Article history: Bismuth vanadate (BiVO ) microstructures with dumbbell, rod, ellipsoid, sphere, and cake-like mor- Received 14 April 2017 phologies have been successfully fabricated by using a surfactant-free hydrothermal method, in which the Received in revised form 28 July 2017 morphology of the BiVO microstructures can be tuned by simply varying the molar ratio of Bi(NO) ·5H O 4 3 2 Accepted 31 July 2017 to NaVO in the starting materials. Based on a series of contrast experiments, the probable formation Available online 5 August 2017 mechanism of the BiVO microstructures with multiple shapes have been proposed. The photocatalytic performances of the as-prepared BiVO microstructures have been evaluated by studying the degrada- Keywords: tion of Rhodamine B solutions under visible light irradiation. The results reveal that the cake-like BiVO Bismuth vanadate microstructures exhibit the higher photocatalytic activity than other BiVO microstructures due to its Hydrothermal synthesis high surface area and unique morphology. Morphology © 2017 Elsevier B.V. All rights reserved. Photocatalytic activity Dye degradation 1. Introduction Up to now, BiVO nanostructures with different morphologies and sizes have been synthesized by the hydrothermal method [15–34]. Semiconductor photocatalysts have received increasing atten- Moreover, these studies revealed that designing nanostructures tion due
Applied Surface Science – Elsevier
Published: Jan 1, 2018
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