Synthesis of intercalated Al-hydroxy-montmorillonite
Montmorillonite from Durango, Mexico, of composition (Si3.88Al0.12)(Al1.41Mg0.59)O10(OH)2(Ca0.07Mg0.11Na0.28K0.06), surface area 42.07 m²g-1, d001 spacing 12.50 Å, and pore volume 0.002 cm³g-1, was intercalated with Al-hydroxy oligomer. The modified clay developed a surface area of 287.86 m²g-1, pore volume of 0.103 cm³g-1, and d001 spacing of 18.70 Å. Dehydration to 70 °C shift the d001 spacing to 17.29 Å; dehydroxylation started at 150 °C and by 300 °C had lost 1.92 w% and reduced the d001 spacing to 17.34 Å.
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| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Química de México A.C.
2006
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2006000100007 |
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