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SiW_(11)/介孔TiO_2杂化材料的制备与表征

Preparation and Characterization of Hybrid Tungstosilicate-Mesoporous Titanium Dioxide
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摘要 将缺位Keggin结构多金属氧酸盐SiW11共价键联于介孔二氧化钛分子筛表面上,制备了SiW11/介孔TiO2杂化材料。用红外、低温N2吸附、TEM等对样品进行了表征。结果表明,键联于介孔TiO2表面的多金属氧酸盐SiW11保留完整的Keggin结构。较介孔二氧化钛相比,杂化样品的比表面积和孔容均有所减少。 The hybrid tungstosilicate - mesoporous titanium dioxide was synthesized by combination monovaeant Keggin - type SiW11 on the surface of mesoporous TiO2. The as - obtained SiW11/TiO2 composites were characterized by FT- IR, TEM and N2 adsorption- desorption. The results indicate that the combined SiW11 possesses the integrated Keggin structure. Compared with the original substances, the surface area and pore volume of the hybrid samples were reduced.
作者 刘红霞
机构地区 盐城工学院化学与生物工程学院
出处 《盐城工学院学报（自然科学版）》 CAS 2008年第4期61-63,76,共4页 Journal of Yancheng Institute of Technology:Natural Science Edition
关键词 多金属氧酸盐 KEGGIN结构 介孔TIO2 化学固定 polyoxometalate Keggin anion mesoporous titanium dioxide chemical fixation
分类号 O611 [理学—无机化学]
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参考文献7

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盐城工学院学报（自然科学版）
2008年 第4期

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