Due to the low photocatalytic efficiency of NH 2 -MIL-125 to catalyze the aerobic selective oxidation of alcohols to aldehydes under visible light, even that effect is not as good as traditional semiconductor materials. Even with the use of NH 2 -MIL-125(Ti) containing redox-active (multi) metallic nodes such as Ni, the scope of substrates is quite limited, especially fatty alcohols. In addition, a common feature of these catalytic systems is that they have a poor conversion for many substrates. To achieve this efficient catalyst system design, the composite should contain redox-active components such as Br -, NO 2 , and TEMPO to allow electrons obtaining and losing in oxidative reactions, which is a good "bridge" that connects oxidants and substrates.