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The influence of pH on organovermiculite structure stability

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F14%3A86092429" target="_blank" >RIV/61989100:27640/14:86092429 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.sciencedirect.com/science/article/pii/S0169131714000866" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0169131714000866</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>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The influence of pH on organovermiculite structure stability

  • Original language 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(+)) and the other modified with hexadecylpyridinium (HDP+) ions, was investigated at pH values from 1 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 mediaand 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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

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

Others

  • Publication year

    2014

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Applied Clay Science

  • ISSN

    0169-1317

  • e-ISSN

  • Volume of the periodical

    93-94

  • Issue of the periodical within the volume

    květen 2014

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    17-22

  • UT code for WoS article

    000335618100004

  • EID of the result in the Scopus database