Abstract
The objective followed by this research is the synthesis of 3D flower-like Fe-Bi2O3 and the study of its capability for the degradation of Rhodamine B (RhB) under visible light irradiation (λ > 400 nm). Samples were obtained by a simple sol–gel method at room temperature. The as-prepared Fe-Bi2O3 exhibited excellent photocatalytic performance under the visible light due to its relatively narrow band gap energy (2.83 eV). The photocatalytic activity was carefully evaluated with respect to RhB photodegradation in different conditions such as light source and reaction time. The experimental results showed that the degradation rate of 3D flower-like Fe-Bi2O3 is up to 82% under visible light irradiation, when EtOH/H2O volume ratio and Bi/Fe molar ratio are 7:3 and 20:1, respectively.
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