MoO_3纳米材料的形貌控制合成及其可见光催化性能研究  

Shape-controlled synthesis and visible-light photocatalytic property of MoO_3 nanomaterial

作　　者：刘立新[1] 杜卫民[1] 朱晓燕[1] 郝雅鸣 

机构地区：[1]安阳师范学院化学化工学院,安阳455002

出　　处：《化工新型材料》2015年第6期184-187,共4页New Chemical Materials

基　　金：河南省科技厅重点科技攻关项目(132102310371);河南省安阳市科技局科技攻关项目(安科[2011]-工业公关-57)

摘　　要：通过转化法和水热法分别合成制备了片状和棒状的MoO3纳米材料。运用X-射线衍射仪(XRD)、场发射扫描电镜(FESEM)、固体紫外-可见光谱、氮气吸脱附等方法对产物的物相、形貌、光学性质和比表面积进行了表征。研究了具有不同形貌的MoO3纳米材料对亚甲基兰溶液的光催化降解性能。结果表明:当片状MoO3纳米材料的含量为0.1g/L时,在可见光照射120min后,亚甲基兰溶液的最大脱色率可达到88.85%,而棒状MoO3的光催化效果则较差,表明材料的形貌对其光催化应用具有重要影响。因此,片状MoO3纳米材料在环境保护、废水处理方面具有较好的应用前景。Sheet-like and rod-like MoO3 nanomaterials were successfully prepared by conversion and hydrothermal methods,respectively.The phase,morphology,optical properties and specific surface area of products were characterized by X-ray diffraction（XRD）,field emission scanning electron microscopy（FESEM）,solid UV-vis spectroscopy and N2absorption-desorption,respectively.The photocatalytic degradation properties on methylene blue of products with different morphologies were also investigated.Results showed that the maximum decolorization rate can reach 88.85% after the methylene blue solution was irradiated by the visible light for 120 minutes when the content of sheet-like MoO3 nanomaterials was 0.1g/L.But the photocatalytic performance of rod-like MoO3 was much poorer.This demonstrated that the morphology of nanomaterials had important influences for their photocatalytic applications.Therefore,Sheet-like MoO3 nanomaterials had better application prospect in the environment protection and treatment of the waste water.

关 键 词：MOO3 纳米材料 可见光 光催化 

分 类 号：TQ136.12[化学工程—无机化工] O643.36[理学—物理化学]