A series of amorphous TiO/NH-MIL-125(Ti) (Am-TiO/NM) composites were in-situ fabricated via one-pot facile water (HO) bath method. The photocatalytic performance of as-synthesized samples was evaluated by CO reduction with HO under visible-light irradiation. The Am-TiO/NM with 22.6 wt% Am-TiO loading had the highest photo activity for CO reduction into CH (1.18 μmol·h·g), which was 1.7 times higher than that of pure NM. The enhanced photocatalytic activity was attributed to the formation of the strong interactions between NM and Am-TiO, which not only improved the ability of electron transfer, but also inhibited the recombination of electron-hole pairs. Furthermore, the optimum sample showed satisfied stability within five times recycling tests during the photo reaction under visible-light irradiation. These kinds of MOF-based composites provided potential applications in the field of energy conversion.
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