Synthesis of Cu2O Nanotubes with Efficient Photocatalytic Activity by Electrochemical Corrosion Method

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• 作者：Qi Wang ; Yanlin Jia ; Mingpu Wang ; Weihong Qi ; Yong Pang ; Xueming Cui ; Wenhai Ji ; Jiang Yi
• 刊名：Journal of Physical Chemistry C
• 出版年：2015
• 出版时间：September 24, 2015
• 年：2015
• 卷：119
• 期：38
• 页码：22066-22071
• 全文大小：422K
• ISSN：1932-7455

文摘

Metal oxide nanotubes have been synthesized with varied methods based on mechanisms such as the Kirkendall effect, dislocation-driven growth, and so on. However, most of these methods pose a challenge to these thermally unstable metal oxides. Herein, we first adopted the concept of electrochemical corrosion in the successful synthesis of scalable tubular Cu₂O nanoparticle (>10 渭m in length, 20鈥?00 nm in diameter) in aqueous solution at room temperature. By investigating different growth stages of the reaction process, a CuBr₂^{鈥?/sup> ion diffusion mechanism was rationally put forward associating with the literature, instead of the atom diffusion mechanism in the Kirkendall effect. The products exhibit outstanding specific surface area and photocatalytical activity. The present method provides a new route for synthesizing metal oxides with hollow structures.}