Band-gap engineering of BiFeO3 based powders. Influence on photocatalytic properties
Апстракт
Bismuth ferrite (BiFeO3) is studied a lot in recent years because of its specific structure and potential to act
as single phase multiferrioic well above the room temperature. Thanks to the optical band gap energy of 2.3-
2.8 eV BiFeO3 is also an interesting material for photocatalytic and solar energy applications. Sol-gel and solid
state methods were used to synthesize BiFeO3-based powders. Two main methods would be used to modify the
band gap. First one is incorporation into composite materials with contribution of phase boundaries formed
between different phases of bismuth-iron oxides or BiFeO3 and silica-based substrate powders. Second one is
modification of powders by milling them with organic compounds in order to get defects and oxygen vacancies.
Composition, structure and microstructure of such way obtained powders were conducted and their influence
on variations in band-gap energy studied. Visible and UV-Vis light photocatalytic activity of synthesized materials
for ...decomposition of methylene blue solutions was tested and optimal composition and preparation route
for this application proposed, as well as the present mechanisms of adsorption and photocatalytic reaction.
Кључне речи:
Bismuth ferrite / multiferrioic / solid state methods / solar energy applicationsИзвор:
Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference, 2020Издавач:
- Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Ilić, Nikola AU - Bobić, Jelena AU - Vijatović Petrović, Mirjana AU - Džunuzović, Adis AU - Stojanović, Biljana PY - 2020 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2509 AB - Bismuth ferrite (BiFeO3) is studied a lot in recent years because of its specific structure and potential to act as single phase multiferrioic well above the room temperature. Thanks to the optical band gap energy of 2.3- 2.8 eV BiFeO3 is also an interesting material for photocatalytic and solar energy applications. Sol-gel and solid state methods were used to synthesize BiFeO3-based powders. Two main methods would be used to modify the band gap. First one is incorporation into composite materials with contribution of phase boundaries formed between different phases of bismuth-iron oxides or BiFeO3 and silica-based substrate powders. Second one is modification of powders by milling them with organic compounds in order to get defects and oxygen vacancies. Composition, structure and microstructure of such way obtained powders were conducted and their influence on variations in band-gap energy studied. Visible and UV-Vis light photocatalytic activity of synthesized materials for decomposition of methylene blue solutions was tested and optimal composition and preparation route for this application proposed, as well as the present mechanisms of adsorption and photocatalytic reaction. PB - Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference C3 - Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference T1 - Band-gap engineering of BiFeO3 based powders. Influence on photocatalytic properties UR - https://hdl.handle.net/21.15107/rcub_rimsi_2509 ER -
@conference{ author = "Ilić, Nikola and Bobić, Jelena and Vijatović Petrović, Mirjana and Džunuzović, Adis and Stojanović, Biljana", year = "2020", abstract = "Bismuth ferrite (BiFeO3) is studied a lot in recent years because of its specific structure and potential to act as single phase multiferrioic well above the room temperature. Thanks to the optical band gap energy of 2.3- 2.8 eV BiFeO3 is also an interesting material for photocatalytic and solar energy applications. Sol-gel and solid state methods were used to synthesize BiFeO3-based powders. Two main methods would be used to modify the band gap. First one is incorporation into composite materials with contribution of phase boundaries formed between different phases of bismuth-iron oxides or BiFeO3 and silica-based substrate powders. Second one is modification of powders by milling them with organic compounds in order to get defects and oxygen vacancies. Composition, structure and microstructure of such way obtained powders were conducted and their influence on variations in band-gap energy studied. Visible and UV-Vis light photocatalytic activity of synthesized materials for decomposition of methylene blue solutions was tested and optimal composition and preparation route for this application proposed, as well as the present mechanisms of adsorption and photocatalytic reaction.", publisher = "Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference", journal = "Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference", title = "Band-gap engineering of BiFeO3 based powders. Influence on photocatalytic properties", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2509" }
Ilić, N., Bobić, J., Vijatović Petrović, M., Džunuzović, A.,& Stojanović, B.. (2020). Band-gap engineering of BiFeO3 based powders. Influence on photocatalytic properties. in Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference.. https://hdl.handle.net/21.15107/rcub_rimsi_2509
Ilić N, Bobić J, Vijatović Petrović M, Džunuzović A, Stojanović B. Band-gap engineering of BiFeO3 based powders. Influence on photocatalytic properties. in Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference. 2020;. https://hdl.handle.net/21.15107/rcub_rimsi_2509 .
Ilić, Nikola, Bobić, Jelena, Vijatović Petrović, Mirjana, Džunuzović, Adis, Stojanović, Biljana, "Band-gap engineering of BiFeO3 based powders. Influence on photocatalytic properties" in Electroceramics XVII 2020, Darmstadt, 24-28 August 2020, Online Conference (2020), https://hdl.handle.net/21.15107/rcub_rimsi_2509 .