搜索结果: 1-15 共查到“凹凸棒石 Layer charge”相关记录21条 . 查询时间(0.062 秒)
Effects of Exchange Cations and Layer-Charge Location on Cysteine Retention by Smectites
Cysteine CMS Source Clay SAz-1 FTIR Homoionic Smectites Layer Charge Thermal Analysis XRD
2011/12/7
Abstract: This study investigates the complexes formed between amino acids, which are the natural degradation products of organic matter, and smectites. Thus, the adsorption and desorption behavior of...
Layer Charge Influences on the Hydration of Expandable 2:1 Phyllosilicates
External Surface Hydration Hydration Number Layer Charge SAz-1 SHCa-1 Surface Area SWa-1 Swelling VTx-1
2011/12/7
Abstract: The objective of this study was to investigate the influence of layer charge on the hydration of Mg-saturated expandable 2:1 phyllosilicates. Water retained by 12 Mg-saturated clays at 54% r...
Application of an Internal Standard Technique by Transmission X-ray Diffraction to Assess Layer Charge of a Montmorillonite by Using the Alkylammonium Method
Alkylammonium Method Interlayer Cation Exchange Capacity Layer-Charge Determination Montmorillonite Silver Behenate XRD
2011/12/6
Abstract: Transmission X-ray diffraction (XRD) of C6–16 alkylammonium ion-exchanged montmorillonite SAz-1 with Ag-behenate as an internal standard provided accurate estimates of d(001) values of the a...
Layer-Charge Heterogeneity in Smectites of I-S Phases in Pelitic Sediments from the Molasse Basin, Austria
Alkylammonium Method Austria Charge Heterogeneity Illite-Smectite K-Fixation Molasse Basin
2011/12/8
Abstract: The purpose of this study was to characterize more fully the surface charge characteristics of the end-member smectite in illite-smectite (I-S) mixed-layer phases found previously in pelitic...
Effects of Exchanged Cation and Layer Charge on the Sorption of Water and EGME Vapors on Montmorillonite Clays
Cation Solvation EGME Isotherms Excess Interlayer Uptake Exchanged Cation Interlayer Spacings Layer Charge Layer Separation Microporosity Montmorillonite
2011/12/23
Abstract: The effects of exchanged cation and layer charge on the sorption of water and ethylene glycol monoethyl ether (EGME) vapors on montmorillonite have been studied on SAz-1 and SWy-1 source cla...
Change in Layer Charge of Smectites and Smectite Layers in Illite/Smectite during Diagenetic Alteration
Beidellitization Charge Location Diagenesis Greene-Kelly Test Illite/Smectite Layer Charge Smectite
2011/12/27
Abstract: The changes in amount and location of layer charge during diagenetic alteration have been investigated for smectites and smectite layers of illite/smectite interstratified minerals (I/S) by ...
Layer Charge Characteristics of Smectites in Salt-Affected Soils in Alberta, Canada
Layer charge Salinity Smectite
2011/12/1
Abstract: The layer charge characteristics of expanding phyllosilicates in four salt-affected soils in Alberta, Canada were investigated using X-ray diffraction analysis of alkylammonium saturated sam...
Layer Charge of the Expandable Component of Illite/Smectite in K-Bentonite as Determined by Alkylammonium Ion Exchange
Alkylammonium Bentonite Clays Diagenesis Illite Illite/smectite Layer charge Smectite
2011/12/27
The charge of the expandable interlayers in a series of fourteen diagenetic illite/smectites (I/S) from lower Paleozoic K-bentonites was determined by the alkylammonium ion exchange method. The magnit...
Synthesis and CO2 Adsorption Features of a Hydrotalcite-Like Compound of the Mg2+-Al3+-Fe(CN)64- System with High Layer-Charge Density
Al3+-substitution CO2 adsorption Hydrotalcite-like compound Ion exchange
2011/12/30
Hydrotalcite-like compounds (HT) with 24%–48% Al3+-substitution have been synthesized in the Mg2+-Al3+-Fe(CN)64- system. Conditioning of the synthesized and air-dried compound with K4Fe(CN)64- solutio...
Effects of Acidification on the Chemical Composition and Layer Charge of Smectite from Calcareous Till
Layer charge Smectite Soil acidity Structural formula Weathering
2011/12/31
The objectives of the study were to determine the chemical composition and layer charge of smectite found in calcareous till of the Interior Plains region of western Canada and to examine the effects ...
Effects of Layer Charge, Charge Location, and Energy Change on Expansion Properties of Dioctahedral Smectites
Charge location Ethylene glycol Expanded phase Expansion energy Glycerol Layer charge Relative humidity Smectite
2011/12/1
Abstract: Expansion properties of ten homoionic smectites that differed in amount and location of layer charge were examined by X-ray powder diffraction analysis at various relative humidities, or aft...
Crystalline Swelling of Smectite Samples in Concentrated NaCl Solutions in Relation to Layer Charge
Electrolyte Layer charge Smectite Swelling Vapor pressure X-ray powder diffraction
2011/12/31
The basal spacing of a set of smectites, with layer charges between 0.74 and 1.14 electrons per unit cell, have been measured while the smectites were in equilibrium with NaCl solutions having concent...
Evaluation of the Alkylammonium Method of Determining Layer Charge
Alkylammonium Layer charge Reduced charge Smectite Structural formula
2011/11/30
Abstract: The layer charge of five smectites, one vermiculitic material, and five reduced-charge clays was determined by the alkylammonium and structural formula methods. The two sets of results were ...
Layer-Charge and Cation-Exchange Characteristics of Vermiculite (Weathered Biotite) Isolated from a Gray Luvisol in Northeastern Saskatchewan
Alkylammonium Biotite Cation exchange Layer charge Tilt angle Transmission electron microscopy Vermiculite X-ray powder diffraction
2012/1/5
Layer charge and cation-exchange characteristics of weathered biotite isolated from a Gray Luvisol in Saskatchewan showed that this product was a high-charge vermiculite. Cation-exchange capacity (CEC...
Development of Layer Charge and Kinetics of Experimental Smectite Alteration
Alteration Hydrothermal Illite Layer charge Nuclear waste repository Smectite
2012/1/13
Sodium-saturated Wyoming bentonite was hydrothermally reacted at 150亱 and 250亱C for 30 to 180 days to determine smectite alteration rates that might be applied to nuclear-waste repository design. Na-C...