搜索结果: 31-45 共查到“凹凸棒石 Montmorillonite”相关记录229条 . 查询时间(0.031 秒)
An Aluminum Pillared Montmorillonite with Fast Uptake of Strontium and Cesium from Aqueous Solutions
Cation Exchange Capacity Delamination Pillared Clay Radiocesium Radiostrontium Uptake
2011/12/22
Abstract: The uptake of Sr and Cs by 2 types of aluminum pillared layered clays (Al-PILC), a reference sample (AZA) and a specially tailored sample (FRAZA), were investigated. The AZA sample was prepa...
Effects of Exchanged Cation on the Microporosity of Montmorillonite
Exchanged Cation Interlayer Accessibility Microporosity Montmorillonite Surface Area
2011/12/22
Abstract: The micropore volumes of 2 montmorillonites (SAz-1 and SWy-1), each exchanged with Ca, Na, K, Cs and tetramethylammonium (TMA) ions, were calculated from the measured vapor adsorption data o...
Adsorption of 137Cs on Montmorillonite and Illite: Effect of Charge Compensating Cation, Ionic Strength, Concentration of Cs, K and Fulvic Acid
Cesium Illite Ion Exchange Montmorillonite Radiocesium Selectivity Soil
2011/12/9
Abstract: A thorough understanding of the capacity of clay minerals to adsorb radiocesium is essential in order to predict the fate of this pollutant in the environment and to interpret routine measur...
Montmorillonite under high H2O pressures: Stability of hydrate phases, rehydration hysteresis, and the effect of interlayer cations
Montmorillonite high H2O pressures Stability hydrate phases rehydration hysteresis effect interlayer cations
2012/4/1
Dehydration of Ca- and Mg-exchanged montmorillonite was studied along H20 iso-
chores in the hydrothermal diamond-anvil cell by in situ X-ray diffraction using a syn-
chrotron radiation source. At-r...
Orientation of Trimethylphenylammonium (TMPA) on Wyoming Montmorillonite: Implications for Sorption of Aromatic Compounds
Adsorbate Infrared dichroism Montmorillonite Trimethylphenylammonium (TMPA)
2011/12/1
Abstract: The orientation of TMPA cations on montmorillonite affects the adsorbate-accessible siloxane surface area and determines whether the TMPA phenyl ring can interact with other aromatic adsorba...
The Application of Drift Spectroscopy to the Multicomponent Analysis of Organic Chemicals Adsorbed on Montmorillonite
Montmorillonite Odor Organic Slow-release Sorption
2011/12/1
Abstract: Diffuse Reflectance Fourier Transform Infrared spectroscopy was used to monitor both molecular interactions and concentrations of volatile organic chemicals adsorbed on a commercial montmori...
Swelling Pressure of Montmorillonite Layers versus H-O-H Bending Frequency of the Interlayer Water
Bending Frequency Hydration Infrared Spectroscopy Interlayer Force Interlayer Water Montmorillonite Swelling Pressure
2011/12/27
The in-depth perturbation of vicinal water by the surfaces of montmorillonite layers was investigated by relating the swelling pressure, Π, of the montmorillonite layers to the H-O-H bending frequency...
Modeling Arsenate Competitive Adsorption on Kaolinite, Montmorillonite and Illite
Arsenate competitive adsorption Illite Kaolinite Montmorillonite
2011/12/27
Abstract: The adsorption of arsenate (As(V)) on kaolinite, montmorillonite and illite was investigated at varying pH and competing anion concentration while holding As(V) concentration (6.7 ?10−...
Exchange Reactions in the Ca-Mg-Na-Montmorillonite System
Cation Adsorption Model Ca2+ Adsorption Mg2+ Adsorption Montmorillonite Solution Complexes
2011/12/23
Abstract: The exchange reactions of Na, Ca and Mg on montmorillonite are revisited employing recently developed analytical and theoretical approaches. The fractional adsorption of the cations has been...
Migration of Cu Ions in Cu Montmorillonite Heated With and Without Alkali Halides
Cu-montmorillonite K-halide IR and ESR spectra
2011/12/28
Cu montmorillonite heated with or without potassium halide was studied by IR and ESR spectroscopy, supplemented by XRD measurements, microprobe and chemical analyses. It appears that on heating Cu mon...
Adsorption of Tyrosinase onto Montmorillonite as Influenced by Hydroxyaluminum Coatings
Adsorption Clay minerals Enzymes Hydroxyaluminum-montmorillonite complex Interlayering Tyrosinase
2011/12/28
In soil environments, the surfaces of clay minerals are often coated with hydrolytic products of Al. However, limited information is available on the effect of hydroxyaluminum coatings on the interlay...
The Influence of Uranyl Hydrolysis and Multiple Site-Binding Reactions on Adsorption of U(VI) to Montmorillonite
Montmorillonite Uranyl
2011/12/28
Adsorption of uranyl to SWy-1 montmorillonite was evaluated experimentally and results were modeled to identify likely surface complexation reactions responsible for removal of uranyl from solution. U...
Acidity of Montmorillonite-(Ce or Zr) Phosphate Cross-linked Compounds
Layered phosphates Montmorillonite Surface acidity
2011/12/28
The nature and number of acid sites per unit weight on a series of materials obtained by interaction of a montmorillonite with zirconium or cerium hydrogenphosphates precipitated in situ by reaction b...
Flocculation and Coagulation of Ca- and Mg-Saturated Montmorillonite in the Presence of a Neutral Polysaccharide
Coagulation Dextran Exchangeable cation Flocculation Montmorillonite
2011/12/28
The objective of this study was to observe flocculation of montmorillonite in the presence of a glucose polymer (dextran) and to observe the effect of saturating cation and coagulant addition on the f...
Intercalation of Al13-Polyethyleneoxide Complexes into Montmorillonite Clay
Al13 Intercalation Microporous Montmorillonite Polyethyleneoxide
2011/12/28
Novel promising modified days adsorbents were synthesized by intercalating hydroxy-Al polymer associated with poly(ethyleneoxide) in the interlayer of montmorillonite. Two different PEOs of low molecu...