Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5359263 | Applied Surface Science | 2011 | 5 Pages |
Abstract
Hollow spheres of AgI with an average radius of 100-200Â nm have been prepared by a simple reaction between AgBr suspension and KI in the presence of gelatin. Gelatin played a decisive role as an inhibitor of the direct attack of Iâ ions to AgBr surfaces and coagulation of the growing AgI in producing the spherical AgI particles. The products were characterized by X-ray powder diffraction, transmission electron microscopy, UV-vis absorption spectroscopy and X-ray photoelectron spectra techniques. The band gaps are estimated to be 2.95Â eV according to the results of optical measurements of the hollow spheres of AgI.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Ming Yang, Kui Zhou,