The modification was carried out within 1, 2 and 3 h. The adsorption of chromium Cr(III) and Cr(VI) was conducted on carbons oxidized in such a way. Trivalent chromium occurs in water in the form of cation, and hexavalent chromium occurs in the form of anion. Ion number, embankment ...
The rapid reaction of Co(CN) 5N 3 3 with nitrious acid in the presence of Cr)OH 2) 5CN 2+ produces (H 2O) 5CrCNCo(CN) 5. The two binuclear complexes were separated and purified by cation and anion exchange procedures. The orientation of the bridging cyanide in the isomeric ...
Particulate Cr(VI) (1) partially dissolves outside the cell producing a chromate anion (2A) and a cation (2C). The cation enters into the cell through a channel protein (3, 4) and intact particles are phagocytosed into the cell (2B). Both appear to have no adverse effect on the ...
Using chromium oxide formed in aqueous solution as an example, the Mott-Schottky technique can identify the p-type characteristics and its population34, but it is impossible to tell whether the predominant point defect type is cation vacancies or anion interstitials as both are charged compensated ...
A hybrid DFT based investigation of the photocatalytic activity of cation–anion codoped SrTiO3 for water splitting under visible light In this study, the effect of cation (Mo or W) and anion (N) codoping on the band structure of SrTiO3is investigated to improve its photocatalytic activity ....
The commercial 316L type SS mesh (2.0 cm × 4.0 cm, Tianhong Stainless Steel Co., Ltd) were cleaned ultrasonically in distilled water and ethanol for 15 min, respectively. After cleaning process, the cleaned SS were etched ultrasonically in 6 M HCl for 120 min. Then, the etched SS ...
Balance Cr{3+} + Cl2 + H2O = Cr2O7{2-} + Cl{-} + H{+} Using Inspection The law of conservation of mass states that matter cannot be created or destroyed, which means there must be the same number atoms at the end of a chemical reaction as ...
favourable with chromic acid and bichromate species than with the dianionic chromate species (Wiberg 1965; Lee and Stewart 1967; Wiberg and Schafer 1967; Elovitz and Fish 1995), probably because the Cr centre is more electrophylic in the monovalent bichromate than in the divalent chromate anion...
Various composition and architecture of the complexes are responsible for different isotherm model fitting. The chromic cation showed adherence to Freundlich, Temkin, Halsey, Harkins-Jura and Jovanovic models for all or almost all dosed samples unlike cobaltous cation matching Langmuir, Flory-Huggins ...
04 September 2015 accepted: 15 December 2015 Published: 01 February 2016 Zahra Mousavi1, Faezeh Soofivand1, Mahdiyeh Esmaeili-Zare1, Masoud Salavati-Niasari1 & Samira Bagheri2 In this work, zinc chromite (ZnCr2O4) nanostructures have been synthesized through co-precipitation method...