1
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Bonn M. Concluding remarks for Faraday Discussion on Water at Interfaces. Faraday Discuss 2024; 249:521-525. [PMID: 38099817 PMCID: PMC10845007 DOI: 10.1039/d3fd00153a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 11/14/2023] [Indexed: 02/07/2024]
Abstract
Water at interfaces is a fascinating and multifaceted topic that has garnered significant attention in various scientific fields due to its relevance and implications. This Faraday Discussion explored the complexity of water at different interfaces. Many of the reports highlight the need for a molecular-level understanding. The Discussion was lively and constructive. In these summarizing remarks, I do not aim to be complete, but will rather try to sketch the status of the field, highlight the progress that we as a community have made, and present eclectic examples of where more work needs to be done.
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Affiliation(s)
- Mischa Bonn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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2
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Bushuev YG, Grosu Y, Chorążewski M, Meloni S. Effect of the Topology on Wetting and Drying of Hydrophobic Porous Materials. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30067-30079. [PMID: 35730678 PMCID: PMC9264313 DOI: 10.1021/acsami.2c06039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Establishing molecular mechanisms of wetting and drying of hydrophobic porous materials is a general problem for science and technology within the subcategories of the theory of liquids, chromatography, nanofluidics, energy storage, recuperation, and dissipation. In this article, we demonstrate a new way to tackle this problem by exploring the effect of the topology of pure silica nanoparticles, nanotubes, and zeolites. Using molecular dynamics simulations, we show how secondary porosity promotes the intrusion of water into micropores and affects the hydrophobicity of materials. It is demonstrated herein that for nano-objects, the hydrophobicity can be controlled by changing the ratio of open to closed nanometer-sized lateral pores. This effect can be exploited to produce new materials for practical applications when the hydrophobicity needs to be regulated without significantly changing the chemistry or structure of the materials. Based on these simulations and theoretical considerations, for pure silica zeolites, we examined and then classified the experimental database of intrusion pressures, thus leading to the prediction of any zeolite's intrusion pressure. We show a correlation between the intrusion pressure and the ratio of the accessible pore surface area to total pore volume. The correlation is valid for some zeolites and mesoporous materials. It can facilitate choosing prospective candidates for further investigation and possible exploitation, especially for energy storage, recuperation, and dissipation.
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Affiliation(s)
- Yuriy G. Bushuev
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9 street, 40-006 Katowice, Poland
| | - Yaroslav Grosu
- Centre
for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein
48, 01510 Vitoria-Gasteiz, Spain
| | - Mirosław
A. Chorążewski
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9 street, 40-006 Katowice, Poland
| | - Simone Meloni
- Dipartimento
di Scienze Chimiche, Farmaceutiche ed Agrarie
(DOCPAS), Università degli Studi di Ferrara (Unife), Via Luigi Borsari 46, I-44121 Ferrara, Italy
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3
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Foucaud Y, Dufrêche JF, Siboulet B, Duvail M, Jonchère A, Diat O, Vuilleumier R. Why local and non-local terms are essential for second harmonic generation simulation? Phys Chem Chem Phys 2022; 24:12961-12973. [PMID: 35580631 DOI: 10.1039/d1cp05437f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Second Harmonic Generation (SHG) today represents one of the most powerful techniques to selectively probe all types of interfaces. However, the origin of the SHG signal at a molecular level is still debated since the local dipole contribution, which is strongly correlated to the molecular orientation can be counterbalanced by non-local quadrupole contributions. Here, we propose a method to simulate the SHG signal of a model water/air interface from the molecular response of each contribution. This method includes both local and non-local terms, which are represented, respectively, by the dependency of the polarisability and hyperpolarisability upon the chemical environment of the molecule and by the bulk quadrupole response. The importance of both terms for the sound simulation of the SHG signals and their interpretation is assessed. We demonstrate that the sole dipole term is unable to simulate a SHG signal, even if the dependency of the hyperpolarisability on the local environment is considered. The inclusion of the bulk quadrupole contribution, which largely dominates the dipole contribution, is essential to predict the SHG response, although the accuracy of the prediction is increased when the dependency upon the local environment is considered.
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Affiliation(s)
- Yann Foucaud
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France.
| | | | | | - Magali Duvail
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France.
| | - Alban Jonchère
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France.
| | - Olivier Diat
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France.
| | - Rodolphe Vuilleumier
- PASTEUR, Département de Chimie, Ecole normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France.
