BiVO4的水热合成及其光催化分解水产氧性能研究  

Study on hydrothermal preparation of BiVO4 and its property of O2 evolution efficiency from photocatalytic splitting water

作　　者：柯丁宁[1] 彭天右[1] 马亮[1] 程海威[1] 

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《功能材料》2007年第A07期2524-2525,共2页Journal of Functional Materials

基　　金：国家高技术研究发展计划（863计划）资助项目（2006AA03Z344）;国家自然科学基金资助项目（20573078）湖北省杰出人才基金资助项目（2006ABB003）

摘　　要：以无机盐为前体，采用表面活性剂为模板，水热法制备了具有较高含量的单斜晶系BiVO4．实验结果表明，随着水热温度的升高，产物中单斜晶系BiVO4的含量增大，其光催化分解水产氧的效果越好．讨论了制备的BiVO4在牺牲试剂Fe（NO3）3存在下的产氧效率及其与产物晶型的关系。在优化的实验条件下获得了较高的光催化分解水产氧效率。BiVO4 with relative higher content of monoclinic crystal phase was synthesized via hydrotherrnal process by using inorganic salts as precursors and cetyltrimethylammonium bromide （CTAB） as surfactant directing agent. The effect of hydrothermal temperatures on the crystal phases of BiVO4 was investigated in detail, and found that the content of monoclinic crystal phase in the product increase upon enhancing the hydrothermal temperature, and the O2 evolution efficiency from photocatalytic splitting water over the obtained BiVO4 is also improved simultaneously. The crystal phases of BiVO4 have obvious impacts on the O2 evolution efficiency in the presence of sacrifice reagent （Fe（NO3）3）.

关 键 词：钒酸铋 水热合成 单斜晶系 光解水产氧效率 

分 类 号：TQ426[化学工程]