Additive-free controllable fabrication of bismuth vanadates and their photocatalytic activity toward dye degradation |
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Authors: | Yingna Guo Xia Yang Kexin Li Xing Yuan Yihang Guo |
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Institution: | a College of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, PR China b Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China |
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Abstract: | Bismuth vanadates (BiVO4) with various crystal structures (tetragonal scheelite, monoclinic scheelite, and tetragonal zircon) and morphologies (sphere-, nanosheet-, dendrite-, and flower-like) were controllably fabricated by using a mild additive-free hydrothermal treatment process under the different preparation conditions. The crystal structures, morphologies, and photophysical properties of the products were well-characterized. Subsequently, their UV- as well as visible-light photocatalytic performance was evaluated via dyes rhodamine B (RB) and methylene blue (MB) degradation. Special attention was paid to evaluate the correlation of the reactivity with crystal structure, morphology, and electronic structure of as-prepared BiVO4 samples. |
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Keywords: | Bismuth vanadate Hydrothermal treatment Visible-light photocatalysis Dye degradation |
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