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Naciri Y, Ghazzal MN, Paineau E. Nanosized tubular clay minerals as inorganic nanoreactors for energy and environmental applications: A review to fill current knowledge gaps. Adv Colloid Interface Sci 2024; 326:103139. [PMID: 38552380 DOI: 10.1016/j.cis.2024.103139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/08/2024] [Accepted: 03/24/2024] [Indexed: 04/13/2024]
Abstract
Modern society pays further and further attention to environmental protection and the promotion of sustainable energy solutions. Heterogeneous photocatalysis is widely recognized as one of the most economically viable and ecologically sound technologies to combat environmental pollution and the global energy crisis. One challenge is finding a suitable photocatalytic material for an efficient process. Inorganic nanotubes have garnered attention as potential candidates due to their optoelectronic properties, which differ from their bulk equivalents. Among them, clay nanotubes (halloysite, imogolite, and chrysotile) are attracting renewed interest for photocatalysis applications thanks to their low production costs, their unique physical and chemical properties, and the possibility to functionalize or dope their structure to enhance charge-carriers separation into their structure. In this review, we provide new insights into the potential of these inorganic nanotubes in photocatalysis. We first discuss the structural and morphological features of clay nanotubes. Applications of photocatalysts based on clay nanotubes across a range of photocatalytic reactions, including the decomposition of organic pollutants, elimination of NOx, production of hydrogen, and disinfection of bacteria, are discussed. Finally, we highlight the obstacles and outline potential avenues for advancing the current photocatalytic system based on clay nanotubes. Our aim is that this review can offer researchers new opportunities to advance further research in the field of clay nanotubes-based photocatalysis with other vital applications in the future.
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Affiliation(s)
- Yassine Naciri
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, Orsay 91405, France; Université Paris-Saclay, CNRS, UMR8000, Institut de Chimie Physique, Orsay 91405, France
| | - Mohamed Nawfal Ghazzal
- Université Paris-Saclay, CNRS, UMR8000, Institut de Chimie Physique, Orsay 91405, France.
| | - Erwan Paineau
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, Orsay 91405, France.
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2
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CO 2 Adsorption on Modified Mesoporous Silicas: The Role of the Adsorption Sites. NANOMATERIALS 2021; 11:nano11112831. [PMID: 34835596 PMCID: PMC8621056 DOI: 10.3390/nano11112831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 02/05/2023]
Abstract
The post-synthesis procedure for cyclic amine (morpholine and 1-methylpiperazine) modified mesoporous MCM-48 and SBA-15 silicas was developed. The procedure for preparation of the modified mesoporous materials does not affect the structural characteristics of the initial mesoporous silicas strongly. The initial and modified materials were characterized by XRD, N2 physisorption, thermal analysis, and solid-state NMR. The CO2 adsorption of the obtained materials was tested under dynamic and equilibrium conditions. The NMR data revealed the formation of different CO2 adsorbed forms. The materials exhibited high CO2 absorption capacity lying above the benchmark value of 2 mmol/g and stretching out to the outstanding 4.4 mmol/g in the case of 1-methylpiperazin modified MCM-48. The materials are reusable, and their CO2 adsorption capacities are slightly lower in three adsorption/desorption cycles.
