科研之友
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摘要
This work demonstrates the formation of self-ordered double-walled ZrO2 nanotube array via electrochemical anodization in glycerol-based electrolyte. Compared with its counterpart of single-walled ZrO2 nanotube array, the tube wall of double-walled ZrO2 nanotube split into outer and inner layers for the decomposition of glycerol during anodization process. Moreover, the double-walled structure showed its advantage of achieving improved utilization of light and higher specific surface area of nanotube array. Due to the unique double-walled structure, the double-walled ZrO2 nanotube array exhibited better photocatalytic activity than the single-walled ZrO2 nanotube array.
