Montmorillonite impregnated with bismuth nitrate has been found to be an excellent reagent for the synthesis of several nitro compounds of biological significance in high yield.

A mild and efficient catalytic method for synthesis of 5-alkoxycarbonyl-4-aryl-3, 4dihydropyrimidin-2(1H)-ones using KSF montmorillonite as catalyst is described.

In this work, a magnetically separable montmorillonite/Fe3O4 sphere composite (MMT/Fe) was synthesized by simple polyol thermal method. The characteristics of the as-preparation composites were checked XRD, SEM, PL technologies. addition, photocatalytic activities products degradation Rhodamin B (RhB) under visible light. results showed that MMT/Fe exhibited high activity for RhB removal light ...

The interaction of aminotriazole (AMT) at pH 4 on Wyoming montmorillonite (mainly with Na ions) and Mg-vermiculite has been studied by X-ray diffraction and infrared spectroscopy. The AMT is adsorbed on montmorillonite in the cationic form by cation exchange. The amount of pesticide adsorbed was 71 mEq/100 g, which comprises *91% of the CEC of this sample (78.2 mEq/100 g). Saturation was reache...

Humic acids and clays are important soil components that influence the sorption and desorption of organic contaminants; however, it is unclear how humic acids influence the sorption of organic contaminants onto clays and their subsequent desorption. Sorption and desorption of 2,4,6-trichlorophenol (2,4,6-TCP) by and from humic acid-modified K(+)- and Ca(2+)-montmorillonite and -illite were comp...

novel citric acid modified starch-carboxy methyl cellulose (cmc) -montmorillonite (mmt) bionanocomposite films were prepared by casting method and the effect of mmt on the structural and physical properties of the starch-cmc biocomposites was studied. x-ray diffraction test showed thatstrong polar interactions between the hydroxyl groups present in the starch and cmc chains and in the silicate ...

Hybrid pigments based on carminic acid (CA) stabilized by clay minerals have been prepared. Three different pathways were used: [email protected]; protected] saponite; and hydrogels of saponite-CA or montmorillonite-CA covered polyorganosilane (POS). Pigments characterized a set techniques including X-Ray diffraction (XRD), transmission electron microscopy (TEM), infrared spectroscopy (FTIR), s...

Nano ZnO/ montmorillonite composite were prepared by sol gel method under ultrasonic irradiation from directly mixing montmorillonite nano clay into Zinc gel. The Zn(CH3COO)2.2H2O and montmorillonite nano clay was used as precursor. The zinc acetate was dissolved in DI water and, NH3 (aq) solution was dropped into the zinc solution until pH 9 consequently the zinc gel was produced. The montmori...