) nanoparticles. These sites are able to polarize the carbonyl group and facilitate the selective hydrogenation of this with respect to the double bond.
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Affiliation(s)
- Patricia Concepción
- Instituto de Tecnología Química, UPV-CSIC, Universidad Politécnica de Valencia, Av. de los Naranjos s/n, 46022 Valencia, Spain
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Homs N, Llorca J, Ramírez de la Piscina P, Rodríguez-Reinoso F, Sepúlveda-Escribano A, Silvestre-Albero J. Vapour phase hydrogenation of crotonaldehyde over magnesia-supported platinum–tin catalysts. Phys Chem Chem Phys 2001. [DOI: 10.1039/b100770j] [Citation(s) in RCA: 40] [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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