Abstract
A novel nano-TiO2 coating is prepared by vacuum dip-coating TiO2 sol–gel onto the anodized aluminum surface. The particles of TiO2 anatase is filled into the Al2O3 nano-pores formed by anodization. The structure and composition of the coatings are characterized by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The preponderant bacterium is identified as Pseudomonas lindanilytica strain IPL-1 through analysis of the sequences of S16 nRNA gene segment. In addition, the electrochemical results show that the TiO2 coatings significantly reduce the corrosion rate of Al substrates. The UV reflection spectroscopy is used to determine and analyze that the nano-TiO2 coatings could improve the light photo catalytic activity which decreases microbial influencing corrosion acceleration inhibition (MICI).
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