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3
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Highly efficient CO2 adsorption of corn kernel-derived porous carbon with abundant oxygen functional groups. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101620] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4
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Davarpanah E, Armandi M, Hernández S, Fino D, Arletti R, Bensaid S, Piumetti M. CO 2 capture on natural zeolite clinoptilolite: Effect of temperature and role of the adsorption sites. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 275:111229. [PMID: 32861002 DOI: 10.1016/j.jenvman.2020.111229] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 06/11/2023]
Abstract
In this study, the adsorption capacity of the low-cost zeolite clinoptilolite was investigated for capturing carbon dioxide (CO2) emitted from industrial processes at moderate temperature. The CO2 adsorption capacity of clinoptilolite (a commercial natural zeolite) and ion-exchanged (with Na+ and Ca2+) clinoptilolite were tested under both dynamic (using a fixed-bed reactor operating with 10% vol. CO2 in N2) and equilibrium conditions (measuring single component adsorption isotherms). The dynamic CO2 adsorption capacity of bare clinoptilolite and ion-exchanged clinoptilolite were evaluated in the temperature range from 293 K to 338 K and the obtained breakthrough curves were compared with those of the commercial zeolite 13X (Z13X). Although the adsorption capacity of Z13X exceeded those of bare clinoptilolite and ion-exchanged clinoptilolite at 293 K, the clinoptilolite exhibited the highest CO2 uptake at a moderate temperature of 338 K (i.e. 25 % higher than Z13X). This feature appears in agreement with the lower isosteric heat of CO2 adsorption on clinoptilolite compared to the other samples. The surface species affecting the qiso and adsorption capacity were investigated through the FTIR spectroscopy using CO2 as probe molecule. As a whole, it has been observed that CO2 forms linear adducts onto K+ and Mg2+ cations of the bare clinoptilolite, and carbonate-like species onto its basic sites. With the Na-exchanged clinoptilolite, Na+ ions led to a decrease in surface basicity and to the formation of both single (Na+···OCO) and dual (Na+···OCO⋯Na+) cationic sites available for the formation of linear adducts. As a result of the remarkable adsorption capacity of clinoptilolite at 338 K, this material appears to be a promising adsorbent for the direct CO2 removal from different flue gases sources operating at such temperatures.
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Affiliation(s)
- E Davarpanah
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
| | - M Armandi
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
| | - S Hernández
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
| | - D Fino
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
| | - R Arletti
- Department of Chemical and Geological Sciences, University of Modena and Regio Emilia, Via Giuseppe Campi 103, 4125, Modena, Italy
| | - S Bensaid
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy
| | - M Piumetti
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Turin, Italy.
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5
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Termination Effects in Aluminosilicate and Aluminogermanate Imogolite Nanotubes: A Density Functional Theory Study. CRYSTALS 2020. [DOI: 10.3390/cryst10111051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We investigate termination effects in aluminosilicate (AlSi) and aluminogermanate (AlGe) imogolite nanotubes (NTs) by means of semi-local and range-corrected hybrid Density Functional Theory (DFT) simulations. Following screening and identification of the smallest finite model capable of accommodating full relaxation of the NT terminations around an otherwise geometrically and electrostatically unperturbed core region, we quantify and discuss the effects of physical truncation on the structure, relative energy, electrostatics and electronic properties of differently terminated, finite-size models of the NTs. In addition to composition-dependent changes in the valence (VB) and conduction band (CB) edges and resultant band gap (BG), the DFT simulations uncover longitudinal band bending and separation in the finite AlSi and AlGe models. Depending on the given termination of the NTs, such longitudinal effects manifest in conjunction with the radial band separation typical of fully periodic AlSi and AlGe NTs. The strong composition dependence of the longitudinal and radial band bending in AlSi and AlGe NTs suggests different mechanisms for the generation, relaxation and separation of photo-generated holes in AlSi and AlGe NTs, inviting further research in the untapped potential of imogolite compositional and structural flexibility for photo-catalytic applications.
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Li L, Takada A, Ma W, Fujikawa S, Ariyoshi M, Igata K, Okajima M, Kaneko T, Takahara A. Structure and Properties of Hybrid Film Fabricated by Spin-Assisted Layer-by-Layer Assembly of Sacran and Imogolite Nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:1718-1726. [PMID: 32040331 DOI: 10.1021/acs.langmuir.9b03626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A free-standing (biomacomolecule/synthetic inorganic nanotubes) hybrid film was fabricated through an alternative layer-by-layer (LBL) assembly of sacran and imogolite nanotubes. Sacran is a natural polysaccharide extracted from the cyanobacterium Aphanothece sacrum, while imogolite is a natural tubular aluminosilicate clay found in volcano ash. The hybrid film thickness increased linearly with the number of the bilayers, because of the interaction between the negatively charged surface of sacran and the positively charged surface of imogolite. UV-vis spectroscopy indicated that the LBL film exhibited good transparency. The surface morphology of the LBL film was smooth in the micrometer scale; many imogolite nanotubes were adsorbed onto the sacran layer, while no imogolite clusters were observed. Furthermore, the structure, stability, gas permeability, and mechanical properties of the LBL films were investigated.
