Xu Cai, Zhu Gangqiang, Wu Junlin, Liang Jia
J Nanosci Nanotechnol. 2014 Jun;14(6):4475-80. doi: 10.1166/jnn.2014.8039.
Monoclinic BiVO4 nano- and microstructures with a diversity of well-defined morphologies, such as nanoplates, dendrite leaves-like structures, sub-microrods, and microflowers were synthesized via a template-free hydrothermal process with bismuth nitrate and ammonium metavanadate as metal source. The crystal structures, morphologies and optical properties of the as-prepared samples were characterized by X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and UV-visible absorption spectra (UV-vis). Results showed that the pH value of the solution and the volume of ethylenediamine have great effect on the formation of these unique structures. The photocatalytic activity of these as-prepared samples had been tested by degradation of methylene blue under visible light, indicating that showed good photocatalytic performance.
以硝酸铋和偏钒酸铵为金属源，通过无模板水热法合成了具有多种明确形态的单斜相BiVO₄纳米和微结构，如纳米片、树枝状叶状结构、亚微棒和微花。采用X射线粉末衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、X射线光电子能谱（XPS）和紫外可见吸收光谱（UV-vis）对所制备样品的晶体结构、形态和光学性质进行了表征。结果表明，溶液的pH值和乙二胺的用量对这些独特结构的形成有很大影响。通过可见光下降解亚甲基蓝测试了所制备样品的光催化活性，结果表明其具有良好的光催化性能。
