The influence of pH on organogravermiculite structure stability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F14%3A86092713" target="_blank" >RIV/61989100:27740/14:86092713 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27730/14:86092713 RIV/61989100:27710/14:86092713

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.clay.2014.03.008" target="_blank" >http://dx.doi.org/10.1016/j.clay.2014.03.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.clay.2014.03.008" target="_blank" >10.1016/j.clay.2014.03.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of pH on organogravermiculite structure stability

Popis výsledku v původním jazyce

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 underextreme 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.

Název v anglickém jazyce

The influence of pH on organogravermiculite structure stability

Popis výsledku anglicky

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 underextreme 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0069" target="_blank" >ED2.1.00/03.0069: ENET - Energetické jednotky pro využití netradičních zdrojů energie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Clay Science

ISSN

0169-1317

e-ISSN

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Svazek periodika

1

Číslo periodika v rámci svazku

93-94

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

17-22

Kód UT WoS článku

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EID výsledku v databázi Scopus

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