Adsorption of phosphate by various oxides: theoretical treatment of adsorption envelope
An explanation is put forward for the shape of adsorption envelopes found for phosphate adsorption by various metallic oxides. The equation xm= C1(mH3PO4+mEanions) is proposed, where mH3PO4 is the chemical potential of undissociated H3PO4; mEanions is the chemical potential of all phosphate anions c...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1977 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/60196 |
| Acceso en línea: | http://hdl.handle.net/10261/60196 |
| Access Level: | acceso abierto |
| Sumario: | An explanation is put forward for the shape of adsorption envelopes found for phosphate adsorption by various metallic oxides. The equation xm= C1(mH3PO4+mEanions) is proposed, where mH3PO4 is the chemical potential of undissociated H3PO4; mEanions is the chemical potential of all phosphate anions considered as one component; C1 is a constant that includes influences of surface charge, chemical affinity of the metal for phosphate, specific surface area, etc., and xm is the calculated Langmuir maximum adsorption of P at each pH. The dependence of C1 on the metal present in the oxide is shown. |
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