1
|
Liu P, Makarova A, Freiberg K, Grinter DC, Sharma D, Ferrer P, Chuvenkova O, Deckert-Gaudig T, Turishchev S, Lippmann S, Sivakov V. Volcanic Eruption in the Nanoworld: Efficient Oxygen Exchange at the Si/SnO 2 Interface. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404508. [PMID: 39007250 DOI: 10.1002/smll.202404508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/02/2024] [Indexed: 07/16/2024]
Abstract
Here, a phenomenon of efficient oxygen exchange between a silicon surface and a thin layer of tin dioxide during chemical vapor deposition is presented, which leads to a unique Sn:SiO2 layer. Under thermodynamic conditions in the temperature range of 725-735 °C, the formation of nanostructures with volcano-like shapes in "active" and "dormant" states are observed. Extensive characterization techniques, such as electron microscopy, X-ray diffraction, synchrotron radiation-based X-ray photoelectron, and X-ray absorption near-edge structure spectroscopy, are applied to study the formation. The mechanism is related to the oxygen retraction between tin(IV) oxide and silicon surface, leading to the thermodynamically unstable tin(II)oxide, which is immediately disproportionate to metallic Sn and SnO2 localized in the SiO2 matrix. The diffusion of metallic tin in the amorphous silicon oxide matrix leads to larger agglomerates of nanoparticles, which is similar to the formation of a magma chamber during the natural volcanic processes followed by magma eruption, which here is associated with the formation of depressions on the surface filled with metallic tin particles. This new effect contributes a new approach to the formation of functional composites but also inspires the development of unique Sn:SiO2 nanostructures for diverse application scenarios, such as thermal energy storage.
Collapse
Affiliation(s)
- Poting Liu
- Leibniz Institute of Photonic Technology, Department Functional Interfaces, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Institute of Physical Chemistry, Helmholtzweg 4, 07743, Jena, Germany
| | - Anna Makarova
- Free University Berlin, Institute of Chemistry and Biochemistry, Physical Chemistry, Arnimallee 22, 14195, Berlin, Germany
| | - Katharina Freiberg
- Friedrich Schiller University Jena, Otto Schott Institute of Materials Research, Löbdergraben 32, 07743, Jena, Germany
| | - David C Grinter
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Divanshu Sharma
- Leibniz Institute of Photonic Technology, Department Functional Interfaces, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Institute of Physical Chemistry, Helmholtzweg 4, 07743, Jena, Germany
| | - Pilar Ferrer
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Olga Chuvenkova
- Voronezh State University, Physics Faculty, General Physics Department, Universitetskaya pl.1, Voronezh, 394018, Russian Federation
| | - Tanja Deckert-Gaudig
- Leibniz Institute of Photonic Technology, Department Functional Interfaces, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Institute of Physical Chemistry, Helmholtzweg 4, 07743, Jena, Germany
| | - Sergey Turishchev
- Voronezh State University, Physics Faculty, General Physics Department, Universitetskaya pl.1, Voronezh, 394018, Russian Federation
| | - Stephanie Lippmann
- Friedrich Schiller University Jena, Otto Schott Institute of Materials Research, Löbdergraben 32, 07743, Jena, Germany
- Friedrich Schiller University Jena, Institute of Applied Physics, Albert-Einstein Str. 15, 07745, Jena, Germany
| | - Vladimir Sivakov
- Leibniz Institute of Photonic Technology, Department Functional Interfaces, Albert-Einstein Str. 9, 07745, Jena, Germany
| |
Collapse
|
2
|
Sannino GV, Pecoraro A, Veneri PD, Pavone M, Muñoz-García AB. Effective prediction of SnO 2 conduction band edge potential: The key role of surface oxygen vacancies. J Comput Chem 2024. [PMID: 38795374 DOI: 10.1002/jcc.27434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/19/2024] [Accepted: 04/24/2024] [Indexed: 05/27/2024]
Abstract
Several theoretical studies at different levels of theory have attempted to calculate the absolute position of the SnO2 conduction band, whose knowledge is key for its effective application in optoelectronic devices such us, for example, perovskite solar cells. However, the predicted band edges fall outside the experimentally measured range. In this work, we introduce a computational scheme designed to calculate the conduction band minimum values of SnO2, yielding results aligned with experiments. Our analysis points out the fundamental role of encompassing surface oxygen vacancies to properly describe the electronic profile of this material. We explore the impact of both bridge and in-plane oxygen vacancy defects on the structural and electronic properties of SnO2, explaining from an atomistic perspective the experimental observables. The results underscore the importance of simulating both types of defects to accurately predict SnO2 features and provide new fundamental insights that can guide future studies concerning design and optimization of SnO2-based materials and functional interfaces.
