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Qianqian Zhang, Ziying Hu, Zhaoyue Liu, Jin Zhai and Lei Jiang Light-Gating Titania/Alumina Heterogeneous Nanochannels with Regulatable Ion Rectification Characteristic Advanced Functional Materials 24

Version of Record online: 19 AUG 2013 | DOI: 10.1002/adfm.201301426

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Artificial nanochannels based on chemically modified TiO2/Al2O3 heterogeneous porous membranes are described. The irreversible decomposition of octadecyltrimethoxysilane (OTS) molecules by TiO2 photocatalysis under ultraviolet light results in a change of surface wettability and an asymmetric distribution of surface negative charges simultaneously, which contributes to the ion gating and regulatable ion rectification.

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