Modification of titanium-dioxide surface with silver(i)-oxide as a catalyst for photocatalytic degradation of fungicide
Modifikacija površine titanijum-dioksida srebro(i)-oksidom kao katalizatora za fotokatalitičku degradaciju fungicida
Authors
Jovanović, Aleksandar
Bugarčić, Mladen

Čutović, Natalija
Bošnjaković, Jovana
Knežević, Nataša
Marinković, Aleksandar
Contributors
Brajković, PetraMatošin, Ante
Mužek, Mario Nikola
Conference object (Published version)

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Show full item recordAbstract
Pollution of water presents one of the biggest problems of modern society. Pesticide
production, usage and release, as well as their persistence in the environment, have
detrimental effects on the aquatic and non-target species. Therefore, it is necessary to apply
treatment techniques in order to prevent these negative consequences. The processes used
so far do not have the necessary efficiency to optimally solve this problem. Hence, plenty
of advanced oxidation processes (AOPs) has been developed, among which photocatalysis
has stood out. Thus, photocatalytic degradation of fungicide thiophanate-methyl by using
recently synthesized catalyst Ag2O/TiO2 was considered. The effect of the various
parameters, such as catalyst amount, fungicide concentration, and also the distance of the
lamp from the photocatalytic reactor was studied. The obtained photocatalyst was examined
using Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy
(SEM), as well as Diffu...se reflectance spectroscopy (DRS). Photocatalytic assays
employing Ag2O/TiO2 catalyst with the concentration of 0.065 g/l yielded the best results.
The degradation rate constant was measured as 0,040 min-1 by observing values of
absorbances from the UV spectrophotometer Shimadzu 1800. Under the optimal
conditions, the complete disappearance of 10 mg/l of fungicide occurred within 2 h by
using Ag2O/TiO2. However, the limitation of the applied process is reflected in the volume
of wastewater that can be treated, while making it economically viable. Obtained results
show that synthesized catalysts pose a great ability to effectively decompose thiophanatemethyl
under UV light.
Keywords:
photocatalysis / pesticide / silver-based catalyst / pollutant removalSource:
3rd International convention of scientists, specialist employees and students on the topic of Environmental protection in the Republic of Croatia (3rd ZORH convention), 2022, 26-26Publisher:
- Split : University of Split, Faculty of Chemistry and Technology
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. 200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (RS-200023)
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Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - CONF AU - Jovanović, Aleksandar AU - Bugarčić, Mladen AU - Čutović, Natalija AU - Bošnjaković, Jovana AU - Knežević, Nataša AU - Marinković, Aleksandar PY - 2022 UR - https://ritnms.itnms.ac.rs/handle/123456789/675 AB - Pollution of water presents one of the biggest problems of modern society. Pesticide production, usage and release, as well as their persistence in the environment, have detrimental effects on the aquatic and non-target species. Therefore, it is necessary to apply treatment techniques in order to prevent these negative consequences. The processes used so far do not have the necessary efficiency to optimally solve this problem. Hence, plenty of advanced oxidation processes (AOPs) has been developed, among which photocatalysis has stood out. Thus, photocatalytic degradation of fungicide thiophanate-methyl by using recently synthesized catalyst Ag2O/TiO2 was considered. The effect of the various parameters, such as catalyst amount, fungicide concentration, and also the distance of the lamp from the photocatalytic reactor was studied. The obtained photocatalyst was examined using Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), as well as Diffuse reflectance spectroscopy (DRS). Photocatalytic assays employing Ag2O/TiO2 catalyst with the concentration of 0.065 g/l yielded the best results. The degradation rate constant was measured as 0,040 min-1 by observing values of absorbances from the UV spectrophotometer Shimadzu 1800. Under the optimal conditions, the complete disappearance of 10 mg/l of fungicide occurred within 2 h by using Ag2O/TiO2. However, the limitation of the