The MoO3/SiO2 catalyst with 1 wt% Mo content performed best, giving 54.6% conversion of DMO and 99.6% selectivity to MPO and DPO.

• Mo负载量为1%25的MoO3/SiO2催化性能最好，DMO转化率54.；6%25，MPO和DPO总选择性99