Abstract In recent years, significant attention has been given to the development of photoelectrochemical materials capable of producing high current densities under illumination for a range of applications. Titanium dioxide nanotubes (TiNTs) have emerged as a favourable nanomaterial due to a reduced rate of recombination coupled with the ability to generate stable and high photocurrents. To date however, there have been no reports on the use of TiNTs for the photoelectrochemical production of chlorine, a powerful disinfectant, under UV light. The work reported here describes the construction of TiNTs for chlorine generation under low power UV-Light Emitting Diode (UV-LED) irradiation. Linear sweep voltammetry has shown TiNTs to be active for chlorine generation, achieving an average faradaic yield of ~60%, which was found to be significantly higher when compared to sol-gel electrodes (~40%). Furthermore, the impact of electrode conditioning was evaluated, demonstrating improved performance after removing surface contaminants.

中文翻译：

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二氧化钛纳米管作为氯化物氧化的光阳极的用途

摘要 近年来，能够在光照下产生高电流密度的光电化学材料的开发受到了广泛关注。二氧化钛纳米管（TiNTs）由于复合率降低以及产生稳定和高光电流的能力而成为一种有利的纳米材料。然而，迄今为止，还没有关于在紫外光下使用 TiNT 光电化学生产氯（一种强效消毒剂）的报道。此处报道的工作描述了在低功率紫外线发光二极管 (UV-LED) 照射下用于生成氯的 TiNT 的构造。线性扫描伏安法显示 TiNTs 对氯的生成具有活性，平均法拉第产率约为 60%，与溶胶-凝胶电极（~40%）相比，发现显着更高。此外，还评估了电极调节的影响，证明去除表面污染物后性能有所提高。