International Journal of Waste Resources

Department of Environmental Sciences, University of Yaounde, Yaounde, Cameroon

Publications

• Research Article   
  Design and Characterization of Porous Geopolymer for Dye Removal
  Author(s): Elton Yerima Ngu*, Julson Aymard Tchio, Linda Lekuna Duna, Cyriaque Rodrigue Kaze, Elie Kamseu, Tchakoute Kouamo Herve and Cristina Leonelli
  
  This study demonstrates the preparation of porous geopolymers using different foaming agents for dye removal in water using methylene blue as the model solution. The porous membranes were prepared by combining alkaline activation solution, aluminosilicate source (either clay-rich laterite or iron-rich laterite), amorphous silica (rice husk ash) with direct foaming (with either H2O2 or Al powder), followed by curing first at room temperature for two hours, then at 65°C for another two hours. The physical properties such as apparent porosity, bulk density, water absorption and stability in water were obtained to select porous geopolymer suitable for filtration. Results shows that the best porous geopolymer suitable for filtration were those prepared using hydrogen peroxide as foaming agent and have a rice husk content of ≤ 20%. Permeabil.. View more»
  

  DOI: 10.35248/2252-5211.23.13.522

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