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4
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Mollo-Varillas VR, Bougie F, Iliuta MC. Selective adsorption of water vapor in the presence of carbon dioxide on hydrophilic zeolites at high temperatures. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Confalonieri G, Vezzalini G, Quattrini F, Quartieri S, Dejoie C, Arletti R. Ce-exchange capacity of zeolite L in different cationic forms: a structural investigation. J Appl Crystallogr 2021. [DOI: 10.1107/s1600576721010827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Cerium exchange by microporous materials, such as zeolites, has important applications in different fields, for example, rare earth element recovery from waste or catalytic processes. This work investigated the Ce-exchange capacity of zeolite L in three different cationic forms (the as-synthesized K form and Na- and NH4-exchanged ones) from a highly concentrated solution. Chemical analyses and structural investigations allowed determination of the mechanisms involved in the exchanges and give new insights into the interactions occurring between the cations and the zeolite framework. Different cation sites are involved: (i) K present in the original LTL in the cancrinite cage (site KB) cannot be exchanged; (ii) the cations in KD (in the 12-membered ring channel) are always exchanged; while (iii) site KC (in the eight-membered ring channel) is involved only when K+ is substituted by NH4
+, thus promoting a higher exchange rate for NH4
+ → K+ than for Na+ → K+. In the Ce-exchanged samples, a new site occupied by Ce appears in the centre of the main channel, accompanied by an increase in the number of and a rearrangement of H2O molecules. In terms of Ce exchange, the three cationic forms behave similarly, from both the chemical and structural point of view (exchanged Ce ranges from 38 to 42% of the pristine cation amount). Beyond the intrinsic structural properties of the zeolite L framework, the Ce exchange seems thus also governed by the water coordination sphere of the cation. Complete Ce recovery from zeolite pores was achieved.
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6
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Mochizuki K. Absorption of mechanical energy via formation of ice nanotubes in zeolites. Phys Chem Chem Phys 2021; 23:20307-20312. [PMID: 34486614 DOI: 10.1039/d1cp01482j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations are carried out for a heterogeneous system composed of bulk water and pure-silica zeolites of the AFI type. My simulations show, for the first time, the spontaneous crystallization of water in hydrophobic zeolite channels by compression, while the water outside remains liquid. The formation of ice nanotubes results in a molecular bumper behavior in the absence of chemical reactions, although the mechanism has been explained by the appearance of silanol defects. In contrast, the same zeolite-water system exhibits a weak shock-absorber behavior at higher temperatures. My study shows that the phase transitions of confined water dramatically change its intrusion/extrusion behavior and alter the energetic performance by varying the temperature alone. The results offer a new perspective for a better design of hydrophobic nanoporous materials utilized with water.
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Affiliation(s)
- Kenji Mochizuki
- Department of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou, Zhejiang, 310028, P. R. China.
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7
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Randrianandraina J, Badawi M, Cardey B, Grivet M, Groetz JE, Ramseyer C, Anzola FT, Chambelland C, Ducret D. Adsorption of water in Na-LTA zeolites: an ab initio molecular dynamics investigation. Phys Chem Chem Phys 2021; 23:19032-19042. [PMID: 34612441 DOI: 10.1039/d1cp02624k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The very wide range of applications of LTA zeolites, including the storage of tritiated water, implies that a detailed and accurate atomic-scale description of the adsorption processes taking place in their structure is crucial. To unravel with an unprecedented accuracy the mechanisms behind the water filling in NaA, we have conducted a systematic ab initio molecular dynamics investigation. Two LTA structural models, the conventional Z4A and the reduced one ZK4, have been used for static and dynamic ab initio calculations, respectively. After assessing this reduced model with comparative static DFT calculations, we start the filling of the α and β cages by water, molecule by molecule. This allowed us to thoroughly study the interaction of water molecules with the zeolite structure and between water molecules, progressively forming H-bond chains and ring patterns as the cage is being filled. The adsorption energies could then be calculated with an unprecedented accuracy, which showed that the interaction of the molecules with the zeolite weakens as their number increases. By these methods, we have been able to highlight the primary role of Na+ cations in the interaction of water with zeolite, and inversely, the role of water in the displacement of cations when it is sufficiently solvated, allowing the passage between the α and β cages. This phenomenon is possible thanks to the inhomogeneous distribution of water molecules on the cationic sites, as shown by our AIMD simulations, which allows the formation of water clusters. These results are important because they help in understanding how the coverage of cationic sites by water will affect the adsorption of other molecules inside the Na-LTA zeolite.
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Affiliation(s)
- Joharimanitra Randrianandraina
- Laboratoire Chrono-Environnement UMR 6249, Université de Bourgogne Franche-Comté, 16 route de Gray, F-25030 Besançon Cedex, France.
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8
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Resasco DE, Crossley SP, Wang B, White JL. Interaction of water with zeolites: a review. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1948301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Daniel E. Resasco
- University of Oklahoma, School of Chemical, Biological, and Materials Engineering, Norman, OK, USA
| | - Steven P. Crossley
- University of Oklahoma, School of Chemical, Biological, and Materials Engineering, Norman, OK, USA
| | - Bin Wang
- University of Oklahoma, School of Chemical, Biological, and Materials Engineering, Norman, OK, USA
| | - Jeffery L. White
- Oklahoma State University, School of Chemical Engineering, Stillwater, OK, USA
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9
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Grifoni E, Piccini G, Lercher JA, Glezakou VA, Rousseau R, Parrinello M. Confinement effects and acid strength in zeolites. Nat Commun 2021; 12:2630. [PMID: 33976197 PMCID: PMC8113345 DOI: 10.1038/s41467-021-22936-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 03/30/2021] [Indexed: 02/03/2023] Open
Abstract
Chemical reactivity and sorption in zeolites are coupled to confinement and-to a lesser extent-to the acid strength of Brønsted acid sites (BAS). In presence of water the zeolite Brønsted acid sites eventually convert into hydronium ions. The gradual transition from zeolite Brønsted acid sites to hydronium ions in zeolites of varying pore size is examined by ab initio molecular dynamics combined with enhanced sampling based on Well-Tempered Metadynamics and a recently developed set of collective variables. While at low water content (1-2 water/BAS) the acidic protons prefer to be shared between zeolites and water, higher water contents (n > 2) invariably lead to solvation of the protons within a localized water cluster adjacent to the BAS. At low water loadings the standard free energy of the formed complexes is dominated by enthalpy and is associated with the acid strength of the BAS and the space around the site. Conversely, the entropy increases linearly with the concentration of waters in the pores, favors proton solvation and is independent of the pore size/shape.