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Affiliation(s)
- Linlin Li
- Graduate School of Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
| | - Akihiko Takada
- Institute for Materials Chemistry and Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
| | - Wei Ma
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
| | - Shigenori Fujikawa
- Graduate School of Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
| | - Miho Ariyoshi
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
| | - Kosuke Igata
- Graduate School of Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
| | - Maiko Okajima
- School of Materials Science , Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai , Nomi , Ishikawa 923-1292 , Japan
| | - Tatsuo Kaneko
- School of Materials Science , Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai , Nomi , Ishikawa 923-1292 , Japan
| | - Atsushi Takahara
- Graduate School of Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
- Institute for Materials Chemistry and Engineering , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) , Kyushu University , 744 Motooka, Nishi-ku , Fukuoka 819-0395 , Japan
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7
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Li L, Ma W, Takada A, Takayama N, Takahara A. Organic–Inorganic Hybrid Films Fabricated from Cellulose Fibers and Imogolite Nanotubes. Biomacromolecules 2019; 20:3566-3574. [DOI: 10.1021/acs.biomac.9b00881] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Linlin Li
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Wei Ma
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Akihiko Takada
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Nobuhisa Takayama
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Atsushi Takahara
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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8
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Poli E, Elliott JD, Chulkov SK, Watkins MB, Teobaldi G. The Role of Cation-Vacancies for the Electronic and Optical Properties of Aluminosilicate Imogolite Nanotubes: A Non-local, Linear-Response TDDFT Study. Front Chem 2019; 7:210. [PMID: 31024896 PMCID: PMC6469436 DOI: 10.3389/fchem.2019.00210] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 03/18/2019] [Indexed: 11/13/2022] Open
Abstract
We report a combined non-local (PBE-TC-LRC) Density Functional Theory (DFT) and linear-response time-dependent DFT (LR-TDDFT) study of the structural, electronic, and optical properties of the cation-vacancy based defects in aluminosilicate (AlSi) imogolite nanotubes (Imo-NTs) that have been recently proposed on the basis of Nuclear Magnetic Resonance (NMR) experiments. Following numerical determination of the smallest AlSi Imo-NT model capable of accommodating the defect-induced relaxation with negligible finite-size errors, we analyse the defect-induced structural deformations in the NTs and ensuing changes in the NTs' electronic structure. The NMR-derived defects are found to introduce both shallow and deep occupied states in the pristine NTs' band gap (BG). These BG states are found to be highly localized at the defect site. No empty defect-state is modeled for any of the considered systems. LR-TDDFT simulation of the defects reveal increased low-energy optical absorbance for all but one defects, with the appearance of optically active excitations at energies lower than for the defect-free NT. These results enable interpretation of the low-energy tail in the experimental UV-vis spectra for AlSi NTs as being due to the defects. Finally, the PBE-TC-LRC-approximated exciton binding energy for the defects' optical transitions is found to be substantially lower (up to 0.8 eV) than for the pristine defect-free NT's excitations (1.1 eV).
