Abstract: The nano 2NiO / hollow glass sphere composite particles were successfully prepared by homogeneous
precipitation. Scanning elect ron microscope ( SEM), X-ray diffractometer(XRD) and energy dispersion X-ray
(EDS) results indicate that a uniform NiO coating is found on the surface of the hollow glass spheres. The coating is composed of threadlike NiO crystal with face-center-cubic (fcc) crystalline structure. The diameter of NiO crystal in composite particles is about 14 nm. FTIR results show that the composite particles have bet ter infrared absorption characteristic in both far and near-infrared areas than hollow glass spheres.