Skip to main content Accessibility help
×
Home
Hostname: page-component-559fc8cf4f-qpj69 Total loading time: 0.239 Render date: 2021-03-07T09:26:59.462Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }

Properties of synthetic goethites with Co for Fe substitution

Published online by Cambridge University Press:  09 July 2018

U. G. Gasser
Affiliation:
Centre de Pédologie Biologique, U.P.R. 6831 du C.N.R.S. associée à l'Université Henri Poincaré, Nancy, 17, rue Notre-Dame des Pauvres, B.P. 5, F 54501 Vandœuvre-lès-Nancy, France
E. Jeanroy
Affiliation:
Centre de Pédologie Biologique, U.P.R. 6831 du C.N.R.S. associée à l'Université Henri Poincaré, Nancy, 17, rue Notre-Dame des Pauvres, B.P. 5, F 54501 Vandœuvre-lès-Nancy, France
C. Mustin
Affiliation:
Centre de Pédologie Biologique, U.P.R. 6831 du C.N.R.S. associée à l'Université Henri Poincaré, Nancy, 17, rue Notre-Dame des Pauvres, B.P. 5, F 54501 Vandœuvre-lès-Nancy, France
O. Barres
Affiliation:
Laboratoire “Environnement et Minéralurgie”, U.R.A. 235 du C.N.R.S., B.P. 40, F 54501 Vandœuvre-lès-Nancy, France
R. Nüesch
Affiliation:
Labor für Tonmineralogie, Institut für Geotechnik ETHZ, CH 8092 Zürich, Switzerland
J. Berthelin
Affiliation:
Centre de Pédologie Biologique, U.P.R. 6831 du C.N.R.S. associée à l'Université Henri Poincaré, Nancy, 17, rue Notre-Dame des Pauvres, B.P. 5, F 54501 Vandœuvre-lès-Nancy, France
A. J. Herbillon
Affiliation:
Centre de Pédologie Biologique, U.P.R. 6831 du C.N.R.S. associée à l'Université Henri Poincaré, Nancy, 17, rue Notre-Dame des Pauvres, B.P. 5, F 54501 Vandœuvre-lès-Nancy, France

Abstract

Isomorphic substitution in goethites is common in nature and the properties of goethites generally change as a function of the degree of substitution (e.g. Al-goethites). In synthetic goethites, substitution by other elements such as Co is also known. Recent literature indicates that the influence of Al and Co on the unit-cell dimensions of goethite is similar. In contrast to Al-goethites, however, little is known about other properties of Co-goethites and in this study some properties of synthetic Co-goethites were investigated by XRD, IR, TEM, TGA and reductive dissolution techniques. Eight goethite samples (S1 to S8) with varying Co concentrations were synthesized from mixed alkaline solutions of Fe(III) nitrate and Co(II) nitrate, aged at 63°C and ambient pressure. The goethites contained up to 9.5 mol.% Co. Their redness increased with Co concentration, e.g. 0.5 Y 6.0/6.4 for S1 and 6.4 YR 3.3/3.2 for S8. Surface area ranged from 46 to 88 m2/g. Unit-cell parameters a, b, c and v all showed a negative linear dependency on the Co concentration of the goethites. Transmission and diffuse reflectance IR spectrometry showed the presence of strong bands which were interpreted as v-OH, δ-OH and γ-OH vibrations. The δ-OH and γ-OH band positions showed a positive linear dependency on the Co concentration of the samples. Dehydroxylation occurred between 280 and 315°C and dehydroxylation peak positions tended to decrease with increasing Co concentrations. As with Al-goethites, Co-goethite reductive dissolution rates decreased parabolically with increasing substitution. X-ray diffraction and IR analyses, TGA and congruent reductive dissolution suggest the existence of single phases, i.e. Co-goethites of varying degrees of isomorphic substitution.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1996

Access options

Get access to the full version of this content by using one of the access options below.