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Affiliation(s)
- Emanuele Grifoni
- grid.5801.c0000 0001 2156 2780Department of Chemistry and Applied Biosciences, ETH Zurich, c/o USI Campus, Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.29078.340000 0001 2203 2861Institute of Computational Science, Università della Svizzera italiana (USI), Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.6093.cPresent Address: Scuola Normale Superiore, Piazza dei Cavalieri, Pisa, Italy
| | - GiovanniMaria Piccini
- grid.5801.c0000 0001 2156 2780Department of Chemistry and Applied Biosciences, ETH Zurich, c/o USI Campus, Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.29078.340000 0001 2203 2861Institute of Computational Science, Università della Svizzera italiana (USI), Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA
| | - Johannes A. Lercher
- grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA ,grid.6936.a0000000123222966Department Chemie and Catalysis Research Center, TU München, Lichtenbergstr. 4, Garching, Germany
| | - Vassiliki-Alexandra Glezakou
- grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA
| | - Roger Rousseau
- grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA
| | - Michele Parrinello
- grid.5801.c0000 0001 2156 2780Department of Chemistry and Applied Biosciences, ETH Zurich, c/o USI Campus, Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.29078.340000 0001 2203 2861Institute of Computational Science, Università della Svizzera italiana (USI), Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.25786.3e0000 0004 1764 2907Italian Institute of Technology, Via Morego 30, Genova, Italy
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10
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Kwon S, Kim C, Han E, Lee H, Cho HS, Choi M. Relationship between zeolite structure and capture capability for radioactive cesium and strontium. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124419. [PMID: 33162239 DOI: 10.1016/j.jhazmat.2020.124419] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Zeolites are widely used for capturing radioactive Cs+ and Sr2+, but the important structural factors determining their performance have not been clearly understood. To investigate the structure-property relationship, we prepared thirteen zeolites with various structures and Si/Al ratios. Ion-exchange experiments revealed that Cs+ exhibited an enhanced affinity to zeolites with high Si/Al ratios, which could be explained by the dielectric theory. Notably, zeolites containing 8-membered ring (8MR) showed extra-high Cs+ selectivity. Structural analysis using X-ray diffraction proved that Cs+ with an ionic diameter of 3.6 Å was selectively coordinated within 8MR having a cavity diameter of 3.6-4.1 Å. Such unique size-selective Cs+ coordination is analogous to ion complexation by macrocyclic organic ligands (e.g., crown ethers). Divalent Sr2+ showed decreasing affinity to zeolites as the Si/Al ratio increased, because of the increasing average Al-Al distance distribution. Sr2+ exchange exhibited an insignificant dependence on zeolite structures due to its strong hydration, which inhibited close interaction with zeolite frameworks. In terms of kinetics, Sr2+ exchange was significantly slower than Cs+ exchange because of the bulkiness of hydrated Sr2+ ions. Therefore, the micropore channels with large apertures (e.g., 12-membered ring) were beneficial for achieving fast ion-exchange kinetics, especially in the case of Sr2+.
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Affiliation(s)
- Songhyeon Kwon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Chaehoon Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Eunhye Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hoin Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hae Sung Cho
- School of Physical Science and Technology, ShanghaiTech, 393 Middle Huaxia Road, Shanghai 201210, China.
| | - Minkee Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
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11
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An isolated water droplet in the aqueous solution of a supramolecular tetrahedral cage. Proc Natl Acad Sci U S A 2020; 117:32954-32961. [PMID: 33318176 PMCID: PMC7777103 DOI: 10.1073/pnas.2012545117] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Water under nanoconfinement at ambient conditions has exhibited low-dimensional ice formation and liquid-solid phase transitions, but with structural and dynamical signatures that map onto known regions of water's phase diagram. Using terahertz (THz) absorption spectroscopy and ab initio molecular dynamics, we have investigated the ambient water confined in a supramolecular tetrahedral assembly, and determined that a dynamically distinct network of 9 ± 1 water molecules is present within the nanocavity of the host. The low-frequency absorption spectrum and theoretical analysis of the water in the Ga4L6 12- host demonstrate that the structure and dynamics of the encapsulated droplet is distinct from any known phase of water. A further inference is that the release of the highly unusual encapsulated water droplet creates a strong thermodynamic driver for the high-affinity binding of guests in aqueous solution for the Ga4L6 12- supramolecular construct.
