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Characteristics of Mineralogy and Nanocrystals of Ingredient Materials of $Lumilite^{(R)}$ for Water Treatment  

Lee, Jin-Kook (Ecological River Environment Technology Institute)
Park, Hi-Ho (Institute of SteinWeiss Lumilite, Kyushu Univ.)
Choo, Chang-Oh (Ecological River Environment Technology Institute)
Publication Information
Journal of the Mineralogical Society of Korea / v.21, no.1, 2008 , pp. 27-35 More about this Journal
Abstract
Characterization of mineralogy and nanocrystals of ingredient materials of $Lumilite^{(R)}$ used for water treatment was made using optical microscopy, XRD, SEM, FTIR, and XRF analyses. Constituent minerals identified by XRD and microscope are clinoptilolite, illite, quartz, and albite, characterized by dense and fine texture. The cross section of nanocrystals with the size $70{$\sim}100\;nm$ is generally round or subround. Numerous spheroids with few nanometers in diameter are extensively formed on the surface of nanocrystals. Bulk chemistry is $SiO_2$ $74.22{\sim}75.65\;wt.%$, $Al_2O_3$ $13.25{\sim}13.72\;wt.%$, CaO $4.23{\sim}5.15\;wt.%$, with other major elements being minimal. When heated to $700^{\circ}C$, the crystal structure was mostly destroyed, though it persisted to $500^{\circ}C$. It is likely that high capacity and applications of $Lumilite^{(R)}$ for water treatment are originated from its structural properties such as development of nanocrystals and various tiny pores.
Keywords
$Lumilite^{(R)}$; clinoptilolite; illite; nanocrystals;
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Times Cited By KSCI : 4  (Citation Analysis)
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