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A new method combining modification of montmorillonite …

2020-2-1 · A kind of organic montmorillonite was prepared successfully through a new and simple method, which was introducing Fe3+ and stearic acid into interlamination of montmorillonite. The maximum interlayer spacing of organic montmorillonite could be expanded from 1.25 nm to 4.66 nm, and the organic montmorillonite formed an intercalated structure in matrix during melting process.

The swelling of montmorillonite

The swelling of montmorillonite - Discussions of the Faraday Society (RSC Publishing) Volume 18, 1954. Previous Article Next Article. From the journal:

Items where Subject is "Q Science > QD Chemistry > QD1 …

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Montmorillonite R110053

Name: Montmorillonite RRUFF ID: R110053 Ideal Chemistry: (Na,Ca) 0.3 (Al,Mg) 2 Si 4 O 10 (OH) 2 ·nH 2 O Locality: Chambers, Arizona, USA Source: Ward''s Natural Science Establishment, Inc. No. 23 Owner: RRUFF Description: Tan colored consolidated powder Status: The identification of this mineral has been confirmed only by X-ray diffraction

ORGANO-MODIFICATION OF MONTMORILLONITE

2021-7-23 · ORGANO-MODIFICATION OF MONTMORILLONITE

Energies | Free Full-Text | Effects of Salinity on ...

2021-8-3 · In marine sediments, seawater influences the phase behavior of natural gas hydrate. As a porous medium, the water distribution and physical properties of montmorillonite are influenced by the salt ions in seawater. In this work, the bound-water content in, and crystal structure of, montmorillonite is measured to investigate the effect of salt ions on the water distribution in montmorillonite.

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Removal of cobalt(II) ion from aqueous solution by ...

Montmorillonite (MMT) modified with chitosan (CTS, molecular weight=5×10(4)) was applied to remove heavy metal cations by using Co(2+) as a model ion. An increase in MMT interlayer distance observed from X-ray diffraction indicates the intercalation of CTS into MMT. Together with the results of scan …

Thermodynamics analysis of the adsorption of CH4 and …

2020-7-1 · Thermodynamics analysis of the adsorption of CH4 and CO2 on montmorillonite Applied Clay Science ( IF 5.467) Pub Date : 2020-07-01, DOI: 10.1016/j.clay.2020.105631

Montmorillonit – Wikipedia

2021-7-28 · Montmorillonit ist ein häufig vorkommendes Mineral aus der Mineralklasse der „Silikate und Germanate" mit der chemischen Zusammensetzung (Na,Ca) 0,3 (Al,Mg) 2 Si 4 O 10 (OH) 2 ·nH 2 O und damit chemisch gesehen ein Natrium-Aluminium …

montmorillonite (CHEBI:133353)

montmorillonite: ChEBI ID CHEBI:133353: Definition An aluminosilicate mineral consisting of aluminosilicate layers approximately 1 nm thick which are surface-substituted with metal cations and stacked in ca. 10 μm-sized multilayer stacks. Its approximate formula is R + 0.33 (Al,Mg) 2 Si 4 O 10 (OH) 2.nH 2 O ...

Laboratory investigation on effects of organic …

2021-1-29 · In this paper, organic montmorillonite (OMMT) was added into crumb rubber modified asphalt (CRMA) to improve its high temperature performance, anti-aging performance and storage stability. The effects of different OMMT content on properties of CRMA were studied. The rutting factor obtained by dynamic shear rheological (DSR) test was adopted to evaluate the high-temperature performance. …

Organically Modified Montmorillonite

In Handbook of Nucleating Agents, 2016. 10.34 POLYURETHANE. Clay (organically-modified montmorillonite) nucleation led to additional soft segment crystallinity in nanocomposites. 1 Sharp crystalline reflections related to the soft and hard segment domains were observed from x-ray diffraction patterns. 1 The crystallinity of the silver nanowire/TPU nanocomposite films increased with silver ...

