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Winczewski JP, Arriaga Dávila J, Herrera-Zaldívar M, Ruiz-Zepeda F, Córdova-Castro RM, Pérez de la Vega CR, Cabriel C, Izeddin I, Gardeniers H, Susarrey-Arce A. 3D-Architected Alkaline-Earth Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2307077. [PMID: 37793118 DOI: 10.1002/adma.202307077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/21/2023] [Indexed: 10/06/2023]
Abstract
3D ceramic architectures are captivating geometrical features with an immense demand in optics. In this work, an additive manufacturing (AM) approach for printing alkaline-earth perovskite 3D microarchitectures is developed. The approach enables custom-made photoresists suited for two-photon lithography, permitting the production of alkaline-earth perovskite (BaZrO3 , CaZrO3 , and SrZrO3 ) 3D structures shaped in the form of octet-truss lattices, gyroids, or inspired architectures like sodalite zeolite, and C60 buckyballs with micrometric and nanometric feature sizes. Alkaline-earth perovskite morphological, structural, and chemical characteristics are studied. The optical properties of such perovskite architectures are investigated using cathodoluminescence and wide-field photoluminescence emission to estimate the lifetime rate and defects in BaZrO3 , CaZrO3 , and SrZrO3 . From a broad perspective, this AM methodology facilitates the production of 3D-structured mixed oxides. These findings are the first steps toward dimensionally refined high-refractive-index ceramics for micro-optics and other terrains like (photo/electro)catalysis.
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Affiliation(s)
- Jędrzej P Winczewski
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Joel Arriaga Dávila
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Manuel Herrera-Zaldívar
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada, Baja California, México, C.P. 22800, USA
| | - Francisco Ruiz-Zepeda
- National Institute of Chemistry, Hajdrihova 19, Ljubljana, SI-1000, Slovenia
- Department of Physics and Chemistry of Materials, Institute of Metals and Technology, Lepi pot 11, Ljubljana, Slovenia
| | | | | | - Clément Cabriel
- Institut Langevin, ESPCI Paris, CNRS, PSL University, 1 rue Jussieu, Paris, 75005, France
| | - Ignacio Izeddin
- Institut Langevin, ESPCI Paris, CNRS, PSL University, 1 rue Jussieu, Paris, 75005, France
| | - Han Gardeniers
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Arturo Susarrey-Arce
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
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2
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Purushotham D, Ramesh AM, Nagabhushan CM, Mahadevamurthy M, Shivanna S. Microwave hydrothermal preparation of reduced graphene oxide-induced p-AgO/n-MoO 3 heterostructures for enhanced photocatalytic activity through S-scheme mechanism and its electronic performance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:87549-87560. [PMID: 37428326 DOI: 10.1007/s11356-023-28496-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/25/2023] [Indexed: 07/11/2023]
Abstract
Through a powerful and modest closed system Microwave hydrothermal process, a methodological analysis is made in the rational synthesis of the reduced graphene oxide-induced p-AgO/n-MoO3 (RGAM) heterostructures. These have strong p-n junction heterostructures with considerable electron-hole recombination functioning as solar catalysts. The enhanced photocatalytic activity through the plasmonic step scheme (S-scheme mechanism) describes the effective charge recombination process. The energy band positions, bandgap, and work function are determined to understand the Fermi level shifts; this describes the S-scheme mechanism by UPS analysis which assessed an electron transfer between AgO and MoO3, yielding work function values of 6.34 eV and 6.62eV, respectively. This photocatalytic activity aids in dye removal by 94.22%, and heavy metals such as chromium (Cr) are eliminated by the surface action of sunlight on the produced material during solar irradiation. Electrochemical studies such as photocurrent response, cyclic voltammogram, and electrochemical impedance spectroscopy for RGAM heterostructures were also carried out. The study helps to broaden the search for and development of new hybrid carbon composites for electrochemical applications.
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Affiliation(s)
- Dhananjay Purushotham
- Centre for Materials Science and Technology, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore, 570 006, India
| | - Abhilash Mavinakere Ramesh
- Centre for Materials Science and Technology, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore, 570 006, India
- Department of Studies in Environmental Science, University of Mysore, Manasagangotri, Mysore, India
| | | | - Murali Mahadevamurthy
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysore, 570 006, India
| | - Srikantaswamy Shivanna
- Centre for Materials Science and Technology, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore, 570 006, India.
