In this study, Ni@C was loaded on self-made TiO2 by in-situ hydrothermal synthesis, which has a better photocatalytic effect on the oxidation of benzyl alcohol than the by commercial TiO2 supported by Ni@C. In addition, aromatic alcohols with different substituents are used as reaction substrates, and good conversion rate and selectivity are also obtained, which shows that the catalyst has a wide range of applicability. What is interesting is that the catalytic effect of the catalyst is significantly different in different solvents. By controlling the reaction solvent, the production of aldehydes or acids can be regulated. This is conducive to the application of the catalyst in actual production.