Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon

Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been syn...
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Autor*in:	Elizaveta Konstantinova [verfasserIn] Timofey Savchuk [verfasserIn] Olga Pinchuk [verfasserIn] Ekaterina Kytina [verfasserIn] Elizaveta Ivanova [verfasserIn] Lidiya Volkova [verfasserIn] Vladimir Zaitsev [verfasserIn] Alexander Pavlikov [verfasserIn] Elena Elizarova [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	organic molecules photodegradation TiO nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions

Übergeordnetes Werk:	In: Molecules - MDPI AG, 2003, 27(2022), 22, p 8080
Übergeordnetes Werk:	volume:27 ; year:2022 ; number:22, p 8080

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/molecules27228080

Katalog-ID:	DOAJ017837510

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allfields	10.3390/molecules27228080 doi (DE-627)DOAJ017837510 (DE-599)DOAJaf50d0c9164a4fc1a0e4b72101745c1a DE-627 ger DE-627 rakwb eng QD241-441 Elizaveta Konstantinova verfasserin aut Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts. organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions Organic chemistry Timofey Savchuk verfasserin aut Olga Pinchuk verfasserin aut Ekaterina Kytina verfasserin aut Elizaveta Ivanova verfasserin aut Lidiya Volkova verfasserin aut Vladimir Zaitsev verfasserin aut Alexander Pavlikov verfasserin aut Elena Elizarova verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8080 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8080 https://doi.org/10.3390/molecules27228080 kostenfrei https://doaj.org/article/af50d0c9164a4fc1a0e4b72101745c1a kostenfrei https://www.mdpi.com/1420-3049/27/22/8080 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8080
spelling	10.3390/molecules27228080 doi (DE-627)DOAJ017837510 (DE-599)DOAJaf50d0c9164a4fc1a0e4b72101745c1a DE-627 ger DE-627 rakwb eng QD241-441 Elizaveta Konstantinova verfasserin aut Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts. organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions Organic chemistry Timofey Savchuk verfasserin aut Olga Pinchuk verfasserin aut Ekaterina Kytina verfasserin aut Elizaveta Ivanova verfasserin aut Lidiya Volkova verfasserin aut Vladimir Zaitsev verfasserin aut Alexander Pavlikov verfasserin aut Elena Elizarova verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8080 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8080 https://doi.org/10.3390/molecules27228080 kostenfrei https://doaj.org/article/af50d0c9164a4fc1a0e4b72101745c1a kostenfrei https://www.mdpi.com/1420-3049/27/22/8080 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8080
allfields_unstemmed	10.3390/molecules27228080 doi (DE-627)DOAJ017837510 (DE-599)DOAJaf50d0c9164a4fc1a0e4b72101745c1a DE-627 ger DE-627 rakwb eng QD241-441 Elizaveta Konstantinova verfasserin aut Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts. organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions Organic chemistry Timofey Savchuk verfasserin aut Olga Pinchuk verfasserin aut Ekaterina Kytina verfasserin aut Elizaveta Ivanova verfasserin aut Lidiya Volkova verfasserin aut Vladimir Zaitsev verfasserin aut Alexander Pavlikov verfasserin aut Elena Elizarova verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8080 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8080 https://doi.org/10.3390/molecules27228080 kostenfrei https://doaj.org/article/af50d0c9164a4fc1a0e4b72101745c1a kostenfrei https://www.mdpi.com/1420-3049/27/22/8080 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8080
allfieldsGer	10.3390/molecules27228080 doi (DE-627)DOAJ017837510 (DE-599)DOAJaf50d0c9164a4fc1a0e4b72101745c1a DE-627 ger DE-627 rakwb eng QD241-441 Elizaveta Konstantinova verfasserin aut Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts. organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions Organic chemistry Timofey Savchuk verfasserin aut Olga Pinchuk verfasserin aut Ekaterina Kytina verfasserin aut Elizaveta Ivanova verfasserin aut Lidiya Volkova verfasserin aut Vladimir Zaitsev verfasserin aut Alexander Pavlikov verfasserin aut Elena Elizarova verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8080 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8080 https://doi.org/10.3390/molecules27228080 kostenfrei https://doaj.org/article/af50d0c9164a4fc1a0e4b72101745c1a kostenfrei https://www.mdpi.com/1420-3049/27/22/8080 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8080
allfieldsSound	10.3390/molecules27228080 doi (DE-627)DOAJ017837510 (DE-599)DOAJaf50d0c9164a4fc1a0e4b72101745c1a DE-627 ger DE-627 rakwb eng QD241-441 Elizaveta Konstantinova verfasserin aut Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts. organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions Organic chemistry Timofey Savchuk verfasserin aut Olga Pinchuk verfasserin aut Ekaterina Kytina verfasserin aut Elizaveta Ivanova verfasserin aut Lidiya Volkova verfasserin aut Vladimir Zaitsev verfasserin aut Alexander Pavlikov verfasserin aut Elena Elizarova verfasserin aut In Molecules MDPI AG, 2003 27(2022), 22, p 8080 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:27 year:2022 number:22, p 8080 https://doi.org/10.3390/molecules27228080 kostenfrei https://doaj.org/article/af50d0c9164a4fc1a0e4b72101745c1a kostenfrei https://www.mdpi.com/1420-3049/27/22/8080 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 27 2022 22, p 8080
language	English
source	In Molecules 27(2022), 22, p 8080 volume:27 year:2022 number:22, p 8080
