Sonochemical powder processing of iron hydroxides
نویسندگان
چکیده
منابع مشابه
Interaction of Orthophosphate with Iron( 111) and Aluminum Hydroxides
The influence of pH and aging upon the phosphate binding capacity of iron(II1) or aluminum hydroxides has been investigated. The formation of reactive polynuclear hydroxo complexes by the hydrolyzing cations and the subsequent oxolation process are starting points of a discussion of the observed influence of the experimental conditions upon the rate and extent of phosphate adsorption. The ratio...
متن کاملMechanisms of selenate adsorption on iron oxides and hydroxides.
Selenate (SeO4(2-)) is an oxyanion of environmental importance because of its toxicity to animals and its mobility in the soil environment. It is known that iron(III) oxides and hydroxides are important sorbents for SeO4(2-) in soils and sediments, but the mechanism of selenate adsorption on iron oxides has been the subject of intense debate. Our research employed Extended X-ray absorption fine...
متن کاملSynthesis and transformation of iron-based layered double hydroxides
Iron-based layered double hydroxides (LDHs) obey to the general chemical formula [MII(1-x)MIIIx(OH)2]x+. [(x/n) An-, m H2O]xand contain a minimum of 50 % of iron, i.e. FeII or FeIII, in the cationic sheets. As LDHs contain FeII species, these are interesting minerals for several applications such as the reduction of anionic pollutants or the degradation of organic pollutants. They are mostly pr...
متن کاملSuperconductivity and magnetism in iron sulfides intercalated by metal hydroxides.
Inspired by naturally occurring sulfide minerals, we present a new family of iron-based superconductors. A metastable form of FeS known as the mineral mackinawite forms two-dimensional sheets that can be readily intercalated by various cationic guest species. Under hydrothermal conditions using alkali metal hydroxides, we prepare three different cation and metal hydroxide-intercalated FeS phase...
متن کاملGlycine buffered synthesis of layered iron(II)-iron(III) hydroxides (green rusts).
Layered FeII-FeIII hydroxides (green rusts, GRs) are efficient reducing agents against oxidizing contaminants such as chromate, nitrate, selenite, and nitroaromatic compounds and chlorinated solvents. In this study, we adopted a buffered precipitation approach where glycine (GLY) was used in the synthesis of sulfate-interlayered GR (GRSO4) by aerial oxidation of FeII or co-precipitation by addi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ultrasonics Sonochemistry
سال: 1996
ISSN: 1350-4177
DOI: 10.1016/1350-1477(96)00009-3