References

Boer, J.H. DE, Linsen, B.G. & Osinga, T.J. (1965) Studies on pore systems in catalysts. VI. The universal t curve. J. Catalysis, 4, 643–648.Google Scholar
Borcgaad, O.K. (1990) Kinetics and mechanisms of soil iron oxide dissolution in EDTA, oxalate and dithionite. Sci. Géol., Mém. 85, 139148.Google Scholar
Brunauer, S., Emmett, P.H. & Teller, E. (1938) Adsorption of gases in multi-molecular layers. J. Am. Chem. Soc. 60, 309319.CrossRefGoogle Scholar
Cambier, P. (1986) Infrared study of goethites of varying crystallinity and particle size: I: Interpretation of the OH and lattice vibration frequencies. Clay Miner. 21, 191200.CrossRefGoogle Scholar
Carlson, L. & Schwertmann, U. (1990) The effect of CO2 and oxidation rate on the formation of goethite versus lepidocroref from an Fe(lI) system at pH 6 and 7. Clay Miner. 25, 6571.CrossRefGoogle Scholar
Cornell, R.M. (1991) Simultaneous incorporation of Mn, Ni and Co in the goethite (α-FeOOH) structure. Clay Miner. 26, 427430.CrossRefGoogle Scholar
Cornell, R.M. & Giovanoli, R. (1989) Effect of cobalt on the formation of crystalline iron oxides from ferrihydrite in alkaline media. Clays Clay Miner. 37, 6570.CrossRefGoogle Scholar
Geng, S. & Jackson Hills, F. (1989) Biometrics in Agricultural Science. Kendall Hunt, Dubuque (IA, USA).Google Scholar
Gerth, J. (1990) Unit cell dimensions of pure and trace metal-associated goethites. Geochim. Cosmochim. Acta, 54, 363371.CrossRefGoogle Scholar
Harrison, J.B. & Berkheiser, V.B. (1982) Anion interactions with freshly prepared hydrous iron oxides. Clays Clay Miner. 30, 97102.CrossRefGoogle Scholar
Kumar, R., Ray, R.K. & Biswas, A.K. (1990) Physicochemical nature and leaching behaviour of goethites containing Ni, Co, Cu in the sorption and coprecipitation mode. Hydrometallurgy, 25, 61–83.CrossRefGoogle Scholar
Jimenez Mateos, J.M., Macias, M., Morales, J. & Tirado, J.L. (1990) Mn and Co substitution in δ-FeOOH and its decomposition products. J. Materials Sci. 25, 52075214.CrossRefGoogle Scholar
Lim-Nunez, R. & Gilkes, R.J. (1987) Acid dissolution of synthetic metal-containing goethites and hematites. Proc. Int. Clay Conf., Denver, 197-204.Google Scholar
Mehra, O.P. & Jackson, M.L. (1960) Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate. International Series of Monographs on Earth Sciences. Clays Clay Miner. 5, 317327.Google Scholar
Müller-Vonmoos, M., Kahr, G. & Rub, A. (1977) DTATG-MS in the investigation of clays. Quantitative determination of H2O, CO and CO2 by evolved gas analysis with a mass spectrometer. Thermochim. Acta, 20, 387393.CrossRefGoogle Scholar
Russell, J.D., Paterson, E., Fraser, A.R. & Farmer, V.C. (1975) Adsorption of carbon dioxide on goethite (a- FeOOH) surfaces, and its implications for anion adsorption. J. Chem. Soc. Faraday Trans. I 71, 16231630.CrossRefGoogle Scholar
Schulze, D.G. (1982) The identification of iron oxides by differential X-ray diffraction and the influence of aluminum substitution on the structure of goethite. PhD thesis, Technische Universität München, Germany.Google Scholar
Schulze, D.G. (1984) The influence of aluminum on iron oxides. VIII. Unit-cell dimensions of Al-substituted goethites and estimation of Al from them. Clays Clay Miner. 32, 3644.CrossRefGoogle Scholar
Schwarzmann, E. & Sparr, H. (1969) Die Wasserstoffbrtickenbindung in Hydroxiden mit Diasporstruktur. Zeitschrift für Naturforschung 24B, 8-11.Google Scholar
Schwertmann, U. (1984a) The double dehydroxylation peak of goethite. Thermochim. Acta, 78, 39–46.CrossRefGoogle Scholar
Schwertmann, U. (1984b) The influence of aluminium on iron oxide. IX. Dissolution of Al-goethites in 6M HCl. Clay Miner. 19, 919.CrossRefGoogle Scholar
Schwertmann, U. & Pfab, G. (1994) Structural vanadium in synthetic goethites. Geochim. Cosmochim. Acta, 58, 43494352.CrossRefGoogle Scholar
Schwertmann, U. & Taylor, R.M. (1989) Iron oxides. Pp. 380–438 in: Minerals in Soil Environments (Dixon, J.B. & Weed, S.B., editors). Soil Sci. Soc. Am., Madison (WI, USA).Google Scholar
Schwertmann, U., Gasser, U. & Sticher, H. (1989) Chromium-for-iron substitution in synthetic goethites. Geochim. Cosmochim. Acta, 53, 12931297.CrossRefGoogle Scholar
Secal, M.G. & Sellers, R.M. (1984) Redox reactions at solid-liquid interfaces. Pp. 97–129 in: Advances in Inorganic and Bioinorganic Mechanisms 3 (Sykes, A.G., Editor), Academic Press, London (UK).Google Scholar
Steel, R.G.D. & Torrie, J.H. (1980) Principles and Procedures of Statistics: a Biometrical Approach. McGraw-Hill, New York (NY, USA).Google Scholar
Torrent, J., Schwertmann, U. & Barron, V. (1987) The reductive dissolution of synthetic goethite and hematite in dithionite. Clay Miner. 22, 329–337.CrossRefGoogle Scholar
Wolska, E. & Schwertmann, U. (1993) The mechanism of solid solution formation between goethite and diaspore. N. Jb. Miner. Mh. 1993, 213223.Google Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 10 *
View data table for this chart

* Views captured on Cambridge Core between 09th July 2018 - 7th March 2021. This data will be updated every 24 hours.

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Properties of synthetic goethites with Co for Fe substitution
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Properties of synthetic goethites with Co for Fe substitution
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Properties of synthetic goethites with Co for Fe substitution
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *