Issue 9, 2023

Single-phase BiFeO3 and BiFeO3–Fe2O3 nanocomposite photocatalysts for photodegradation of organic dye pollutants

Abstract

The application of a novel BiFeO3 (BFO)–Fe2O3 composite (called BFOF) as a photocatalyst for the degradation of methylene blue is reported. To improve the photocatalytic effectiveness of BiFeO3, we synthesized the first BFOF photocatalyst by adjusting the molar ratio of Fe2O3 in BiFeO3 using microwave-assisted co-precipitation. The UV-visible properties of the nanocomposites showed excellent absorption of visible light and reduced electron–hole recombination properties compared to the pure phase BFO. Photocatalytic studies on BFOF10 (90% BFO, 10% Fe2O3), BFOF20 (80% BFO, 20% Fe2O3), and BFOF30 (70% BFO, 30% Fe2O3) have shown that they decompose Methylene Blue (MB) in sunlight better than the pure BFO phase in 70 minutes. The BFOF30 photocatalyst was the most effective at reducing MB when exposed to visible light (94%). Magnetic studies confirm that the most effective catalyst BFOF30 has excellent stability and magnetic recovery properties due to the presence of magnetic phase Fe2O3 in the BFO.

Graphical abstract: Single-phase BiFeO3 and BiFeO3–Fe2O3 nanocomposite photocatalysts for photodegradation of organic dye pollutants

Supplementary files

Article information

Article type
Paper
Submitted
02 Dec 2022
Accepted
22 Mar 2023
First published
30 Mar 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2023,5, 2646-2656

Single-phase BiFeO3 and BiFeO3–Fe2O3 nanocomposite photocatalysts for photodegradation of organic dye pollutants

P. Banoth, B. P. Narsaiah, L. De Los Santos Valladares, J. Kargin and P. Kollu, Nanoscale Adv., 2023, 5, 2646 DOI: 10.1039/D2NA00881E

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