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Affiliation(s)
- Emiliano Poli
- The Abdus Salam Center for Theoretical Physics, Condensed Matter and Statistical Physics Department, Trieste, Italy
| | - Joshua D. Elliott
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università degli Studi di Padova, Padova, Italy
- CNR-IOM DEMOCRITOS, Consiglio Nazionale delle Ricerche-Istituto Officina dei Materiali, Trieste, Italy
- School of Chemical Engineering and Analytical Science, The University of Manchester, Manchester, United Kingdom
| | - Sergey K. Chulkov
- School of Mathematics and Physics, University of Lincoln, Brayford Pool, Lincoln, United Kingdom
| | - Matthew B. Watkins
- School of Mathematics and Physics, University of Lincoln, Brayford Pool, Lincoln, United Kingdom
| | - Gilberto Teobaldi
- Daresbury Laboratory, Scientific Computing Department, Science and Technology Facilities Council, Warrington, United Kingdom
- Beijing Computational Science Research Centre, Beijing, China
- Stephenson Institute for Renewable Energy and Department of Chemistry, University of Liverpool, Liverpool, United Kingdom
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9
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Imogolite Nanotubes: A Flexible Nanoplatform with Multipurpose Applications. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8101921] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Among a wide variety of inorganic nanotubes, imogolite nanotubes (INTs) represent a model of nanoplatforms with an untapped potential for advanced technological applications. Easily synthesized by sol-gel methods, these nanotubes are directly obtained with a monodisperse pore size. Coupled with the possibility to adjust their surface properties by using straightforward functionalization processes, INTs form a unique class of diameter-controlled nanotubes with functional interfaces. The purpose of this review is to provide the reader with an overview of the synthesis and functionalization of INTs. The properties of INTs will be stated afterwards into perspective with the recent development on their applications, in particular for polymer/INTs nanocomposites, molecular confinement or catalysis.
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10
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Photo-activated degradation of tartrazine by H 2 O 2 as catalyzed by both bare and Fe-doped methyl-imogolite nanotubes. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.08.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Elliott JD, Poli E, Scivetti I, Ratcliff LE, Andrinopoulos L, Dziedzic J, Hine NDM, Mostofi AA, Skylaris C, Haynes PD, Teobaldi G. Chemically Selective Alternatives to Photoferroelectrics for Polarization-Enhanced Photocatalysis: The Untapped Potential of Hybrid Inorganic Nanotubes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600153. [PMID: 28251044 PMCID: PMC5323885 DOI: 10.1002/advs.201600153] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/24/2016] [Indexed: 05/31/2023]
Abstract
Linear-scaling density functional theory simulation of methylated imogolite nanotubes (NTs) elucidates the interplay between wall-polarization, bands separation, charge-transfer excitation, and tunable electrostatics inside and outside the NT-cavity. The results suggest that integration of polarization-enhanced selective photocatalysis and chemical separation into one overall dipole-free material should be possible. Strategies are proposed to increase the NT polarization for maximally enhanced electron-hole separation.
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Affiliation(s)
- Joshua D. Elliott
- Stephenson Institute for Renewable Energy and Department of ChemistryUniversity of LiverpoolLiverpoolL69 3BXUK
| | - Emiliano Poli
- Stephenson Institute for Renewable Energy and Department of ChemistryUniversity of LiverpoolLiverpoolL69 3BXUK
| | - Ivan Scivetti
- Stephenson Institute for Renewable Energy and Department of ChemistryUniversity of LiverpoolLiverpoolL69 3BXUK
| | - Laura E. Ratcliff
- The Thomas Young Centre for Theory and Simulation of MaterialsImperial College LondonLondonSW7 2AZUK
| | - Lampros Andrinopoulos
- The Thomas Young Centre for Theory and Simulation of MaterialsImperial College LondonLondonSW7 2AZUK
| | - Jacek Dziedzic
- School of ChemistryUniversity of SouthamptonSouthamptonSO17 1BJUK
- Faculty of Applied Physics and MathematicsGdansk University of TechnologyGdansk80 233Poland
| | | | - Arash A. Mostofi
- The Thomas Young Centre for Theory and Simulation of MaterialsImperial College LondonLondonSW7 2AZUK
| | | | - Peter D. Haynes
- The Thomas Young Centre for Theory and Simulation of MaterialsImperial College LondonLondonSW7 2AZUK
| | - Gilberto Teobaldi
- Stephenson Institute for Renewable Energy and Department of ChemistryUniversity of LiverpoolLiverpoolL69 3BXUK
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12
