nanocompósitos semicondutores zno/tio2: testes fotocatalíticos zno/tio2 semiconductor nanocomposites: photocatalytic tests

Clicks: 164
ID: 134332
2010
Titanium dioxide is an efficient photocatalist, being possible to improve its efficiency with better charge separation which occurs when it is coupled with other semiconductors. Nanometric particles of ZnO were used to impregnate TiO2 P25 in order to optimize its photocatalytic properties. ZnO/TiO2 composites were obtained at different proportions and were characterized by X-ray diffraction (XRD), micro-Raman and diffuse reflectance spectroscopies, measurement of surface area (BET) and scanning electron microscopy (SEM). Raman spectroscopy data revealed a change on the TiO2 surface due the presence of ZnO which was observed by an enlargement of TiO2 peaks and a change on the relation rate between anatase and rutile phases of the composites. The photodegradation of azo-dye Drimaren red revealed better efficiency for ZnO/TiO2 3% nanocomposite and for ZnO pure.
Reference Key
silva2010qumicananocompsitos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Shirley Santana Silva;Fabiano Magalhães;Maria Terezinha C. Sansiviero
Journal greece and rome
Year 2010
DOI 10.1590/S0100-40422010000100016
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000100016
Keywords
photocatalysis semiconductor nanocomposites

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.