Abstract
Abstract Monolithic silica gel was prepared combining sonochemistry and the use of a drying control chemical additive (DCCA); it was used as a host-matrix for a nanocomposite. CdS nanocrystals were precipitated by exposing the porous gel to H2S gas. Transmission electron microscopy (TEM) and absorption X-ray (XANES-CdK edge) experiments reveal the presence of CdO clusters as a consequence of an incomplete sulphurization inside the total matrix volume. The CdS crystal size was estimated to range from 3 to 5 nm by means of small angle X-ray scattering (SAXS), using the best Guinier region after mathematical data reduction. Optical absorption spectra confirm quantum confinement effects in CdS nanocrystals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
