Buscar
Mostrando ítems 1-10 de 90
Release of metals from synthetic Cr-goethites under acidic and reductive conditions: Effect of aging and composition
(Elsevier Science, 2012-04)
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 ...
Characterization of Ni-containing goethites by Mossbauer spectroscopy and other techniques
(Kluwer Academic PublDordrechtHolanda, 2002)
Identification and quantification of iron oxides by diffuse reflectance spectroscopy with Praying Mantis accessory and integration sphere
(2021-01-01)
Soil color is one of the main attributes used in the Brazilian System of Soil Classification and is related to the presence and concentration of iron oxides. This work aimed to identify and quantify the iron oxides (hematite, ...
The sorption of toxic elements onto natural zeolite, synthetic goethite and modified powdered block carbon
(SPRINGER, 2009)
Inorganic elements analyses of Carapicuiba lake reveal that As, Cr, Pb and Mn are above the recommended drinking water standards. The mean total concentrations of toxic elements in surface water decrease in the order Mn > ...
Laboratory synthesis of goethite and ferrihydrite of controlled particle sizes
(Universidad Nacional Autónoma de México, Instituto de Geología, 2015)
Predicting potentially toxic elements in tropical soils from iron oxides, magnetic susceptibility and diffuse reflectance spectra
(2018-06-01)
Environmental impacts can be more accurately assessed with the aid of spatial characterization of potentially toxic elements (PTEs). In fact, developing cost-effective, environmentally friendly spatial characterization ...
Catalysts based on clay and iron oxide for oxidation of toluene
(Elsevier Science BvAmsterdamHolanda, 2011)
Preparação de carvão ativado e impregnação com ferro ou cromo para aplicações em processos de descontaminação ambientalPreparation and impregnation of activated carbons with iron or chromium for aplication on environmental descontamination processes
(UNIVERSIDADE FEDERAL DE LAVRASDQI - Programa de Pós-graduaçãoUFLABRASIL, 2014)