State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China.
J Colloid Interface Sci. 2010 Apr 15;344(2):247-50. doi: 10.1016/j.jcis.2010.01.019. Epub 2010 Jan 18.
A simple method based on sol-gel method was developed to prepare vanadium ions doped TiO(2) nanocrystalline at low temperature. Thus-obtained vanadium doped TiO(2) was proved to be V(x)Ti(1-x)O(2) solid solution. Doping vanadium could enhance the formation of stable phase. Its optical absorption spectrum shows a red shift to 445 nm. Photodegradation experiments suggest that thus-prepared vanadium doped TiO(2) nanocrystalline can be excited by visible light and is a good photocatalyst under daylight. These properties are the same as the vanadium doped TiO(2) prepared under high temperature conditions (> or = 350 degrees C). However, in the present work, the vanadium doped TiO(2) crystal particle is very uniform and fine, about 5 nm. It is much smaller than the production prepared under high temperature.
一种基于溶胶-凝胶法的简单方法被开发用来在低温下制备钒离子掺杂的 TiO(2)纳米晶。所得到的掺杂钒的 TiO(2)被证明是 V(x)Ti(1-x)O(2)固溶体。掺杂钒可以增强稳定相的形成。其光吸收光谱显示出 445nm 的红移。光降解实验表明，所制备的钒掺杂 TiO(2)纳米晶可以被可见光激发，并且在日光下是一种良好的光催化剂。这些性质与在高温条件下（>=350°C）制备的钒掺杂 TiO(2)相同。然而，在本工作中，钒掺杂的 TiO(2)晶体颗粒非常均匀和细小，约为 5nm。它比在高温下制备的产物小得多。
