Nanostructured MnO2 for phenolic compounds degradation and monitoring

摘要

In this paper, the oxidative degradation of phenolic compounds and their electrochemical monitoring by using nanostructured MnO₂ is reported. MnO₂ was synthesized by the redox-precipitation method and used as a catalyst for the wet air oxidation (CWAO) of phenol as a model compound under mild reaction conditions (T, 423 K; P, 1.4 MPa). The synthesized MnO₂ nanoparticles display also good electrochemical properties and have been applied here to fabricate modified screen printed carbon electrode (SPCE) for rapid detection of phenolic compounds (phenol, hydroquinone and cathecol) in waste water. The reported results demonstrated the great potential of nanostructured MnO₂ in the field of marine ambient pollution reduction and monitoring.