Self-assembled flower-like antimony trioxide microstructures with high infrared reflectance performance

详细信息    查看全文

• 作者：Shengsong Ge ; ^{geshengsong@126.com} ; ^{geshs@163.com} ; Xiaokun Yang ; Qian Shao ; Qingyun Liu ; Tiejun Wang ; Lingyun Wang ; Xiaojie Wang
• 关键词：High infrared reflectance ; Sb2O3 ; Morphology ; Growth mechanism
• 刊名：Journal of Solid State Chemistry
• 出版年：2013
• 出版时间：April, 2013
• 年：2013
• 卷：200
• 期：Complete
• 页码：136-142
• 全文大小：1331 K

文摘

A simple hydrothermal process was adopted to self-assembly prepare high infrared reflective antimony trioxide with three-dimensional flower-like microstructures. The morphologies of antimony trioxide microstructures were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high resolution transmission electron microscopy (HRTEM) respectively. It is also found that experimental parameters, such as NaOH concentration, surfactant concentration and volume ratio of ethanol-water played crucial roles in controlling the morphologies of Sb₂O₃ microstructures. A possible growth mechanism of flower-like Sb₂O₃ microstructure was proposed based on the experimental data. UV-vis-NIR spectra verified that the near infrared reflectivity of the obtained flower-like microstructures could averagely achieve as 92 % with maximum reflectivity of 98 % , obviously higher than that of other different morphologies of antimony trioxide microstructures. It is expected that the flower-like Sb₂O₃ nanostructures have some applications in optical materials and heat insulation coatings.