Electrophoretic deposition of tannic acid–polypyrrolidone films and composites

摘要: Thin films of polyvinylpyrrolidone (PVP)-tannic acid (TA) complexes were prepared by a conceptually new strategy, based on electrophoretic deposition (EPD). Proof concept investigations involved the analysis yield, FTIR and UV-vis spectroscopy deposited material, electron microscopy studies. The mechanism indicated that limitations EPD in small phenolic molecules, such as TA, electrically neutral polymers, similar to PVP, containing hydrogen-accepting carbonyl groups, can be avoided. remarkable adsorption properties TA film forming PVP-TA allowed for materials different types, huntite mineral platelets hydrotalcite clay particles, TiO2 MnO2 oxide nanoparticles, multiwalled carbon nanotubes, TiN Pd nanoparticles. Moreover, used co-deposition formation composite films. In another approach, was capping agent hydrothermal synthesis ZnO nanorods, which then using complexes. fundamental interaction mechanisms chelation metal atoms particle surfaces with galloyl π-π interactions hydrogen bonding. various applications, utilizing functional inorganic organic types their composites.