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12
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Heard CJ, Grajciar L, Uhlík F, Shamzhy M, Opanasenko M, Čejka J, Nachtigall P. Zeolite (In)Stability under Aqueous or Steaming Conditions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003264. [PMID: 32780912 DOI: 10.1002/adma.202003264] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Zeolites are among the most environmentally friendly materials produced industrially at the Megaton scale. They find numerous commercial applications, particularly in catalysis, adsorption, and separation. Under ambient conditions aluminosilicate zeolites are stable when exposed to water or water vapor. However, at extreme conditions as high temperature, high water vapor pressure or increased acidity/basicity, their crystalline framework can be destroyed. The stability of the zeolite framework under aqueous conditions also depends on the concentration and character of heteroatoms (other than Al) and the topology of the zeolite. The factors critical for zeolite (in)stability in the presence of water under various conditions are reviewed from the experimental as well as computational sides. Nonreactive and reactive interactions of water with zeolites are addressed. The goal of this review is to provide a comparative overview of all-silica zeolites, aluminosilicates and zeolites with other heteroatoms (Ti, Sn, and Ge) when contacted with water. Due attention is also devoted to the situation when partial zeolite hydrolysis is used beneficially, such as the formation of hierarchical zeolites, synthesis of new zeolites or fine-tuning catalytic or adsorption characteristics of zeolites.
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Affiliation(s)
- Christopher James Heard
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Lukáš Grajciar
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Filip Uhlík
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Mariya Shamzhy
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Maksym Opanasenko
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
| | - Petr Nachtigall
- Department of Physical and Macromolecular Chemistry & Charles University Center of Advanced Materials, Faculty of Science, Charles University, Hlavova 8, Prague 2, Prague, 128 43, Czech Republic
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13
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Mouhat F, Coudert FX, Bocquet ML. Structure and chemistry of graphene oxide in liquid water from first principles. Nat Commun 2020; 11:1566. [PMID: 32218448 PMCID: PMC7099009 DOI: 10.1038/s41467-020-15381-y] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 03/04/2020] [Indexed: 12/03/2022] Open
Abstract
Graphene oxide is a rising star among 2D materials, yet its interaction with liquid water remains a fundamentally open question: experimental characterization at the atomic scale is difficult, and modeling by classical approaches cannot properly describe chemical reactivity. Here, we bridge the gap between simple computational models and complex experimental systems, by realistic first-principles molecular simulations of graphene oxide (GO) in liquid water. We construct chemically accurate GO models and study their behavior in water, showing that oxygen-bearing functional groups (hydroxyl and epoxides) are preferentially clustered on the graphene oxide layer. We demonstrated the specific properties of GO in water, an unusual combination of both hydrophilicity and fast water dynamics. Finally, we evidence that GO is chemically active in water, acquiring an average negative charge of the order of 10 mC m-2. The ab initio modeling highlights the uniqueness of GO structures for applications as innovative membranes for desalination and water purification.
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Affiliation(s)
- Félix Mouhat
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 Rue Lhomond 75005, Paris, France
| | - François-Xavier Coudert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
| | - Marie-Laure Bocquet
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 Rue Lhomond 75005, Paris, France.
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14
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Ahsan SAMS, Durani S, Reddy G, Subramanian Y. Shared hydrogen bonds: water in aluminated faujasite. Phys Chem Chem Phys 2020; 22:1632-1639. [PMID: 31894781 DOI: 10.1039/c9cp04972j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water confined in faujasite, a zeolite, with aluminium content, exhibits properties different from those of bulk water as well as water confined in siliceous faujasite. The RDF between oxygen of water (OW) and oxygen of aluminium (OAl) shows a prominent first peak near to 2.9 Å similar to any oxygen-oxygen RDF seen in bulk water and unlike water confined in siliceous faujasite. Further, HW-OAl shows a peak near 1.9 Å suggesting hydrogen bonding between hydrogen of water and OAl. The water satisfies the hydrogen bond criteria with both O1Al and O2Al indicating that it is participating in a shared hydrogen bond. The hydrogen bond exchange between such a water forming a shared hydrogen bond to OAl and another water molecule H2Ob is investigated through the changes in the distances and appropriate angles. The O-Al-O angle of the zeolite increases by about 7 degrees on the formation of the shared hydrogen bond. The jump dynamics of the shared hydrogen bond when the two bonds break simultaneously has been obtained and this is reported. This jump reorientation dynamics is different compared to normal hydrogen bonding reported by Laage and Hynes: it has a short lifetime, around 50-100 fs computed from SHB(t). The intermittent and continuous hydrogen bond correlation functions are also reported.
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Affiliation(s)
- S A M Shamimul Ahsan
- Atomic Mineral Directorate For Exploration & Research, Nagarbhavi, Bangalore-560072, India
| | - Smeer Durani
- Atomic Mineral Directorate For Exploration & Research, R. K. Puram, New Delhi-110066, India
| | - Govardhan Reddy
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India.
| | - Yashonath Subramanian
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India.
