Additive-free controllable fabrication of bismuth vanadates and their photocatalytic activity toward dye degradation

作者：Guo, Yingna; Yang, Xia; Ma, Fengyan; Li, Kexin; Xu, Lei; Yuan, Xing^*; Guo, Yihang

来源：Applied Surface Science, 2010, 256(7): 2215-2222.

DOI：10.1016/j.apsusc.2009.09.076

• Bismuth vanadate
• Hydrothermal treatment
• Visible-light photocatalysis
• Dye degradation

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 amild 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.

• 出版日期2010-1-15
• 单位东北师范大学