About: The influence of pH on organogravermiculite structure stability

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	There is a large amount of research and application studies in the topic of organically modified vermiculites and their properties. In this work, the stability of two organovermiculites, one modified with hexadecyltrimethylammonium (HDTMA + )andtheothermodified with hexadecylpyridinium (HDP +) ions,wasinvestigatedatpHvaluesfrom1 to 14 at laboratory temperature. The organovermiculites in the pH range of 4–10 were stable. In addition, the HDTMA + - vermiculite was stable in strong alkaline media and under extreme acidic conditions as well. However, HDP +-vermiculite underwent significant decomposition when exposed to strong acidic or alkaline conditions (pH 1, 2 and 12, 14). The prepared and tested materials were investigated using X-ray diffraction (XRD) method, Fourier transform infrared (FTIR) spectrometry, total organic carbon content (TOC), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The leaching of structural cations was determined as well. There is a large amount of research and application studies in the topic of organically modified vermiculites and their properties. In this work, the stability of two organovermiculites, one modified with hexadecyltrimethylammonium (HDTMA + )andtheothermodified with hexadecylpyridinium (HDP +) ions,wasinvestigatedatpHvaluesfrom1 to 14 at laboratory temperature. The organovermiculites in the pH range of 4–10 were stable. In addition, the HDTMA + - vermiculite was stable in strong alkaline media and under extreme acidic conditions as well. However, HDP +-vermiculite underwent significant decomposition when exposed to strong acidic or alkaline conditions (pH 1, 2 and 12, 14). The prepared and tested materials were investigated using X-ray diffraction (XRD) method, Fourier transform infrared (FTIR) spectrometry, total organic carbon content (TOC), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The leaching of structural cations was determined as well. (en)
Title	The influence of pH on organogravermiculite structure stability The influence of pH on organogravermiculite structure stability (en)
skos:prefLabel	The influence of pH on organogravermiculite structure stability The influence of pH on organogravermiculite structure stability (en)
skos:notation	RIV/61989100:27710/14:86092713!RIV15-MSM-27710___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0069)
http://linked.open...iv/cisloPeriodika	93-94
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Peikertová, Pavlína
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Institut environmentálních technologií
http://linked.open...dnocenehoVysledku	21546
http://linked.open...ai/riv/idVysledku	RIV/61989100:27710/14:86092713
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	pH, Vermiculite, Organovermiculite, HDTMA, HDP, Stability (en)
http://linked.open.../riv/klicoveSlovo	pH Organovermiculite Vermiculite Stability HDP HDTMA
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[4027FFC53E8A]
http://linked.open...i/riv/nazevZdroje	Applied Clay Science
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	ENET - Energy Units for Utilization of non Traditional Energy Sources
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	1
http://linked.open...iv/tvurceVysledku	Plachá, Daniela Simha Martynková, Gražyna Seidlerová, Jana Peikertová, Pavlína Alicja, Bachmatiuk Mark H., Rummeli
issn	0169-1317
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.clay.2014.03.008
http://localhost/t...ganizacniJednotka	27710

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