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15
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Giussani L, Tabacchi G, Coluccia S, Fois E. Confining a Protein-Containing Water Nanodroplet inside Silica Nanochannels. Int J Mol Sci 2019; 20:E2965. [PMID: 31216631 PMCID: PMC6627703 DOI: 10.3390/ijms20122965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/10/2019] [Accepted: 06/14/2019] [Indexed: 02/01/2023] Open
Abstract
Incorporation of biological systems in water nanodroplets has recently emerged as a new frontier to investigate structural changes of biomolecules, with perspective applications in ultra-fast drug delivery. We report on the molecular dynamics of the digestive protein Pepsin subjected to a double confinement. The double confinement stemmed from embedding the protein inside a water nanodroplet, which in turn was caged in a nanochannel mimicking the mesoporous silica SBA-15. The nano-bio-droplet, whose size fits with the pore diameter, behaved differently depending on the protonation state of the pore surface silanols. Neutral channel sections allowed for the droplet to flow, while deprotonated sections acted as anchoring piers for the droplet. Inside the droplet, the protein, not directly bonded to the surface, showed a behavior similar to that reported for bulk water solutions, indicating that double confinement should not alter its catalytic activity. Our results suggest that nanobiodroplets, recently fabricated in volatile environments, can be encapsulated and stored in mesoporous silicas.
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Affiliation(s)
- Lara Giussani
- Dipartimento di Scienza e Alta Tecnologia and INSTM udr Como, Insubria University, Via Valleggio 9, I-22100 Como, Italy.
| | - Gloria Tabacchi
- Dipartimento di Scienza e Alta Tecnologia and INSTM udr Como, Insubria University, Via Valleggio 9, I-22100 Como, Italy.
| | - Salvatore Coluccia
- Dipartimento di Chimica, Turin University, Via P. Giuria 7, I-10125 Turin, Italy.
| | - Ettore Fois
- Dipartimento di Scienza e Alta Tecnologia and INSTM udr Como, Insubria University, Via Valleggio 9, I-22100 Como, Italy.
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17
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Scalfi L, Fraux G, Boutin A, Coudert FX. Structure and Dynamics of Water Confined in Imogolite Nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6748-6756. [PMID: 29782170 DOI: 10.1021/acs.langmuir.8b01115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We have studied the properties of water adsorbed inside nanotubes of hydrophilic imogolite, an aluminum silicate clay mineral, by means of molecular simulations. We used a classical force field to describe the water and the flexible imogolite nanotube and validated it against the data obtained from first-principles molecular dynamics. With it, we observe a strong structuration of the water confined in the nanotube, with specific adsorption sites and a distribution of hydrogen bond patterns. The combination of number of adsorption sites, their geometry, and the preferential tetrahedral hydrogen bonding pattern of water leads to frustration and disorder. We further characterize the dynamics of the water, as well as the hydrogen bonds formed between water molecules and the nanotube, which is found to be more than 1 order of magnitude longer than water-water hydrogen bonds.
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Affiliation(s)
- Laura Scalfi
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Guillaume Fraux
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris , 75005 Paris , France
| | - Anne Boutin
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - François-Xavier Coudert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris , 75005 Paris , France
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Abstract
Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans have learnt pretty well how to make ordered empty nanocontainers, and to get useful products out of them. When such an order is imparted to molecules, new properties may appear, often yielding advanced applications. This review illustrates how the organized void space inherently present in various materials: zeolites, clathrates, mesoporous silica/organosilica, and metal organic frameworks (MOF), for example, can be exploited to create confined, organized, and self-assembled supramolecular structures of low dimensionality. Features of the confining matrices relevant to organization are presented with special focus on molecular-level aspects. Selected examples of confined supramolecular assemblies - from small molecules to quantum dots or luminescent species - are aimed to show the complexity and potential of this approach. Natural confinement (minerals) and hyperconfinement (high pressure) provide further opportunities to understand and master the atomistic-level interactions governing supramolecular organization under nanospace restrictions.