- Department of Studies in Environmental Science, University of Mysore, Manasagangotri, Mysore, India.
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3
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Preparation of Tm3+ ion-doped BaZrO3 powder and its luminescence performance study. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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4
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Peláez ÁT, Mosa J, Pérez-Coll D, Aparicio M, Mather GC. Low-temperature Sintering and Enhanced Stability of Fluorine-modified BaZr0.8Y0.2O3-δ Synthesised by a Sol-Gel Alkoxide Route. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.09.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Shi Y, Xu Q, Tian Z, Liu G, Ma C, Zheng W. Ionic liquid-hydroxide-mediated low-temperature synthesis of high-entropy perovskite oxide nanoparticles. NANOSCALE 2022; 14:7817-7827. [PMID: 35262130 DOI: 10.1039/d1nr08316c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
High-entropy perovskite oxides (HEPOs) are attracting significant attention due to their unique structures, unprecedented properties and great application potential in many fields, while available synthetic methods have many shortcomings; so it is still a challenge to develop a simple, low-cost and environment-friendly synthetic strategy for HEPOs. Herein, a novel synthetic strategy is reported for HEPOs using an ionic liquid (IL)-hydroxide-mediated technique at a low temperature and normal atmospheric pressure. The synthesized HEPOs, including Ba(FeNbTiZrTa)O3, Ba(MnNbTiZrTa)O3, Ba(FeSnTiZrTa)O3 and Ba(FeVTiZrTa)O3, exhibit a cubic structure and a dispersed nanoparticle morphology (particle size of 20-60 nm). The formation process of HEPOs in an IL-KOH system can be described as follows: first, B-site metal source compounds are dissolved in IL-KOH medium to form hydroxyl complexes; second, the complexes further dehydrate, condensate and react with Ba2+ ions to form the crystal nuclei of HEPOs under the synergistic effect of reaction temperature and basicity; third, the growth of HEPO nuclei is completed by the Ostwald ripening process. In these processes, KOH not only plays a role as a solvent, but also provides sufficient OH- concentration for the formation and condensation of B-site metal hydroxyl complexes, while the IL also makes significant contributions: first, a lower reaction temperature and lower dosage of KOH are achieved by the use of the IL; second, the IL with good dissolving ability and low surface tensions can promote the nucleation rate of HEPOs and improve the Ostwald ripening process; third, the compact adsorption of the IL on the surface of products ensures a small particle size and high dispersion of HEPO nanoparticles to a certain extent. In brief, the technique provides an innovative, low-cost, simple and nontoxic strategy for the synthesis of HEPOs, which can be extended to other high-entropy materials.
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Affiliation(s)
- Yingying Shi
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
| | - Qiuchen Xu
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
| | - Zhangmin Tian
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
| | - Guiying Liu
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
| | - Chenxu Ma
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
| | - Wenjun Zheng
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
- Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, P. R. China
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6
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Sriram B, Baby JN, Hsu YF, Wang SF, George M, Veerakumar P, Lin KC. Electrochemical sensor-based barium zirconate on sulphur-doped graphitic carbon nitride for the simultaneous determination of nitrofurantoin (antibacterial agent) and nilutamide (anticancer drug). J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115782] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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7
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Laier LO, Assis M, Foggi CC, Gouveia AF, Vergani CE, Santana LCL, Cavalcante LS, Andrés J, Longo E. Surface-dependent properties of α-Ag2WO4: a joint experimental and theoretical investigation. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-02613-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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8
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Tello ACM, Assis M, Menasce R, Gouveia AF, Teodoro V, Jacomaci N, Zaghete MA, Andrés J, Marques GE, Teodoro MD, da Silva ABF, Bettini J, Longo E. Microwave-Driven Hexagonal-to-Monoclinic Transition in BiPO 4: An In-Depth Experimental Investigation and First-Principles Study. Inorg Chem 2020; 59:7453-7468. [PMID: 32407105 DOI: 10.1021/acs.inorgchem.0c00181] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Present theoretical and experimental work provides an in-depth understanding of the morphological, structural, electronic, and optical properties of hexagonal and monoclinic polymorphs of bismuth phosphate (BiPO4). Herein, we demonstrate how microwave irradiation induces the transformation of a hexagonal phase to a monoclinic phase in a short period of time and, thus, the photocatalytic performance of BiPO4. To complement and rationalize the experimental results, first-principles calculations have been performed within the framework of density functional theory. This was aimed at obtaining the geometric, energetic, and structural parameters as well as vibrational frequencies; further, the electronic properties (band structure diagram and density of states) of the bulk and corresponding surfaces of both the hexagonal and monoclinic phases of BiPO4 were also acquired. A detailed characterization of the low vibrational modes of both the hexagonal and monoclinic polymorphs is key to explaining the irreversible phase transformation from hexagonal to monoclinic. On the basis of the calculated values of the surface energies, a map of the available morphologies of both phases was obtained by using Wulff construction and compared to the observed scanning electron microscopy images. The BiPO4 crystals obtained after 16-32 min of microwave irradiation provided excellent photodegradation of Rhodamine B under visible-light irradiation. This enhancement was found to be related to the surface energy and the types of clusters formed on the exposed surfaces of the morphology. These findings provide details of the hexagonal-to-monoclinic phase transition in BiPO4 during microwave irradiation; further, the results will assist in the design of electronic devices with higher efficiency and reliability.
