Abstract
Hierarchically structured m-BiVO4 samples oriented along {040} facets were successfully synthesized by a template-free solvothermal route in ethylene glycol and water mixed solvents. The photocatalytic activity was evaluated by the photocatalytic degradation of methylene blue under visible light. The results showed that the volume ratio of ethylene glycol/H2O played a great influence on the morphology. What is more, the preferential crystal growth of the BiVO4 oriented along {040} facets could also be affected by the volume ratio of ethylene glycol/H2O. The photocatalytic results demonstrated that the lamellar BiVO4 sample with the highest relative intensities of the diffraction peaks I040/I–121 exhibited the best photocatalytic activity.
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