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Affiliation(s)
- Gloria Tabacchi
- Department of Science and High Technology, University of Insubria, Via Valleggio, 9 I-22100, Como, Italy
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Ghodhbene M, Bougie F, Fongarland P, Iliuta MC. Hydrophilic zeolite sorbents for In-situ water removal in high temperature processes. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22877] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marwa Ghodhbene
- Université Laval; Chemical Engineering Department; 1065 avenue de la Médecine, Québec QC, G1V 0A6 Canada
| | - Francis Bougie
- LGPC, Laboratoire de Génie des Procédés Catalytiques, CNRS, CPE Lyon; Université Claude-Bernard Lyon 1, 43 Boulevard du 11 novembre 1918; 69616 Villeurbanne France
| | - Pascal Fongarland
- LGPC, Laboratoire de Génie des Procédés Catalytiques, CNRS, CPE Lyon; Université Claude-Bernard Lyon 1, 43 Boulevard du 11 novembre 1918; 69616 Villeurbanne France
| | - Maria C. Iliuta
- Université Laval; Chemical Engineering Department; 1065 avenue de la Médecine, Québec QC, G1V 0A6 Canada
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21
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Arletti R, Fois E, Gigli L, Vezzalini G, Quartieri S, Tabacchi G. Irreversible Conversion of a Water-Ethanol Solution into an Organized Two-Dimensional Network of Alternating Supramolecular Units in a Hydrophobic Zeolite under Pressure. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610949] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rossella Arletti
- Dipartimento di Scienze della Terra; Università di Torino; Via Valperga Caluso 35 Torino Italy
| | - Ettore Fois
- Dipartimento di Scienza ed Alta Tecnologia; Università dell'Insubria and INSTM; Via Valleggio 9 22100 Como Italy
| | - Lara Gigli
- Elettra Sincrotrone Trieste; Strada Statale 14 34149 Basovizza, Trieste Italy
| | - Giovanna Vezzalini
- Dipartimento di Scienze Chimiche e Geologiche; Università di Modena e Reggio Emilia; Via Campi 103 41125 Modena Italy
| | - Simona Quartieri
- Dipartimento di Scienze Matematiche e Informatiche; Scienze Fisiche e Scienze della Terra; Università di Messina; Viale F. Stagno D'Alcontres 31 98166 Messina S. Agata Italy
| | - Gloria Tabacchi
- Dipartimento di Scienza ed Alta Tecnologia; Università dell'Insubria and INSTM; Via Valleggio 9 22100 Como Italy
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22
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Arletti R, Fois E, Gigli L, Vezzalini G, Quartieri S, Tabacchi G. Irreversible Conversion of a Water-Ethanol Solution into an Organized Two-Dimensional Network of Alternating Supramolecular Units in a Hydrophobic Zeolite under Pressure. Angew Chem Int Ed Engl 2017; 56:2105-2109. [PMID: 28067444 DOI: 10.1002/anie.201610949] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Indexed: 12/22/2022]
Abstract
Turning disorder into organization is a key issue in science. By making use of X-ray powder diffraction and modeling studies, we show herein that high pressures in combination with the shape and space constraints of the hydrophobic all-silica zeolite ferrierite separate an ethanol-water liquid mixture into ethanol dimer wires and water tetramer squares. The confined supramolecular blocks alternate in a binary two-dimensional (2D) architecture that remains stable upon complete pressure release. These results support the combined use of high pressures and porous networks as a viable strategy for driving the organization of molecules or nano-objects towards complex, pre-defined patterns relevant for the realization of novel functional nanocomposites.
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Affiliation(s)
- Rossella Arletti
- Dipartimento di Scienze della Terra, Università di Torino, Via Valperga Caluso 35, Torino, Italy
| | - Ettore Fois
- Dipartimento di Scienza ed Alta Tecnologia, Università dell'Insubria and INSTM, Via Valleggio 9, 22100, Como, Italy
| | - Lara Gigli
- Elettra Sincrotrone Trieste, Strada Statale 14, 34149, Basovizza, Trieste, Italy
| | - Giovanna Vezzalini
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via Campi 103, 41125, Modena, Italy
| | - Simona Quartieri
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università di Messina, Viale F. Stagno D'Alcontres 31, 98166, Messina S. Agata, Italy
| | - Gloria Tabacchi
- Dipartimento di Scienza ed Alta Tecnologia, Università dell'Insubria and INSTM, Via Valleggio 9, 22100, Como, Italy
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Tadokoro M, Suda T, Shouji T, Ohno K, Honda K, Takeuchi A, Yoshizawa M, Isoda K, Kamebuchi H, Matsui H. Transpiration of Water Molecules through Molecule-Based Porous Crystals with One-Dimensional Nanochannels. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Makoto Tadokoro
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Takahiro Suda
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Taishi Shouji
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Kazuhiro Ohno
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Kohei Honda
- Department of Physics, Graduate School of Science, Tohoku University
| | - Asuka Takeuchi
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Makoto Yoshizawa
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Kyosuke Isoda
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Hajime Kamebuchi
- Department of Chemistry, Faculty of Science, Tokyo University of Science
| | - Hiroshi Matsui
- Department of Physics, Graduate School of Science, Tohoku University
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24
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Monasterio M, Gaitero JJ, Manzano H, Dolado JS, Cerveny S. Effect of chemical environment on the dynamics of water confined in calcium silicate minerals: natural and synthetic tobermorite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:4964-4972. [PMID: 25867059 DOI: 10.1021/acs.langmuir.5b00614] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Confined water in the slit mesopores of the mineral tobermorite provides an excellent model system for analyzing the dynamic properties of water confined in cement-like materials. In this work, we use broadband dielectric spectroscopy (BDS) to analyze the dynamic of water entrapped in this crystalline material. Two samples, one natural and one synthetic, were analyzed, and despite their similar structure, the motion of confined water in their zeolitic cavity displays considerably different behavior. The water dynamics splits into two different behaviors depending on the chemical nature of the otherwise identical structural environment: water molecules located in areas where the primary building units are SiO4 relax slowly compared to water molecules located in cavities built with both AlO4 and SiO4. Compared to water confined in regular porous systems, water restricted in tobermorite is slower, indicating that the mesopore structure induces high disorder in the water structure. A comparison with water confined in the C-S-H gel is also discussed in this work. The strong dynamical changes in water due to the presence of aluminum might have important implications in the chemical transport of ions within hydrated calcium silicates, a process that governs the leaching and chemical degradation of cement.
