The interest in TiO2 nanotubes has resulted in a lot of studies including the effects of various parameters on the properties and performance for different applications. This study investigated the effect of anodization at a low temperature on the properties and photoelectrochemical performance. The effects of varied anodization settings on morphology, crystallinity, and PEC response were studied. Low-temperature anodization resulted in smaller pore diameter and shorter tube length. Annealing temperature affected the presence of varied phases of TiO2 such as the prominence of anatase and amounts of rutile and amorphous TiO2 at 125°C. To observe photoelectrochemical response, annealing at 450°C is necessary. However, a cathodic response was observed for TiO2 nanotubes synthesized with low voltage at low temperature. Hence, amorphous titania nanotubes annealed at 125°C with thickness achieved in the anodization can be a potential material used for photocatalytic applications due to its determined cathodic photoelectrochemical response.

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非晶和结晶阳极氧化 TiO2 纳米管电极中光电化学电流的比较

对 TiO2 纳米管的兴趣导致了大量研究，包括各种参数对不同应用的性质和性能的影响。本研究调查了低温阳极氧化对性能和光电化学性能的影响。研究了不同阳极氧化设置对形态、结晶度和 PEC 响应的影响。低温阳极氧化导致更小的孔径和更短的管长。退火温度会影响 TiO2 不同相的存在，例如 125°C 下锐钛矿的突出以及金红石和无定形 TiO2 的数量。为了观察光电化学反应，需要在 450°C 下退火。然而，在低温下用低电压合成的 TiO2 纳米管观察到阴极响应。因此，