ZnO一维纳米材料的热蒸发法制备及光学性能研究  

Synthesis and Optical Properties of ZnO One Dimensional Nanomaterials by Thermal Evaporation

作　　者：靳福江[1] 殷莉[2] 李珍[1] 李飞[1] 魏彦芳[1] 

机构地区：[1]中国地质大学材料科学与化学工程学院,武汉430074 [2]四川省地质矿产勘查开发局区域地质调查队岩矿测试中心,成都610213

出　　处：《硅酸盐通报》2008年第4期710-714,共5页Bulletin of the Chinese Ceramic Society

基　　金：湖北省铁电压电材料与器件重点实验室(湖北大学)开放基金资助项目;中国地质大学优秀青年教师资助计划资助项目;中国地质大学(武汉)研究生学术探索与创新基金(CUGYJS0717)

摘　　要：以Zn粉为原料,在1050℃空气气氛中采用热蒸发法成功制备了ZnO一维纳米材料。探讨了覆盖瓷舟对ZnO纳米晶的形成及其形貌和光学性能的影响。X射线衍射(XRD)分析表明,产物是纯六方纤锌矿结构的ZnO;扫描电子显微镜(SEM)形貌观察显示,产物为ZnO纳米线、微纳米棒和四角针状ZnO;光致发光谱(PL)表明ZnO一维纳米材料主要有3个蓝光发光带;紫外-可见光光谱(UV-vis)显示ZnO一维纳米材料能有效的催化降解次甲基蓝溶液。ZnO one dimensional nanomaterials were prepared by vaporizing pure zinc powder without catalyst at temperature of 1050 ℃ in air. The influences of covering with ceramic boat on the formation, structures and optical properties of ZnO nanocrystals were studied. X-ray diffraction （XRD） indicated that the product was pure phase zinc oxide. The morphologies of the ZnO nanowires, microo-nanorods, nanotetrapods were characterized by scanning electron microscopy （SEM）. Photoluminescence spectra of ZnO one dimensional nanomaterials at room temperature were measured and showed 3 blue luminous zones. Phonocatalytic degradation ratio of methylene blue was over 93.11% adding ZnO prepared by covering with ceramic boat,and over 80% adding ZnO prepared by direct thermal evaporation.

关 键 词：ZnO一维纳米材料 光致发光 光催化 

分 类 号：TB383.1[一般工业技术—材料科学与工程]