PMo12@UiO-67 Nanocomposite as green Epoxidation Catalyst with Enhanced Performance and High Retrievability

Polyoxometalates (POMs) as the nanocomposites have been applied as the homogeneous catalyst for some organic reactions. Choosing an appropriate support for POMs is an effective approach to solve their low-stability. In this work, the Keggin-type phosphomolybdic acid (PMo12) is immobilized in the cavities of Zirconium metal–organic framework (UiO-67) with suitable cage size and limited windows. The nanocomposite (PMo12@UiO-67) is used as a heterogeneous catalyst for the epoxidation of olefin with excellent retrievability. The above result would help us to develop more polyoxometalate-base heterogeneous catalyst for the epoxidation of olefin.