Caffeine Adsorption of Montmorillonite in Coffee Extracts

The growth in health-conscious consumers continues to drive the demand for a wide variety of decaffeinated beverages. We previously developed a new technology using montmorillonite (MMT) in selective decaffeination of tea extract. This study evaluated and compared decaffeination of …

Montmorillonite

Montmorillonite (Mt) was the first clay mineral used to prepare CPN in the 1980s by the researchers from the Toyota Research Center in Japan. Their seminal papers are considered to be pioneer work in the field of CPN (Fukushima and Inagaki, 1987; Kojima et al., 1993; Usuki et al., 1993 ).

File:Montmorillonite-en.svg

2008-2-25 · Montmorillonite structure, with English labels 2007 Image:Montmorillonit.svg German version by Andreas Trepte, translated by User:Itub German version: Image:Montmorillonit.svg

Montmorillonite nanosheets with enhanced photodynamic ...

Montmorillonite (MMT), as a naturally sourced and FDA-approved biomaterial, has attracted considerable attention due to its extensive application in biomedical areas, such as intestinal ailments, drug delivery, and additive manufacturing. In this work, two-dimensional montmorillonite (2D-MMT) ultrathin nanos

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Molecular Dynamic Simulations of …

2021-3-12 · Enhanced oil recovery is becoming commonplace in order to maximize recovery from oil fields. One of these methods, low-salinity enhanced oil recovery (EOR), has shown promise; however, the fundamental underlying chemistry requires elucidating. Here, three mechanisms proposed to account for low-salinity enhanced oil recovery in sandstone reservoirs are investigated using molecular …

Montmorillonite K 10, powder | 1318-93-0

Montmorillonite is a layered clay mineral (2:1 phyllosilicate) that belongs to a class of the smectite group. It is a naturally abundant material and is chemically modified by the cation-exchange method for the preparation of polymer nanocomposites.

Molecular dynamics simulation of methane in potassium ...

2006-9-7 · Molecular structures and thermodynamic properties of water and cations in sodium montmorillonite under ambient conditions have been investigated by Chang et al . The hydrophobic hydration of methane [3, 4] has also been studied. Titiloye and Skipper have reported molecular dynamics simulation of methane in sodium montmorillonite clay hydrates.

(montmorillonite)

2014-1-26 · (montmorillonite) (Na,Ca)0 33(Al,Mg)2[Si4O10](OH)2·H2O,。Montmorillon。,0 2~1,

Montmorillonite

Bentonite is a phyllosilicate that belongs to the montmorillonite group. It is composed of stacks of sheets, each of which has three layers: an octahedral layer (Oc), consisting of hydrated aluminum, sandwiched between two tetrahedral (Te) layers, formed by SiO2. Its symbol is Te-Oc-Te (2:1).

Montmorillonite R110052

Name: Montmorillonite RRUFF ID: R110052 Ideal Chemistry: (Na,Ca) 0.3 (Al,Mg) 2 Si 4 O 10 (OH) 2 ·nH 2 O Locality: Santa Rita, New Mexico, USA Source: Ward''s Natural Science Establishment, Inc. No. 11 Owner: RRUFF Description: Unconsolidated grains Status: The identification of this mineral has been confirmed only by X-ray diffraction ...

Molecular Dynamics Simulation Studies of Interlayered ...

Molecular structure and position in the interlayers of lithium-, sodium-, and potassium-montmorillonite with 32, 64 and 96 water molecules were investigated by molecular dynamics simulation. Calculated results show that the position of ions in the interlayers of montmorillonite was related with tetrahedral and octahedral charge sites and ion size.

Effect of montmorillonite superfine composite on growth ...

A feeding trial was conducted to study the effect of montmorillonite superfine composite (MSC) on growth performance and tissue lead levels in pigs. Sixty barrows were randomly divided into two groups. They were fed the same basal diet supplemented with 0 or 0.5% MSC, respectively, for 100 days. Ser …

Montmorillonite

2018-10-23 · Montmorillonite 【】 【】100860-201302 【】 X-。20℃ 75% 12 X-。 【】 【】1g/ 【】,。

Montmorillonite

 · Montmorillonite (Mt) is a phyllosilicate mineral with nanolayered structure. Its layered structure (ca. 1 nm in thickness) consists of stacked layers, and each layer is composed of two O Si O tetrahedral sheets sandwiching one O Al(Mg) O octahedral sheet (ca. 100 nm × 100 nm, in width and length). Due to the isomorphous substitution, the layer is positively charged and then cations are ...

