Sono-synthesis of bismuth ferrite nanoparticles with high photocatalytic activity in degradation of Rhodamine B under solar light irradiation
作者： Tayyebe Soltani , Mohammad H. Entezari
DOI: 10.1016/J.CEJ.2013.02.124
关键词:
摘要: Abstract In this work, pure bismuth ferrite (BiFeO 3 ) as a visible-light photocatalyst has successfully synthesized via ultrasonic method in short time and low temperature. The product was characterized by different techniques. Then, the degradation of Rhodamine B (RhB) investigated under sunlight irradiation ferrites with ultrasound. RhB solution completely degraded 35 min applied conditions acidic medium. nanocatalyst did not exhibit significant loss activity even after four cycles successive uses. total organic carbon (TOC) measurements displayed complete mineralization 90 min. To determine mechanism photocatalytic RhB, methods were used. Based on results, two possible competitive photodegradation pathways proposed: chromophores cleavage N-deethylation. hole reactive species had key role process. BiFeO (BFO) nanoparticles ultrasound exhibited higher crystallization, smaller crystallite size than sample sol–gel stricter conditions.
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