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Affiliation(s)
- Ana C M Tello
- Chemistry Department, CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil.,Instituto de Química de São Carlos, Universidade de São Paulo, P.O. Box 780, São Carlos, São Paulo 13566-590,Brazil
| | - Marcelo Assis
- Chemistry Department, CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
| | - Ricardo Menasce
- Chemistry Department, CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
| | - Amanda F Gouveia
- Chemistry Department, CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
| | - Vinicius Teodoro
- Chemistry Department, CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
| | - Natalia Jacomaci
- CDMF, LIEC, Chemistry Institute of the Paulista State University, UNESP, P.O. Box 1680, Araraquara, São Paulo 14801903, Brazil
| | - Maria A Zaghete
- CDMF, LIEC, Chemistry Institute of the Paulista State University, UNESP, P.O. Box 1680, Araraquara, São Paulo 14801903, Brazil
| | - Juan Andrés
- Department of Physical and Analytical Chemistry, University Jaume I, Castelló 12071, Spain
| | - Gilmar E Marques
- Physics Department, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
| | - Marcio D Teodoro
- Physics Department, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
| | - Albérico B F da Silva
- Instituto de Química de São Carlos, Universidade de São Paulo, P.O. Box 780, São Carlos, São Paulo 13566-590,Brazil
| | - Jefferson Bettini
- Brazilian Nanotechnology National Laboratory, Rua Giuseppe Maximo Scolfa no. 10000, Campinas, São Paulo BR-13083100, Brazil
| | - Elson Longo
- Chemistry Department, CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, São Carlos, São Paulo 13565-905, Brazil
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9
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Walton RI. Perovskite Oxides Prepared by Hydrothermal and Solvothermal Synthesis: A Review of Crystallisation, Chemistry, and Compositions. Chemistry 2020; 26:9041-9069. [PMID: 32267980 DOI: 10.1002/chem.202000707] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Indexed: 11/07/2022]
Abstract
Perovskite oxides with general composition ABO3 are a large group of inorganic materials that can contain a variety of cations from all parts of the Periodic Table and that have diverse properties of application in fields ranging from electronics, energy storage to photocatalysis. Solvothermal synthesis routes to these materials have become increasingly investigated in the past decade as a means of direct crystallisation of the solids from solution. These methods have significant advantages leading to adjustment of crystal form from the nanoscale to the micron-scale, the isolation of compositions not possible using conventional solid-state synthesis and in addition may lead to scalable processes for producing materials at moderate temperatures. These aspects are reviewed, with examples taken from the past decade's literature on the solvothermal synthesis of perovskites with a systematic survey of B-site cations, from transition metals in Groups 4-8 and main group elements in Groups 13, 14 and 15, to solid solutions and heterostructures. As well as hydrothermal reactions, the use of various solvents and solution additives are discussed and some trends identified, along with prospects for developing control and predictability in the crystallisation of complex oxide materials.
