Registration Number
0221U100456,
0120U101183
, R & D reports
Title
Development of innovative photocatalytic nanostructured materials based on ZnO and TiO2
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Head
Yevtushenko Arsenii I., Кандидат фізико-математичних наук
Registration Date
05-01-2021
Organization
Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine
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The processes of silver and magnesium doped ZnO nanostructures by APMOCVD method have been studied. It is established that silver doping of ZnO nanostructures significantly increases the ratio of the spectral integral intensity of the near-band edge emission to the deep-level one, which makes them promising for use as effective photocatalytic materials. It was found that the introduction of an isoelectronic Mg impurity in ZnO leads to an increase in the size of nanocrystallites and to improvement in photoluminescence due to the geteration of point defects in ZnO. Composite nanostructured ZnO-Ho films were grown by electron beam deposition. It is shown that the introduction of holmium leads to an increase in the lifetime of current carriers in ZnO films, which is favorable for improving their photocatalytic properties. A CVD method for the synthesis of C3N4Ox / TiO2 anatase nanopowder composite as well as chemical polymerization of C3N4Ox / polyaniline and TiO2 (anatase) / polyaniline composites were developed. Their surface structure and optical properties have been studied. It is shown that the combination of C3N4Ox with nanoparticles of TiO2 (anatase) and nanoparticles of C3N4Ox and TiO2 (anatase) with polyaniline allows to: (i) significantly increase their absorption coefficient in the visible range of the radiation spectrum, (ii) to affect predicted on the position of the absorption spectrum, which is promising to increase their photocatalytic efficiency.
Product Description
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Baibara Olexey E.
Batayev Yuriy М
Bondarenko Maryna E
Bugaeva Marina E.
Gubareni Nadiya I
Dmitriev Olexander I
Zagornyi Maksym M.
Karavayeva Valentina M
Karpyna Vitalii A
Kasumov Anatoliy M
Korotkov Konstantin
Koriak Oksana S
Lobunetsʹ Tetiana F.
Myroniuk Denys V.
Myroniuk Liliya A
Olifan Olena I
Patsui Viktor I
Petrosyan Larisa I.
Radchenko Mikhail V.
Tyschenko Nadiya I.
Tomila Tamara V.
Fiyalka Lyudmyla I
Frolova Mariya O
Khyzhun Oleg Yu
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2021-01-05
