Keggin结构钨钼铝酸杂多酸的制备及性能研究  

Study on Synthesis and Properties of Keggin Structure Tungsten-molybdenum-aluminate Heteropoly Acid

作　　者：李月 贾晓云 石顺勇 吕晓姝[1] 王溪尧 LI Yue;JIA Xiao-yun;SHI Shun-yong;LV Xiao-shu;WANG Xi-yao(School of biomedical and chemical engineering,Liaoning institute of science and technology,Benxi Liaoning 117004,Chian)

机构地区：[1]辽宁科技学院生物医药与化学工程学院,辽宁本溪1170004

出　　处：《辽宁科技学院学报》2021年第5期7-10,共4页Journal of Liaoning Institute of Science and Technology

基　　金：辽宁科技学院大学生创新创业项目“钨钼铝三元杂多酸-PVA/PVP-TiO 2复合薄膜的光致变色性能的研究”(202011430063).

摘　　要：文章采用逐步滴加酸、溶解-冷冻、离子交换树脂制成钨钼铝酸杂多酸。用紫外光谱、红外光谱和XRD表征了A1M_(0)W_(11)O_(39)^(5-)的阴离子Keggin结构特征。热重分析确定杂多酸的化学式为H_(3)AlW_(11)MoO_(39)·8.5H_(2)O,并对其光催化性能,即光致变色的过程进行了探讨。结果表明,杂多酸H_(3)AlW_(11)MoO_(39)·8.5H_(2)O的光致变色具有可逆性的,且吸光度较好。In this paper,tungsten-molybdenum-aluminate heteropoly acid was prepared following procedures including gradually adding acid,dissolving-freezing as well as ion exchange resin.The structural characteristics of AlMoW_(11)O_(39)^(5-) anion Keggin were characterized by UV,IR and XRD.The chemical formula of the heteropoly acid was determined by thermogravimetric analysis as H_(3)AlW_(11)MoO_(39)·8.5H_(2)O.Also,the photocatalytic performance of H_(3)AlW_(11)MoO_(39)·8.5H_(2)O was investigated and discussed,showing that the photochromic performance of H_(3)AlW_(11)MoO_(39)·8.5H_(2)O is reversible with a fine absorbance.

关 键 词：KEGGIN型杂多酸 钨钼铝 合成 光催化 

分 类 号：O643.32[理学—物理化学]