Figure 10

The effect of repeated use on the extraction efficiency (experimental conditions: 1.2 g (TBAC/2p-TsOH)/rGO, 0.5 g simulated oil (1600 mg/L sulphur content), 0.25 g H2O2, 25 °C, 800 rpm, 60 min).

The effect of repeated use on the extraction efficiency (experimental conditions: 1.2 g (TBAC/2p-TsOH)/rGO, 0.5 g simulated oil (1600 mg/L sulphur content), 0.25 g H2O2, 25 °C, 800 rpm, 60 min).