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By a solution impregnation method, three modified stationary phases were prepared by contacting activated alumina with MnCl2 at different MnCl2:Al2O3 molar ratios = 1:10, 1:5, 1:2.5, respectively. N2 sorption isotherms at 78 K were examined for the unmodified and modified samples, from which pore size distributions (PSD) of textural properties were derived with density function theory. Elution chromatographic...
Amine-functionalized ordered mesoporous alumina (NH2-OMA) was synthesized through a facile and reproducible method. Its organic dyes adsorption characteristics, including adsorption isotherms, adsorption kinetics, the stability and reusability of the adsorbents were investigated. This material exhibited strong affinity to methylene blue and extremely high adsorption capacity. The maximum adsorption...
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