摘要
以钨酸钠为原料,采用水热法制备NaxWO3.nH2O(x<1)青铜粉体,利用XRD、XPS、IR和UV-V is对粉体进行了表征和光致变色性质研究。结果表明,吸附醇后的粉体经光照后,粉体颜色由淡蓝色变为蓝色。XPS分析结果表明,光照前后W5+数目增多。粉体的变色效率较高,可逆性较好,且受所处醇环境影响较大,在丙醇和多元醇环境下粉体具有更好的光致变色性能。
Under hydrothermal conditions, the NaxWO3 · nH2O （x 〈 1 ） powder were obtained by using Na2WO4 · 2H2O as the starting material. The products were characterized by XRD, XPS and FT - IR methods. The photo- chromic property of the powder was studied by UV - Vis. The results show that after UV irradiation under the aleohol ambience, the color of the powder turned from cambridge blue to dark blue and the number of W^5＋ increased. The powder exhibits good photochromic property which affected by the alcohols and it has better photochromic ability when the propyl alcohol or polyhydric alcohols was absorbed.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2008年第6期755-758,共4页
Journal of Natural Science of Heilongjiang University
基金
新世纪优秀人才支持计划资助项目
黑龙江省杰出青年基金资助项目
哈尔滨市青年科学基金资助项目(2005AFQXJ059)
黑龙江省教育厅科学计划项目(11513074)
关键词
钨青铜
光致变色
水热合成
tungsten oxide bronze
photochromic property
hydrothermol synthesis