An Introduction to Montmorillonite Purification | IntechOpen

2021-8-3 · Purification of montmorillonite is a process to remove non clay minerals (gangue) such as calcite, feldspar, quartz, opal (C-T), and mica from montmorillonite ore. This is performed to make montmorillonite suitable for use in sensitive applications such as pharmaceutical, cosmetic, food, and advanced materials for nanotechnology. Gangue minerals in raw montmorillonite ores can cause …

Organic montmorillonite produced an interlayer locking ...

The interfacial bonding between an inorganic clay and an organic polymer is weak although clay is usually used as a reinforcement phase in polymers. In this study, montmorillonite (MMT) was organically modified with (3-aminopropyl)triethoxysilane (KH550) and incorporated into poly(ε-caprolactone) (PCL) to en

Perovskite LaFeO 3 /montmorillonite nanocomposites ...

2016-1-18 · Perovskite LaFeO3/montmorillonite nanocomposites (LaFeO3/MMT) have been successfully prepared via assembling LaFeO3 nanoparticles on the surface of montmorillonite …

Emerging hierarchical ternary 2D nanocomposites ...

2020-3-9 · Emerging hierarchical ternary 2D nanocomposites constructed from montmorillonite, graphene and MoS2 for enhanced electrochemical hydrogen Chemical Engineering Journal ( IF 13.273), DOI: Kang Peng, Hongjie Wang, Hongfei Gao, Pengfei Wan, Mingbo Ma, Xiaoyu Li

MINERALS OF THE MONTMORILLONITE GROUP

2010-10-3 · montmorillonite group, and in particular their behavior towards water. Interpretations of chemical analyses are based on knowledge of the crystal lattice of montmorillonite and related minerals. This lattice is of a layer type in which silicon and aluminum ions have tetrahedral coordination with respect to oxygen. ...

An Orally Administered [email protected]

2020-9-13 · Safe, effective, and convenient administration of therapeutic nanomaterials is one of the greatest difficulties in nanomedicine. To tackle this challenge, a system which couples multi-enzyme mimicking CeO 2 nanoparticles with clinically approved montmorillonite (MMT) for inflammatory bowel disease (IBD) therapy is reported. CeO 2 exhibits superoxide dismutase- and catalase-like activities, …

Mechanism of carboxymethyl chitosan hybrid …

The carboxymethyl-chitosan-montmorillonite (CMC-MMT) organic-inorganic hybrid material was applied to adsorb Pb(II) and Congo red (CR) anionic dye from aqueous solution. Molecular dynamics(MD) simulation was carried out to reveal the mechanism of CMC hybrid MMT. The …

Calcium montmorillonite clay reduces urinary biomarkers …

Calcium montmorillonite (i.e. NovaSil, NS) is a possible dietary intervention to help decrease chronic aflatoxin exposure where populations are at risk. Previous studies show that an oral dose of NS clay was able to reduce AF exposure in a Ghanaian population. In vitro analyses from our laboratory indicated that FB₁ (like aflatoxin) could ...

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2021-6-11 · Montmorillonite-supported with Cu2O nanoparticles for damage and removal of Microcystis aeruginosa under visible light. Applied Clay Science, 2016,132-133 :79-89(SCI) 5.

Facile synthesis of g-C3N4/montmorillonite composite …

2016-9-1 · XRD patterns of montmorillonite, g-C 3 N 4, organic montmorillonite, and CN/M composites are displayed in Fig. 3.As for pure g-C 3 N 4, the characteristic diffraction peaks at 12.8 ° and 27.8 ° can be indexed as (100) and (002) diffraction planes .The former peak can be attributed to the inter-layer structural packing arrangement and the latter peak is due to the long-range interplanar ...

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