YbMnxOy纳米结构的可控制备及光催化性能研究  

Controllable preparation of YbMnxOy nanostructures and photocatalytic performance

作　　者：张通 袁孝友[1] ZHANG Tong;YUAN Xiaoyou(School of Chemistry&Chemical Engineering,Anhui University,Hefei Anhui 230039,China)

机构地区：[1]安徽大学化学化工学院,安徽合肥230601

出　　处：《阜阳师范学院学报（自然科学版）》2020年第1期28-34,共7页Journal of Fuyang Normal University(Natural Science)

基　　金：国家自然科学基金项目(51472001)资助。

摘　　要：在阳极氧化铝(AAO)模板中,利用负压抽滤及化学共沉淀法,可控合成了YbMnxOy纳米管和纳米线阵列结构。其形貌和结构分别用扫描电子显微镜(SEM)、透射电子显微镜(TEM),选区电子衍射(SAED)和X射线衍射(XRD)表征。结果表明:上述纳米线和纳米管阵列形貌均一,为非晶结构。Yb3+因具有丰富的4f轨道电子构型,Mn2+可与其f轨道形成络合物,使YbMnxOy纳米管和纳米线阵列拥有良好的光催化性能。YbMnxOy纳米管独特管状结构和较大的比表面积使其对刚果红水溶液的光催化降解效率高于YbMnxOy纳米线,且催化剂重复使用4次后催化效果仍较好。The YbMnxOy nanotube and nanowire array structures were controllable synthesized in anodic aluminum oxide(AAO)template by vacuum filtration and chemical coprecipitation.The morphology and structure were characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),selected area electron diffraction(SAED)and X-ray diffraction(XRD),respectively.The results showed that the nanowire arrays had a uniform morphology and an amorphous structure.Yb3+has a rich 4f orbital electronic configuration,and Mn2+can form a complex with its f orbital,which makes YbMnxOynanotubes and nanowire arrays have good photocatalytic properties.The unique tubular structure and large specific surface area of YbMnxOy nanotubes make the photocatalytic degradation efficiency of Congo red aqueous solution higher than that of YbMnxOy nanowires,and the catalytic effect is still good after repeated use of the catalyst four times.

关 键 词：纳米管阵列 纳米线阵列 AAO模板 刚果红 光催化 

分 类 号：O616[理学—无机化学]