Mn_2O_3微米盘和微球的溶剂热合成及其光催化性能  

Solvent-thermal Preparation of Mn_2O_3 Micro-plates and Micro-spheres and Their Photocatalytic Activity

作　　者：陈友存[1,2] 张锐[1,2] 

机构地区：[1]安庆师范学院化学化工学院,安徽安庆246011 [2]安庆师范学院安徽光电磁功能材料省级实验室,安徽安庆246011

出　　处：《化学世界》2011年第5期262-265,共4页Chemical World

基　　金：国家自然科学基金资助项目(20771006)

摘　　要：在乙二醇体系中,用溶剂热法合成了Mn2O3微米盘和微球。利用X射线粉末衍射(XRD),透射电子显微镜(TEM)和高分辨透射电子显微镜(HRTEM)等方法对产物进行了表征。研究了反应时间对产物结构和形貌的控制作用,并讨论了可能的反应机理。在紫外灯的照射下,研究了产物对亚甲基蓝溶液的降解作用。结果表明产物对亚甲基蓝溶液有较好的催化降解作用。Mn2O3 micro-plates and micro-spheres were fabricated on a large scale by a simple solvent-thermal method in the presence of ethylene glycol（EG）.The products were characterized by powder X-ray diffraction（XRD）,transmission electron microscopy（TEM）,high-resolution TEM（HRTEM）,and the results showed that the multilayered nano-plates were composed of large quantity of nanoparticles.Reaction time was employed to control the product morphologies and structures,and a possible formation mechanism was proposed.The photocatalytic activity of the products was examined by measuring the photodegradation of methylene blue solution under ultraviolet radiation.The result shows that our products have a good photocatalytic activity.

关 键 词：MN2O3 纳米结构 溶剂热合成 光催化性能 

分 类 号：TQ137.1[化学工程—无机化工]