Modern Chemistry & Applications

Department of Process Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, Douala, Cameroon

Publications

• Research   
  Modeling of Tartrazine Dye Adsorption onto Treated and Untreated Cocoa Shell by Non-Linear Regression Methods
  Author(s): Michele Nana Nemgne, Alain Paul Nanssou Kouteu, Donald Raoul Tchuifon Tchuifon*, Christian Sadeu Ngakou, Ndifor-Angwafor George Nche and Anagho Solomon Gabche
  
  Tartrazine is a toxic industrial dye, and it is reported to affect water quality and is harmful to human health. The objective of this study is to contribute to elaborate less expensive adsorbents from cocoa shell for the elimination of tartrazine from aqueous solution. The effects of initial pH (2-8), contact time (0-90 min), mass of adsorbent (10-70 mg) and the nature of treatment were evaluated on the adsorption of tartrazine. The optimal conditions for the adsorption of tartrazine on all the substrates are pH=2, contact time=60 min, amount of adsorbent=40 mg. Nonlinear regression analysis showed the best fit for pseudo second order kinetics regardless of material with Chi-square (χ2) test values of 0.1672, 0.0811 and 0.0366 respectively for CC-H2O, CC-HNO3 and CC-H3PO4. Equilibrium data were fitted to .. View more»
  

  DOI: 10.35248/2329-6798.22.10.383

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