Batch sorption isotherms of 1,3,5-trichlorobenzene, 1,3,5-trinitrobenzene, and tetracycline to organic-free montmorillonites and soils receiving heat treatment (375°C for 24 h) were compared with those to unheated sorbents. Sorption of the nonpolar 1,3,5-trichlorobenzene to soil was lowered after the removal of humus by heating, consistent with the mechanism of hydrophobic partition into organi...

Recently, Supercritical fluids have been used in material synthesis and processing because of their special properties such as high diffusivity, low viscosity, and low surface tension. Supercritical carbon dioxide is the most attractive because it is non-toxic, non-flammable, and has moderate critical temperature and critical pressure. Moreover, and can also swell most polymers. In this study, ...

-An attempt has been made to synthesize nitrogenous clay minerals hydrothermally from silicaalumina gels in the presence of amino acids, namely glycine and lysine, The products have been characterized by X-ray powder diffraction, by analyses for C and N contents, and by their infrared spectra. Amino acid-montmorillonites have been prepared under hydrothermal conditions of 200-250~ and 1000 atm....