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Highly efficient TiO2/Ppy photocatalysts

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2022
Bojana.pdf (50.27Kb)
Authors
Milojković, Natalija
Simović, Bojana
Žunić, Milan
Dapčević, Aleksandra
Conference object (Published version)
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Abstract
Titanium dioxide is the most suitable semiconductor for photocatalytic application due to its high efficiency, increased stability, low-cost, and non-toxicity. However, it is possible to enhance the photocatalytic activity of TiO2 by homogenizing it with conductive polymers. One of the most attractive conductive polymers is polypyrrole (PPy) owing to its stability, low-cost, and special redox properties. The aim of this work was to obtain the TiO2/PPy nanocomposites with a higher photocatalytic activity compared to TiO2. In order to determine the optimal content of PPy, four TiO2/x%PPy samples (x = 0, 1, 3, and 5 wt.%) were synthesized and characterized by XRD and TG/DSC analyses. The photocatalytic activity was examined towards the degradation of toxic textile azo dye Reactive Orange 16. It was observed that an increase in PPy content led to better adsorption capacity of the synthesized nanocomposites. Samples TiO2/1%PPy and TiO2/5%PPy demonstrated better photocatalytic act...ivity than TiO2, while TiO2/3%PPy showed very similar photocatalytic activity to TiO2. Near complete degradation of the dye (98 %) was reached in 75 min by using TiO2/1%PPy, comparing to pure TiO2, which degraded the same amount of the dye in 120 min. Considering all the obtained results, the optimal content of PPy in the composite for degradation of Reactive Orange 16 is 1 wt.%.

Source:
Eight Conference of the Young Chemists of Serbia, Belgrade, Book of Abstracts, 2022, 93-
Publisher:
  • Serbian Chemical Society
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-200053)

ISBN: 978-86-7132-080-1

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_rimsi_1987
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/1987
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1987
AB  - Titanium dioxide is the most suitable semiconductor for photocatalytic application due
to its high efficiency, increased stability, low-cost, and non-toxicity. However, it is
possible to enhance the photocatalytic activity of TiO2 by homogenizing it with
conductive polymers. One of the most attractive conductive polymers is polypyrrole
(PPy) owing to its stability, low-cost, and special redox properties. The aim of this work
was to obtain the TiO2/PPy nanocomposites with a higher photocatalytic activity
compared to TiO2. In order to determine the optimal content of PPy, four TiO2/x%PPy
samples (x = 0, 1, 3, and 5 wt.%) were synthesized and characterized by XRD and
TG/DSC analyses. The photocatalytic activity was examined towards the degradation of
toxic textile azo dye Reactive Orange 16. It was observed that an increase in PPy content
led to better adsorption capacity of the synthesized nanocomposites. Samples
TiO2/1%PPy and TiO2/5%PPy demonstrated better photocatalytic activity than TiO2,
while TiO2/3%PPy showed very similar photocatalytic activity to TiO2. Near complete
degradation of the dye (98 %) was reached in 75 min by using TiO2/1%PPy, comparing
to pure TiO2, which degraded the same amount of the dye in 120 min. Considering all
the obtained results, the optimal content of PPy in the composite for degradation of
Reactive Orange 16 is 1 wt.%.
PB  - Serbian Chemical Society
C3  - Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts
T1  - Highly efficient TiO2/Ppy photocatalysts
SP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1987
ER  - 
@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Dapčević, Aleksandra",
year = "2022",
abstract = "Titanium dioxide is the most suitable semiconductor for photocatalytic application due
to its high efficiency, increased stability, low-cost, and non-toxicity. However, it is
possible to enhance the photocatalytic activity of TiO2 by homogenizing it with
conductive polymers. One of the most attractive conductive polymers is polypyrrole
(PPy) owing to its stability, low-cost, and special redox properties. The aim of this work
was to obtain the TiO2/PPy nanocomposites with a higher photocatalytic activity
compared to TiO2. In order to determine the optimal content of PPy, four TiO2/x%PPy
samples (x = 0, 1, 3, and 5 wt.%) were synthesized and characterized by XRD and
TG/DSC analyses. The photocatalytic activity was examined towards the degradation of
toxic textile azo dye Reactive Orange 16. It was observed that an increase in PPy content
led to better adsorption capacity of the synthesized nanocomposites. Samples
TiO2/1%PPy and TiO2/5%PPy demonstrated better photocatalytic activity than TiO2,
while TiO2/3%PPy showed very similar photocatalytic activity to TiO2. Near complete
degradation of the dye (98 %) was reached in 75 min by using TiO2/1%PPy, comparing
to pure TiO2, which degraded the same amount of the dye in 120 min. Considering all
the obtained results, the optimal content of PPy in the composite for degradation of
Reactive Orange 16 is 1 wt.%.",
publisher = "Serbian Chemical Society",
journal = "Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts",
title = "Highly efficient TiO2/Ppy photocatalysts",
pages = "93",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1987"
}
Milojković, N., Simović, B., Žunić, M.,& Dapčević, A.. (2022). Highly efficient TiO2/Ppy photocatalysts. in Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts
Serbian Chemical Society., 93.
https://hdl.handle.net/21.15107/rcub_rimsi_1987
Milojković N, Simović B, Žunić M, Dapčević A. Highly efficient TiO2/Ppy photocatalysts. in Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts. 2022;:93.
https://hdl.handle.net/21.15107/rcub_rimsi_1987 .
Milojković, Natalija, Simović, Bojana, Žunić, Milan, Dapčević, Aleksandra, "Highly efficient TiO2/Ppy photocatalysts" in Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts (2022):93,
https://hdl.handle.net/21.15107/rcub_rimsi_1987 .

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