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CO2/CH4 mixture adsorption is very important in different fields like, for example, a biogas purification. Using a comprehensive experimental approach based on volumetric and in-situ FTIR measurements the new results of CO2/CH4 mixture separation on a carbon film are reported. The application of this experimental approach makes it possible to elaborate the effect of enhanced CH4 adsorption at low...
The adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide (GO) were studied. The adsorption kinetic data were well described with pseudo-second-order model and the equilibrium data were well fitted by Langmuir model. The calculated thermodynamic parameters indicated that the adsorption of Cr(III) on GO was spontaneous and endothermic. The maximum adsorption capacity of Cr(III)...
In this study, pigeon peas hulls powder, a low-cost agricultural by-product, was used as adsorbent for the removal of Pb(II) and Ni(II) ions from aqueous solutions. The adsorbent was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. The adsorption characteristics were explored using well-established and effective parameters including the effect of pH, contact...
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