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| SiW11/介孔TiO2杂化材料的制备与表征 |
| Preparation and Characterization of Hybrid Tungstosilicate-Mesoporous Titanium Dioxide |
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| DOI：10.3969/j.issn.1671-5322.2008.04.018 |
| 中文关键词: 多金属氧酸盐 Keggin结构 介孔TiO2 化学固定 |
| 英文关键词: polyoxometalate Keggin anion mesoporous titanium dioxide chemical fixation |
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| 中文摘要: |
| 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. |
| 英文摘要: |
| The hybrid tungstosilicate-mesoporous titanium dioxide was synthesized by combination monovacant 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. |
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