Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-28T05:25:22.571Z Has data issue: false hasContentIssue false
  • English
  • Français

Addition of Al2O3 nanoparticles to bentonite: effects on surface charge and Cd sorption properties

Published online by Cambridge University Press:  01 July 2014

Natalia Mayordomo ,
Ursula Alonso ,
Tiziana Missana ,
Ana Benedicto  and
Miguel García-Gutiérrez
Natalia Mayordomo
Affiliation:
CIEMAT, Department of Environment, Avenida Complutense 40 28040 Madrid (SPAIN)
Ursula Alonso
Affiliation:
CIEMAT, Department of Environment, Avenida Complutense 40 28040 Madrid (SPAIN)
Tiziana Missana
Affiliation:
CIEMAT, Department of Environment, Avenida Complutense 40 28040 Madrid (SPAIN)
Ana Benedicto
Affiliation:
CIEMAT, Department of Environment, Avenida Complutense 40 28040 Madrid (SPAIN)
Miguel García-Gutiérrez
Affiliation:
CIEMAT, Department of Environment, Avenida Complutense 40 28040 Madrid (SPAIN)
Get access

Abstract

Compacted bentonite barrier in radioactive waste repositories is expected to prevent radionuclide migration, due to its high sorption capability for many radionuclides. This study analyses whether the addition of Al2O3 nanoparticles (NPs) enhances the sorption properties of bentonite. The study was carried out with 109Cd, highly pollutant heavy metal and divalent fission product. Sorption experiments were conducted in NaClO4 at different ionic strengths (5·10-4 to 10-1 M) and pH (2 to 10), using mixtures of sodium homoionised bentonite and Al2O3 in different proportions.

It has been probed that addition of Al2O3 NPs to bentonite enhances Cd sorption at pH higher than 6. The effect of Al2O3 NPs addition on the surface properties of bentonite colloids was also analyzed by measuring particle size and surface charge in all studied systems.

Keywords

Cdadsorptiongeologic
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1665: Symposium NW – Scientific Basis for Nuclear Waste Management XXXVII , 2014 , pp. 131 - 137
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Mockovciaková, A., Orolínová, Z., Skvarla, J., Journal of Hazardous Materials 180 274–281 (2010).CrossRefGoogle Scholar
Shahwan, T., Üzüm, Ç., Eroğlu, A.E., Lieberwirth, I., Applied Clay Science 47 257–262 (2010).CrossRefGoogle Scholar
Huertas, F. et al. . Report EUR 19147 EN. European Commission, Brussels (2000).Google Scholar
Tombácz, E., Libor, Z., Illés, E., Majzik, A., Klumpp, E., Organic Geochemistry 35 3, 257–267 (2004).CrossRefGoogle Scholar
Zhou, D., Abdel-Fattah, A., Keller, A. A., Environmental Science & Technology 46, 7520–7526 (2012).10.1021/es3004427CrossRefGoogle Scholar
Purna Chandra Rao, G., Satyaveni, S., Ramesh, A., Seshaiah, K., Murthy, K.S.N., Choudary, N.V., Journal of Environmental management 81, 265–272 (2006).CrossRefGoogle Scholar
Zhao, D., Chena, S., Yangb, S., Yangb, X., Yangb, S., Chemical Engineering Journal 166, 1010–1016 (2011).CrossRefGoogle Scholar
Hamidpour, M., Kalbasi, M., Afyuni, M., Shariatmadari, H., Holm, P. E., Brunn Hansen, H. Ch., Journal of Hazardous Materials 181, 686–691(2010)10.1016/j.jhazmat.2010.05.067CrossRefGoogle Scholar
Kozar, S., Bilinski, H., Branica, M., Schwuger, M.J., The Science of the Total Environment 121, 203 (1992).CrossRefGoogle Scholar
Naiya, T. K., Bhattacharya, A. K., Das, S. K., J. Colloid & Interface Science 333,14–26 (2009).CrossRefGoogle Scholar
Kosma, Ch., Balomenou, G., Salahas, G., Deligiannakis, Y., J. Colloid & Interface Science 331, 263 (2009).CrossRefGoogle Scholar
Missana, T., Garcia-Gutierrez, M., Alonso, U., Physics and Chemistry of the Earth, (33), S156 (2008).CrossRefGoogle Scholar
van der Lee, J. and DeWindt, L., CHESS tutorial and cookbook. Technical Report École des Mines, LHM/RD/99/05 Paris-France (1999).Google Scholar
Missana, T., Adell, A., Journal of Colloid and Interface Science 230, 150–156 (2000).CrossRefGoogle Scholar
Ghosh, S., Mashayekhi, H., Pan, B., Bhowmik, P. and Xing, B., Langmuir 24, 12385 (2008).CrossRefGoogle Scholar
Darlington, T.K., Neigh, A.M., Spencer, M.T., Nguyen, O.T. and Oldenburg, S.J., Environ. Toxicol. Chem. 28, 1191 (2009).CrossRefGoogle Scholar
Molinard, A., Clearfield, A., Zhu, H.Y. and Vansant, E.F., Microporous Mater 3, 109 (1994).CrossRefGoogle Scholar
Zhou, D., Abdel-Fattah, A., Keller, A. A., Environmental Science & Technology 46, 7520–7526 (2012).CrossRefGoogle Scholar
Missana, T. and Garcia-Gutierrez, M., Physics and Chemistry of the Earth 32, 559–567(2007).CrossRefGoogle Scholar
Baeyens, B. and Bradbury, M.H., Journal of Contaminant Hydrology 27, 199–222 (1997).CrossRefGoogle Scholar