【摘要】 使用四针状ZnO纳米晶须作为催化剂,通过光还原法制备Cu/ZnO复合纳米粒子。采用XRD,TEM对样品进行表征。当少量Cu沉积在ZnO晶须表面上时,复合纳米粒子仍为四针状,且由ZnO和Cu2O组成。当大量的Cu沉积在ZnO上时,复合纳米粒子呈颗粒状,且由ZnO,Cu5Zn8和Cu2O三相组成。更多还原

【Abstract】 The Cu/ZnO composite nanoparticles were prepared by photo-reduction method by using the photocatalysis characteristic of its matrix materials. The as-prepared samples were characterized by XRD and TEM. When a small quantity of Cu deposits on the surface of ZnO nanowhiskers, the composite nanoparticles maintain a tetrapod shape. In this case, Cu₂O is found on the surface of the ZnO nanowhiskers. When a mass of Cu are deposited on ZnO nanowhiskers, Cu₂O and Cu₅Zn₈ are segregated on the center of the ZnO nanowhiskers.更多还原