Adsorption of Phosphate by Various Oxides: Theoretical Treatment of the Adsorption Envelope
نویسنده
چکیده
An explanation ís put forward for the shape of adsorption envelopes found for phosphate adsorption by various metallic oxides. The equation x m '" C l (p.H PO. + 3 J.t¿;anions) is proposed, where J.tH 3 PO. is the chemícal potential of undissociated H3 PO.; J.t¿;anions is the chemical potential of all phosphate anions considered as one. component; CI is a constant that incIudes influences of surface charge, chemical affinity of the metal ror phosphate, specific surface area, etc., and X m is the calculated Langmuir maximum adsorption of P at each pH. The dependence of C I on the metal present in the oxide is shown.
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تاریخ انتشار 2012