粉末冶金技术2012，Vol.30Issue(1)：8-11,27,5.
温度对水热法合成WO3亚微米棒形貌和光吸收特性的影响
Influence of the temperature on the optical absorption properties and the morphologies of WO3 submicrorods synthesized by the hydrothermal method
摘要
Abstract
W03 submicrorods were synthesized in acid by the hydrothermal method with sodium tungstate as tungsten source and potassium sulphate as auxiliary salt. The samples were characterized by X-ray diffraction ( XRD) , scanning electron microscope ( SEM) , transmission electron microscope (TEM) and selected area electron diffraction ( SAED). The results of the analysis turn out that with the increase of the reaction temperature and the pH value, WO3 submicrorods are to be obtained more easily. Crystal WO3 submicrorods of less than 200nm in the radial size can be prepared at 240℃ for 48h with pH of 1.5 by the hydrothermal method. The crystal WO3 submicrorods are homogeneous in the radial size. The analysis of ultraviolet-visible spectroscopy (UV-VIS) confirms that with the increase of the reaction temperature and the pH value ,the absorbent power of ultraviolet light of as-synthesized WO3 enhance gradually. Especially, crystal WO3 submicrorods take on the good absorbent power of ultraviolet light.关键词
钨酸钠/水热法/WO3亚微米棒/光吸收特性Key words
sodium tungstate/ hydrothermal method/ WO3 submicrorods/ optical absorption property引用本文复制引用
傅小明,刘照文..温度对水热法合成WO3亚微米棒形貌和光吸收特性的影响[J].粉末冶金技术,2012,30(1):8-11,27,5.基金项目
宿迁市指导性科技计划项目(Z201008) （Z201008）
江苏省高校自然科学研究基金资助项目(11KJB450001) （11KJB450001）
