BiFeO3-based nanoparticles obtained by different synthetic routes and their - structural, optical and photocatalytic properties
Нема приказа
Аутори
Ćirković, JovanaLuković Golić, Danijela
Radojković, Aleksandar
Dapčević, Aleksandra
Tasić, Nikola
Čizmić, Mirta
Branković, Goran
Branković, Zorica
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The preparation of pure BiFeO3 (BFO) powders and ceramics is still a challenging issue
because of a narrow temperature range of phase stabilization. The mechanism of BFO
synthesis reaction usually includes formation of secondary phases. In this work, BFO
precursor powders were synthesized by hydro-evaporation (HE) and ultrasound (US) assisted
sol–gel method. BFO precursor powder obtained by HE method was calcined at various
temperatures ranging from 620°C to 770°C for 6 h; while powder obtained by US route was
thermally treated at 500°C for 30 min, to form resulting BFO powders. Structural, optical,
and photocatalytic properties of the obtained powders were investigated. The X-ray
diffraction analysis of BFO powders prepared by HE method, confirmed the presence of
secondary phases, Bi25FeO39 and Bi2Fe4O9. On the other hand, X-ray diffraction analysis
confirmed the formation of pure phase nanosized BFO obtained by US route. Therefore, BFO
powder obtained by US method was sele...cted for photocatalytic degradation of typical
organic azo dye Mordant Blue 9 in concentration of 50 mg/l. The determined band gap of US
obtained BFO powder was 2.20 eV, indicating its potential application as visible-lightresponse photocatalyst. Measurements were performed for different times of irradiation
and pH of the dye solution. Photodegradation products were analysed by HPLC technique,
and mechanism of photocatalytic degradation of organic dye was proposed.
Кључне речи:
Photocatalysis / BiFeO3 / Crystal structure / optical propertiesИзвор:
The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018., 2018, 60-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 - Ćirković, Jovana AU - Luković Golić, Danijela AU - Radojković, Aleksandar AU - Dapčević, Aleksandra AU - Tasić, Nikola AU - Čizmić, Mirta AU - Branković, Goran AU - Branković, Zorica PY - 2018 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2958 AB - The preparation of pure BiFeO3 (BFO) powders and ceramics is still a challenging issue because of a narrow temperature range of phase stabilization. The mechanism of BFO synthesis reaction usually includes formation of secondary phases. In this work, BFO precursor powders were synthesized by hydro-evaporation (HE) and ultrasound (US) assisted sol–gel method. BFO precursor powder obtained by HE method was calcined at various temperatures ranging from 620°C to 770°C for 6 h; while powder obtained by US route was thermally treated at 500°C for 30 min, to form resulting BFO powders. Structural, optical, and photocatalytic properties of the obtained powders were investigated. The X-ray diffraction analysis of BFO powders prepared by HE method, confirmed the presence of secondary phases, Bi25FeO39 and Bi2Fe4O9. On the other hand, X-ray diffraction analysis confirmed the formation of pure phase nanosized BFO obtained by US route. Therefore, BFO powder obtained by US method was selected for photocatalytic degradation of typical organic azo dye Mordant Blue 9 in concentration of 50 mg/l. The determined band gap of US obtained BFO powder was 2.20 eV, indicating its potential application as visible-lightresponse photocatalyst. Measurements were performed for different times of irradiation and pH of the dye solution. Photodegradation products were analysed by HPLC technique, and mechanism of photocatalytic degradation of organic dye was proposed. 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 - BiFeO3-based nanoparticles obtained by different synthetic routes and their - structural, optical and photocatalytic properties SP - 60 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2958 ER -
@conference{ author = "Ćirković, Jovana and Luković Golić, Danijela and Radojković, Aleksandar and Dapčević, Aleksandra and Tasić, Nikola and Čizmić, Mirta and Branković, Goran and Branković, Zorica", year = "2018", abstract = "The preparation of pure BiFeO3 (BFO) powders and ceramics is still a challenging issue because of a narrow temperature range of phase stabilization. The mechanism of BFO synthesis reaction usually includes formation of secondary phases. In this work, BFO precursor powders were synthesized by hydro-evaporation (HE) and ultrasound (US) assisted sol–gel method. BFO precursor powder obtained by HE method was calcined at various temperatures ranging from 620°C to 770°C for 6 h; while powder obtained by US route was thermally treated at 500°C for 30 min, to form resulting BFO powders. Structural, optical, and photocatalytic properties of the obtained powders were investigated. The X-ray diffraction analysis of BFO powders prepared by HE method, confirmed the presence of secondary phases, Bi25FeO39 and Bi2Fe4O9. On the other hand, X-ray diffraction analysis confirmed the formation of pure phase nanosized BFO obtained by US route. Therefore, BFO powder obtained by US method was selected for photocatalytic degradation of typical organic azo dye Mordant Blue 9 in concentration of 50 mg/l. The determined band gap of US obtained BFO powder was 2.20 eV, indicating its potential application as visible-lightresponse photocatalyst. Measurements were performed for different times of irradiation and pH of the dye solution. Photodegradation products were analysed by HPLC technique, and mechanism of photocatalytic degradation of organic dye was proposed.", 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 = "BiFeO3-based nanoparticles obtained by different synthetic routes and their - structural, optical and photocatalytic properties", pages = "60", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2958" }
Ćirković, J., Luković Golić, D., Radojković, A., Dapčević, A., Tasić, N., Čizmić, M., Branković, G.,& Branković, Z.. (2018). BiFeO3-based nanoparticles obtained by different synthetic routes and their - structural, optical and photocatalytic properties. 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., 60. https://hdl.handle.net/21.15107/rcub_rimsi_2958
Ćirković J, Luković Golić D, Radojković A, Dapčević A, Tasić N, Čizmić M, Branković G, Branković Z. BiFeO3-based nanoparticles obtained by different synthetic routes and their - structural, optical and photocatalytic properties. in The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018.. 2018;:60. https://hdl.handle.net/21.15107/rcub_rimsi_2958 .
Ćirković, Jovana, Luković Golić, Danijela, Radojković, Aleksandar, Dapčević, Aleksandra, Tasić, Nikola, Čizmić, Mirta, Branković, Goran, Branković, Zorica, "BiFeO3-based nanoparticles obtained by different synthetic routes and their - structural, optical and photocatalytic properties" in The Book of Abstracts / The 26th Croatian-Slovenian Crystallographic Meeting, Poreč, Croatia, June 13-17,2018. (2018):60, https://hdl.handle.net/21.15107/rcub_rimsi_2958 .