摘要
以钨酸钠和盐酸为主要原料，以溶胶-凝胶法制备了具有较高光致变色敏感性的稳定WO3溶胶，并应用SC80C型全自动色差仪对溶胶进行了色度表征。使用漫反射紫外一可见吸收光谱分光光度计和TEM分析了WO3光致变色溶胶的吸收光谱和溶胶的颗粒形态；同时对WO3干溶胶粉体颗粒进行XRD表征。主要得出以下结论：制备稳定WO3光致变色溶胶的最佳工艺条件为：溶液体系的pH值为1．6；丙醇的加入量为初始Na2WO4溶液的15Vol％；乙酰丙酮的加入量为初始Na2WO4溶液的1．5Vol％。
The stable photochromic WO3 sol had been prepared by the of sol-gel method using aqueous Na2WO4 and HCl as preparation materials. The photochromic property of WO3 sol was studied d by SC-80C colorimeter. Furthermore, the WO3 sol was also characterized by ultravioletovisible diffuse reflection spectroscopy, X - ray diffraction （XRD） and transmission electron microscopy （TEM）. It was shown that the asasynthesized WO3 sol exhibited excellent photochromic performance. The optimum preparation conditions were as follows： the pH value of sol was about 1.6; the propanol content was 15 vol% to the original volume of Na2WO4 ; acetylacetone content was 1.5 vol% to the original volume of Na2WO4.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2007年第E01期188-192,共5页
Journal of Wuhan University of Technology
基金
中国地质大学优秀青年教师资助计划（CU0QNL0318）.
