Cooling Surface by Co:ZnO Infrared Pigment
摘要
In the present article, we have studied crystal structure, the morphology of Zn1−xOCox nanopowders and its feasibility as an infrared absorber. The synthesized pigments were analysed using powder X-ray diffraction, SEM, FTIR, near-infrared reflection spectroscopy, etc. The results indicated that Co2+ partially substituted Zn2+ ion at elevated temperature 1000 °C annealing, which shows good absorption in the 1200–1700 nm range. The inclusions of pigment in white cement and coated on cotton fabric reveal no change in pigment properties and significantly reduce the surface temperature. The synthesized materials can be used on various surfaces to control the transmission of infrared radiation.