Synthesis of Bi-O- and Bi-V-O-containing Nanolayers by Ionic Deposition

摘要

A possibility of preparing Bi_2o_3 and BiVO_4 nanolayers by ionic deposition on the silica surface was shown for the first time. The influence of the concentration of pH of reactant solutions and of the number of ionic deposition cycles on the kinetics of the nanolayer growth was studied. The conditions were determined for the formation of a nanolayer by a reaction in a layer of ions sorbed on the surface. The thickness of the synthesized layers was determined by ellipsometry. The layer compositions were studied by X-ray spectral micoranalysis, X-ray photoelectron spectroscopy, and UV and IR Fourier transform spectroscopy. The structure of the layers was studied by powder X-ray diffraction.