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Shafia E, Esposito S, Bahadori E, Armandi M, Manzoli M, Bonelli B. Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties. J Vis Exp 2016:54758. [PMID: 27911418 PMCID: PMC5226238 DOI: 10.3791/54758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The goal of the protocol is to synthesize Fe-doped aluminosilicate nanotubes of the imogolite type with the formula (OH)3Al2-xFexO3SiOH. Doping with Fe aims at lowering the band gap of imogolite, an insulator with the chemical formula (OH)3Al2O3SiOH, and at modifying its adsorption properties towards azo-dyes, an important class of organic pollutants of both wastewater and groundwater. Fe-doped nanotubes are obtained in two ways: by direct synthesis, where FeCl3 is added to an aqueous mixture of the Si and Al precursors, and by post-synthesis loading, where preformed nanotubes are put in contact with a FeCl3•6H2O aqueous solution. In both synthesis methods, isomorphic substitution of Al3+ by Fe3+ occurs, preserving the nanotube structure. Isomorphic substitution is indeed limited to a mass fraction of ~1.0% Fe, since at a higher Fe content (i.e., a mass fraction of 1.4% Fe), Fe2O3 clusters form, especially when the loading procedure is adopted. The physicochemical properties of the materials are studied by means of X-ray powder diffraction (XRD), N2 sorption isotherms at -196 °C, high resolution transmission electron microscopy (HRTEM), diffuse reflectance (DR) UV-Vis spectroscopy, and ζ-potential measurements. The most relevant result is the possibility to replace Al3+ ions (located on the outer surface of the nanotubes) by post-synthesis loading on preformed imogolite without perturbing the delicate hydrolysis equilibria occurring during nanotube formation. During the loading procedure, an anionic exchange occurs, where Al3+ ions on the outer surface of the nanotubes are replaced by Fe3+ ions. In Fe-doped aluminosilicate nanotubes, isomorphic substitution of Al3+ by Fe3+ is found to affect the band gap of doped imogolite. Nonetheless, Fe3+ sites on the outer surface of nanotubes are able to coordinate organic moieties, like the azo-dye Acid Orange 7, through a ligand-displacement mechanism occurring in an aqueous solution.
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Affiliation(s)
- Ehsan Shafia
- Department of Applied Science and Technology, Politecnico di Torino
| | - Serena Esposito
- Department of Civil and Mechanical Engineering, Università degli Studi di Cassino e del Lazio Meridionale
| | - Elnaz Bahadori
- Department of Applied Science and Technology, Politecnico di Torino
| | - Marco Armandi
- Department of Applied Science and Technology, Politecnico di Torino; Institute of Chemistry, Politecnico di Torino
| | - Maela Manzoli
- Department of Chemistry & NIS Interdepartmental Centre, University of Turin
| | - Barbara Bonelli
- Department of Applied Science and Technology, Politecnico di Torino; Institute of Chemistry, Politecnico di Torino; INSTM Unit of Torino-Politecnico, Politecnico di Torino;
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13
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Reactivity of bare and Fe-doped alumino-silicate nanotubes (imogolite) with H2O2 and the azo-dye Acid Orange 7. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.10.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Poli E, Elliott JD, Ratcliff LE, Andrinopoulos L, Dziedzic J, Hine NDM, Mostofi AA, Skylaris CK, Haynes PD, Teobaldi G. The potential of imogolite nanotubes as (co-)photocatalysts: a linear-scaling density functional theory study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:074003. [PMID: 26808452 DOI: 10.1088/0953-8984/28/7/074003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
We report a linear-scaling density functional theory (DFT) study of the structure, wall-polarization absolute band-alignment and optical absorption of several, recently synthesized, open-ended imogolite (Imo) nanotubes (NTs), namely single-walled (SW) aluminosilicate (AlSi), SW aluminogermanate (AlGe), SW methylated aluminosilicate (AlSi-Me), and double-walled (DW) AlGe NTs. Simulations with three different semi-local and dispersion-corrected DFT-functionals reveal that the NT wall-polarization can be increased by nearly a factor of four going from SW-AlSi-Me to DW-AlGe. Absolute vacuum alignment of the NT electronic bands and comparison with those of rutile and anatase TiO2 suggest that the NTs may exhibit marked propensity to both photo-reduction and hole-scavenging. Characterization of the NTs' band-separation and optical properties reveal the occurrence of (near-)UV inside-outside charge-transfer excitations, which may be effective for electron-hole separation and enhanced photocatalytic activity. Finally, the effects of the NTs' wall-polarization on the absolute alignment of electron and hole acceptor states of interacting water (H2O) molecules are quantified and discussed.
