利用-Si-O-共价键将离子液体嫁接在纳米TiO2表面,制备离子液体@TiO2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,[C8 tespim] Br@TiO2([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TiO2 P25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@TiO2<[C8tespim] PF6@TiO2<[C8tespim] Tf2N@TiO2.
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