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Mesoporous calcined Mg–Al layered double hydroxides with different Mg/Al molar ratios were investigated for their ability to adsorb the commercial dye, C.I. Acid Blue 9, with a view to exploring their suitability as inorganic pigments in Ink Receptive Layer formulation. Uptake capacity was characterized using the Langmuir model and the resulting L-2/H-2 type plots indicated that the acid dye anions...
Layered double hydroxides (LDHs) of the type [Mg1-XAlX(OH)2]X+[(CO32-)X/2·mH2O] with variable Mg/Al molar ratios have been prepared by co-precipitation of Mg 2+ and Al 3+ ions at constant pH. The ability of these compounds to adsorb Acid Blue 9 has been evaluated by UV–Vis spectrophotometry, FT-IR spectroscopy, powder X-ray diffraction analysis, N 2 adsorption/desorption analysis,...
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