Synthesis,Characterization and Application of Ordered Macroporous Prussian Blue Membrane

A simple and effective method is reported for the fabrication of Prussian blue membranes with ordered macroporous structure.The as-synthesized polystyrene(PS) nanoparticles are subsided to form a membrane,and the closed-packed assembly of PS is seeded with a layer of PDDA-PB.Then a macroprous Prussian blue membrane is produced for the first time upon decomposition of the PS nanoparticles,and the GOX-functionalized membrane is obtained via the layer-by-layer(LBL) sequential electrostatic adsorption of PDDA and GOX on the macroporous membrane.SEM and UVvisible spectroscopy were employed to follow the formation of Prussian blue membrane with ordered macroporous structure.Electrochemical experiments were performed on the electrochemical workstation.On the basis of measuring the electrocatalytic reduction current of H2O2 produced by the reaction of glucose and oxygen under the catalysis of GOX,the detection of glucose is achieved.