Synthesis of Ionic Liquid@TiO2 Nanocomposites and Their Photocatalytic Performance

doi:10.11944/j.issn.1000-0518.2016.04.150269

Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (4): 459-465.DOI: 10.11944/j.issn.1000-0518.2016.04.150269

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Synthesis of Ionic Liquid@TiO₂ Nanocomposites and Their Photocatalytic Performance

YU Zonglong,JIA Chunxiao(),LU Xin,HAN Haigang,XIN Bingwei()

Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong,Dezhou University,Dezhou,Shandong 253023,China

Received:2015-07-28 Accepted:2015-11-19 Published:2016-04-01 Online:2016-04-01
Contact: JIA Chunxiao,XIN Bingwei
Supported by:
Supported by the National Training Programs of Innovation and Entrepreneurship for Undergraduates(No.201410448029), the Natural Science Foundation of Shandong Province(No.ZR2015EM022), the Natural Science Foundation of Shandong Province Combination Research Projects(No.ZR2013EML003), Research Projects of Solar Energy of Dezhou University(No.SYJS-B13003)

Abstract

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@TiO₂<[C₈tespim]PF₆@TiO₂<[C₈tespim]Tf₂N@TiO₂(Tf₂N:bis[(trifluoromethyl)sulfonyl]imide).

Key words: IL@TiO2 nanocomposites, photo-catalyst, methyl orange

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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Synthesis of Ionic Liquid@TiO₂ Nanocomposites and Their Photocatalytic Performance

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