多孔雪花状氧化锌分级纳米结构的制备、表征及其光催化性能研究  

Synthesis,characterization and photocatalytic performance of porous ZnO with snow-like hierarchical structure

作　　者：张丽惠[1] 李勇[1] 

机构地区：[1]滁州学院材料与化学工程学院,安徽滁州239000

出　　处：《化学研究与应用》2015年第3期329-334,共6页Chemical Research and Application

基　　金：国家自然科学基金(21073116)项目资助;安徽省应用化学省级重点学科建设项目(200802187C)项目资助;滁州学院科研启动基金(2012qd12)项目资助

摘　　要：在H2O和乙二醇(EG)构成的二元体系中,通过Zn AC2与NH4F和H2O的水热反应制备了六角雪花状Zn OHF。Zn OHF在空气中退火,制备出了由单晶Zn O纳米片构建的多孔六角雪花状Zn O。用X射线衍射(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM)及其热重等多种手段对产物进行结构表征,并提出了可能的化学反应。以甲基橙和酸性大红为例,研究了其光催化性能,结果表明,多孔雪花状Zn O是一种有效的光催化剂。Porous Zn O with snow-like hierarchical structure were prepared by calcining the Zn OHF in air,which was synthesized via a hydrothermal reaction of Zn AC2 with NH4F in H2O-ethylene glycol（ EG） binary solution. The products were characterized by means of X-ray diffraction（ XRD）,scanning electron microscopy（ SEM）,transmission electron microscopy（ TEM）,and thermal analysis. The snow-like Zn O architecture consists of six nanoflakes assembled from smaller single crystalline Zn O nanoflakes. The possible chemistry reactions were proposed. The photocatalytic performance of the as-prepared snow-like Zn O hierarchical structure was studied. The results show the as-prepared porous Zn O are effective photocatalysts for the degradation of methyl orange and acid scarlet.

关 键 词：雪花状ZnO 多孔 化学反应 光催化 

分 类 号：O614.121[理学—无机化学]