低温液相合成路线制备六方相MoO_3纳米棒  

SYNTHESIS OF MoO_3 NANORODS VIA A SOLUTION APPROACH AT A LOW TEMPERATURE

作　　者：杨保俊[1] 周阿洋[1] 柴多里[1] 王磊[1] 周涛[1] 

机构地区：[1]合肥工业大学化工学院可控化学与材料化工安徽省重点实验室,安徽合肥230009

出　　处：《中国钼业》2009年第2期29-32,共4页China Molybdenum Industry

基　　金：合肥工业大学中青年科技创新群体培养计划资助项目(103-037016)

摘　　要：以钼酸钠为原料,通过简单的液相脱水反应,首次在常压、较低温度下大规模合成了介稳的六方相MoO3纳米棒。用x-射线衍射,透射电子显微镜、场发射扫描电子显微镜、高分辨透射电子显微镜等对所制备的样品进行表征。结果表明,所制备的样品为纯的六方相MoO3纳米棒,直径约100～400nm,长度可达几个微米,纳米棒沿着六方相MoO3(101)面的法线方向生长。同时,实验结果表明,所制备的MoO3样品对亚甲基蓝溶液表现出良好的光催化降解性能,实验条件下,最大脱色率可达到94.7%。The hexagonal MoO3 nanorods have been successfully synthesized on a large scale for the first time via a simple solution approach under mild synthesis conditions. The material was investigated by a variety of techniques, including x- ray powder diffraction （XRD）, transmission electron microscopy （TEM）, field emission scanning electron microscopy （SEM）, and high -resolution transmission electron microscopy （HRTEM）. The results indicated that the prepared samples were hexagonal MoO3 nanorods with diameters and lengths in the range of 100 -400 nm and 1 -6 μm respectively. HRTEM image reveals that the nanotube was of single crystal and growth direction along the normal of （ 101 ） direction. In addition, the properties of the as - synthesized nanorods were investigated as photo - catalyst in degradation of methyleneblue. The result shows that the decoloration - rate can reach to 94. 7% under our experiments.

关 键 词：纳米棒 三氧化钼 光催化降解 亚甲基兰 

分 类 号：TB383.1[一般工业技术—材料科学与工程]