Anhui Key Laboratory of Metal Materials and Processing, School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, China.
J Anal Methods Chem. 2012;2012:345247. doi: 10.1155/2012/345247. Epub 2012 Apr 8.
Sunlight-driven mesoporous BiVO(4) nanorods with monoclinic structure have been successfully synthesized via a simple hydrothermal method. The as-prepared one-dimensional BiVO(4) nanorods exhibited high specific surface area due to their unique mesoporous structure. The mesoporous BiVO(4) nanorods possessed strong photoabsorption properties in the visible light region as well as the ultravisible region, and the band gap was estimated to be ca. 2.18 eV. The photocatalytic activities were evaluated by decolorization of methylene blue under sunlight irradiation. Photocatalytic tests demonstrated that the decolorization rate of as-prepared mesoporous BiVO(4) nanorods was even up to 98.8% in 180 min, much better than that prepared by solid-state reaction (23.1%) and the commercial TiO(2) (Degussa P25) (14.2%) under the same conditions, due to their higher specific surface area and appropriate band gap. Moreover, the unique BiVO(4) nanorods exhibit high stability after five photocatalytic degradation recycles.
通过简单的水热法成功合成了具有单斜结构的日光驱动介孔 BiVO(4)纳米棒。所制备的一维 BiVO(4)纳米棒由于其独特的介孔结构表现出高的比表面积。介孔 BiVO(4)纳米棒在可见光区和紫外光区均具有较强的光吸收性能，带隙约为 2.18eV。通过在阳光照射下亚甲基蓝的褪色来评估光催化活性。光催化测试表明，在相同条件下，所制备的介孔 BiVO(4)纳米棒的脱色率甚至高达 180min 时的 98.8%，明显优于固相反应（23.1%）和商业 TiO(2)（Degussa P25）（14.2%），这归因于其更高的比表面积和合适的带隙。此外，独特的 BiVO(4)纳米棒在五次光催化降解循环后表现出高稳定性。
