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Silica
Items for "Silica"
Sorption of europium(III) on polymeric silica in perchlorate media
Sorption of europium, Eu(III) with polymeric silicic acid has been studied under varying experimental conditions such as pH, ionic strength (I), concentration of silicic acid and of Eu(III), the presence of carbonate ions, and aging time...
Keywords: Europium, Sorption, Silica, Polymerization, Coagulation
01/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSorption behavior of curium(III) on hydrous silica: a kinetic and thermodynamic study
Sorption of tracer curium, Cm3+, on SiO2· H2O (silica gel) was investigated under different experimental conditions such as time of equilibration, concentration of Sm3+, pcH, and temperature...
Keywords: Curium, Sorption, Silica, Kinetics, Thermodynamics
03/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagEffect of complexing anions on europium sorption on suspended silica: a TRLFS study for ternary complex formation
The sorption of europium, Eu(III), on suspended silica was studied in perchlorate media under varying concentrations of Eu(III) and silica, at pH 4 to 8, and ionic strength from 0.20 to 1.40 M NaClO4 at 298 K...
Keywords: Europium, Sorption, Silica, Complexing anions, Ternary complex
05/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagThe effectiveness of silica treatments against wood-boring invertebrates
Timber specimens were impregnated with the organo-silicate tetraethyl orthosilicate (TEOS) in an effort to deposit hard silica granules and improve resistance to wood-borers...
Keywords: CCA, Coptotermes acinaciformis, Limnoria, Lyctus brunneus, marine borers, Martesia, Silica, Sphaeroma, Syncarpia, TEOS, teredinids, terrestrial borers
05/2007 | Holzforschung, Walter de GruyterKinetics and thermodynamics of uranium(VI) sorption on hydrous silica
Sorption of uranyl ion, UO22+, on SiO2· x H2O (silica gel) has been investigated as a function of time, amount of silica gel (0.10–0.60 g), uranium concentration (5.00×10-5–1.00×-3 M), ionic strength (0.20–1.40 M NaClO4), pH (∼2.0–6.0), and temperature (283–333 K)...
Keywords: Kinetics, Thermodynamics, Uranium, Sorption, Silica
09/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSol-gel synthesis of rodlike polysilsesquioxanes forming regular higher-ordered nanostructure
Rodlike polysilsesquioxanes forming regular higher-ordered nanostructure such as hexagonal phase were prepared by sol-gel reaction of organotrimethoxysilanes having amino groups in aqueous solutions of inorganic strong acids...
Keywords: Sol-gel synthesis, Polysilsesquioxane, Polysiloxane, Silica, Higher-ordered nanostructure
11/2007 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag