【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。更多还原

【Abstract】 Hollow ZnO mirospheres were prepared via a facile solvothermal reaction of Zn（Ac）₂·2H₂O with pyridine solution at 200 ℃ for 24 h. The products were characterized by means of X-ray diffraction（XRD） and scanning electron microscopy（SEM）. The hollow microspheres were formed via anOstwald 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 photodegradation of acid scarlet. The photodegradation of acid scarlet catalyzed by the ZnO microspheres is a pseudo first-order reaction.更多还原