Combining with the photodegradation activities of TiO2 on C7H16, we conclude that the photocatalysis activities of TiO2 decrease with their shresholds (eV) decreastng.

• 比较样品的光伏特性和它们的光降解C_7H_(16)活性,发现随着TiO_2阈值增大,其光催化活性增强。