Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation
Thin-film nanocrystalline hematite electrodes were fabricated by electrochemical deposition and loaded with electrodeposited zinc oxide in various amounts. Under visible light illumination, these electrodes demonstrate high activity in the photoelectrochemical degradation of methanol, ethylene glyco...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/18/14046 |
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| author | Vitali A. Grinberg Victor V. Emets Natalia A. Mayorova Aleksey A. Averin Andrei A. Shiryaev |
| author_facet | Vitali A. Grinberg Victor V. Emets Natalia A. Mayorova Aleksey A. Averin Andrei A. Shiryaev |
| author_sort | Vitali A. Grinberg |
| collection | DOAJ |
| description | Thin-film nanocrystalline hematite electrodes were fabricated by electrochemical deposition and loaded with electrodeposited zinc oxide in various amounts. Under visible light illumination, these electrodes demonstrate high activity in the photoelectrochemical degradation of methanol, ethylene glycol and, in particular, glycerol. Results of intensity-modulated photocurrent spectroscopy show that the photoelectrocatalysis efficiency is explained by the suppression of the electron–hole pair recombination and an increase in the rate of photo-induced charge transfer. Thus, zinc oxide can be considered an effective modifying additive for hematite photoanodes. |
| first_indexed | 2024-03-10T22:40:06Z |
| format | Article |
| id | doaj.art-33813bbc4d5a4adea5f007d8789a5a44 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T22:40:06Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-33813bbc4d5a4adea5f007d8789a5a442023-11-19T11:07:05ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-09-0124181404610.3390/ijms241814046Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol DegradationVitali A. Grinberg0Victor V. Emets1Natalia A. Mayorova2Aleksey A. Averin3Andrei A. Shiryaev4Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, Building 4, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, Building 4, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, Building 4, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, Building 4, 119071 Moscow, RussiaFrumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, Building 4, 119071 Moscow, RussiaThin-film nanocrystalline hematite electrodes were fabricated by electrochemical deposition and loaded with electrodeposited zinc oxide in various amounts. Under visible light illumination, these electrodes demonstrate high activity in the photoelectrochemical degradation of methanol, ethylene glycol and, in particular, glycerol. Results of intensity-modulated photocurrent spectroscopy show that the photoelectrocatalysis efficiency is explained by the suppression of the electron–hole pair recombination and an increase in the rate of photo-induced charge transfer. Thus, zinc oxide can be considered an effective modifying additive for hematite photoanodes.https://www.mdpi.com/1422-0067/24/18/14046hematite photoanodezincoxideelectrochemical depositionphotoelectrocatalytic oxidationmethanolethylene glycol |
| spellingShingle | Vitali A. Grinberg Victor V. Emets Natalia A. Mayorova Aleksey A. Averin Andrei A. Shiryaev Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation International Journal of Molecular Sciences hematite photoanode zincoxide electrochemical deposition photoelectrocatalytic oxidation methanol ethylene glycol |
| title | Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation |
| title_full | Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation |
| title_fullStr | Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation |
| title_full_unstemmed | Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation |
| title_short | Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation |
| title_sort | photoelectrocatalytic activity of zno modified hematite films in the reaction of alcohol degradation |
| topic | hematite photoanode zincoxide electrochemical deposition photoelectrocatalytic oxidation methanol ethylene glycol |
| url | https://www.mdpi.com/1422-0067/24/18/14046 |
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