Nano-coatings were prepared by sol-gel process using titanium butoxide and cerium salt as precurors. The substrates were coated by dip-draw method. The structure of nano-coating was characterized by X-ray diffraction (XRD). The degradation activities of nano-coatings were evaluated by testing their efficiency in removing acetone and decane. Results show that the conversion rate of decane and acetone by TiO2 nano coating doped 1.0 wt % Ce was much higher than that of common unmodified TiO2 nano coating.