The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Optical and photocatalytic properties of cadmium sulfide and zinc sulfide nanoparticles incorporated in silica by the sol-gel method were investigated and their electrophysical characteristics (band gap and conductivity band position) were calculated. The photocatalytic activity of nanostructural composites was found to depend on semiconductor concentration. This can be explained as a result of size quantization effects and alteration of optical transmission of visible light through ZnS to the interface between ZnS and CdS and suppression of CdS interaction with the electron donor.