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Boytsova O, Zhukova I, Tatarenko A, Shatalova T, Beiltiukov A, Eliseev A, Sadovnikov A. The Anatase-to-Rutile Phase Transition in Highly Oriented Nanoparticles Array of Titania with Photocatalytic Response Changes. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4418. [PMID: 36558271 PMCID: PMC9785057 DOI: 10.3390/nano12244418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/30/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
An array of highly oriented anatase nanoparticles was successfully prepared from NH4TiOF3 with the assistance of polyetheleneglycol-400 at 450 °C. The study showed the stability of obtained layered TiO2-anatase close to 1200 °C. This research confirmed for the first time that the transition of mesocrystalline anatase to the rutile phase occurs between 1000 °C and 1200 °C, which is more than 400 °C higher than the transition of bulk TiO2 due to the used precursor. A small quantity of K-phase nanowhiskers, which issued after 800 °C in the composite based on TiO2, stimulated a fourfold increase in photocatalytic performance. This study offers a new approach to the construction and preparation of effective nanocrystalline photocatalyst.
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Affiliation(s)
- Olga Boytsova
- Department of Materials Science, Lomonosov Moscow State University, Building 73, Leninskie Gory 1, Moscow 119991, Russia
- Department of Chemistry, Lomonosov Moscow State University, Building 3, Leninskie Gory 1, Moscow 119991, Russia
| | - Irina Zhukova
- Department of Materials Science, Lomonosov Moscow State University, Building 73, Leninskie Gory 1, Moscow 119991, Russia
| | - Artem Tatarenko
- Department of Materials Science, Lomonosov Moscow State University, Building 73, Leninskie Gory 1, Moscow 119991, Russia
| | - Tatiana Shatalova
- Department of Chemistry, Lomonosov Moscow State University, Building 3, Leninskie Gory 1, Moscow 119991, Russia
| | - Artemii Beiltiukov
- Udmurt Federal Research Center of UB RAS, T. Baramzina Str. 34, Izhevsk 426067, Russia
| | - Andrei Eliseev
- Department of Materials Science, Lomonosov Moscow State University, Building 73, Leninskie Gory 1, Moscow 119991, Russia
| | - Alexey Sadovnikov
- Kurnakov Institute of General and Inorganic Chemistry RAS, Leninskii Prosp. 31, Moscow 119071, Russia
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii Prosp. 29, Moscow 119991, Russia
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Photocatalytic activity of K2Ti6O13/TiO2 nanocomposite prepared using water extract of wood ash from waste for degradation of dye pollutants. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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