Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2
Само за регистроване кориснике
2022
Аутори
Tasić, NikolaĆirković, Jovana
Ribić, Vesna
Žunić, Milan
Dapčević, Aleksandra
Branković, Goran
Branković, Zorica
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is su...ggested, and the effects of the silver addition are explained.
Кључне речи:
TiO2 photocatalysis / silver / Reactive Orange 16 / nanodots / chitosanИзвор:
Journal of the American Ceramic Society, 2022, 105, 1, 336-347Издавач:
- Wiley, Hoboken
Финансирање / пројекти:
- Fundacao de Amparo a Pesquisa do Estado de Sao PauloFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2018/13922-7]
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200053 (Универзитет у Београду, Институт за мултидисциплинарна истраживања) (RS-MESTD-inst-2020-200053)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
DOI: 10.1111/jace.18059
ISSN: 0002-7820
WoS: 000683420700001
Scopus: 2-s2.0-85112032236
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Tasić, Nikola AU - Ćirković, Jovana AU - Ribić, Vesna AU - Žunić, Milan AU - Dapčević, Aleksandra AU - Branković, Goran AU - Branković, Zorica PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1517 AB - We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is suggested, and the effects of the silver addition are explained. PB - Wiley, Hoboken T2 - Journal of the American Ceramic Society T1 - Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2 EP - 347 IS - 1 SP - 336 VL - 105 DO - 10.1111/jace.18059 ER -
@article{ author = "Tasić, Nikola and Ćirković, Jovana and Ribić, Vesna and Žunić, Milan and Dapčević, Aleksandra and Branković, Goran and Branković, Zorica", year = "2022", abstract = "We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is suggested, and the effects of the silver addition are explained.", publisher = "Wiley, Hoboken", journal = "Journal of the American Ceramic Society", title = "Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2", pages = "347-336", number = "1", volume = "105", doi = "10.1111/jace.18059" }
Tasić, N., Ćirković, J., Ribić, V., Žunić, M., Dapčević, A., Branković, G.,& Branković, Z.. (2022). Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2. in Journal of the American Ceramic Society Wiley, Hoboken., 105(1), 336-347. https://doi.org/10.1111/jace.18059
Tasić N, Ćirković J, Ribić V, Žunić M, Dapčević A, Branković G, Branković Z. Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2. in Journal of the American Ceramic Society. 2022;105(1):336-347. doi:10.1111/jace.18059 .
Tasić, Nikola, Ćirković, Jovana, Ribić, Vesna, Žunić, Milan, Dapčević, Aleksandra, Branković, Goran, Branković, Zorica, "Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2" in Journal of the American Ceramic Society, 105, no. 1 (2022):336-347, https://doi.org/10.1111/jace.18059 . .