Release of metals from synthetic Cr-goethites under acidic and reductive conditions: Effect of aging and composition

The dissolution mechanism of pure and Cr-substituted, synthetic goethites with different aging times, as well as the changes in morphology, crystallinity and structural changes, were investigated. The Cr-goethites were obtained by synthesizing goethite in solutions that contained different concentra...

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Autores principales: Tufo, A.E., Sileo, E.E., Morando, P.J.
Formato: JOUR
Materias:
Acid dissolution
Cr-goethite
Crystallite size
Lattice parameters
Reductive dissolution
Acid concentrations
Aging time
CrIII ions
Crystal planes
Crystallinities
Dissolution mechanism
Dissolution process
Dissolution rates
Dissolution time
Homogeneous distribution
KOH concentration
Oxalic Acid
Rietveld
Structural change
Surface reaction control
Time span
Unit cell parameters
XRD
Activation energy
Chemical analysis
Chromium
Chromium compounds
Dissolution
Lattice constants
Optical glass
Organic acids
Rate constants
Structural metals
Synthetic metals
activation energy
chemical analysis
chromium
crystal structure
dissolution
goethite
immobilization
lattice dynamics
Rietveld analysis
substitution
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01691317_v58_n_p88_Tufo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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