Abstract
CuO nanorod-graphene oxide (CRGO) hybrid was prepared by using sono-assisted advanced reverse precipitation method. The CRGO catalyst was characterized by XRD, FT-IR, Raman, SEM and HRTEM. The results showed that the CuO nanorod was well-decorated on large GO sheets. Catalytic testing showed that the oxidative degradation for BPA removal (60 mg L−1) could achieve almost 100% within 15 min at 25 °C in the system of CRGO hybrids and persulfate. The combination of CuO nanorod with GO sheets exhibited an unexpectedly catalytic activity, which was higher than pure CuO. The introduction of ultrasound irradiation in the preparation could enhance the catalytic activity of the hybrid. The mechanism research indicated that SO4− was the dominant active species.
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