Oxygen vacancy induced photoluminescence properties and enhanced photocatalytic activity of ferromagnetic ZrO2 nanostructures on methylene blue dye under ultra-violet radiation
Publication type: Journal Article
Publication date: 2015-09-01
scimago Q1
wos Q1
SJR: 1.192
CiteScore: 11.8
Impact factor: 6.3
ISSN: 09258388, 18734669
Materials Chemistry
Metals and Alloys
Mechanical Engineering
Mechanics of Materials
Abstract
Room temperature ferromagnetic (RTFM) ZrO 2 nanostructures with tetragonal (t-ZrO 2 ) and monoclinic (m-ZrO 2 ) phases were synthesized by sol–gel method. The photoluminescence (PL) feature of the synthesized samples was investigated using 300 nm excitation wavelength. The decrease of saturation magnetization (Ms) and intensity of emission band at higher calcinations temperature is attributed to the reduction of density of oxygen vacancies in the ZrO 2 matrix. The variation of Ms with calcinations temperature follows the same trend as intensity of emission band varies. It further confirms that the presence of RTFM and decrease in emission band intensity is caused due change in density of oxygen vacancies with calcinations temperature. The photocatalytic activity of ZrO 2 nanostructures has been investigated on methylene blue (MB) dye as function of particle size under ultra-violet (UV) radiation with 365 nm wavelength. The ZrO 2 nanostructures with smaller particle size are found to be efficient for photodegradation of MB dye. Oxygen vacancies are found to be the main cause for enhanced photocatalytic activity of ZrO 2 nanostructures.
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127
Total citations:
127
Citations from 2025:
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(7.93%)
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Kumar S., Ojha A. K. Oxygen vacancy induced photoluminescence properties and enhanced photocatalytic activity of ferromagnetic ZrO2 nanostructures on methylene blue dye under ultra-violet radiation // Journal of Alloys and Compounds. 2015. Vol. 644. pp. 654-662.
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Kumar S., Ojha A. K. Oxygen vacancy induced photoluminescence properties and enhanced photocatalytic activity of ferromagnetic ZrO2 nanostructures on methylene blue dye under ultra-violet radiation // Journal of Alloys and Compounds. 2015. Vol. 644. pp. 654-662.
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TY - JOUR
DO - 10.1016/j.jallcom.2015.04.183
UR - https://doi.org/10.1016/j.jallcom.2015.04.183
TI - Oxygen vacancy induced photoluminescence properties and enhanced photocatalytic activity of ferromagnetic ZrO2 nanostructures on methylene blue dye under ultra-violet radiation
T2 - Journal of Alloys and Compounds
AU - Kumar, Sachin
AU - Ojha, Animesh K
PY - 2015
DA - 2015/09/01
PB - Elsevier
SP - 654-662
VL - 644
SN - 0925-8388
SN - 1873-4669
ER -
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@article{2015_Kumar,
author = {Sachin Kumar and Animesh K Ojha},
title = {Oxygen vacancy induced photoluminescence properties and enhanced photocatalytic activity of ferromagnetic ZrO2 nanostructures on methylene blue dye under ultra-violet radiation},
journal = {Journal of Alloys and Compounds},
year = {2015},
volume = {644},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016/j.jallcom.2015.04.183},
pages = {654--662},
doi = {10.1016/j.jallcom.2015.04.183}
}