搜索结果: 1-15 共查到“地质学 Charge”相关记录62条 . 查询时间(0.104 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...
Reading the second edition of Moore and Reynolds°OX-ray Dif-
fraction and the Identification and Analysis of Clay Minerals
is an absolute delight. It is rare to come away from reading a
scientific ...
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...
Pedogenic Formation of High-Charge Beidellite in a Vertisol of Sardinia (Italy)
Beidellite High-charge Smectite Layers Illite-Smectite Mixed Layers Italy Smectite Soil Vertisol
2011/12/8
Abstract: The fine clay (<0.1 祄) fraction of a clayey soil (Vertisol) from Sardinia (Italy) was studied by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, cation exch...
Surface Charge Properties of Kaolinite
Dissolution Kaolinite Point of Zero Charge Potentiometric Titration Proton Surface Charge Structural Charge Surface Charge Surface Chemistry
2011/12/1
Abstract: The surface charge components of 2 Georgia kaolinites of differing degrees of crystallinity (KGa-1 and KGa-2) were determined using procedures based on charge balance concepts. Permanent str...
Weathering of Chlorite to a Low-Charge Expandable Mineral in a Spodosol on the Apennine Mountains, Italy
Chlorite Hydroxy-interlayers Smectite Spodosols
2011/12/1
Abstract: The clay fraction of a Spodosol and its parent rock in the Apennine mountains of central Italy were studied by powder X-ray diffraction (XRD) and infrared (IR) spectroscopy, to evaluate the ...
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...
Comparison of Hematite Coagulation by Charge Screening and Phosphate Adsorption: Differences in Aggregate Structure
Coagulation Kinetics Fractal Aggregate Hematite Light Scattering Phosphate Adsorption
2011/12/22
Abstract: The formation and structure of hematite aggregates were examined by dynamic and static light scattering techniques. A large range in coagulation kinetics was studied by varying either indiff...
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...
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...
Effect of Clay Charge on Swelling: A Clay-Modified Electrode Study
Charged clays Diffusive transport Iron reduction
2011/12/28
The uniformity of clay films affects the transport of an anionic electroactive probe through the film. When cations other than Na+ are present in the initial swelling of the film (such as native K+ an...
Low-Charge to High-Charge Beidellite Conversion in a Vertisol from South Italy
Beidellite Smectites Vertisol
2011/12/28
The fine silt (2? 祄) coarse clay (0.1? 祄) and fine clay (<0.1 祄) fractions of a Vertisol from South Italy were studied with X-ray diffraction. The most reactive fine clay (<0.1 祄) fraction was investi...