Collapse
Affiliation(s)
| | - Adriana Pecoraro
- Department of Physics "E. Pancini", University of Naples Federico II, Naples, Italy
| | - Paola Delli Veneri
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Portici, Italy
| | - Michele Pavone
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | | |
Collapse
|
3
|
Jorgetto ADO, Boldrin Zanoni MV, Orlandi MO. Assessment of the superior photocatalytic properties of Sn 2+-containing SnO 2 microrods on the photodegradation of methyl orange. Sci Rep 2023; 13:14774. [PMID: 37679474 PMCID: PMC10485244 DOI: 10.1038/s41598-023-40659-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/16/2023] [Indexed: 09/09/2023] Open
Abstract
A microporous Sn2+-containing SnO2 material presenting microrod morphology and a surface area of 93.0 m2 g-1 was synthesized via a simple hydrothermal route. Sn2+ ions were detected in the interior of the material (15.8 at.%) after the corrosion of a sample through sputtering. The material's optical properties have demonstrated the absorption of a considerable fraction of visible light up to wavelengths of 671 nm, due to the presence of Sn2+ states in the material's band structure. The analysis of the internal crystalline structure of a single microrod was carried out with the aid of a focused ion beam microscope and indicated that the material is mesocrystalline down to nanoscale level. It was proposed that the Sn2+ ions occupy intergranular sites in the highly defective crystalline structure of the material and that Sn2+ states, as well as its relatively large surface area, are responsible for the material's superior photoactivity. The synthesized material was tested as a photocatalyst to decompose hazardous contaminants in water. The photocatalytic performance of the material was much higher than those of commercial TiO2 and SnO2 materials, decomposing nearly all methyl orange (an azo-dye model) content in water (10 mg L-1) in 6 min under UV irradiation for a photocatalyst dose of 5.33 g L-1. The photodegradation of methyl orange was also verified under visible light.
Collapse
Affiliation(s)
- Alexandre de Oliveira Jorgetto
- Department of Engineering, Physics and Mathematics, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14800-060, Brazil.
| | - Maria Valnice Boldrin Zanoni
- National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, São Paulo State University (UNESP), P.O. Box 355, Araraquara, SP, 14800-900, Brazil
| | - Marcelo Ornaghi Orlandi
- Department of Engineering, Physics and Mathematics, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14800-060, Brazil
| |
Collapse
|
4
|
Manseki K, Vafaei S, Scott L, Hampton K, Hattori N, Ohira K, Prochotsky K, Jala S, Sugiura T. 1D Narrow-Bandgap Tin Oxide Materials: Systematic High-Resolution TEM and Raman Analysis. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4539. [PMID: 37444853 DOI: 10.3390/ma16134539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/10/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
We demonstrate for the first time the structure identification and narrow-bandgap property of 1D hybridized SnO/SnO2 nanoparticles derived from the calcination of a single-source precursor, i.e., tin(II) oxalate. Systematic Raman analysis together with high-resolution TEM (HR-TEM) measurements of the tin oxide samples were carried out by changing the calcination temperatures. These data revealed the simultaneous formation of 1D SnO/SnO2 in the rod particles that grew in air. It was also found that Sn(II) can be introduced by changing the concentration of Sn(II) salt in the precursor synthesis and the maximum temperature in calcination. Particles measuring 20~30 nm were sintered to produce tin oxide nanorods including tin monoxide, SnO. Photoabsorption properties associated with the formation of the SnO/SnO2 nanocomposites were also investigated. Tauc plots indicate that the obtained tin oxide samples had a lower bandgap of 2.9~3.0 eV originating from SnO in addition to a higher bandgap of around 3.5~3.7 eV commonly observed for SnO2. Such 1D SnOx/SnO2 hybrids via tin oxalate synthesis with this optical property would benefit new materials design for photoenergy conversion systems, such as photocatalysts.
