作者: XZ Li , FB Li , None
关键词: Auxiliary electrode 、 Platinum 、 Titanium 、 Chemistry 、 Analytical chemistry 、 Methyl orange 、 Anodizing 、 Noble metal 、 X-ray photoelectron spectroscopy 、 Working electrode
摘要: Novel Ti/TiO2 and Ti/Pt−TiO2 mesh photoelectrodes were produced by anodizing titanium in H2SO4 solution. Their structural surface morphology examined X-ray diffraction (XRD), scanning electronic microscopy (SEM) photoelectron spectroscopy (XPS). The analytical results indicated that the crystal structure, pore size affected significantly voltage current density applied anodization percentage platinum content. of XPS measurement showed binding energy O 1s Ti 2p increased slightly owing to deposition (Pt0, Pt2+ Pt4+) onto TiO2 surface. photoelectrocatalytic (PEC) oxidation methyl orange aqueous solution using meshes was investigated. experimental demonstrated prepared at 160 V 110 mA cm−2 achieved best PEC oxidation. efficiency could be further enhanced applying an electrical bias between working electrode counter electrode. An optimal found 0.6 V, while content 3.37%.