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Interlayer structure, anion dynamics, and phase transitions in mixed-metal layered hydroxides: Variable temperature 35Cl NMR spectroscopy of hydrotalcite and Ca-aluminate hydrate (hydrocalumite)
Cl -intercalated hydrotalcite Ca-aluminate hydrate Variable temperature
2012/3/31
The Cl NMR spectroscopy of Cl -intercalated hydrotalcite and the Ca-aluminate hydrate, the presence of
hydrocalumite (Friedel°Os salt) demonstrates dynamical behavior of interlayer C
dynamical orde...
Adsorption of Molybdate Anion (MoO42−) By Sodium-Saturated Kaolinite
Adsorption Electrolyte Kaolinite Molybdate ion Speciation
2011/11/25
Abstract: Adsorption of Mo(VI) on 2−0.2-祄 size fraction of sodium-saturated kaolinite at 25 ?2癈 and at a constant pH of 7.00 ?0.05 was studied. The kaolinite sample was pretreated to remove any ...
Cation and Anion Retention by Natural and Synthetic Allophane and Imogolite
Adsorption Allophane Anion retention Cation retention Imogolite SiO2/Al2O3 ratio Surface charge
2012/2/6
The negative surface charge of synthetic allophanes with a range of Si/Al ratios decreased and positive charge increased with increasing alumina content at a given pH. The phosphate adsorption capacit...
Anion-Exchange Properties of Hydrotalcite-Like Compounds
Anion exchange Anion selectivity Crystallite size Hydrotalcite Naphthol Yellow S X-ray powder diffraction
2012/2/7
Ion-exchange isotherms between hydrotalcite-like compounds (HT) of the NO3-, Cl-, and SO4- forms and F−, Cl− Br−, I−, OH−, SO42−, CO32−, and Naphthol Yellow S...
Organic Anion Adsorption on Aluminum Hydroxides: Spin Probe Studies
Adsorption Aluminum hydroxide Boehmite Carboxylate Electron spin resonance Gibbsite Organophosphate
2012/2/8
The nature of organo-phosphate and carboxylate bonding in aqueous suspensions of noncrystalline alumina, boehmite, and gibbsite has been studied using the anionic nitroxide spin probes 3-carboxy-2,2,5...
Anion Interactions with Freshly Prepared Hydrous Iron Oxides
Anion adsorption Bidentate bridging Infrared spectroscopy Iron oxide
2012/2/7
Infrared analysis showed that the bonding habit of oxyanions with freshly precipitated hydrous ferric oxides depends upon the nature of the anion and its hydration level. Monovalent oxyanions adsorb t...
Thermal Behavior of Hydrotalcite and of Anion-Exchanged Forms of Hydrotalcite
Anion exchange Brucite Hydrotalcite Interstratification Perchlorate Thermal reaction
2012/2/8
Chloride-, sulfate-, and perchlorate-exchanged forms of hydrotalcite have been prepared and their layer spacings determined after equilibration in hydrous atmospheres and after heat-treatments up to t...