Variable temperature diffuse reflectance infrared Fourier transform spectroscopic investigation of the effect of ball milling on the water sorbed to kaolin

BREEN, C., ILLES, J., YARWOOD, J. and SKUSE, D. R. (2007). Variable temperature diffuse reflectance infrared Fourier transform spectroscopic investigation of the effect of ball milling on the water sorbed to kaolin. Vibrational Spectroscopy, 43 (2), 366-379.

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Link to published version:: https://doi.org/10.1016/j.vibspec.2006.04.022
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    Abstract

    Variable temperature DRIFTS has been used to investigate temperature variation of the number and population of the different environments occupied by water on unmilled kaolin and samples ball milled for 3, 10 and 30 min. Increasing the milling time resulted in structural damage of the kaolin and an increase in the amount of hydrogen bonded water indicated by bands in the OH stretching and bending regions. Curve fitting of the spectra, collected at 50 degrees C intervals in the temperature range 25-500 degrees C, established that the intensity of the bands diminished as the temperature was increased but also revealed bands that were more stable to high temperatures or were generated as the sample temperature was increased. Bands at 3750, 3386 and 3200 cm(-1) and 1680, 1650, 1634 and 1600-1580 cm(-1) were identified in the OH-stretching and bending regions, respectively. In particular a band at 1670 cm(-1) has been attributed to strongly hydrogen bonded water which acts to hold the deformed kaolin sheets together. Upon aging the samples the intensity of this band decreased and was replaced by a band at 1630 cm-1. Boehmite was tentatively identified as a product of the milled kaolin. (c) 2006 Elsevier B.V. All rights reserved.

    Item Type: Article
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Polymers, Composites and Spectroscopy Group
    Identification Number: https://doi.org/10.1016/j.vibspec.2006.04.022
    Page Range: 366-379
    Depositing User: Jill Hazard
    Date Deposited: 14 May 2010 11:04
    Last Modified: 18 Mar 2021 21:15
    URI: http://shura.shu.ac.uk/id/eprint/1841

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