Synthesis and characterization of silica gels obtained from Tunisian sand
Written by sctunisie no commentsSilica gels were obtained by alkaline attack of Tunisian sand. The influence of several pysico-chemical parameters such as temperature, pH, molar ratio K2O/SiO2 size particles and reaction time able to act on the transformations sand-sol and sol-gel was studied. The aerogels obtained by hypercritical drying showed a 5000 m2/g specific area.
J. Bouaziz, B. Elleuch, R. El Gharbi
Pages 411-419