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Affiliation(s)
- E Poli
- Stephenson Institute for Renewable Energy and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, UK
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15
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Yang AC, Wang TY, Dai CA, Kang DY. Incorporation of single-walled aluminosilicate nanotubes for the control of crystal size and porosity of zeolitic imidazolate framework-L. CrystEngComm 2016. [DOI: 10.1039/c5ce02031j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The incorporation of single-walled aluminosilicate nanotubes (AlSiNTs) into the interlayer of zeolitic imidazolate framework-L (ZIF-L) results in novel AlSiNT@ZIF-L nanocomposites.
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Affiliation(s)
- An-Chih Yang
- Department of Chemical Engineering
- National Taiwan University
- Taipei, Taiwan
| | - Ting-Yu Wang
- Electron Microscope Unit of Instrument Center
- National Taiwan University
- Taipei, Taiwan
| | - Chi-An Dai
- Department of Chemical Engineering
- National Taiwan University
- Taipei, Taiwan
| | - Dun-Yen Kang
- Department of Chemical Engineering
- National Taiwan University
- Taipei, Taiwan
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16
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Rotoli BM, Guidi P, Bonelli B, Bernardeschi M, Bianchi MG, Esposito S, Frenzilli G, Lucchesi P, Nigro M, Scarcelli V, Tomatis M, Zanello PP, Fubini B, Bussolati O, Bergamaschi E. Imogolite: An Aluminosilicate Nanotube Endowed with Low Cytotoxicity and Genotoxicity. Chem Res Toxicol 2014; 27:1142-54. [DOI: 10.1021/tx500002d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Patrizia Guidi
- Department
of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Barbara Bonelli
- Department
of Applied Science and Technology and INSTM, Unit of Torino Politecnico, Politecnico di Torino, 10129 Turin, Italy
| | | | | | - Serena Esposito
- Department
of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, Italy
| | - Giada Frenzilli
- Department
of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Paolo Lucchesi
- Department
of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Marco Nigro
- Department
of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Vittoria Scarcelli
- Department
of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Maura Tomatis
- Department
of Chemistry and “G. Scansetti” Interdepartmental Center
for Studies on Asbestos and Other Toxic Particulates, University of Torino, 10125 Turin, Italy
| | | | - Bice Fubini
- Department
of Chemistry and “G. Scansetti” Interdepartmental Center
for Studies on Asbestos and Other Toxic Particulates, University of Torino, 10125 Turin, Italy
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17
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Avellan A, Levard C, Kumar N, Rose J, Olivi L, Thill A, Chaurand P, Borschneck D, Masion A. Structural incorporation of iron into Ge–imogolite nanotubes: a promising step for innovative nanomaterials. RSC Adv 2014. [DOI: 10.1039/c4ra08840a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Iron-doped aluminogermanate nanotubes were obtained using a single step, aqueous phase synthesis protocol, resulting in a novel nanomaterial.
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Affiliation(s)
| | | | - N. Kumar
- CEREGE
- CNRS
- Aix-Marseille Univ
- IRD
- UM34
| | - J. Rose
- CEREGE
- CNRS
- Aix-Marseille Univ
- IRD
- UM34
| | - L. Olivi
- ELETTRA
- Synchrotron Light Source
- 34012 Trieste, Italy
| | - A. Thill
- CEA Saclay
- IRAMIS
- Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire
- 91191 Gif sur Yvette, France
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