TY - JOUR
T1 - Direct interaction of colloidal nanostructured ZnO and SnO 2 with NO and so 2
AU - Velasco-Arias, D.
AU - Díaz, D.
AU - Santiago-Jacinto, P.
AU - Rodríguez-Gattorno, G.
AU - Vázquez-Olmos, A.
AU - Castillo-Blum, S. E.
PY - 2008/12
Y1 - 2008/12
N2 - A novel and easy synthesis pathway of small SnO 2 nanoparticles is reported. The method consists of the spontaneous hydrolysis of SnCl 4 ·; 5H 2O in dimethyl sulfoxide (DMSO), containing 3% water, at room temperature. The structure of the SnO 2 nanocrystals corresponds to that of the cassiterite phase, as shown by powder X-ray diffraction and HR-TEM. The UV-visible electronic absorption and emission spectra of the SnO 2 colloids are discussed. The reactions of NO (g) and SO 2(g) with ZnO (wurtzite phase) and SnO 2 nanocolloids are studied. The interaction of NO with ZnO nanoparticles generates the dissolution of the particles and it is quite probable that NO 3 -1, NO 2 -1, N 2O and N 2 are formed; while its contact with SO 2 probably yields SO 4 -2, SO 3 -2 and also the dissolution of the particles is observed. When these gases are reacted with SnO 2, then NO 3 -1, NO 2 -1, SO 3 -2 and SO 4 -2, were respectively obtained.
AB - A novel and easy synthesis pathway of small SnO 2 nanoparticles is reported. The method consists of the spontaneous hydrolysis of SnCl 4 ·; 5H 2O in dimethyl sulfoxide (DMSO), containing 3% water, at room temperature. The structure of the SnO 2 nanocrystals corresponds to that of the cassiterite phase, as shown by powder X-ray diffraction and HR-TEM. The UV-visible electronic absorption and emission spectra of the SnO 2 colloids are discussed. The reactions of NO (g) and SO 2(g) with ZnO (wurtzite phase) and SnO 2 nanocolloids are studied. The interaction of NO with ZnO nanoparticles generates the dissolution of the particles and it is quite probable that NO 3 -1, NO 2 -1, N 2O and N 2 are formed; while its contact with SO 2 probably yields SO 4 -2, SO 3 -2 and also the dissolution of the particles is observed. When these gases are reacted with SnO 2, then NO 3 -1, NO 2 -1, SO 3 -2 and SO 4 -2, were respectively obtained.
KW - Colloids
KW - Nitrogen oxide
KW - Pollutant gases degradation
KW - Sulfur dioxide
KW - Tin dioxide nanoparticles
KW - Zinc oxide nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=58149293812&partnerID=8YFLogxK
U2 - 10.1166/jnn.2008.002
DO - 10.1166/jnn.2008.002
M3 - Artículo
SN - 1533-4880
VL - 8
SP - 6389
EP - 6397
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
IS - 12
ER -