EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts
Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surfac...
Ausführliche Beschreibung
Autor*in: |
Konstantinova, Elizaveta A. [verfasserIn] |
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Artikel |
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Sprache: |
Englisch |
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2019 |
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Anmerkung: |
© Springer Science+Business Media, LLC, part of Springer Nature 2019 |
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Übergeordnetes Werk: |
Enthalten in: Catalysis letters - Springer US, 1988, 149(2019), 8 vom: 29. Mai, Seite 2256-2267 |
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Übergeordnetes Werk: |
volume:149 ; year:2019 ; number:8 ; day:29 ; month:05 ; pages:2256-2267 |
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DOI / URN: |
10.1007/s10562-019-02830-7 |
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Katalog-ID: |
OLC2040199802 |
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245 | 1 | 0 | |a EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts |
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520 | |a Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract | ||
650 | 4 | |a Photocatalysis | |
650 | 4 | |a Titanium dioxide | |
650 | 4 | |a Electron paramagnetic resonance | |
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10.1007/s10562-019-02830-7 doi (DE-627)OLC2040199802 (DE-He213)s10562-019-02830-7-p DE-627 ger DE-627 rakwb eng 540 660 VZ VA 2890 VZ rvk Konstantinova, Elizaveta A. verfasserin (orcid)0000-0003-4542-6999 aut EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2019 Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract Photocatalysis Titanium dioxide Electron paramagnetic resonance Heterostructures Charge accumulation Kokorin, Alexander I. (orcid)0000-0002-4905-3184 aut Minnekhanov, Anton A. (orcid)0000-0002-7685-8463 aut Sviridova, Tatyana V. aut Sviridov, Dmitry V. aut Enthalten in Catalysis letters Springer US, 1988 149(2019), 8 vom: 29. Mai, Seite 2256-2267 (DE-627)130436550 (DE-600)644234-1 (DE-576)025720724 1011-372X nnns volume:149 year:2019 number:8 day:29 month:05 pages:2256-2267 https://doi.org/10.1007/s10562-019-02830-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 VA 2890 AR 149 2019 8 29 05 2256-2267 |
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10.1007/s10562-019-02830-7 doi (DE-627)OLC2040199802 (DE-He213)s10562-019-02830-7-p DE-627 ger DE-627 rakwb eng 540 660 VZ VA 2890 VZ rvk Konstantinova, Elizaveta A. verfasserin (orcid)0000-0003-4542-6999 aut EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2019 Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract Photocatalysis Titanium dioxide Electron paramagnetic resonance Heterostructures Charge accumulation Kokorin, Alexander I. (orcid)0000-0002-4905-3184 aut Minnekhanov, Anton A. (orcid)0000-0002-7685-8463 aut Sviridova, Tatyana V. aut Sviridov, Dmitry V. aut Enthalten in Catalysis letters Springer US, 1988 149(2019), 8 vom: 29. Mai, Seite 2256-2267 (DE-627)130436550 (DE-600)644234-1 (DE-576)025720724 1011-372X nnns volume:149 year:2019 number:8 day:29 month:05 pages:2256-2267 https://doi.org/10.1007/s10562-019-02830-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 VA 2890 AR 149 2019 8 29 05 2256-2267 |
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10.1007/s10562-019-02830-7 doi (DE-627)OLC2040199802 (DE-He213)s10562-019-02830-7-p DE-627 ger DE-627 rakwb eng 540 660 VZ VA 2890 VZ rvk Konstantinova, Elizaveta A. verfasserin (orcid)0000-0003-4542-6999 aut EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2019 Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract Photocatalysis Titanium dioxide Electron paramagnetic resonance Heterostructures Charge accumulation Kokorin, Alexander I. (orcid)0000-0002-4905-3184 aut Minnekhanov, Anton A. (orcid)0000-0002-7685-8463 aut Sviridova, Tatyana V. aut Sviridov, Dmitry V. aut Enthalten in Catalysis letters Springer US, 1988 149(2019), 8 vom: 29. Mai, Seite 2256-2267 (DE-627)130436550 (DE-600)644234-1 (DE-576)025720724 1011-372X nnns volume:149 year:2019 number:8 day:29 month:05 pages:2256-2267 https://doi.org/10.1007/s10562-019-02830-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 VA 2890 AR 149 2019 8 29 05 2256-2267 |
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Konstantinova, Elizaveta A. ddc 540 rvk VA 2890 misc Photocatalysis misc Titanium dioxide misc Electron paramagnetic resonance misc Heterostructures misc Charge accumulation EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts |
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540 660 VZ VA 2890 VZ rvk EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts Photocatalysis Titanium dioxide Electron paramagnetic resonance Heterostructures Charge accumulation |
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EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts |
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EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts |
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Konstantinova, Elizaveta A. Kokorin, Alexander I. Minnekhanov, Anton A. Sviridova, Tatyana V. Sviridov, Dmitry V. |
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epr study of photoexcited charge carrier behavior in $ tio_{2} $/$ moo_{3} $ and $ tio_{2} $/$ moo_{3} $:$ v_{2} $$ o_{5} $ photocatalysts |
title_auth |
EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts |
abstract |
Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract © Springer Science+Business Media, LLC, part of Springer Nature 2019 |
abstractGer |
Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract © Springer Science+Business Media, LLC, part of Springer Nature 2019 |
abstract_unstemmed |
Abstract Metal oxide photocatalysts $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ have been investigated by electron paramagnetic resonance (EPR) spectroscopy under in situ light excitation. Structural identification of all paramagnetic centers (PCs) recorded, such as surface and lattice $ Ti^{3+} $ ions as well as $ Mo^{5+} $ and $ V^{4+} $ ions and nitrogen 14N atoms containing the unpaired electron (“$ N^{•} $-radicals”), have been performed. The temperature behavior of PCs in the range of 30–300 K and photoinduced changes of EPR spectra under light irradiation have been investigated. The validity of the Curie law was confirmed for the PCs of such composite photocatalysts. A new original method of detection of charge carrier separation and accumulation is suggested using EPR-technique. It is shown that $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ photocatalysts are capable to accumulate photogenerated charge providing fresh possibilities for practical applications in photocatalysis because these oxide heterostructures retaining oxidation activity for a long time (more than 5 h) under the dark conditions after illumination. Graphical Abstract © Springer Science+Business Media, LLC, part of Springer Nature 2019 |
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EPR Study of Photoexcited Charge Carrier Behavior in $ TiO_{2} $/$ MoO_{3} $ and $ TiO_{2} $/$ MoO_{3} $:$ V_{2} $$ O_{5} $ Photocatalysts |
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Kokorin, Alexander I. Minnekhanov, Anton A. Sviridova, Tatyana V. Sviridov, Dmitry V. |
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