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In this work, we report a new class of inexpensive and abundant montmorillonite clay-based catalysts for this purpose, which can be readily tuned by simple ion-exchange with acid or …
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Cation exchange at clay interfaces mediates a number of fundamental processes while remains poorly understood. Herein, different types of binary A a+ /B b+ ions at …
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Key words: dimethyl ether; steam reforming; hydrogen production; acid-activated montmorillonite; Cu/ZnO/Al2O3 Compared with other fuel cells, proton exchange membrane …
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Naturally abundant and non-toxic Montmorillonite (MMT) is a novel support to accommodate NPs, due to its negative surface charge and control release of NPs and ions.
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This review examines recent advance in engineering montmorillonite into metal ion-exchanged montmorillonite catalysts, acid-activated montmorillonite catalysts, organo-montmorillonite …
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Membranes incorporating two-dimensional (2D) materials have shown great potential for water purification and energy storage and conversion applications. Their ordered …
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Advanced natural ion-exchange materials for anti-corrosion pigments can be clay minerals with a labile structure, especially montmorillonite, a clay mineral constituent of the …
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The development of a cost-effective and eco-friendly catalyst with superior activity for low-temperature selective catalytic reduction of NO X with NH 3 (NH 3-SCR) is an urgent …
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12.3.2.2 Ion exchange and electrochemical processes. The ion exchange method is used for removing heavy metals from wastewater and PW. An ion exchanger is a solid that can …
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Montmorillonite with chemical formula (Na,Ca) 0.3 (Al,Mg) ... attracts minute particles and then settles to the bottom. MMT is an effective absorbance for heavy metals but …
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In this review, we give a brief overview of recently developed montmorillonite-based heterogeneous catalysts used for efficient organic reactions. Cation-exchanged …
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Montmorillonite's ion exchange capacity is often seen as a niche feature, but it has profound applications in improving soil health and ensuring more sustainable agricultural …
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Two laboratory grade montmorillonite samples with CEC of 71 (montmorillonite A) and 22 (montmorillonite B) mmol/100 g respectively were used in this study. Experimental …
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In general, montmorillonite-templated Fe/Ni bimetallic particles preparation process involved co-precipitation method and ion exchange/adsorption method, which occurs …
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Ion exchange membranes (IEMs) are playing an increasingly crucial role in various applications, with their diverse uses expanding year after year [1].The IEMs are polymeric films …
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The ion-exchange capacity (IEC) relates to the amount of charged functional groups per unit volume of dry membrane, which are in interaction with water and mediate ion transport. The …
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Modification of nanoclay montmorillonite (MMT) can be done through conventional ion exchange method using cationic surfactants. Montmorillonite (MMT) was modified with …
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Montmorillonite (Mt) is a phyllosilicate mineral (Alateyah et al., 2013; Bergaya et al., 2013) and is characterized by nanolayered structure.Its crystal structure (ca 1 nm in thickness) …
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Adsorption by clay minerals has been regarded to be an effective, economical, simple and reusable approach for control of heavy metals [8], [10].Bentonite contains mainly …
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The cation exchange selectivity in the Na-montmorillonite interlayer has been extensively studied as a part of the mechanism of the cation exchange reaction, which also …
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The hydrogel maintained the lamellar structure of MMTNS, which significantly enhanced Ga(III) adsorption, achieving a maximum adsorption capacity of 85.95 mg/g. The …
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Ion exchange is a powerful and versatile chemical process used for purification, separation, and decontamination across various industries. It involves the exchange of ions between two …
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Surface modification of montmorillonite by the use of organic cations via conventional ion exchange method. Johannes Chanra 1, ... (MMT) can be done through …
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Montmorillonite (MMT) is known as an ion-exchangeable material, and cations between MMT nanosheets are easily exchanged by other cations. In this work, Ca 2+, Fe 3+, and Al 3+ intercalated two-dimensional MMT …
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Montmorillonite (MMT) is known as an ion-exchangeable material, and cations between MMT nanosheets are easily exchanged by other cations. In this work, Ca2+, Fe3+, …
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The content of montmorillonite and cation exchange capacity are increased to 75% and 80 mmol/100 g, respectively. Sodium montmorillonite (Na-MMT) is prepared from the …
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In this work, a series of CeMn- supported montmorillonite (MMT) were synthesized via a cation exchange reaction. The effects of the valence state of the Mn precursor, acid or …
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Herein, the excessive expansion of the interlayer spacing could weaken the molecular interaction between the intercalated PPy and the MMT layer, leading to the ion …
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The ion exchange of Zn 2+ cations with exchangeable cations of natural montmorillonite occurs in the interlayer space of aluminosilicate layers as a result of …
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Ion-exchanged montmorillonite as simple and effective … A sulphated tin ion-exchanged montmorillonite (SO4²⁻/Sn-MMT) was successfully prepared by the ion exchange method of …
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Abstract Montmorillonite, a natural and abundant clay, was subjected to acid treatments in HCl solutions for different times to enhance its physicochemical properties for …
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Based on the natural ion exchange property of MMT, protonated TEPA can exchange into the interlayer of MMT membranes and the hydrophobic chain of TEPA can …
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