摘要
通过溶胶-凝胶技术将H6P2W18O62负载到载体SiO2上,制备了负载型光催化材料H6P2W18O62/SiO2。采用红 外光谱(FT-IR)、电感耦合等离子原子发射光谱(ICP-AES)、固体核磁共振波谱(31P MAS NMR)、N2吸附测定和 透射电子显微镜(TEM)等手段,对该材料的组成、结构、表面物理性质和形貌进行了表征。结果表明,上述材 料中具有光催化活性的H6P2W18O62扔保持着最初的Dawson结构。同时,该负载型光催化材料还具有纳米孔结构和 较大的比表面积。
The photoeatalytie nano-material H6P2W18O62SiO2 was prepared via sol-gel method. ICP-AES, FT-IR, TEM and nitrogen adsorption analysis were used to characterize composition, structure, morphology and surface physieoehemieal properties of as-prepared solid photoeatalytie material. The results indicated that the composite retained the Dawson structure. Moreover, the composite exhibited mieoporous structures and the BET surface areas of the solid photoeatalytie material have been improved.
出处
《齐齐哈尔大学学报（自然科学版）》
2005年第4期6-9,共4页
Journal of Qiqihar University(Natural Science Edition)
基金
国家自然科学基金资助项目(20071007)
关键词
溶胶-凝胶技术
杂多酸
光催化材料
孔道结构
sol-gel method
polyoxometalate
photoeatalytie material
porous structure
