Publication detail

Atomic Layer Deposition of Mixed-Layered Aurivillius Phase on TiO2 Nanotubes: Synthesis, Characterization and Photoelectrocatalytic Properties

ORUDZHEV, F. RAMAZANOV, S. SOBOLA, D. ISAEV, A. WANG, C. MAGOMEDOVA, A. KADIEV, M. KAVIYARASU, K.

Original Title

Atomic Layer Deposition of Mixed-Layered Aurivillius Phase on TiO2 Nanotubes: Synthesis, Characterization and Photoelectrocatalytic Properties

Type

journal article in Web of Science

Language

English

Original Abstract

For the first time, one-dimensional phase-modulated structures consisting of two different layered Aurivillius phases with alternating five and six perovskite-like layers were obtained by atomic layer deposition (ALD) on the surface of TiO2 nanotubes (Nt). It was shown that the use of vertically oriented TiO2 Nt as the substrate and the ALD technology of a two-layer Bi2O3-FeOx sandwich-structure make it possible to obtain a layered structure due to self-organization during annealing. A detailed study by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the coating is conformal. Raman spectroscopic analysis indicated the structure of the layered Aurivillius phases. Transient photocurrent responses under Ultraviolet–Visible (UV-Vis) light irradiation show that the ALD coating benefits the efficiency of photon excitation of electrons. The results of the photoelectrocatalytic experiments (PEC) with methyl orange degradation as a model demonstrate the significant potential of the synthesized structure as a photocatalyst. Photoluminescent measurement showed a decrease in the probability of recombination of photogenerated electron–hole pairs for ALD-coated TiO2 Nt, which demonstrates the high potential of these structures for use in photocatalytic and photoelectrochemical applications

Keywords

atomic layer deposition; photocatalysis; photoelectrocatalysis; TiO2 nanotubes; Aurivillius phase; layered perovskite

Authors

ORUDZHEV, F.; RAMAZANOV, S.; SOBOLA, D.; ISAEV, A.; WANG, C.; MAGOMEDOVA, A.; KADIEV, M.; KAVIYARASU, K.

Released

2. 11. 2020

Publisher

MDPI

ISBN

2079-4991

Periodical

Nanomaterials

Year of study

10

Number

11

State

Swiss Confederation

Pages from

1

Pages to

16

Pages count

16

URL

https://www.mdpi.com/2079-4991/10/11/2183

Full text in the Digital Library

http://hdl.handle.net/11012/195832

BibTex

@article{BUT166393,
  author="Farid {Orudzhev} and Shihgasan {Ramazanov} and Dinara {Sobola} and Abdulgalim {Isaev} and Chuanyi {Wang} and Asiyat {Magomedova} and Makhmud {Kadiev} and Kasinathan {Kaviyarasu}",
  title="Atomic Layer Deposition of Mixed-Layered Aurivillius Phase on TiO2 Nanotubes: Synthesis, Characterization and Photoelectrocatalytic Properties",
  journal="Nanomaterials",
  year="2020",
  volume="10",
  number="11",
  pages="1--16",
  doi="10.3390/nano10112183",
  issn="2079-4991",
  url="https://www.mdpi.com/2079-4991/10/11/2183"
}