| 离子液体[C_6mim]Br中TiO_2气凝胶的制备 |
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| 引用本文： | 吴瑞雪,于春玲,戴洪义,付颖寰,董晓丽,高学明.离子液体[C_6mim]Br中TiO_2气凝胶的制备[J].大连工业大学学报,2013(2):115-117. |
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| 作者姓名： | 吴瑞雪 于春玲 戴洪义 付颖寰 董晓丽 高学明 |
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| 作者单位： | 大连工业大学轻工与化学工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(21243005);辽宁省自然科学基金资助项目(201102111) |
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| 摘 要： | 以钛酸四丁酯为前驱体,离子液体C6mim]Br为催化剂及模板剂,在低温、常压条件下制备了TiO2气凝胶。利用扫描电子显微镜(SEM)、X射线衍射(XRD)及N2吸附/脱附法对结构进行了分析。结果表明,TiO2气凝胶为锐钛矿晶体结构,平均孔径为9.7nm,比表面积为264.3m2/g,孔体积为0.513cm3/g。以活性蓝为模拟污染物,紫外汞灯为光源,研究了TiO2气凝胶的光催化活性。结果表明,TiO2气凝胶具有优于P25的光催化活性。
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| 关 键 词： | 离子液体 TiO2气凝胶 光催化 |
Preparation of TiO_2 aerogel in ionic liquid [C_6mim]Br |
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| WU Ruixue,YU Chunling,DAI Hongyi,FU Yinghuan,DONG Xiaoli,GAO Xueming.Preparation of TiO_2 aerogel in ionic liquid [C_6mim]Br[J].Journal of Dalian Dalian Polytechnic University,2013(2):115-117. |
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| Authors: | WU Ruixue YU Chunling DAI Hongyi FU Yinghuan DONG Xiaoli GAO Xueming |
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| Affiliation: | School of Light Industry and Chemical Engineering,Dalian Polytechnic University,Dalian 116034,China |
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| Abstract: | The TiO2 aerogels were synthesized at low temperature and ambient pressure with tetrabutyl titanate as precursor,ionic liquid C_6mim]Br as catalyst and template.The results by scanning electron microscopy(SEM),X ray powder diffraction(XRD) and N2 adsorption-desorption showed that the obtained TiO2 aerogels were in anatase structure.Such porous structure shows average pore size 9.7 nm,specific surface area 264.3 m2/g and pore volume 0.513 cm3/g.The photocatalytic activity of TiO2 aerogels were analyzed with reactive blue as simulation pollutants and ultraviolet mercury lamp as photosource.The results showed its higher photocatalytic activity than P25. |
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| Keywords: | ionic liquids TiO2 aerogel catalysis |
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