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Affiliation(s)
- Manuel Monasterio
- †Centro de Fisica de Materiales (CSIC, UPV/EHU)-Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | | | - Hegoi Manzano
- §Molecular Spectroscopy Laboratory, University of Basque Country UPV EHU, Bilbao 48080, Spain
| | | | - Silvina Cerveny
- †Centro de Fisica de Materiales (CSIC, UPV/EHU)-Materials Physics Center (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- ∥Donostia International Physics Center, 20018 San Sebastián, Spain
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25
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Gómez-Álvarez P, Calero S. Insights into the microscopic behaviour of nanoconfined water: host structure and thermal effects. CrystEngComm 2015. [DOI: 10.1039/c4ce01335b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Burtch NC, Jasuja H, Walton KS. Water Stability and Adsorption in Metal–Organic Frameworks. Chem Rev 2014; 114:10575-612. [DOI: 10.1021/cr5002589] [Citation(s) in RCA: 1621] [Impact Index Per Article: 162.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas C. Burtch
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Himanshu Jasuja
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Krista S. Walton
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332, United States
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27
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Haigis V, Belkhodja Y, Coudert FX, Vuilleumier R, Boutin A. Challenges in first-principles NPT molecular dynamics of soft porous crystals: A case study on MIL-53(Ga). J Chem Phys 2014; 141:064703. [DOI: 10.1063/1.4891578] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Calero S, Gómez-Álvarez P. Hydrogen bonding of water confined in zeolites and their zeolitic imidazolate framework counterparts. RSC Adv 2014. [DOI: 10.1039/c4ra01508h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Humplik T, Raj R, Maroo SC, Laoui T, Wang EN. Effect of hydrophilic defects on water transport in MFI zeolites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:6446-6453. [PMID: 24810585 DOI: 10.1021/la500939t] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The subnanometer pore structure of zeolites and other microporous materials has been proposed to act as a molecular sieve for various water separation technologies. However, due to the increased interaction between the solid and water in these nanoconfined spaces, it is unclear which type of interface, be it hydrophilic or hydrophobic, offers an advantageous medium for enhancing transport properties. In this work, we probe the role of hydrophilic defects on the transport of water inside the microporous hydrophobic MFI zeolite pore structure via combined sorption and high-pressure infiltration experiments. While the inclusion of defects was observed to increase the amount of water within the zeolite pore network by up to 7 times at the saturation pressure, the diffusivity of this infiltrated water was lowered by up to 2 orders of magnitude in comparison to that of water within the nearly defect-free hydrophobic MFI zeolite. Subsequently, the permeability of water within the more defective MFI zeolite was an order of magnitude lower than that of the nearly defect-free zeolite. The results from these experiments suggest that the intrinsic hydrophobic pore structure of MFI zeolites can facilitate faster water transport due to the decreased attraction between the water and the defect-free surface. While the strong attraction of water to the defects allows for water to infiltrate the porous network at lower pressures, the results suggest that this strong attraction decreases the mobility of the infiltrated water. The insights gained from this study can be utilized to improve the design of future membranes for water desalination and other separation techniques.
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Affiliation(s)
- Thomas Humplik
- Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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31
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Joshi KL, Psofogiannakis G, van Duin ACT, Raman S. Reactive molecular simulations of protonation of water clusters and depletion of acidity in H-ZSM-5 zeolite. Phys Chem Chem Phys 2014; 16:18433-41. [DOI: 10.1039/c4cp02612h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protonation of water inside H-ZSM-5 zeolite using the ReaxFF reactive force field method.
