Vanadium Oxyacetylacetonate Grated on Metal Organic Framework as Catalyst for the Direct Hydroxylation of Benzene to Phenol.

A high‐performance NH2‐MIL‐88B(Fe)‐SA−V for the direct catalytic oxidation of benzene hydroxylation using hydrogen peroxide as the oxidant was designed and prepared. The synthesized material was characterized by scanning electron microscopy, x‐ray powder diffraction, flourier transform infrared spectroscopy and nitrogen adsorption‐desorption. The influence of different parameters on the catalytic performance of NH2‐MIL‐88B(Fe)‐SA−V for benzene hydroxylation was researched. Under optimized condition, the high yield of 22.2% and selectivity of 98.6% were obtained, while the pure NH2‐MIL‐88B(Fe) only gained the yield of 1.2%. Furthermore, the V/Fe3O4 catalyst was obtained by calcination of NH2‐MIL‐88B(Fe)‐SA−V in N2 for photocatalytic recycle, and the yield and selectivity of phenol were 20.2% and 98.2% respectively. And the V/Fe3O4 has good photocatalytic efficiency after several recycling tests in the acid reaction condition. [ABSTRACT FROM AUTHOR]