Photocatalytic properties of BiFeO3 nanoparticles with different sizes

Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation

“…Figure 3 shows the FTIR spectra of BiFeO 3, CQD, and 12C/BFO composites. In the case of bare BiFeO 3 , the peaks at~440 cm −1 and~560 cm −1 are assigned to the stretching and bending vibrations of Fe-O, which is consistent with the reported result [55]. For the CQDs, the deformation vibration for C-H at~638 cm −1 , the stretching vibration for C-C at~1630 cm −1 , and C-OH stretching at~1120 cm −1 are found [58].…”

“…BiFeO 3 nanoparticles were prepared through a polyacrylamide gel route as reported in the literature [55]. The CQD/BiFeO 3 composites were fabricated as follows ( Fig.…”

Photocatalytic performance of BiFeO3 based on MOFs precursor

“…Compared with other methods, the BFO prepared by this method exhibits better photocatalytic performance, as shown in Table . Generally, smaller particles is expected to reduce the recombination opportunities of the photogenerated electron–hole pairs, and smaller band gap allow the formation of larger number of charges upon the same visible light irradiation . These collectively lead to an increase in the photocatalytic activity.…”

Multiferroics beyond electric-field control of magnetism

“…An environmentally relevant application of photocatalysis is water purification through the catalytic degradation of high molecular weight organic molecules such as contaminant dyes into smaller molecules such as CO 2 or H 2 O. BiFeO 3 nanosheets, nanowires and nanoparticles have been demonstrated to photo-degrade large organic dyes such as methyl orange [44] and rhodamine B [45] in the presence of sunlight, with mechanical vibrations increasing the efficiency likely due to the internal piezoelectric fields' promoting charge separation [46]. Intriguingly, magnetoelectric cobalt ferrite / bismuth ferrite coreshell nanoparticles were shown to catalyze the breakdown of synthetic dyes and pharmaceuticals in the presence of an AC magnetic field, even without sunlight [47], highlighting a need for improved understanding of the inter-play between applied fields, the surface electronic structure, the defect chemistry and microstructure, and the environment.…”