For comparison, the nanocomposites without Au nanoparticles
decoration (POMs/OMC) are also prepared. In a typical synthesis,
OMCs suspension (10 mL, 2 mg mL1
) were added in the initial
POMs (100 mL, 1 mM) by ultrasonication for 20 min, followed by
filtering, washing several times and drying in a vacuum oven at
60 °C for 36 h.