Modification of porous carbon-containing materials by silver nanoparticles

Abstract

The possibility of modification of carbon-containing materials by silver micro/nanoparticles by the "silver mirror" reaction method directly in the pores of carbon electrodes intended for spectral emission analysis is shown. The comparison of known methods for obtaining silver nanoparticles with glucose using Tollens reagent and ultrasonic cavitation is given. The proof of the modification of carbon electrodes was a comparison of the energy-dispersed spectra of unmodified and silver-modified carbon powder obtained using the Rigaku X-ray fluorescence analyzer. Micrographs obtained on a scanning electron microscope at various magnifications show the presence of silver nanoparticles up to 100 nm in size, presumably cubic in shape. The resulting modified electrodes can be used in voltammetric analysis, for example, for the determination of Se(IV) and iodid ions.