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Affiliation(s)
- Richard I Walton
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
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10
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Adekunle AS, Oyekunle JA, Durosinmi LM, Oluwafemi OS, Olayanju DS, Akinola AS, Obisesan OR, Akinyele OF, Ajayeoba TA. Potential of cobalt and cobalt oxide nanoparticles as nanocatalyst towards dyes degradation in wastewater. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2019.100405] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Kunti AK, Patra N, Harris RA, Sharma SK, Bhattacharyya D, Jha SN, Swart HC. Local Structure and Spectroscopic Properties of Eu3+-Doped BaZrO3. Inorg Chem 2019; 58:3073-3089. [DOI: 10.1021/acs.inorgchem.8b03088] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arup K. Kunti
- Department of Applied Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Nirmalendu Patra
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Richard A. Harris
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Shailendra K. Sharma
- Department of Applied Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
| | - Dibyendu Bhattacharyya
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Sambhu N. Jha
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Hendrik C. Swart
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
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12
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Sumina NB, Kumar SN, Achu R, Kumar BSD, Ray AK, Warrier KGK, Pillai S. Low Temperature Synthesis of High Energy Facets Exposed Sheet-like Anatase TiO2Mesocrystals Show Reduced e−/h+Pair Recombination Rates and Enhanced Photoactivity. ChemistrySelect 2016. [DOI: 10.1002/slct.201601412] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- N. B. Sumina
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 001 India
| | - S. Nishanth Kumar
- Agroprocessing and Natural Products Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - R. Achu
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - B. S. Dileep Kumar
- Agroprocessing and Natural Products Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - Alok K Ray
- Laser & Plasma Technology Division; Bhabha Atomic Research Centre; Mumbai - 400 085 India
| | - K. G. K. Warrier
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - Saju Pillai
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 001 India
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13
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Effect of Different Heating Process on the Photoluminescence Properties of Perovskite Eu-Doped BaZrO3 Powder. APPLIED SCIENCES-BASEL 2016. [DOI: 10.3390/app6010022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Fabbro MT, Saliby C, Rios LR, La Porta FA, Gracia L, Li MS, Andrés J, Santos LPS, Longo E. Identifying and rationalizing the morphological, structural, and optical properties of [Formula: see text]-Ag 2MoO 4 microcrystals, and the formation process of Ag nanoparticles on their surfaces: combining experimental data and first-principles calculations. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:065002. [PMID: 27877844 PMCID: PMC5069988 DOI: 10.1088/1468-6996/16/6/065002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 10/13/2015] [Accepted: 10/13/2015] [Indexed: 06/01/2023]
Abstract
We present a combined theoretical and experimental study on the morphological, structural, and optical properties of β-Ag2MoO4 microcrystals. β-Ag2MoO4 samples were prepared by a co-precipitation method. The nucleation and formation of Ag nanoparticles on β-Ag2MoO4 during electron beam irradiation were also analyzed as a function of electron beam dose. These events were directly monitored in real-time using in situ field emission scanning electron microscopy (FE-SEM). The thermodynamic equilibrium shape of the β-Ag2MoO4 crystals was built with low-index surfaces (001), (011), and (111) through a Wulff construction. This shape suggests that the (011) face is the dominating surface in the ideal morphology. A significant increase in the values of the surface energy for the (011) face versus those of the other surfaces was observed, which allowed us to find agreement between the experimental and theoretical morphologies. Our investigation of the different morphologies and structures of the β-Ag2MoO4 crystals provided insight into how the crystal morphology can be controlled so that the surface chemistry of β-Ag2MoO4 can be tuned for specific applications. The presence of structural disorder in the tetrahedral [MoO4] and octahedral [AgO6] clusters, the building blocks of β-Ag2MoO4, was used to explain the experimentally measured optical properties.
