TY - JOUR
T1 - The state of iron in natural zeolites
T2 - A Mössbauer study
AU - Roque-Malherbe, Rolando
AU - Diaz-Aguila, Carlos
AU - Reguera-Ruiz, Edilso
AU - Fundora-Lliteras, Juan
AU - López-Colado, Lazaro
AU - Hernández-Vélez, Manuel
PY - 1990
Y1 - 1990
N2 - The state of iron in natural zeolites is an important feature for the practical applications of these materials. A Mössbauer study, complemented with other methods, of iron-containing zeolitic rocks from several countries (Mexico, Cuba, Czechoslovakia, and the USSR) was developed. It has been determined that iron is located as high spin Fe3+ in framework tetrahedral sites, in extraframework octahedral sites as free Fe(H2O)63+, and as high spin Fe2+ in octahedral coordination in extraframework sites or in another aluminosilicate associated with the zeolite. Iron is also located in magnetite contained in the zeolite rocks.
AB - The state of iron in natural zeolites is an important feature for the practical applications of these materials. A Mössbauer study, complemented with other methods, of iron-containing zeolitic rocks from several countries (Mexico, Cuba, Czechoslovakia, and the USSR) was developed. It has been determined that iron is located as high spin Fe3+ in framework tetrahedral sites, in extraframework octahedral sites as free Fe(H2O)63+, and as high spin Fe2+ in octahedral coordination in extraframework sites or in another aluminosilicate associated with the zeolite. Iron is also located in magnetite contained in the zeolite rocks.
KW - Iron
KW - Mössbauer spectroscopy
KW - magnetite
KW - natural zeolite
KW - octahedral site
KW - tetrahedral site
UR - http://www.scopus.com/inward/record.url?scp=0025486413&partnerID=8YFLogxK
U2 - 10.1016/0144-2449(90)90080-B
DO - 10.1016/0144-2449(90)90080-B
M3 - Artículo
SN - 0144-2449
VL - 10
SP - 685
EP - 689
JO - Zeolites
JF - Zeolites
IS - 7
ER -