Chemically modified smectites
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چکیده
منابع مشابه
Electrodes Modified with Synthetic Clay Minerals: Electrochemistry of Cobalt Smectites
-Hydrothermal treatment of a mixture of silicic acid, cobalt chloride, sodium dithionite and sodium hydroxide at 250 ~ under 500 psi of argon produced a pink solid. X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and electron diffraction data showed the product to be a well-crystallized smectite. SEM/EDX analysis gave a unit cell formula of [(Si8.05)(Co558)O20(OH)4]Na066....
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Sorption of molecular amines by montmorillonite involves protonation of the amine group and hydrolysis of the interlayer cation. Sorption and subsequent desorption of amines may render some of the interlayer cations non-exchangeable, thus causing partial 'chloritization' of the montmorillonite. The effect is stronger with interlayer A1 than Ca ions and depends upon the amine sorbed. I N T R O D...
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ژورنال
عنوان ژورنال: Clay Minerals
سال: 2003
ISSN: 0009-8558,1471-8030
DOI: 10.1180/0009855033810083