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      Sorption of Cs+ and Ba2+ on magnesite

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      Author(s)
      Shahwan, Talal
      Süzer, Şefik
      Erten, Hasan N.
      Date
      1998
      Source Title
      Materials Research Society Symposium Proceedings
      Print ISSN
      0272-9172
      Publisher
      Cambridge University Press
      Volume
      506
      Pages
      915 - 921
      Language
      English
      Type
      Conference Paper
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      Abstract
      Sorption behavior of Cs and Ba ions on magnesite was studied using the radiotracer method complemented by X-ray photoelectron spectroscopy. Cs and Ba were used as radiotracers. The sorption of Cs is seen to be temperature dependent, whereas Ba sorption is not much affected by temperature changes. It was found that Freundlich type isotherms provide an adequate description of the sorption process. The magnitude of the free energy of sorption are seen to be within the 8-16 kj/mol range. It can be remarked that the sorption of Cs and Ba on magnesite is a fast process suggesting an ion exchange type mechanism, mainly taking place at the surface of mineral particles.
      Keywords
      Barium
      Cesium
      Fractionation
      Free energy
      Ion exchange
      Particle size analysis
      Radioactive tracers
      Reaction kinetics
      Saturation
      Sorption
      Thermal effects
      X ray photoelectron spectroscopy
      Freundlich isotherms
      Magnesite
      Permalink
      http://hdl.handle.net/11693/27688
      Published Version (Please cite this version)
      https://doi.org/10.1557/PROC-506-1079
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      • Department of Chemistry 677
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