Paper Titles
Investigation of Thermal Stability of Zn(II), Pt(II) and Pd(II) Complexes with (E)-2-oxo-2-{N'-[1-(pyridin-2-yl)ethylidene]hydrazino}acetamide
p.375
2-D Computer Simulation of Rapid Solidification
p.381
Computer Simulation of Grain Coarsening during Liquid Phase Sintering
p.387
Mechanically Activated Synthesis of CaTiO3 from Mixture of CaO and TiO2
p.393
Adsorption of Tiron onto Alumina
p.399
Comparison of Hydroxyapatite Sorption Properties towards Cadmium, Lead, Zinc and Strontium Ions
p.405
Dilatometer Investigations of Reactive Sintering of Zinc Titanate Ceramics
p.411
Application of the Master Sintering Curve Theory to Non-Isothermal Sintering of BaTiO3 Ceramics
p.417
Hot Pressing of Y2O3 Doped Si3N4 Ceramics
p.423

Adsorption of Tiron onto Alumina

Article Preview

Abstract:

It has been shown recently that small organic molecules, used as dispersants in the colloidal processing of ceramic powders to adjust the forces between the particles, are quite efficient in preparing aqueous suspensions of high solid loadings and low viscosity. One of them is 4,5-dihydroxy-1,3-benzenedisulfonic acid, disodium salt monohydrate, ((OH)2C6H2(SO3Na)2·H2O), commercially known as Tiron. The adsorption of Tiron, as a function of its concentration and solution pH, onto alumina was investigated by the solution depletion method, applying UV spectrophotometry. KNO3 (10-2 mol/l) was used as the background electrolyte. The obtained results indicate an increase in the amount of adsorbed Tiron with its increasing concentration. The maximum adsorption was recorded at pH≈7 when the Tiron molecule was uncharged, i.e. undissociated (pKa1=7.6). The experimental data were fitted with different adsorption isotherm models. The maximum amount of Tiron adsorbed, as well as the constants of adsorption process were calculated.

You might also be interested in these eBooks
Current Research in Advanced Materials and Processes View Preview

Info:

Periodical:

Materials Science Forum (Volume 494)

Pages:

399-404

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.494.399

Citation:

Cite this paper

Online since:

September 2005

Authors:

J.J. Roćen, Lj.S. Čerović, S.K. Milonjić

Keywords:

Adsorption, Aluminum (Al), Isotherm, Tiron

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] R.J. Pugh in Surface and Colloid Chemistry in Advanced Ceramics Processing, Vol. 51, Eds. R.J. Pugh and L. Bergstrom (Marcel Dekker, USA 1994), p.166.

Google Scholar

[2] E. Laarz and L. Bergstrom, J. Eur. Ceram. Soc., Vol. 20 (2000), p.431.

Google Scholar

[3] R. Moreno, Am. Ceram. Bull., 71 (1992), p.1521.

Google Scholar

[4] L. Guo, Y. Zhang, N. Uchida and K. Uematsku, J. Am. Ceram. Soc., 81 (1998), p.549.

Google Scholar

[5] J. Cesarano III and I.A. Aksay, J. Am. Ceram. Soc., Vol. 71 (1998), p.1062.

Google Scholar

[6] J. Cesarano III, I.A. Aksay and A. Bleir, J. Am. Ceram. Soc., Vol. 71 (1998), p.250.

Google Scholar

[7] G. Pederse and L. Bergstrom, J. Am. Ceram. Soc., Vol. 82 (1999), p.1137.

Google Scholar

[8] P.C. Hidber, T.J. Graule and L.J. Gauckler, J. Am. Ceram. Soc., Vol. 79 (1996), p.1857.

Google Scholar

[9] P.C. Hidber, T.J. Graule and L.J. Gauckler, J. Eur. Ceram. Soc., Vol. 17 (1997), p.239.

Google Scholar

[10] O. Lyckfeldt and J.M. Ferreira, Key Eng. Mater., Vol. 132-136 (1997), p.313.

Google Scholar

[11] G. Tari, J.M.F. Ferreira and O. Lyckfeldt, J. Eur. Ceram. Soc., Vol. 17 (1997), p.1341.

Google Scholar

[12] G. Tari, J.M.F. Ferreira and O. Lyckfeldt, J. Eur. Ceram. Soc., Vol. 18 (1998), p.479.

Google Scholar

[13] B.J. Briscoe, A. U. Khan and P.F. Luckham, J. Eur. Ceram. Soc., Vol. 18 (1998), p.2141.

Google Scholar

[14] R. Laucournet, PhD Thesis, University of Limoges, Limoges, France (2000).

Google Scholar

[15] A.U. Khan, B.J. Briscoe and P.F. Luckham, Colloids Surfaces A, Vol. 161 (2000). p.243.

Google Scholar

[16] R. Laucournet, C. Pagnoux and J. Baumard, J. Am. Ceram. Soc., Vol. 83 (2000), p.2661.

Google Scholar

[17] C. Pagnoux, R. Laucournet, T. Chartier, J. Baumard, Korean J. Ceram., Vol. 6 (2000), p.280.

Google Scholar

[18] S.A. Wasay, C. Tokunaga and S-W. Park, Sep. Sci. Technology, 31 (1996), p.1501.

Google Scholar

[19] Ž. Todorović, S.K. Milonjić and V.T. Dondur, Mater. Sci. Forum, Vol. 453-454 (2004), p.361.

Google Scholar