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Articles by K. Adouby
Total Records ( 3 ) for K. Adouby
  K. Adouby , M.L. Elidrissi Moubtassim , C. Perez Vicente , J.C. Jumas and A.A. Toure
  The SnS-Bi2S3 phase diagram (a pseudo binary section of the Bi-Sn-S ternary system) has been constructed by using the X-ray powder diffraction and the thermal analyses (DTA and DSC). This diagram shows a non-stoichiometric phase over a not well-defined composition domain, with a peritectic reaction at 548°C and two narrower solid solution domains. It is established from the lattice parameter variation that the solid solution range based on the orthorhombic SnS extends till 8 mol% Bi2S3. The electronic local order around tin atoms has been characterized by means of 119Sn Mössbauer spectroscopy. The hyperfine parameters (isomer shift and quadrupole splitting) are typical of tin at the oxidation state II.
  E.B. Kpangni , Y.Y.J. Andji , K. Adouby , S. Oyetola , G. Kra and J. Yvon
  This study deals with two clays referenced K1 and K2, used in the local and traditional manufacture of pottery ware at Katiola. Those samples were analysed by X-rays diffraction, infrared spectroscopy and thermal differential and chemical techniques. The results show that the samples (K1 and K2) are mainly composed of montmorillonite, kaolinite and illite. Only K1 is inter-stratified. The mineralogical balance achieved from the reflection (001) of the oriented film, indicate for K1: 74.5% of montmorillonite; 13.5% of inter-stratified clay; 7% of kaolinite and 5.4% of illite and for K2: 73.4% of montmorillonite; 23.5% of kaolinite and 3.1% of illite. The results also indicate that the raw material may not be use only for pottery. It can be consider in the protection of the environment, cosmetic industry, vegetable oil treatment, medicine etc.
  L.C. Koffi Akissi , K. Adouby , E.N. Wandan , B. Yao and K.P. Kotchi
  Studies on a batch sorption process using Triplochiton scleroxylon sawdust as a low cost sorbent produced by wood industry was investigated to remove lead ions from aqueous solution. The sorption process follows a pseudo second-order rate kinetics at different dosage of sawdust and at different Pb(II) initial concentration. The Freundlich and Langmuir sorption models were used for the mathematical description of the equilibrium and isotherm constants were also evaluated, the maximum sorption capacity of Pb(II) in single component system was determined to be 26.38 mg g-1 at 30±2°C and at an initial pH of 4. The sorption process showed that copper, cadmium or both metals in aqueous solutions suppressed the removal of lead ions by sawdust. These results indicated that ion exchange is one of the major sorption mechanisms for binding Pb(II) ions into sawdust.
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