Naslov
Photodegradation of organic dye using BiFeO3 particles synthesized by ultrasound route

Autori
Ćirković, Jovana ; Luković Golić, Danijela ; Radojković, Aleksandar ; Dapčević, Aleksandra ; Čizmić, Mirta ; Branković, Zorica ; Branković, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Programme and Book of Abstracts of The Fourth Conference of The Serbian Society for Ceramic Materilas / Matović, Branko ; Branković, Zorica ; Bučevac, Dušan ; Srdić, Vladimir V. - Beograd : Institute for Multidisciplinary Research, University of Belgrade, 2017

ISBN
978-86-80995-77-9

Skup
4th Conference of The Serbian Society for Ceramic Materials, June 14-16th, Belgrade, Serbia, p. 91.

Mjesto i datum
Beograd, Srbija, 14.06.2017. - 16.06.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
BiFeO3, ultrasound asissted sol-gel route, azo dye, liquid chromatography, degradation products

Sažetak
BiFeO 3 precursor powder was synthesized by ultrasound asissted sol – gel route at relatively low temperature, starting from Bi - nitrate, Fe - nitrate, and ethylene glycol. Structural, optical, and photocatalytic properties of the obtained powder were investigated. X - ray diffraction analysis confirmed that thermal treatment of precursor powder at 500 °C led to formation of pure phase BiFeO 3 . The determined band gap was 2.20 eV, indicating its potential application as visible - light - response photocatalyst. The powder is used for photocatalytic degradation of typical organic azo dye Mordant Blue 9 in concentration of 50 mg/l. Measurements were performed for different times of irradiation and p H of the dye solution. Changes in UV - Vis absorption spectra revealed the decolorization and decomposition of organic dye during the photodegradation process. Photodegradation products were analyzied by HPLC technique, and mechanism of photocatalytic degradation of organic dye was proposed.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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