一种由Keggin型多酸和铜配合物构筑的难溶性三维杂化材料的合成、结构及光催化性能  

Synthesis,structure and photocatalytic property of an insoluble 3D hybrid material based on Keggin polyoxometalates and CuI-pyrazine coordination compounds

作　　者：单冰倩 杨宏训[1] 张雷[1] 

机构地区：[1]江苏科技大学环境与化学工程学院,镇江212018

出　　处：《江苏科技大学学报（自然科学版）》2016年第5期498-502,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：教育部归国留学基金资助项目(2015311);江苏省高校自然科学基金资助项目(14KJB150007);江苏省大学生本科创新创业计划项目

摘　　要：多金属氧酸盐（POMS）与TiO_2半导体氧化物具有相似的化学组成和电子属性,即有d0构型的过渡金属原子和氧原子,能光催化降解有机污染物.但其高的溶解度限制了它潜在的应用.文中采用水热法制备一种由Keggin型多酸建筑模块和铜配合物构筑的难溶性三维杂化材料——[Cu（PZ）]_3[PW_（12）O_（40）]（PZ=pyrazine,CPW）.用单晶X-衍射分析、元素分析、FTIR、TG等对材料的结构和成分进行了表征,并对其进行了光催化性能测试.结果表明：杂化材料CPW展现了一个（4,6）链接的三维结构,具有新的拓扑（4~6·4~7）_3（4~6·6~6·~83）.该难溶性多酸杂化材料具有较好的光催化活性,且循环性能良好.Polyoxometalates（ POMs） are very similar to TiO_2 semiconductor oxide in light absorption and the electrochemical band-edge positions,and can decompose various environmental pollutants. However,high solubility in solutions impedes its potential applications. In this paper,an insoluble organic-inorganic hybrid material constructed from Keggin POM building blocks and copper-pyrazine coordination compounds,[Cu（ PZ） ]_3[PW_（12）O_（40）]（ PZ = pyrazine,CPW）,has been synthesized and characterized by elemental analyses,IR,TG,and Xray single crystal diffraction. Complex CPW not only exhibits a（ 4,6）-connected 3D framework with new topology（ 4~6·4~7）_3（ 4~6·6~6·8~3）,but also shows good photocatalytic activity and repeatability.

关 键 词：多金属氧酸盐 铜配合物 光催化 

分 类 号：O69[理学—化学]