UV-Induced Oxidative Energy Storage Behavior of a Novel Nanostructured TiO2鈥揘i(OH)2 Bilayer System

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• 作者：Liying Zhang ; Lei Xu ; Jianming Wang ; Haibo Shao ; Yuqian Fan ; Jianqing Zhang
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：September 15, 2011
• 年：2011
• 卷：115
• 期：36
• 页码：18027-18034
• 全文大小：953K
• 年卷期：v.115,no.36(September 15, 2011)
• ISSN：1932-7455

文摘

Storage of the oxidative energy generated at a UV-irradiated TiO₂ photocatalyst can be achieved by coupling TiO₂ with Ni(OH)₂, a redox-active p-type semiconductor. However, improvement on the oxidative energy storage efficiency of the TiO₂/Ni(OH)₂ system is becoming a challenge. In this paper, we have investigated the UV-induced oxidative energy storage behavior of a novel nanostructured TiO₂鈥揘i(OH)₂ bilayer system fabricated by the cathodic electrodeposition of a Ni(OH)₂ layer onto an oriented TiO₂ nanorod film. The as-prepared bilayer system shows a markedly enhanced apparent quantum yield (6.8%), and the number of the corresponding irradiation鈥揹ischarge cycles has significantly increased. A possible UV-induced oxidative energy storage mechanism for the bilayer鈥損latinum coupling system is proposed.