Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/941
Title: Photocatalytic activity and dielectric properties of hydrothermally derived tetragonal BaTiO3 nanoparticles using TiO2 nanofibers
Authors: Küçük, Öznur
Teber, Seda
Kaya, İsmail Cihan
Akyıldız, Hasan
Kalem, Volkan
Keywords: Electrospinning
Hydrothermal
Barium Titanate
Dielectric Materials/Properties
Photocatalysis
Nanotube Arrays Fabrication
Barium-Titanate
Phase-Transition
Perovskite
Ferroelectricity
Absorption
Dependence
Mechanism
Ag
Issue Date: 2018
Publisher: ELSEVIER SCIENCE SA
Abstract: Tetragonal BaTiO3 nanoparticles have been hydrothermally synthesized using the electrospun TiO2 nanofibers as the Ti-source. Microstructural and compositional analyses have been carried out using XRD, SEM, TEM, XPS, and Raman spectroscopy. Characterization studies confirmed that the BaTiO3 nanoparticles had a tetragonal structure with an average particle size of 100 nm. Photocatalytic activities of the nanoparticles were investigated via the decolorization of methylene blue dye aqueous solutions under visible light and UV-A irradiations. The degradation efficiency reached to 13 and 35% after exposing to light for 60 min with visible and UV-sources, respectively. Effect of sintering temperatures on the dielectric properties was also investigated. Among all the sintering temperatures employed, 1473 K was the optimum sintering temperature for these ceramics in terms of high relative density (95.3%), high dielectric constant (3162 at 1 MHz), and low loss tangent (15 x 10(-3) at 1 MHz). Experimental results showed that electrospun TiO2 fibers can be used as a precursor template to produce nano-scale BaTiO3 particles which are suitable for various applications such as photocatalysis and capacitors. (C) 2018 Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.jallcom.2018.06.165
https://hdl.handle.net/20.500.13091/941
ISSN: 0925-8388
1873-4669
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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