Base on the twostep method, ionic liquid \[BPy\]\[CF3SO3\] was synthesized from 1,4Butane sultone, ridine trifluoromethane sulfonic acid and py. Oxidationextraction desulfurization of model oil has been carried out with the ionic liquid as catalyst and 30% H2O2 as the oxidant. Desulfurization rate of model oil could reach to 94%, when treating 10 mL model oil with 0.6 g ionic liquid, 0.2 mL H2O2 at 50 ℃ for 30 min. After drying with rotary evaporator, the ionic liquid was regenerated for nextrun use, and the desulfurization rate could be still as high as 70% after recycling 5times.

In this work, controlling the pH of the solution was 8, which ensure that the carbonate exists in the form of bicarbonate. The bicarbonate were decomposed carbonate by heating. The carbonate and zinc ions producted zinc carbonate precipitation, zinc carbonate were decomposed ZnO by calcination. Nanometer ZnO were preparated by homogeneous precipitation. Samples were characterized by Xray diffraction(XRD),scanning electron microscopy(SEM),UV spectroscopy. The rhodamine B(RhB) was aim of degradation.The photocatalytic activity of the samples was evaluated by the photocatalyst of rhodamine B(RhB) under UV light irradiation.It was studied on effects of catalyst dosage, pH and H2O2 dosage on photocatalytic time. The experimental results show 100 mL RhB was completely photocatalized in 130 min under adding the mass of calalyst was 24 mg ,pH was 4 and the volue of H2O2 was 2 mL.