Issue 20, 2021

Role of cooperative factors in the photocatalytic activity of Ba and Mn doped BiFeO3 nanoparticles

Abstract

The escalated photocatalytic (PC) efficiency of the visible light absorber Ba-doped BiFe0.95Mn0.05O3 (BFM) nanoparticles (NPs) as compared to BiFeO3 (BFO) NPs is reported for the degradation of the organic pollutants rhodamine B and methyl orange. 1 mol% Ba-doped-BFM NPs degrade both dyes within 60 and 25 minutes under UV + visible illumination, respectively. The Ba and Mn co-doping up to 5 mol% in BFO NPs increases the specific surface area, energy of d–d transitions, and PC efficiency of the BFO NPs. The maximum PC efficiency found in 1 mol% Ba doped BFM NPs is attributed to a cooperative effect of factors like its increased light absorption ability, large surface area, active surface, reduced recombination of charge carriers, and spontaneous polarization to induce charge carrier separation. The 1 mol% Ba and 5 mol% Mn co-incorporation is found to be the optimum dopant concentration for photocatalytic applications. These properties of co-doped BFO NPs can, e.g., be exploited in the field of water splitting.

Graphical abstract: Role of cooperative factors in the photocatalytic activity of Ba and Mn doped BiFeO3 nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
03 Jun 2021
Accepted
25 Aug 2021
First published
26 Aug 2021
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2021,3, 5830-5840

Role of cooperative factors in the photocatalytic activity of Ba and Mn doped BiFeO3 nanoparticles

A. Dubey, A. Schmitz, V. V. Shvartsman, G. Bacher, D. C. Lupascu and M. E. Castillo, Nanoscale Adv., 2021, 3, 5830 DOI: 10.1039/D1NA00420D

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