Ag/TiO2 nanoparticle composites and their photocatalytic performance
Нема приказа
Аутори
Tasić, NikolaĆirković, Jovana
Dapčević, Aleksandra
Curkovic, Lidija
Ribić, Vesna
Žunić, Milan
Branković, Goran
Branković, Zorica
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this work we present simple chemical method for preparation of Ag/TiO2 nanoparticle
composites and investigate their photocatalytic performance under visible and UV-enriched
irradiation sources. The coupling of metallic additives with TiO2 (anatase, rutile or mixed
phase tetragonal structures), results in extension of the absorption range, higher utilization
of the visible light, and might lead to the faster photocatalytic degradation of pollutants, due
to more efficient charge separation. Proposed method involves usage of chitosan, a bioderived polysaccharide rarely utilized in ceramics-related research, which serves as both
stabilizing and reducing agent. We present thorough characterization of the structural,
textural and optical properties, performed on the obtained powders by the means of FESEM, TEM, XRD, SAED, BET and UV-VIS-NIR spectroscopy. Microscopical analysis revealed
the reduction of TiO2 particles size, upon the introduction of silver into the system, and
pres...ence of sub-10 nm TiO2 particles decorated with sub-3 nm Ag dots in the composite
samples (0-15wt% of Ag). Structural analysis disclosed pure or predominant presence of
anatase crystallographic phase. Higher surface area compared to commercial referent
samples was obtained. Also, the enhancement of visible light absorption was detected in the
composite samples, compared to pure TiO2. The photocatalytic degradation of textile azo
dye (Reactive Orange 16) and antibiotic (Nutrofurantoin) was investigated, showing very
high adsorption capability of the powders, and superior photocatalytic behaviour compared
to referent samples.
Кључне речи:
TiO2 / Ag doping / nanoparticle / PhotocatalysisИзвор:
The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018., 2018, 57-Издавач:
- CROATIAN ACADEMY OF SCIENCIES AND ARTS CROATIAN CRYSTALLOGRAPHIC ASSOCIATION ZAGREB, CROATIA
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200053 (Универзитет у Београду, Институт за мултидисциплинарна истраживања) (RS-MESTD-inst-2020-200053)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Tasić, Nikola AU - Ćirković, Jovana AU - Dapčević, Aleksandra AU - Curkovic, Lidija AU - Ribić, Vesna AU - Žunić, Milan AU - Branković, Goran AU - Branković, Zorica PY - 2018 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2955 AB - In this work we present simple chemical method for preparation of Ag/TiO2 nanoparticle composites and investigate their photocatalytic performance under visible and UV-enriched irradiation sources. The coupling of metallic additives with TiO2 (anatase, rutile or mixed phase tetragonal structures), results in extension of the absorption range, higher utilization of the visible light, and might lead to the faster photocatalytic degradation of pollutants, due to more efficient charge separation. Proposed method involves usage of chitosan, a bioderived polysaccharide rarely utilized in ceramics-related research, which serves as both stabilizing and reducing agent. We present thorough characterization of the structural, textural and optical properties, performed on the obtained powders by the means of FESEM, TEM, XRD, SAED, BET and UV-VIS-NIR spectroscopy. Microscopical analysis revealed the reduction of TiO2 particles size, upon the introduction of silver into the system, and presence of sub-10 nm TiO2 particles decorated with sub-3 nm Ag dots in the composite samples (0-15wt% of Ag). Structural analysis disclosed pure or predominant presence of anatase crystallographic phase. Higher surface area compared to commercial referent samples was obtained. Also, the enhancement of visible light absorption was detected in the composite samples, compared to pure TiO2. The photocatalytic degradation of textile azo dye (Reactive Orange 16) and antibiotic (Nutrofurantoin) was investigated, showing very high adsorption capability of the powders, and superior photocatalytic behaviour compared to referent samples. PB - CROATIAN ACADEMY OF SCIENCIES AND ARTS CROATIAN CRYSTALLOGRAPHIC ASSOCIATION ZAGREB, CROATIA C3 - The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018. T1 - Ag/TiO2 nanoparticle composites and their photocatalytic performance SP - 57 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2955 ER -
@conference{ author = "Tasić, Nikola and Ćirković, Jovana and Dapčević, Aleksandra and Curkovic, Lidija and Ribić, Vesna and Žunić, Milan and Branković, Goran and Branković, Zorica", year = "2018", abstract = "In this work we present simple chemical method for preparation of Ag/TiO2 nanoparticle composites and investigate their photocatalytic performance under visible and UV-enriched irradiation sources. The coupling of metallic additives with TiO2 (anatase, rutile or mixed phase tetragonal structures), results in extension of the absorption range, higher utilization of the visible light, and might lead to the faster photocatalytic degradation of pollutants, due to more efficient charge separation. Proposed method involves usage of chitosan, a bioderived polysaccharide rarely utilized in ceramics-related research, which serves as both stabilizing and reducing agent. We present thorough characterization of the structural, textural and optical properties, performed on the obtained powders by the means of FESEM, TEM, XRD, SAED, BET and UV-VIS-NIR spectroscopy. Microscopical analysis revealed the reduction of TiO2 particles size, upon the introduction of silver into the system, and presence of sub-10 nm TiO2 particles decorated with sub-3 nm Ag dots in the composite samples (0-15wt% of Ag). Structural analysis disclosed pure or predominant presence of anatase crystallographic phase. Higher surface area compared to commercial referent samples was obtained. Also, the enhancement of visible light absorption was detected in the composite samples, compared to pure TiO2. The photocatalytic degradation of textile azo dye (Reactive Orange 16) and antibiotic (Nutrofurantoin) was investigated, showing very high adsorption capability of the powders, and superior photocatalytic behaviour compared to referent samples.", publisher = "CROATIAN ACADEMY OF SCIENCIES AND ARTS CROATIAN CRYSTALLOGRAPHIC ASSOCIATION ZAGREB, CROATIA", journal = "The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018.", title = "Ag/TiO2 nanoparticle composites and their photocatalytic performance", pages = "57", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2955" }
Tasić, N., Ćirković, J., Dapčević, A., Curkovic, L., Ribić, V., Žunić, M., Branković, G.,& Branković, Z.. (2018). Ag/TiO2 nanoparticle composites and their photocatalytic performance. in The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018. CROATIAN ACADEMY OF SCIENCIES AND ARTS CROATIAN CRYSTALLOGRAPHIC ASSOCIATION ZAGREB, CROATIA., 57. https://hdl.handle.net/21.15107/rcub_rimsi_2955
Tasić N, Ćirković J, Dapčević A, Curkovic L, Ribić V, Žunić M, Branković G, Branković Z. Ag/TiO2 nanoparticle composites and their photocatalytic performance. in The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018.. 2018;:57. https://hdl.handle.net/21.15107/rcub_rimsi_2955 .
Tasić, Nikola, Ćirković, Jovana, Dapčević, Aleksandra, Curkovic, Lidija, Ribić, Vesna, Žunić, Milan, Branković, Goran, Branković, Zorica, "Ag/TiO2 nanoparticle composites and their photocatalytic performance" in The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018. (2018):57, https://hdl.handle.net/21.15107/rcub_rimsi_2955 .