2017-01-23T16:08:42 n4014

Spectra of kaolinite hydroxyls in dimethylsulphoxide-intercalated kaolinites at 77 K

Viewed: 146

The kaolinites from Kiralyhegy and Szeg in Hungary, examples of a low- and high-defect kaolinite were intercalated by mixing 300 mg of the kaolinite in 5 cm3 of anhydrous DMSO at 25°C using a magnetic stirrer for 80 h.  Raman spectra were measured using a Renishaw Raman microprobe. Experimental details have been published previously (Frost R.L., Tran T.H. & Kristof, J. (1997) Intercalation of an ordered kaolinite — a Raman microscopy study. Clay Miner. 32, 587–59 & Johansson U., Frost R.L., Forsling W. & Kloprogge J.T. (1998) Raman spectroscopy of the kaolinite hydroxyls at 77 K. Appl. Spectrosc. 52, 1277–1282.)

Figure 1 is Raman spectra in the OH- stretching region of DMSO- intercalcated (a) high-defect kaolinite at 298 K, (b) low-defect kaolinite at 298 K, (c) high-defect kaolinite at 77 K and (d) low-defect kaolinite at 77 K.  Figure 2 is the Raman spectrum of the OH-stretching region of low-defect kaolinite at 77 and 298 K.  Figure 3 shows a band component analysis of the Raman spectrum in the OH-stretching region of DMSO-intercalated low-defect kaolinite at 298 K.  Figure 4 is Band component analysis of the Raman spectrum in the OH-stretching region of DMSO-intercalated, low-defect kaolinite at 77 K.  Figure 5 shows band component analysis of the Raman spectrum in the OH-stretching region of DMSO-intercalated, high-defect kaolinite at 298 K.

Geographical area of data collection

kmlPolyCoords
22.898617,48.585234 16.113387,48.585234 16.113387,45.737089 22.898617,45.737089 22.898617,48.585234

Publications

R. L. Frost, J. Kristof, E. Horvath and J. T. Kloprogge. Kaolinite hydroxyls in dimethylsulphoxide-intercalated kaolinites at 77 K; a Raman spectroscopic study Clay Minerals(April 2000), 35(2):443-454 http://claymin.geoscienceworld.org/content/35/2/443.full#ref-20

Research areas

high-defect kaolinite
intercalation
DMSO
dimethylsulphoxide
low-defect kaolinite
Raman microscopy
DRIFT spectrometry
kaolinite

Cite this collection

Frost,R; Kristof,J; Horvath,E; Kloprogge,J.T. (2015): Spectra of kaolinite hydroxyls in dimethylsulphoxide-intercalated kaolinites at 77 K . [Queensland University of Technology]. http://dx.doi.org/10.4225/09/58859d8242068

Copyright

© 2000, The Mineralogical Society

Connections

Has association with
Ray Frost  (Researcher)

Contacts

Name: Emeritus Professor Ray Frost

Other

Date record created:
2015-07-13T11:59:12
Date record modified:
2017-01-23T16:08:42
Record status:
Published - Open Access