Assessment of the surface areas of silica and clay in acid-leached clay materials using concepts of adsorption on heterogeneous surfaces.

@article{Nguetnkam2005AssessmentOT,
  title={Assessment of the surface areas of silica and clay in acid-leached clay materials using concepts of adsorption on heterogeneous surfaces.},
  author={Jean Pierre Nguetnkam and Raoul Kamga and Fr{\'e}d{\'e}ric Villi{\'e}ras and Georges Emmanuel Ekodeck and Ang{\'e}lina Razafitianamaharavo and Jean-Pierre Yvon},
  journal={Journal of colloid and interface science},
  year={2005},
  volume={289 1},
  pages={
          104-15
        }
}
Two clays of the areas of Kaélé and Kousseri (extreme North Cameroon) containing mainly smectites and minor amounts of kaolinite were activated with sulfuric acid (1 to 8 N). Crystal-chemical properties were studied using X-ray diffraction, Fourier transform infrared spectroscopy, and chemical analysis, while textural properties were analyzed by step-by-step nitrogen adsorption at 77 K and low-pressure quasi-equilibrium argon adsorption at 77 K. As is generally observed, smectite is more… CONTINUE READING

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