RIMSI - Repository of Institute for Multidisciplinary Research
University of Belgrade - Institute for Multidisciplinary Research
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   RIMSI
  • Institut za multidisciplinarna istraživanja
  • Radovi istraživača / Researchers’ publications
  • View Item
  •   RIMSI
  • Institut za multidisciplinarna istraživanja
  • Radovi istraživača / Researchers’ publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite

Thumbnail
2022
bitstream_5223.pdf (3.070Mb)
Authors
Simović, Bojana
Milojković, Natalija
Žunić, Milan
Branković, Goran
Dapčević, Aleksandra
Conference object (Published version)
Metadata
Show full item record
Abstract
The structural, microstructural, optical and photocatalytic properties of hydrothermally obtained single-phase ZnO and CeO2@ZnO nanocomposites have been investigated by the XRPD, FESEM, HRTEM/SAED and UV-vis techniques. In order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%. The results showed that CeO2 with spherical crystallites of about 5 nm was distributed onto the ZnO surface, whose crystallites displayed a bimodal distribution, from nano- to microcrystallites. The morphology of ZnO particles varied from elongated nanograins to microrods that further formed a 3-D tie-like morphology which was disrupted by CeO2 adding. By degrading 90% of RO16 dye in 180 minutes, the composite containing 5 mol% of CeO2 showed approximately for 30% better photocatalytic efficiency comparing to other samples, although all the obtained powders have similar structural, microstructural... and optical characteristics. This is obviously the optimal ratio of these two phases, in which synergy of CeO2 adsorption and ZnO photocatalytic effect reaches its maximum due to reduced recombination rate and improved adsorption. The kinetic of RO16 degradation could be described by a pseudo-first order model.

Keywords:
CeO2/ZnO nanocomposites / Hydrothermal synthesis / Photocatalysis / Reactive orange 16 / Optimization of CeO2
Source:
6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,, 2022, 54-
Publisher:
  • Institut za multidisciplinarna istraživanja, Belgrade, Serbia
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-200053)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)

ISBN: 987-86-80109-23-7

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_rimsi_1990
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/1990
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - CONF
AU  - Simović, Bojana
AU  - Milojković, Natalija
AU  - Žunić, Milan
AU  - Branković, Goran
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1990
AB  - The structural, microstructural, optical and photocatalytic properties of
hydrothermally obtained single-phase ZnO and CeO2@ZnO nanocomposites have
been investigated by the XRPD, FESEM, HRTEM/SAED and UV-vis techniques. In
order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in
ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%.
The results showed that CeO2 with spherical crystallites of about 5 nm was
distributed onto the ZnO surface, whose crystallites displayed a bimodal
distribution, from nano- to microcrystallites. The morphology of ZnO particles
varied from elongated nanograins to microrods that further formed a 3-D tie-like
morphology which was disrupted by CeO2 adding. By degrading 90% of RO16 dye
in 180 minutes, the composite containing 5 mol% of CeO2 showed approximately
for 30% better photocatalytic efficiency comparing to other samples, although all the
obtained powders have similar structural, microstructural and optical characteristics.
This is obviously the optimal ratio of these two phases, in which synergy of CeO2
adsorption and ZnO photocatalytic effect reaches its maximum due to reduced
recombination rate and improved adsorption. The kinetic of RO16 degradation could
be described by a pseudo-first order model.
PB  - Institut za multidisciplinarna istraživanja, Belgrade, Serbia
C3  - 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,
T1  - Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite
SP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1990
ER  - 
@conference{
author = "Simović, Bojana and Milojković, Natalija and Žunić, Milan and Branković, Goran and Dapčević, Aleksandra",
year = "2022",
abstract = "The structural, microstructural, optical and photocatalytic properties of
hydrothermally obtained single-phase ZnO and CeO2@ZnO nanocomposites have
been investigated by the XRPD, FESEM, HRTEM/SAED and UV-vis techniques. In
order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in
ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%.
The results showed that CeO2 with spherical crystallites of about 5 nm was
distributed onto the ZnO surface, whose crystallites displayed a bimodal
distribution, from nano- to microcrystallites. The morphology of ZnO particles
varied from elongated nanograins to microrods that further formed a 3-D tie-like
morphology which was disrupted by CeO2 adding. By degrading 90% of RO16 dye
in 180 minutes, the composite containing 5 mol% of CeO2 showed approximately
for 30% better photocatalytic efficiency comparing to other samples, although all the
obtained powders have similar structural, microstructural and optical characteristics.
This is obviously the optimal ratio of these two phases, in which synergy of CeO2
adsorption and ZnO photocatalytic effect reaches its maximum due to reduced
recombination rate and improved adsorption. The kinetic of RO16 degradation could
be described by a pseudo-first order model.",
publisher = "Institut za multidisciplinarna istraživanja, Belgrade, Serbia",
journal = "6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,",
title = "Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite",
pages = "54",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1990"
}
Simović, B., Milojković, N., Žunić, M., Branković, G.,& Dapčević, A.. (2022). Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite. in 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,
Institut za multidisciplinarna istraživanja, Belgrade, Serbia., 54.
https://hdl.handle.net/21.15107/rcub_rimsi_1990
Simović B, Milojković N, Žunić M, Branković G, Dapčević A. Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite. in 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,. 2022;:54.
https://hdl.handle.net/21.15107/rcub_rimsi_1990 .
Simović, Bojana, Milojković, Natalija, Žunić, Milan, Branković, Goran, Dapčević, Aleksandra, "Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite" in 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia, (2022):54,
https://hdl.handle.net/21.15107/rcub_rimsi_1990 .

DSpace software copyright © 2002-2015  DuraSpace
About RIMSI | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceCommunitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About RIMSI | Send Feedback

OpenAIRERCUB