Thermal, spectral and diffraction properties of Hg(II)-exchanged montmorillonite with alkylamines

Autor:	R. Janík, E. Jóna, V. Pavlík, Z. Jankurová, M. Loduhová, Z. Harmatová, R. Durný, S. C. Mojumdar, V. Bizovská
Rok vydání:	2014
Předmět:	Steric effects Chemistry Inorganic chemistry Trimethylamine chemistry.chemical_element Infrared spectroscopy Condensed Matter Physics Mercury (element) Thermogravimetry chemistry.chemical_compound Montmorillonite Physical and Theoretical Chemistry Dimethylamine Powder diffraction
Zdroj:	Journal of Thermal Analysis and Calorimetry. 119:879-884
ISSN:	1588-2926 1388-6150
DOI:	10.1007/s10973-014-4172-x
Popis:	Many papers have been published concerning the influence of different steric properties of metylamine, dimethylamine and trimethylamine on the type of interactions with different exchanged montmorillonite and their properties. The most effective active sites in montmorillonite are placed between two silicate layers, where the naturally occurring cations can easily be replaced by heavy metals and organic groups. Mercury is one of the most serious contaminants in environment. All forms of mercury are poisonous; however, organic mercury species are the most dangerous. It is harmful even in very small amount and presents a significant environmental threat. The results of thermogravimetry, differential thermogravimetry, X-ray powder diffraction and IR spectroscopy analysis show that methyl, dimethyl and trimethylamines are intercalated into the interlayer space of Hg-MMT. The effect of different steric properties of studied alkylamines is evident.
Databáze:	OpenAIRE
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