March 2022
Volume 74    Issue 3

Effect of corn oil addition to TCMA-modified clay on ZEN removal

Hue, Kerri-Ann A.; El-Midany, Ayman A.; El-Shall, Hassan E.


Modifying the hydrophobicity of clay is necessary to accommodate large mycotoxin molecules such as zearalenone (ZEN). In this study, tricaprylmethylammonium (TCMA) chloride and common corn oil were used to modify clay. The results indicate that more than 90 percent of ZEN could be removed using clays modified by TCMA and corn oil at acidic and neutral pH due to the expansion of intergallery spacing as a result of TCMA surfactant intercalation within the clay-forming layers. The removal percentage depends on the pH and amount of clay used. Complete removal can be achieved at acidic pH and small clay amount.

Full-text paper:
Mining, Metallurgy & Exploration (2021) 38:2493–2499,


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