Over a period of more than 300 h, the CV concentration of all of the samples plateaus at below 8.5 × 10 –7 M and, overall, no further leaching was observed, indicating stability of the dye in the ...

The absorption spectra in Figure 3(iv) displayed that the hydrophobic OOSS dye has a greater affinity for the β-CD cavity instead of the hydrophilic crystal violet (CV) dye. In the case of competitive ...

THE ‘molecular-sieve’ properties of chabazite, a zeolite occurring in basaltic rocks, have been studied extensively. Molecules such as argon (diameter 3.84 A.) and methane (4.25 A.) are ...