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South African Journal of Chemistry
versão On-line ISSN 1996-840X
versão impressa ISSN 0379-4350
S.Afr.j.chem. (Online) vol.65 Durban 2012
RESEARCH ARTICLE
Fabrication of perovskite-type oxide BaPbO3 nanoparticles and their efficiency in photodegradation of methylene blue
Taymaz TabariI, *; Haman TavakkoliII; Poorya ZargaranI; Davoud BeiknejadI
IDepartment of Chemistry, Faculty of Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
IIDepartment of Chemistry, Science and Research Branch, Islamic Azad University, Khouzestan, Iran
ABSTRACT
BaPbO3 perovskite was prepared by the sol-gel method. The physical and chemical properties of catalyst were characterized by XRD, TEM, SEM, EDX and IR techniques. The photocatalytic activity of the sample was evaluated by photocatalytic decomposition of methylene blue (MB) dye under UV irradiation. The results of XRD indicate that the perovskite-type oxide (BaPbO3) is crystal at 700 °C. The XRD, TEM and SEM revealed that BaPbO3 particles are prepared in the nano-size regime. The results show that the degradation efficiency of methylene blue (MB) by BaPbO3 is higher than rutile under similar conditions.
Keywords: Perovskite-type oxide, nanopowder, dye removal, methylene blue
Full text available only in PDF format.
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Received 16 August 2012
Revised 9 October 2012
Accepted 18 October 2012
* To whom correspondence should be addressed. E-mail: taymaz_tabari@yahoo.com