sourceStr	In Molecules 27(2022), 22, p 8080 volume:27 year:2022 number:22, p 8080
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions Organic chemistry
isfreeaccess_bool	true
container_title	Molecules
authorswithroles_txt_mv	Elizaveta Konstantinova @@aut@@ Timofey Savchuk @@aut@@ Olga Pinchuk @@aut@@ Ekaterina Kytina @@aut@@ Elizaveta Ivanova @@aut@@ Lidiya Volkova @@aut@@ Vladimir Zaitsev @@aut@@ Alexander Pavlikov @@aut@@ Elena Elizarova @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	311313132
id	DOAJ017837510
language_de	englisch
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callnumber-first	Q - Science
author	Elizaveta Konstantinova
spellingShingle	Elizaveta Konstantinova misc QD241-441 misc organic molecules photodegradation misc TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O misc nanoheterostructures misc photocatalytic activity misc molecular oxygen anion radicals misc copper ions misc Organic chemistry Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon
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topic_title	QD241-441 Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon organic molecules photodegradation TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures photocatalytic activity molecular oxygen anion radicals copper ions
topic	misc QD241-441 misc organic molecules photodegradation misc TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O misc nanoheterostructures misc photocatalytic activity misc molecular oxygen anion radicals misc copper ions misc Organic chemistry
topic_unstemmed	misc QD241-441 misc organic molecules photodegradation misc TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O misc nanoheterostructures misc photocatalytic activity misc molecular oxygen anion radicals misc copper ions misc Organic chemistry
topic_browse	misc QD241-441 misc organic molecules photodegradation misc TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O misc nanoheterostructures misc photocatalytic activity misc molecular oxygen anion radicals misc copper ions misc Organic chemistry
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hierarchy_parent_title	Molecules
hierarchy_parent_id	311313132
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title	Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon
ctrlnum	(DE-627)DOAJ017837510 (DE-599)DOAJaf50d0c9164a4fc1a0e4b72101745c1a
title_full	Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon
author_sort	Elizaveta Konstantinova
journal	Molecules
journalStr	Molecules
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author_browse	Elizaveta Konstantinova Timofey Savchuk Olga Pinchuk Ekaterina Kytina Elizaveta Ivanova Lidiya Volkova Vladimir Zaitsev Alexander Pavlikov Elena Elizarova
container_volume	27
class	QD241-441
format_se	Elektronische Aufsätze
author-letter	Elizaveta Konstantinova
doi_str_mv	10.3390/molecules27228080
author2-role	verfasserin
title_sort	photoelectron properties and organic molecules photodegradation activity of titania nanotubes with cu<sub<x</sub<o nanoparticles heat treated in air and argon
callnumber	QD241-441
title_auth	Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon
abstract	Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts.
abstractGer	Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts.
abstract_unstemmed	Titania is very famous photocatalyst for decomposition of organic pollutants. Its photocatalytic properties significantly depend on the morphology and chemical composition of the samples. Herein, the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O nanoheterostructures have been synthesized and the effect of heat treatment performed in molecular atmospheres of air and argon on their photoelectrochemical and photocatalytic properties has been studied. The prepared samples have a higher reaction rate constant compared to TiO<sub<2</sub< nanotubes in the decomposition reaction of methylene blue molecules. It is established that in argon treated nanoheterostructures, the copper oxide is present in two phases, CuO and Cu<sub<2</sub<O, while in air treated ones there is only CuO. In the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples, Cu<sup<2+</sup< ions and molecular O<sub<2</sub<<sup<−</sup< radicals were detected while in TiO<sub<2</sub< nanotubes only carbon dangling bond defects are present. The dynamics of O<sub<2</sub<<sup<−</sup< radicals under illumination are discussed. It was shown that the TiO<sub<2</sub< nanotubes do not exhibit photocatalytic activity under visible light. The mechanism of the photocatalytic reaction on the surface of the TiO<sub<2</sub< nanotubes/Cu<sub<x</sub<O samples was proposed. It is assumed that a photocatalytic decomposition of organic molecules under visible light at the surface of the nanoheterostructures under investigation is realized mainly by the reaction of these molecules with photogenerated O<sub<2</sub<<sup<−</sup< radicals. The results obtained are completely original and indicate the high promise of the prepared photocatalysts.
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title_short	Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon
url	https://doi.org/10.3390/molecules27228080 https://doaj.org/article/af50d0c9164a4fc1a0e4b72101745c1a https://www.mdpi.com/1420-3049/27/22/8080 https://doaj.org/toc/1420-3049
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Photoelectron Properties and Organic Molecules Photodegradation Activity of Titania Nanotubes with Cu<sub<x</sub<O Nanoparticles Heat Treated in Air and Argon

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