Results 21 to 30 of about 3,944 (185)
Natural Mordenite from Spain as Pozzolana
Molecules, 2020 This work deals with anomalous concentrations of natural mordenite in the southeast of Spain. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) studies evidenced that the samples contain mainly monomineral zeolitic phase of mordenite (70%
Leticia Presa +3 more
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Smectite promotes probiotic biofilm formation in the gut for cancer immunotherapy
Cell Reports, 2021 Summary: Administration of probiotics to regulate the immune system is a potential anti-tumor strategy. However, oral administration of probiotics is ineffective because of the poor inhabitation of exogenous bacteria in host intestines.
Congwei Han +11 more
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The fate of smectite in KOH solutions [PDF]
American Mineralogist, 2006 The aim of the present study was to investigate the detailed evolution of the SAz-1 smectite in 1 M KOH at 80 °C at a solid/liquid ratio of 1/80. AFM observations indicated no change in crystal size or shape. XRD measurements at 40% relative humidity revealed changes in expandability of the smectite. The (001) reflection profile of smectite was modeled
Bauer, A. +6 more
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Cerâmica, 1999 The adsorption of sulphuric acid on smectite from acidic aqueous solutions was studied. The amounts of cations dissolved in each equilibrium solution were determined by chemical analysis.
E. L. Tavani, C. Volzone
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MAPPING REMOVAL SWELLING CLAY SOILS IN THE AURES (N’GAOUS) ALGERIA [PDF]
Analele Universităţii din Oradea: Seria Geografie, 2016 The shrinkage and swelling phenomena of certain clay soils cause differential settlement manifested by disorders that affect mainly the individual frame. The objective of this research was to create a map related to these phenomena especially in the area
Rahmani MOUNA +2 more
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PHYSICO-CHEMICAL PROPERTIES OF MONTMORILLONITE CLAYS AND THEIR APPLICATION IN CLINICAL PRACTICE (REVIEW) [PDF]
Research Results in Pharmacology, 2017 The review is devoted to the medical application of montmorillonite clay minerals. Properties and mechanisms of action of enterosorbents. The properties of the enterosorbents include an absorption capacity and active surface.
Anton Tishin +4 more
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Sorção de Diuron em minerais da fração argila
Química Nova, 2012 The objective of the present study was to evaluate the adsorption of the herbicide Diuron onto smectite and Fe oxides minerals. Ninety mg of each mineral, 1 mL of 0.15 mol L-1 CaCl2 and 8 mL of Diuron (0.25-10.00 mg L-1) were used in triplicates.
Izabel Cristina Leinig Araujo +3 more
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A review of possible mechanisms for mercury migration in diagenesis: Clay to pyrite
Frontiers in Earth Science, 2023 Though sedimentary mercury in marine sediments has been regarded as a geological indicator of volcanic activity based on volcanism activity is the dominant natural source of Hg to the oceans, the influence of diagenesis on mercury cannot be dismissed ...
Huan Xu +6 more
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Journal of Palaeogeography, 2014 Clay mineralogy was used as an indicator of the sediment source and prevailing climate and five suites (I–V) were identified throughout the borehole. Smectite was dominant in the bottom suite of the borehole, indicating the sediment was mainly derived ...
Jing Chen +4 more
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Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs
Deep Underground Science and Engineering, EarlyView.A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao +5 more
wiley +1 more source