Buscar
Mostrando ítems 1-10 de 88
Structural study of a series of synthetic goethites obtained in aqueous solutions containing cadmium(II) ions
(J C P D S-int Centre Diffraction Data, 2003-03-01)
The capacity of goethite for Cd-II substitution has been explored in a series of synthetic samples prepared from Fe-III and Cd-II nitrate solutions aged 21 days in alkaline media. The total metal content ([ Fe] + [ Cd]) ...
Structural study of a series of synthetic goethites obtained in aqueous solutions containing cadmium(II) ions
(J C P D S-int Centre Diffraction Data, 2003-03-01)
The capacity of goethite for Cd-II substitution has been explored in a series of synthetic samples prepared from Fe-III and Cd-II nitrate solutions aged 21 days in alkaline media. The total metal content ([ Fe] + [ Cd]) ...
Structural study of a series of synthetic goethites obtained in aqueous solutions containing cadmium(II) ions
(J C P D S-int Centre Diffraction Data, 2014)
Nb-containing hematites Fe2-xNbxO3: The role of Nb5+ on the reactivity in presence of the H2O2 or ultraviolet light
(Elsevier B.V., 2009-03-31)
A series of Nb-containing hematites, Fe-2-xNbxO3 (%Nb = 0.00, 1.49, 5.00 and 9.24) was prepared using the conventional co-precipitation method. Mossbauer and temperature-programmed reduction (TPR) measurements suggested ...
Nb-containing hematites Fe2-xNbxO3: The role of Nb5+ on the reactivity in presence of the H2O2 or ultraviolet light
(Elsevier B.V., 2009-03-31)
A series of Nb-containing hematites, Fe-2-xNbxO3 (%Nb = 0.00, 1.49, 5.00 and 9.24) was prepared using the conventional co-precipitation method. Mossbauer and temperature-programmed reduction (TPR) measurements suggested ...
Magnetic and spectral signatures of Cerrado soils in the state of Goias, Brazil
(Empresa Brasil Pesq Agropec, 2017-10-01)
The objective of this work was to estimate the iron oxide contents (hematite and goethite) and to characterize the color and the spectral and magnetic signatures of Cerrado soils in the state of Goias, Brazil. Six Oxisols ...
Pedogenic iron oxides in iron-rich oxisols developed from mafic rocks
(Revista Brasileira de Ciência do Solo, 2017)
Nb-containing hematites Fe2-xNbxO3: The role of Nb5+ on the reactivity in presence of the H2O2 or ultraviolet light
(Elsevier Science BvAmsterdamHolanda, 2009)
Óxidos de ferro de solos formados sobre gnaisse do Complexo Bação, Quadrilátero Ferrífero, Minas Gerais.
(Pesquisa Agropecuária Brasileira, Brasília, v.41, n.2, p.313-321, fev. 2006., 2014)