The effect of solvents and surfactants on morphology and visible-light photocatalytic activity of BiFeO_3 microcrystals

摘要

BiFeO_3 microcrystals were prepared by hydrothermal method using different surfactants and solvents. The samples were examined by using X-ray diffraction, scanning electron microscopy and Raman spectroscopy. The measurements showed that BiFeO_3 microcrystals had solvent-dependent morphologies and crystal structure. The visible-light photocatalytic activity of BiFeO_3 microcrystals was evaluated by degradating rho-damine B on a UV-Vis absorption spectrophotometer. These results showed that the kind of surfactants and solvents played a key role in the photocatalytic activity of BiFeO_3 microcrystals.