Additive-free controllable fabrication of bismuth vanadates and their photocatalytic activity toward dye degradation
2009; Elsevier BV; Volume: 256; Issue: 7 Linguagem: Inglês
10.1016/j.apsusc.2009.09.076
ISSN1873-5584
AutoresYingna Guo, Xia Yang, Fengyan Ma, Kexin Li, Lei Xu, Xing Yuan, Yihang Guo,
Tópico(s)Gas Sensing Nanomaterials and Sensors
ResumoBismuth 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.
Referência(s)