Abstract A V-doped titania catalyst was synthesized on titanium substrate by micro-arc oxidation and then it was carried out by heat treatment in nitrogen atmosphere. The surface characteristics of the synthesized titania coatings were investigated by SEM, EDS, XPS and XRD. The synthesized TiO2 coating doped with V (in form of V2O3 and V2O5) showed a large amount of “cellular” bulges with more microscopic defects. The anatase phase of the TiO2 coatings after heat treatment tended to be transformed into rutile phase. As a result, the corrosion resistance and photocatalytic performance of TiO2 coating doped with V after heat treatment had been enhanced.

中文翻译：

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热处理后微弧氧化涂层的微观结构和光催化性能

摘要 采用微弧氧化法在钛基体上合成了V掺杂的二氧化钛催化剂，然后在氮气氛中进行热处理。通过SEM、EDS、XPS和XRD研究了合成的二氧化钛涂层的表面特性。合成的 TiO2 涂层掺杂了 V（以 V2O3 和 V2O5 的形式）显示出大量具有更多微观缺陷的“细胞”凸起。热处理后TiO2涂层的锐钛矿相倾向于转变为金红石相。因此，掺杂钒的TiO2涂层在热处理后的耐腐蚀性能和光催化性能得到了提高。