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离子液体中TiO_2-SiO_2复合气凝胶的制备 被引量:2

Preparation of TiO_2-SiO_2 composite aerogels in ionic liquids
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摘要 采用溶胶-凝胶法,正硅酸乙酯(TEOS)和钛酸丁酯(TBT)为硅源和钛源,以离子液体1-丁基-3-甲基咪唑溴盐([HMIM]Br)为模板剂,常压干燥制备了块状TiO2-SiO2复合气凝胶。通过SEM、TEM、XRD、FT-IR及N2吸附-脱附法对复合气凝胶的结构进行了表征,并对其光催化性能进行相关研究。制备的n(Ti)∶n(Si)∶n(ILs)=2∶1∶0.5的TiO2-SiO2复合气凝胶具有多孔结构,其孔径为3.216nm,孔体积为0.418cm3/g,比表面积为519.4m2/g,且对罗丹明B的光降解性能明显高于P25。 The block TiO2-SiO2 composite aerogels were prepared with tetraethyl orthosilicate and tetraethyl titanate as Si resource and Ti resource by Sol-Gel method and using [HMIM]Br as a template. The microstructure of the composite aerogels was characterized by SEM, TEM, XRD, FT-IR and N2 adsorption-desorption measurement. The results indicated that the TiOz-SiO2 composite aerogels obtained at n(Ti) : n(Si) : n(ILs) = 2 : 1 : 0.5 exhibited a porous structure, in which the pore size and pore volume are 3. 216 nm and 0. 418 cm3 /g and the specific surface area is 519.4 m2/g. The photocatalytic degradation ratio of rhodamine B is higher than that of P25.
出处 《大连工业大学学报》 CAS 北大核心 2013年第1期43-46,共4页 Journal of Dalian Polytechnic University
关键词 离子液体 TIO2-SIO2 光催化 ionic liquids TiO2-SiO2 photocatalysis
作者简介 李艳春(1985-),男,硕士研究生 通信作者:于春玲(1966-),女,副教授.
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  • 1陈希慧,潘艳坤,黄初升,罗思琴,蔡民廷.TiO_2-SiO_2光催化纸业废水有色有机物的降解[J].分子催化,2005,19(3):172-176. 被引量:1
  • 2王平,徐群,张沛.溴化1-己基-3-甲基咪唑离子液体的制备[J].齐齐哈尔大学学报(自然科学版),2007,23(3):1-3. 被引量:5
  • 3王靖宇,刘志洪,何治柯,蔡汝秀.锐钛矿型纳米氧化钛及其复合材料的低温制备技术[J].化学进展,2007,19(10):1495-1502. 被引量:6
  • 4YOO K S,LEE T G,KIM J.Preparation and characterization of mesoporous TiO2particles by modified sol-gel method using ionic liquids[J].Microporous and Mesoporous Materials,2005,84(1/2/3):211-217.
  • 5YAO Nan,CAO Sheng-li,YEUNG K L.Mesoporous TiO2-SiO2aerogels with hierarchal pore structures[J].Microporous and Mesoporous Materials,2009,117(3):570-579.
  • 6HE Chenxu,TIAN Baozhu,ZHANG Jinlong.Thermally stable SiO2-doped mesoporous anatase TiO2with large surface area and excellent photocatalytic activity[J].Journal of Colloid and Interface Science,2010,344(2):382-389.
  • 7INGALE S V,SASTRY P U,WAGH P B,et al.Synthesis and micro structural investigations of titania-silica nano composite aerogels[J].Materials Chemistry and Physics,2012,135(2/3):497-502.
  • 8吉锦秀,杨文忠,刘山,王锦堂.离子液体中间体的合成及表征[J].精细石油化工,2007,24(6):55-57. 被引量:5
  • 9YOO K,CHOI H,DIONYSIOU D D.Ionic liquid assisted preparation of nanostructured TiO2particles[].Chemical Communications.2004
  • 10Nayak, J. P,Bera, J.Preparation of Silica Aerogel by Ambient Pressure Drying Process using Rice Husk Ash as Raw Material[].Trans Indian Ceram S.2009

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