搜索结果: 46-60 共查到“凹凸棒石 Montmorillonite”相关记录229条 . 查询时间(0.242 秒)
Adsorption Mechanisms of Imazamethabenz-Methyl on Homoionic Montmorillonite
Adsorption Hydrolysis Imazamethabenz-methyl Infrared spectroscopy Interlayer cations Montmorillonite Pesticides
2011/12/28
The adsorption of the herbicide imazamethabenz-methyl, a mixture of the two isomers methyl (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-4-methylbenzoate (para isomer) and meth...
The Rheological and Colloidal Properties of Bentonite Dispersions in the Presence of Organic Compounds V. Bentonite and Sodium Montmorillonite and Surfactants
Bentonite Cetylpyridinium chloride Coagulation Flow behavior Montmorillonite Sodium dodecylsulfate (SDS) Surfactants
2011/12/27
The influence of surfactants on the flow behavior of sodium montmorillonite dispersions (2% w/w) was studied for a cationic (cetylpyridinium chloride, CPCl) and an anionic surfactant (sodium dodecylsu...
Infrared Spectroscopic Analyses on the Nature of Water in Montmorillonite
Montmorillonite Spectroscopy Water
2011/12/29
Interlayer cations and moisture content greatly influence the molecular vibrations of H2O in montmorillonite as shown through reflectance spectroscopy in the infrared. The absorptions due to H2O have ...
Kaolinite/Montmorillonite Resembles Beidellite
Beidellite Greene-Kelly test Kaolinite/montmorillonite
2011/12/29
A number of smectitic samples from Almería (SE Spain) were studied by chemical analysis, DTA, TG, XRD (oriented aggregates with ethylene glycol treatment and Greene-Kelly test), FTIR and MAS NMR. Chem...
Redox Treatment of an Fe/Al Pillared Montmorillonite. A Mossbauer Study
Lepidocrocite Maghemite Magnetite Modified montmorillonite Mossbauer PILC Superparamagnetism
2011/12/29
Pillared structures with an interlayer opening of ∼0.3 nm were obtained after successive heat treatments of the PILC precursor in reducing and oxidizing conditions. This precursor was prepared b...
Cation Exchange Capacity and Condition of Zero Charge of Hydroxy-Al Montmorillonite
Cation exchange capacity Pillared clay Point of zero charge
2011/12/29
The effect of interlayering montmorillonite with different amounts ofhydroxy aluminum cation on the cation exchange capacity (CEC) and the point of zero charge (PZC) of the clay was studied. The CEC d...
Properties of Hydroxy-Al and -Cr Interlayers in Montmorillonite
Aluminum Chromium Interlayering Montmorillonite XPS
2011/12/29
In environments contaminated with Cr, the interlayers of expandable layer silicates may serve as sinks for this potentially toxic element. As a means of determining the potential for smectites to serv...
The Effect of Dissolved Ligands on the Sorption of Cu(II) by Ca-Montmorillonite
Adsorption β-alanine Copper Ethylenediamine Malonic acid Modeling Montmorillonite
2011/12/28
The effects of three organic ligands on the adsorption of copper on Ca-montmorillonite were studied. The results indicate that these effects include three different processes: Enhanced uptake of posit...
Effect of 1,4-Dioxane on the Expansion of Montmorillonite Layers in Montmorillonite/Water Systems
1,4-dioxane Layer expansion Montmorillonite Swelling
2011/12/28
Suspensions were produced by mixing Na-saturated, Upton montmorillonite with aqueous solutions containing different concentrations of 1,4-dioxane. Each suspension was deposited on a porous ceramic fil...
Isothermal Treatments of Regularly Interstratified Montmorillonite-Beidellite at Hydrothermal Conditions
Hydrothermal condition Isothermal treatments Regularly stratified montmorillonite-beidellite
2011/12/30
A glass in the intermediate composition of montmorillonite and beidellite, 50/50 in mole ratio, was treated under a hydrothermal pressure of 100 MPa, in the temperature range from 250 to 500°C and dur...
Bronsted Acidification Observed during Hydrothermal Treatment of a Calcium Montmorillonite
Aluminium Ca-smectite Gibbsite-type intercalates
2011/12/30
An aluminous Ca-montmorillonite from southern Manitoba, Canada, has been shown to generate very low pH values in clay/groundwater slurries over a range of ionic strength of the groundwater (fresh and ...
The Effect of Dissolved Ligands upon the Sorption of Cu(II) by Ca-Montmorillonite
Adsorption β-alanine Copper Ethylenediamine Malonic acid Modeling Montmorillonite
2011/12/30
The effect of three organic ligands on the adsorption of Cu on Ca-montmorillonite was studied. The results indicate that these effects include three different processes: Enhanced uptake of positively ...
Chemisorption of Benzene on Cu-Montmorillonite as Characterized by FTIR and 13C MAS NMR
Benzene chemisorption 13C MAS NMR Cu-montmorillonite FTIR Poly-p-phenylene
2011/12/1
Abstract: Sorption of benzene onto Cu-montmorillonite was characterized by Fourier transform infrared (FTIR) spectroscopy and 13C magic angle spinning nuclear magnetic resonance (MAS NMR). Under anhyd...
Residual Manganese(II) Entrapped in Single-Layer-Hydrate Montmorillonite Interlayers
Electron paramagnetic resonance Mn(II) coordination Montmorillonite
2011/12/30
Electron paramagnetic resonance (EPR) and Fourier transform infrared (FTIR) spectroscopy in combination with X-ray diffractometry and thermal methods were used to determine the coordination of residua...
Potassium Halide-Treated Montmorillonite (KTM) as a Solid Phase in Liquid Chromatography
Disubstituted benzenes HPLC Montmorillonite Potassium hatides
2011/12/30
Columns for high pressure liquid chromatography were prepared from spray dried samples of montmorillonite that were heated with potassium halides (KTM) to increase both the cation density on the clay ...