Abstract
This Article puts forward a new idea to construct an electrode combining the advantages of a TiO2 nanotube photocatalyst and an excellent Sb-doped SnO2 electrocatalyst, which realized high electrocatalytic (EC) and photocatalytic (PC) oxidation efficiency at the same time. Under vacuum conditions, in virtue of the titanium oxide nanotubes (TiO2-NTs) as a template, well dispersed Sb-doped SnO2 (particle size 20 nm) was embedded into TiO2-NTs (diameter 60−90 nm and wall thickness 10−20 nm), resulting in the stake structured TiO2-NTs/Sb-doped SnO2 electrode (TiO2-NTs/SnO2). The loading amount of Sb-doped SnO2 on a TiO2-NTs/SnO 2 electrode is 21.4 g m−2, which is increased by 2 times compared with the situation of direct loading Sb-doped SnO2 on the Ti substrate (Ti/SnO2). The crystal lattice parameter of SnO2 becomes smaller, and crystal lattice parameter of TiO2 is larger, so the combination between TiO2-NTs and Sb-doped SnO2 becomes more tight. Compared with the electrochemical properties of Ti/SnO2, the a...
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