| 离子液体@TiO_2纳米复合材料的制备及其光催化性能 |
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| 引用本文： | 于宗龙,贾春晓,路鑫,韩海港,辛炳炜.离子液体@TiO_2纳米复合材料的制备及其光催化性能[J].应用化学,2016,33(4):459-465. |
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| 作者姓名： | 于宗龙 贾春晓 路鑫 韩海港 辛炳炜 |
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| 作者单位： | 德州学院,山东高校配位化学与功能材料重点实验室 山东 德州 253023 |
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| 基金项目： | 国家大学生创新创业训练计划项目(201410448029),山东省自然科学基金(ZR2015EM022),山东省自然科学基金高校、科研单位联合专项资助项目(ZR2013EML003),德州学院2013年度实验技术立项项目 |
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| 摘 要： | 利用—Si—O—共价键将离子液体嫁接在纳米TiO_2表面,制备离子液体@TiO_2纳米复合材料,并利用红外光谱、差热分析、元素分析等技术手段进行了分析。光催化性能研究表明,在紫外光照射60 min后,C8tespim]Br@TiO_2(C8tespim]:N-3-(3-三乙氧基硅烷基丙基)-4,5-二氢咪唑)复合材料能够将甲基橙100%脱色,明显优于TiO_2P25的光催化降解性能。同时发现其光催化性能与阴离子类型有密切关系,活性顺序为C8tespim]Br@TiO_2C8tespim]PF6@TiO_2C8tespim]Tf2N@TiO_2。
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| 关 键 词： | 离子液体@TiO2纳米复合材料 光催化剂 甲基橙 |
| 收稿时间： | 2015-07-28 |
Synthesis of Ionic Liquid@TiO2 Nanocomposites and Their Photocatalytic Performance |
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| YU Zonglong,JIA Chunxiao,LU Xin,HAN Haigang,XIN Bingwei.Synthesis of Ionic Liquid@TiO2 Nanocomposites and Their Photocatalytic Performance[J].Chinese Journal of Applied Chemistry,2016,33(4):459-465. |
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| Authors: | YU Zonglong JIA Chunxiao LU Xin HAN Haigang XIN Bingwei |
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| Affiliation: | Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong,Dezhou University,Dezhou,Shandong 253023,China |
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| Abstract: | IL@TiO2 nanocomposites were synthesized by grafting ionic liquids(ILs) onto the surface of TiO2 via —Si—O— covalent bond. The prepared nanocomposites were acharacterized by IR, thermal gravity-differential analysis and elemental analysis. C8tespim]Br@TiO2(C8tespim]:N-3-triethoxysilypropyl-4,5-dihydroimidazole) can catalyze the degradation of methyl orange to almost colourless after being illuminated by ultraviolet light for 60 min. The superior performance of prepared nanocomposites compared to that of TiO2 nanopaticles suggests that anion-exchange can tailor the photocatalytic activity, and the activity order is C8tespim]Br@TiO28tespim]PF6@TiO28tespim]Tf2N@TiO2(Tf2N:bis(trifluoromethyl)sulfonyl]imide). |
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| Keywords: | IL@TiO2 nanocomposites photo-catalyst methyl orange |
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