Fenton-like Catalytic Performance of CuFe-LDH for Degradation of Florfenicol

Abstract

In this paper, the Cu-Fe layered double hydroxide (CuFe-LDH) was synthesized via co-precipitation method and applied as a heterogeneous Fenton-like catalyst to remove a typical veterinary antibiotic florfenicol. The effects of catalyst dosage, H2O2 concentration and initial pH value on the removal of florfenicol in aqueous solutions were investigated. The possible mechanism of the catalytic reaction was discussed. The results indicated that florfenicol can be effectively removed under the experimental conditions with heterogeneous Fenton-like reaction in the presence of CuFe-LDH. The removal efficiency can achieve nearly 100% with 10 mmol/L of H2O2 concentration. The synthesized CuFe-LDH as a catalyst can adapt the pH range of 5-9, and showed a good performance after several repeated use.