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Abstract:

Adsorption experiments are rarely included in undergraduate general chemistry laboratories, even though this phenomenon is of great importance from both applied and theoretical points of view. We present a laboratory experiment on the adsorption of phosphate on goethite (an iron oxide, α-FeOOH) as a case study that opens the doors to the discussion of surface properties, interfaces, acid-base equilibrium, molecular structure, and solid state chemistry, among other topics. We also describe a pedagogical implementation of this experiment that allows students to work cooperatively.

Registro:

Documento: Artículo
Título:Adsorption of phosphate on goethite: An undergraduate research laboratory project
Autor:Tribe, L.; Barja, B.C.
Filiación:Pennsylvania State University, Reading, PA 19610-6009, United States
INQUIMAE, Fac. de Ciencias Exactas y Naturales, Univ. de Buenos Aires, Capital Federal 1428, Argentina
Palabras clave:Adsorption; Hazards; Interfaces (materials); Ions; Iron oxides; Molecular structure; Research laboratories; Surface properties; Acid base equilibrium; Goethite; Phosphate adsorption; Solid state chemistry; Phosphates
Año:2004
Volumen:81
Número:11
Página de inicio:1624
Página de fin:1627
Título revista:Journal of Chemical Education
Título revista abreviado:J Chem Educ
ISSN:00219584
CODEN:JCEDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219584_v81_n11_p1624_Tribe

Referencias:

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  • Chen, Y.D.R., Buther, J.N., Stumm, W., (1973) Environ. Sci. Technol., 7, pp. 327-332
  • Edzwald, J.K., Toensing, D.C., Leung, M.C.-Y., (1976) Environ. Sci. Technol., 10, pp. 485-490
  • Bowden, J.W., Nagarajah, S., Barrow, N.J., Posner, A.M., Quirk, J.Q., (1980) J. Soil Res., 18, pp. 49-60
  • Anderson, M.A., Tejedor-Tejedor, M.I., Stanforth, R.R., (1985) Environ. Sci. Technol., 19, pp. 632-637
  • Sigg, L., Stumm, W., (1981) Colloid Surfaces, 2, pp. 101-117
  • Atkinson, R.J., Posner, A.M., Quirk, J.P., (1968) J. Inorg. Nucl. Chem., 30, pp. 2371-2375
  • (1971) Standard Methods for the Examination of Water and Wastewater, , 13th ed.; American Public Health Association: NY
  • Langmuir, D., (1997) Aqueous Environmental, , Geochemistry Prentice Hall: Upper Saddle River, NJ
  • Geelhoed, J.S., Hiemstra, T., Van Riensdijk, W.H., (1997) Geochimica et Cosmochimica Acta, 61, pp. 2389-2396

Citas:

---------- APA ----------
Tribe, L. & Barja, B.C. (2004) . Adsorption of phosphate on goethite: An undergraduate research laboratory project. Journal of Chemical Education, 81(11), 1624-1627.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219584_v81_n11_p1624_Tribe [ ]
---------- CHICAGO ----------
Tribe, L., Barja, B.C. "Adsorption of phosphate on goethite: An undergraduate research laboratory project" . Journal of Chemical Education 81, no. 11 (2004) : 1624-1627.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219584_v81_n11_p1624_Tribe [ ]
---------- MLA ----------
Tribe, L., Barja, B.C. "Adsorption of phosphate on goethite: An undergraduate research laboratory project" . Journal of Chemical Education, vol. 81, no. 11, 2004, pp. 1624-1627.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219584_v81_n11_p1624_Tribe [ ]
---------- VANCOUVER ----------
Tribe, L., Barja, B.C. Adsorption of phosphate on goethite: An undergraduate research laboratory project. J Chem Educ. 2004;81(11):1624-1627.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219584_v81_n11_p1624_Tribe [ ]