摘要
通过二水醋酸锌与吡啶200℃溶剂热反应24h制备出ZnO空心微球。采用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对所制备样品进行了表征。ZnO空心微球形成机理主要遵循Ostwald老化机理。在室温下研究了ZnO空心微球的光催化性能。实验结果表明ZnO空心微球是光降解酸性大红的有效催化剂,其催化过程为准一级反应。
Hollow ZnO mirospheres were prepared via a facile solvothermal reaction of Zn（Ac）2- 2H20 with pyridine solution at 200 ℃ for 24 h. The products were characterized by means of X-ray dif- fraction （XRD） and scanning electron microscopy （SEM）. The hollow microspheres were formed via an Ostwald ripening process. Photocatalytic properties of hollow ZnO microspheres were studied at the room temperature. The results indicate that the hollow microspheres display high photocatalytic activity in photodegraclation of acid scarlet. The photodegradation of acid scarlet catalyzed by the ZnO micro- spheres is a pseudo first-order reaction.
出处
《咸阳师范学院学报》
2016年第4期55-58,共4页
Journal of Xianyang Normal University
基金
国家自然科学基金项目(21305117)
陕西省自然科学基金项目(2012JQ2014)
陕西省教育厅科研基金项目(2010JK894)
咸阳师范学院科研基金项目(14XSYK018)
关键词
ZnO空心微球
溶剂热
光催化性能
Hollow ZnO microspheres
solvothermal reaction
photocatalytic properties