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Affiliation(s)
- Kaushik L. Joshi
- Department of Mechanical and Nuclear Engineering
- Pennsylvania State University
- University Park
- , USA
| | - George Psofogiannakis
- Department of Mechanical and Nuclear Engineering
- Pennsylvania State University
- University Park
- , USA
| | - Adri C. T. van Duin
- Department of Mechanical and Nuclear Engineering
- Pennsylvania State University
- University Park
- , USA
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32
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Ortiz AU, Freitas AP, Boutin A, Fuchs AH, Coudert FX. What makes zeolitic imidazolate frameworks hydrophobic or hydrophilic? The impact of geometry and functionalization on water adsorption. Phys Chem Chem Phys 2014; 16:9940-9. [DOI: 10.1039/c3cp54292k] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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33
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Jeffroy M, Nieto-Draghi C, Boutin A. Molecular simulation of zeolite flexibility. MOLECULAR SIMULATION 2013. [DOI: 10.1080/08927022.2013.840898] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Marie Jeffroy
- IFP Energies Nouvelles, 1 et 4, Avenue de Bois-Préau, 92852, Rueil-Malmaison, France
- Laboratoire de Chimie Physique, Université Paris Sud XI, Bâtiment 349, Orsay Cedex, France
| | - Carlos Nieto-Draghi
- Laboratoire de Chimie Physique, Université Paris Sud XI, Bâtiment 349, Orsay Cedex, France
| | - Anne Boutin
- Département de Chimie, CNRS-ENS-UPMC, UMR 8640, École Normale Supérieure, 24 rue Lhomond, 75005, Paris, France
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Bermudez VM. Investigation of the interaction of γ-Al2O3 with aqueous solutions of dimethyl methylphosphonate using infrared multiple internal reflection spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:1483-1489. [PMID: 23350945 DOI: 10.1021/la304744u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The interaction of dilute solutions of dimethyl methylphosphonate (DMMP) in H(2)O with thin porous layers of γ-Al(2)O(3) has been studied under steady-state conditions using infrared multiple-internal-reflection spectroscopy. Upon the initial introduction of the DMMP solution to a previously H(2)O-saturated surface, DMMP diffuses into the porous layer and displaces weakly hydrogen-bonded H(2)O molecules. This is accompanied by hydrolysis of the γ-Al(2)O(3) to form Al(OH)(3) and/or AlO(OH). The P═O group of DMMP interacts predominantly with H(2)O and gives no clear indication of bonding to the oxide surface itself, from which it is inferred that the displacement of weakly adsorbed H(2)O results from the interaction of acidic Al-OH sites with the methoxy O atoms of DMMP. No hydrolysis of the DMMP, either in solution or in contact with the oxide, was detectable under the present conditions. The results have practical implications in the decontamination of materials following exposure to toxic reagents related to DMMP.
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Affiliation(s)
- V M Bermudez
- Electronics Science and Technology Division, Naval Research Laboratory, Washington, DC 20375-5347, United States.
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35
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Haigis V, Coudert FX, Vuilleumier R, Boutin A. Investigation of structure and dynamics of the hydrated metal–organic framework MIL-53(Cr) using first-principles molecular dynamics. Phys Chem Chem Phys 2013; 15:19049-56. [DOI: 10.1039/c3cp53126k] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Castillo JM, Silvestre-Albero J, Rodriguez-Reinoso F, Vlugt TJH, Calero S. Water adsorption in hydrophilic zeolites: experiment and simulation. Phys Chem Chem Phys 2013; 15:17374-82. [DOI: 10.1039/c3cp52910j] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Bousquet D, Coudert FX, Boutin A. Free energy landscapes for the thermodynamic understanding of adsorption-induced deformations and structural transitions in porous materials. J Chem Phys 2012; 137:044118. [DOI: 10.1063/1.4738776] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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38
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De Toni M, Jonchiere R, Pullumbi P, Coudert FX, Fuchs AH. How Can a Hydrophobic MOF be Water-Unstable? Insight into the Hydration Mechanism of IRMOFs. Chemphyschem 2012; 13:3497-503. [DOI: 10.1002/cphc.201200455] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Indexed: 11/10/2022]
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Amrouche H, Creton B, Siperstein F, Nieto-Draghi C. Prediction of thermodynamic properties of adsorbed gases in zeolitic imidazolate frameworks. RSC Adv 2012. [DOI: 10.1039/c2ra00025c] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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40
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Fukushi D, Kasuya M, Sakuma H, Kurihara K. Fluorescent Dye Probe for Monitoring Local Viscosity of Confined Liquids. CHEM LETT 2011. [DOI: 10.1246/cl.2011.776] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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41
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Wang H, Lin YS. Effects of water vapor on gas permeation and separation properties of MFI zeolite membranes at high temperatures. AIChE J 2011. [DOI: 10.1002/aic.12622] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Smirnov KS, Bougeard D. Water behaviour in nanoporous aluminosilicates. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:284115. [PMID: 21399287 DOI: 10.1088/0953-8984/22/28/284115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This paper briefly reviews results of molecular dynamics simulation studies of water confined in nanoporous aluminosilicates. The behaviour of confined molecules is shown to be influenced by the nature of the host structure, and the size and the topology of the voids. For some of the systems discussed the ambiguity in results of different modelling studies call for the use of extended potential and structural models. Thus, the use of polarizable force fields was shown to be necessary to take into account the variation of the molecular dipole of confined molecules in different environments.
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Affiliation(s)
- Konstantin S Smirnov
- Laboratoire de Spectrochimie Infrarouge et Raman, Université Lille 1, Sciences et Technologie, CNRS; Bâtiment C5, 59655 Villeneuve d'Ascq, France.
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43
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Paranthaman S, Coudert FX, Fuchs AH. Water adsorption in hydrophobic MOF channels. Phys Chem Chem Phys 2010; 12:8123-9. [DOI: 10.1039/b925074c] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Karbowiak T, Saada MA, Rigolet S, Ballandras A, Weber G, Bezverkhyy I, Soulard M, Patarin J, Bellat JP. New insights in the formation of silanol defects in silicalite-1 by water intrusion under high pressure. Phys Chem Chem Phys 2010; 12:11454-66. [DOI: 10.1039/c000931h] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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