Moreover, the catalyst system was also applicable to the broad substrate scope including aliphatic and aromatic alcohols, producing corresponding acids through further oxidation of aldehyde intermediates. The fact that the whole NH 2 -MIL-125 (Ti)/NaBr system was superior to than single one of them is efficient to the oxidation of alcohols, which encouraged us to obtain the design more exquisite ideas of the photocatalytic oxidation of the catalytic system.