applied process is reflected in the volume of wastewater that can be treated, while making it economically viable. Obtained results show that synthesized catalysts pose a great ability to effectively decompose thiophanatemethyl under UV light. PB - Split : University of Split, Faculty of Chemistry and Technology C3 - 3rd International convention of scientists, specialist employees and students on the topic of Environmental protection in the Republic of Croatia (3rd ZORH convention) T1 - Modification of titanium-dioxide surface with silver(i)-oxide as a catalyst for photocatalytic degradation of fungicide T1 - Modifikacija površine titanijum-dioksida srebro(i)-oksidom kao katalizatora za fotokatalitičku degradaciju fungicida EP - 26 SP - 26 ER -
@conference{ author = "Jovanović, Aleksandar and Bugarčić, Mladen and Čutović, Natalija and Bošnjaković, Jovana and Knežević, Nataša and Marinković, Aleksandar", year = "2022", abstract = "Pollution of water presents one of the biggest problems of modern society. Pesticide production, usage and release, as well as their persistence in the environment, have detrimental effects on the aquatic and non-target species. Therefore, it is necessary to apply treatment techniques in order to prevent these negative consequences. The processes used so far do not have the necessary efficiency to optimally solve this problem. Hence, plenty of advanced oxidation processes (AOPs) has been developed, among which photocatalysis has stood out. Thus, photocatalytic degradation of fungicide thiophanate-methyl by using recently synthesized catalyst Ag2O/TiO2 was considered. The effect of the various parameters, such as catalyst amount, fungicide concentration, and also the distance of the lamp from the photocatalytic reactor was studied. The obtained photocatalyst was examined using Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), as well as Diffuse reflectance spectroscopy (DRS). Photocatalytic assays employing Ag2O/TiO2 catalyst with the concentration of 0.065 g/l yielded the best results. The degradation rate constant was measured as 0,040 min-1 by observing values of absorbances from the UV spectrophotometer Shimadzu 1800. Under the optimal conditions, the complete disappearance of 10 mg/l of fungicide occurred within 2 h by using Ag2O/TiO2. However, the limitation of the applied process is reflected in the volume of wastewater that can be treated, while making it economically viable. Obtained results show that synthesized catalysts pose a great ability to effectively decompose thiophanatemethyl under UV light.", publisher = "Split : University of Split, Faculty of Chemistry and Technology", journal = "3rd International convention of scientists, specialist employees and students on the topic of Environmental protection in the Republic of Croatia (3rd ZORH convention)", title = "Modification of titanium-dioxide surface with silver(i)-oxide as a catalyst for photocatalytic degradation of fungicide, Modifikacija površine titanijum-dioksida srebro(i)-oksidom kao katalizatora za fotokatalitičku degradaciju fungicida", pages = "26-26" }
Jovanović, A., Bugarčić, M., Čutović, N., Bošnjaković, J., Knežević, N.,& Marinković, A.. (2022). Modification of titanium-dioxide surface with silver(i)-oxide as a catalyst for photocatalytic degradation of fungicide. in 3rd International convention of scientists, specialist employees and students on the topic of Environmental protection in the Republic of Croatia (3rd ZORH convention) Split : University of Split, Faculty of Chemistry and Technology., 26-26.
Jovanović A, Bugarčić M, Čutović N, Bošnjaković J, Knežević N, Marinković A. Modification of titanium-dioxide surface with silver(i)-oxide as a catalyst for photocatalytic degradation of fungicide. in 3rd International convention of scientists, specialist employees and students on the topic of Environmental protection in the Republic of Croatia (3rd ZORH convention). 2022;:26-26..
Jovanović, Aleksandar, Bugarčić, Mladen, Čutović, Natalija, Bošnjaković, Jovana, Knežević, Nataša, Marinković, Aleksandar, "Modification of titanium-dioxide surface with silver(i)-oxide as a catalyst for photocatalytic degradation of fungicide" in 3rd International convention of scientists, specialist employees and students on the topic of Environmental protection in the Republic of Croatia (3rd ZORH convention) (2022):26-26.