Near infrared spectroscopy of stearic acid adsorbed on montmorillonite
| Data(s) |
01/02/2010
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| Resumo |
The adsorption of stearic acid on both sodium montmorillonites and calcium montmorillonites has been studied by near infrared spectroscopy complimented with infrared spectroscopy. Upon adsorption of stearic acid on Ca-Mt additional near infrared bands are observed at 8236 cm-1 and is assigned to an interaction of stearic acid with the water of hydration. Upon adsorption of the stearic acid on Na-Mt, the NIR bands are now observed at 5671, 5778, 5848 and 5912 cm-1 and are assigned to the overtone and combination bands of the CH fundamentals. Additional bands at 4177, 4250, 4324, 4337, 4689 and 4809 cm-1 are attributed to CH combination bands resulting from the adsorption of the stearic acid. Stearic acid is used as a model molecule for adsorption studies. The application of near infrared spectroscopy to the study of this adsorption proved most useful. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
Elsevier BV |
| Relação |
http://eprints.qut.edu.au/30986/1/c30986.pdf DOI:10.1016/j.saa.2009.12.001 Lu, Longfei, Cai, Jingong, & Frost, Ray L. (2010) Near infrared spectroscopy of stearic acid adsorbed on montmorillonite. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 75(3), pp. 960-963. |
| Direitos |
Copyright 2010 Elsevier BV |
| Fonte |
Faculty of Science and Technology |
| Palavras-Chave | #030600 PHYSICAL CHEMISTRY (INCL. STRUCTURAL) #030603 Colloid and Surface Chemistry #030606 Structural Chemistry and Spectroscopy #montmorillonites, stearicacid, Near infrared spectroscopy, adsorption, structured water |
| Tipo |
Journal Article |