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Affiliation(s)
- Maria T Fabbro
- Department of Chemistry, CDMF, Universidade Federal de São Carlos, 13565-905, São Carlos, Brazil
- Department of Inorganic and Organic Chemistry, Universitat Jaume I, Campus Riu Sec, E-12071, Castellón, Spain
| | - Carla Saliby
- Department of Chemistry, CDMF, Universidade Federal de São Carlos, 13565-905, São Carlos, Brazil
| | - Larissa R Rios
- Department of Chemistry, CDMF, Universidade Federal de São Carlos, 13565-905, São Carlos, Brazil
| | - Felipe A La Porta
- Department of Chemistry, Universidade Tecnológica Federal do Paraná, 86036-370, Londrina, Brazil
| | - Lourdes Gracia
- Department of Physic and Analytical Chemistry, Universitat Jaume I, Campus Riu Sec, E-12071, Castellón, Spain
| | - Máximo S Li
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970, São Carlos, Brazil
| | - Juan Andrés
- Department of Physic and Analytical Chemistry, Universitat Jaume I, Campus Riu Sec, E-12071, Castellón, Spain
| | - Luís P S Santos
- Department of Chemistry, INCTMN, Instituto Federal do Maranhão, Monte Castelo, 65030-005, São Luís, Brazil
| | - Elson Longo
- CDMF, INCTMN, Instituto de Química, Universidade Estadual Paulista, Araraquara, 14801-907, Brazil
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15
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Abstract
This review highlights various facet tailoring arts in perovskite structure oxides.
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Affiliation(s)
- Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Long Yuan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- PR China
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16
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Dhahri K, Bejar M, Dhahri E, Soares M, Graça M, Sousa M, Valente M. Blue-green photoluminescence in BaZrO 3−δ powders. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.07.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Li C, Sun Y, Ma X, Yao W, Hu Y, Wang Y, Wang Y. Ultralong triclinic-Ba2V2O7 nanowires: microwave radiation-assisted CTAB surfactant synthesis, the novel growth mechanism and optical activity performances. RSC Adv 2014. [DOI: 10.1039/c3ra47259k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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18
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da Silva LF, Avansi W, Andrés J, Ribeiro C, Moreira ML, Longo E, Mastelaro VR. Long-range and short-range structures of cube-like shape SrTiO3 powders: microwave-assisted hydrothermal synthesis and photocatalytic activity. Phys Chem Chem Phys 2013; 15:12386-93. [PMID: 23787693 DOI: 10.1039/c3cp50643f] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein a detailed study on the influence of microwave-assisted hydrothermal (MAH) treatment time on both long and short range structures around Ti atoms of SrTiO3 powders. Few studies have been carried out on short-order structural properties as well as the relationship between the local order and the SrTiO3 photocatalytic properties. We use X-ray diffraction to determine the long-range structure, while the local environment around the Ti atom is probed with X-ray absorption spectroscopy and the vibration frequencies are investigated by Raman spectroscopy. The faster crystallization of SrTiO3 powders provided by the MAH system resulted in large distortions of Ti-O bond lengths which remain unchanged even for a longer MAH treatment time. Despite the long-range structure being associated with ideal TiO6 clusters, X-ray absorption spectroscopy measurements identified the presence of undercoordinated TiO5 clusters. Compared with the reference bulk SrTiO3, the hierarchical SrTiO3 cube-like shape showed enhanced photocatalytic activity, which was associated with the presence of these TiO5 clusters. Field emission scanning electron microscopy (FE-SEM) revealed that the superstructures based on a cube-like shape are formed by an assembly process, becoming well defined as a function of MAH treatment time.
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Affiliation(s)
- Luís F da Silva
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense, 400, 13566-590, São Carlos, SP, Brazil.
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Mulinari TA, La Porta FA, Andrés J, Cilense M, Varela JA, Longo E. Microwave-hydrothermal synthesis of single-crystalline Co3O4 spinel nanocubes. CrystEngComm 2013. [DOI: 10.1039/c3ce41215f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cavalcante L, Sczancoski J, Siu Li M, Longo E, Varela J. β-ZnMoO4 microcrystals synthesized by the surfactant-assisted hydrothermal method: Growth process and photoluminescence properties. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2011.12.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Tian Y, Chen B, Hua R, Yu N, Liu B, Sun J, Cheng L, Zhong H, Li X, Zhang J, Tian B, Zhong H. Self-assembled 3D flower-shaped NaY(WO4)2:Eu3+ microarchitectures: Microwave-assisted hydrothermal synthesis, growth mechanism and luminescent properties. CrystEngComm 2012. [DOI: 10.1039/c1ce06232h] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Order–disorder degree of self-assembled clusters: Influence on photoluminescence emission and morphology of BaxSr1−xTiO3 nanocrystals. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.08.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Moreira ML, Andrés J, Mastelaro VR, Varela JA, Longo E. On the reversed crystal growth of BaZrO3 decaoctahedron: shape evolution and mechanism. CrystEngComm 2011. [DOI: 10.1039/c1ce05361b] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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