Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles

Cavalu, Simona; Vicas, Simona; Costea, Traian; Fritea, Luminita; Copolovici, Dana; Laslo, Vasile

Simona Cavalu, Simona Vicas, Traian Costea, Luminita Fritea, Dana Copolovici, Vasile Laslo

Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles

Abstract:

Selenium-doped titania nanoparticles were prepared and characterized from physico-chemical and morphological point of view, with the aim possible applications in photocatalysis. DLS measurement indicated that TiO2 particles presents two different components: the first one, with low concentration and maximum size distribution at about 20 nm, and second one, with high concentration and size distribution ranging from 40 to 250 nm (maximum at 100 nm). After doping procedure and thermal treatment at 800 ͦ C, the size distribution reveals the formation of nanoparticles with wide range of diameters, from 20 nm to 500 nm, with good stability, as demonstrated by Zeta potential values: -19 mV for TiO2 and -25 mV for Se/TiO2 particles. Ti-O-Ti and Se-O vibrational modes were identified in ATR FTIR spectra. As a consequence of thermal treatment at 800 ͦ C, morphological changes of titania particles from nanorodes to nanowires were observed. The XRD spectrum of TiO2 starting material shows the typical crystalline pattern of anatase (tetragonal), in good agreement with the standard diffraction data, while a mixture of anatase and rutile (tetragonal) was obtained after the annealing process. The results of photocatalytic activity test demonstrated that both TiO2 and Se-doped TiO2 nanoparticles can effectively decompose methylene blue under the visible light irradiation, but with Se doping, the photocatalytic capability is significantly improved.

Keywords:
selenium; titania; nanoparticles; SEM; DLS; FTIR; photocatalysis

Issue: 2020, Volume 71, Issue 1

Pages: 22-27

Publication date: 2020/2/7

https://doi.org/10.37358/RC.20.1.7806

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
CAVALU, S., VICAS, S., COSTEA, T., FRITEA, L., COPOLOVICI, D., LASLO, V., Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles, Rev. Chim., 71(1), 2020, 22-27.

Vancouver
Cavalu S, Vicas S, Costea T, Fritea L, Copolovici D, Laslo V. Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles. Rev. Chim.[internet]. 2020 Jan;71(1):22-27. Available from: https://doi.org/10.37358/RC.20.1.7806

APA 6th edition
Cavalu, S., Vicas, S., Costea, T., Fritea, L., Copolovici, D. & Laslo, V. (2020). Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles. Revista de Chimie, 71(1), 22-27. https://doi.org/10.37358/RC.20.1.7806

Harvard
Cavalu, S., Vicas, S., Costea, T., Fritea, L., Copolovici, D., Laslo, V. (2020). 'Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles', Revista de Chimie, 71(1), pp. 22-27. https://doi.org/10.37358/RC.20.1.7806

IEEE
S. Cavalu, S. Vicas, T. Costea, L. Fritea, D. Copolovici, V. Laslo, "Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles". Revista de Chimie, vol. 71, no. 1, pp. 22-27, 2020. [online]. https://doi.org/10.37358/RC.20.1.7806

Text
Simona Cavalu, Simona Vicas, Traian Costea, Luminita Fritea, Dana Copolovici, Vasile Laslo,
Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles,
Revista de Chimie,
Volume 71, Issue 1,
2020,
Pages 22-27,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.1.7806.
(https://revistadechimie.ro/Articles.asp?ID=7806)
Keywords: selenium; titania; nanoparticles; SEM; DLS; FTIR; photocatalysis

RIS
TY - JOUR
T1 - Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles
A1 - Cavalu, Simona
A2 - Vicas, Simona
A3 - Costea, Traian
A4 - Fritea, Luminita
A5 - Copolovici, Dana
A6 - Laslo, Vasile
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 1
SP - 22
EP - 27
UR - https://doi.org/10.37358/RC.20.1.7806
KW - selenium
KW - titania
KW - nanoparticles
KW - SEM
KW - DLS
KW - FTIR
KW - photocatalysis
ER -

BibTex
@article{RevCh2020P22,
author = {Cavalu Simona and Vicas Simona and Costea Traian and Fritea Luminita and Copolovici Dana and Laslo Vasile},
title = {Preparation, Physico-chemical Characterization and Photocatalytic Properties of Se Doped TiO2 Nanoparticles},
journal = {Revista de Chimie},
volume = {71},
number = {1},
pages = {22-27},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.1.7806},
url = {https://revistadechimie.ro/Articles.asp?ID=7806}
}

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