Collapse
Affiliation(s)
- Kazuhiro Manseki
- Graduate School of Natural Science and Technology, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Saeid Vafaei
- Mechanical Engineering Department, Bradley University, 1501 West Bradley Avenue, Peoria, IL 61625, USA
| | - Loren Scott
- Mechanical Engineering Department, Bradley University, 1501 West Bradley Avenue, Peoria, IL 61625, USA
| | - Katelyn Hampton
- Mechanical Engineering Department, Bradley University, 1501 West Bradley Avenue, Peoria, IL 61625, USA
| | - Nagisa Hattori
- Graduate School of Natural Science and Technology, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Kosuke Ohira
- Graduate School of Natural Science and Technology, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Kyle Prochotsky
- Mechanical Engineering Department, Bradley University, 1501 West Bradley Avenue, Peoria, IL 61625, USA
| | - Stephen Jala
- Industrial and Manufacturing Engineering and Technology Department, Bradley University, Peoria, IL 61625, USA
| | - Takashi Sugiura
- Graduate School of Natural Science and Technology, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| |
Collapse
|
5
|
Ren X, Xu Z, Zhang Z, Tang Z. Enhanced NO 2 Sensing Performance of ZnO-SnO 2 Heterojunction Derived from Metal-Organic Frameworks. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3726. [PMID: 36364502 PMCID: PMC9658193 DOI: 10.3390/nano12213726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Nitrogen dioxide (NO2) is the major reason for acid rain and respiratory illness in humans. Therefore, rapid, portable, and effective detection of NO2 is essential. Herein, a novel and simple method to construct a ZnO-SnO2 heterojunction is fabricated by pyrolysis of bimetallic metal organic frameworks. The sensitivity of ZnO-SnO2 heterojunction towards 0.2 ppm NO2 under 180 °C is 37, which is 3 times that of pure ZnO and SnO2. The construction of heterojunction speeds up the response-recovery process, and this kind of material exhibits lower detection limit. The construction of heterojunction can significantly improve the NO2 sensitivity. The selectivity, stability, and moisture resistance of ZnO-SnO2 heterojunction are carried out. This could enable the realization of highly selective and sensitive portable detection of NO2.
Collapse
|
6
|
Electrospun Porous Nanofibers: Pore−Forming Mechanisms and Applications for Photocatalytic Degradation of Organic Pollutants in Wastewater. Polymers (Basel) 2022; 14:polym14193990. [PMID: 36235934 PMCID: PMC9570808 DOI: 10.3390/polym14193990] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
Electrospun porous nanofibers have large specific surface areas and abundant active centers, which can effectively improve the properties of nanofibers. In the field of photocatalysis, electrospun porous nanofibers can increase the contact area of loaded photocatalytic particles with light, shorten the electron transfer path, and improve photocatalytic activity. In this paper, the main pore−forming mechanisms of electrospun porous nanofiber are summarized as breath figures, phase separation (vapor−induced phase separation, non−solvent−induced phase separation, and thermally induced phase separation) and post−processing (selective removal). Then, the application of electrospun porous nanofiber loading photocatalytic particles in the degradation of pollutants (such as organic, inorganic, and bacteria) in water is introduced, and its future development prospected. Although porous structures are beneficial in improving the photocatalytic performance of nanofibers, they reduce their mechanical properties. Therefore, strategies for improving the mechanical properties of electrospun porous nanofibers are also briefly discussed.
Collapse
|
7
|
Teng W, Lu Z, Li X, wang X, Liu J, Dong J, Nan D. High-performance flexible SnO2 anode boosted by an N-doped graphite coating layer for lithium-ion and sodium-ion batteries. Electrochem commun 2022. [DOI: 10.1016/j.elecom.2022.107345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
8
|
Fast and clean preparation of highly crystalline SnO2 nanoparticles incorporated in amorphous carbon, and its dye removal performance. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|