Journal ArticleDOI
The Effect of Acid and Heat Treatment on Montmorillonoids
TLDR
In this article, it was found that at temperatures of around 100°C, H-montmorillonite changed to Al-saturated montmorillonites within 24 hours, with octahedral Al moving more rapidly than tetrahedral Al.Abstract:
H-montmorillonite, -beidellite, and -nontronite were found to change spontaneously into Al-clays. Rates of conversion of H- to Al-clay were slow at 0°C, but at temperatures of around 100°C, moist H-montmorillonite changed to Al-saturated montmorillonite within 24 hours. It appeared that Al-ions moved from lattice positions to exchange positions, with octahedral Al moving more rapidly than tetrahedral Al.read more
Citations
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Book ChapterDOI
Mechanisms of adsorption of s-triazines by clay colloids and factors affecting plant availability.
TL;DR: The behavior of one family of these organic compounds, the s-triazines, at the molecular level, in systems in which the chemicals are associated with clay minerals is discussed.
Journal ArticleDOI
Adsorbed water on clay: a review
TL;DR: A review of the literature on adsorbed water can be found in this paper, where the authors present a re-interpretation of data that may lead to inferences or conclusions not intended by the original author.
Journal ArticleDOI
Age hardening of agricultural top soils
W. H. Utomo,Anthony R. Dexter +1 more
TL;DR: In this paper, changes in the strength of remoulded agricultural top soil with ageing are studied for two sandy loam soils from South Australia and a clay soil from Queensland, and the effect of age hardening for these soils was investigated using probe penetration, tensile strength and compression resistance measurements.
Journal ArticleDOI
Sensitive life detection strategies for low-biomass environments: optimizing extraction of nucleic acids adsorbing to terrestrial and Mars analogue minerals.
TL;DR: The most efficient method comprised a high phosphate solution introduced at the cell-lysing step in DNA extraction, to promote chemical competition with DNA for adsorption sites, and proved suitable for the recovery of low molecular weight DNA (< 1.5 kb).
Journal ArticleDOI
The advantages of clay mineral modification methods for enhancing adsorption efficiency in wastewater treatment: a review.
Shima Barakan,Valeh Aghazadeh +1 more
TL;DR: This review discusses the recent trends in the research over the last 30 years to use clay minerals in natural and modified forms for removing different toxic organic/inorganic pollutants and shows the importance of modification methods and more extension of novel clay preparation based on nanotechnology which could raise the control of pollution.
References
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Journal ArticleDOI
Irreversible Dehydration in Montmorillonite
TL;DR: In this paper, Mering showed that the temperature to which one required to heat montmorillonite to produce irreversible collapse of the c-axis depended on the exchangeable cation.
Journal ArticleDOI
Chemistry of Clay Cracking Catalysts
Journal ArticleDOI
Some Properties of h- and Al-Clays and Exchange Resins
M. E. Harward,N. T. Coleman +1 more
Journal Article