Results 231 to 240 of about 39,824 (274)
Some of the next articles are maybe not open access.
Clays and Clay Minerals, 2005
AbstractHigh-temperature oxide-melt solution calorimetry and acid-solution calorimetry were used to determine the heat of dissolution of synthetic goethite with particle sizes in the range 2–75 nm and measured surface areas of 30–273 m2/g (27–240 × 103 m2/mol).
Lena Mazeina, Alexandra Navrotsky
openaire +1 more source
AbstractHigh-temperature oxide-melt solution calorimetry and acid-solution calorimetry were used to determine the heat of dissolution of synthetic goethite with particle sizes in the range 2–75 nm and measured surface areas of 30–273 m2/g (27–240 × 103 m2/mol).
Lena Mazeina, Alexandra Navrotsky
openaire +1 more source
Selenium Adsorption by Goethite
Soil Science Society of America Journal, 1987Abstract The adsorption of Se by goethite was studied as a function of time (10 min–24 h), temperature (295.5 and 303.5 K), pH (4–11), particle concentration (3–300 mg/L), total Se concentration (0.02–5 × 10 −5 M ), oxidation state [Se(IV) and Se(VI ...
Laurie S. Balistrieri, T. T. Chao
openaire +1 more source
Goethite Pseudomorphs after Marcasite
Rocks & Minerals, 1989(1989). Goethite Pseudomorphs after Marcasite. Rocks & Minerals: Vol. 64, No. 2, pp. 124-127.
Maiden Rock, William S. Cordua
openaire +1 more source
Phosphate Adsorption from Aqueous Solutions onto Goethite, Bentonite, and Bentonite–Goethite System
Water, Air, & Soil Pollution, 2013The present paper examines the phosphate adsorption from aqueous solutions onto goethite, bentonite, and bentonite–goethite system. The properties of the materials were studied by X-ray diffraction (XRD), attenuated total reflectance (ATR), and NMR spectra and by the measurement of the specific surface area, the point of zero charge (p.z.c.) and the ...
Z. Ioannou, A. Dimirkou, A. Ioannou
openaire +1 more source
Magnetism in aluminous goethite
Physics and Chemistry of Minerals, 1991Magnetism in fine particles of goethite which contain 5, 11, 18 and 30 mole % aluminium has been investigated. Mossbauer spectroscopy was used, with the samples at 4.2 K and in applied magnetic fields of 0–8 T. Analysis was via a mean field model, in which the spectra from each sample were simultaneously least-squares fitted.
R.J. Pollard, Q.A. Pankhurst, P. Zientek
openaire +1 more source
Dynamic Mobility of Rodlike Goethite Particles
Langmuir, 2009In this work we consider how the spheroidal shape of colloidal particles and their concentration in suspension influence their electrokinetic properties in alternating (ac) electric fields, in particular, their electrophoretic mobility, traditionally known as dynamic mobility in the case of ac fields.
R A, Rica, M L, Jiménez, A V, Delgado
openaire +2 more sources
Properties of Goethites of Varying Crystallinity
Clays and Clay Minerals, 1985Abstract Goethites were synthesized from ferrihydrite in 0.7 M KOH between 4° and 90°C. As temperatures increased, the goethite crystals became larger and of less domainic character, and surface areas decreased from 153 to 9 m 2 /g.
Schwertmann, U. +2 more
openaire +2 more sources
Interaction of silicic acid with goethite
Journal of Colloid and Interface Science, 2007The adsorption of Si on goethite (alpha-FeOOH) has been studied in batch experiments that cover the natural range of Si concentrations as found in the environment. The results have been interpreted and quantified with the charge distribution (CD) and multi-site surface complexation (MUSIC) model in combination with an extended Stern (ES) layer model ...
Hiemstra, T. +2 more
openaire +2 more sources
Ascorbate guided conversion of hydrogen peroxide to hydroxyl radical on goethite
Applied Catalysis B: Environmental, 2021Lizhi Zhang
exaly