Double-walled carbon nanotubes suspending by natural active substances (saponins and humic acids)
1 Laboratory of Chemical Engineering, University Saad Dahlab of Blida, Road of Soumaa, BP. 270, Algeria
2 CIRIMAT, University Paul Sabatier, Toulouse, France
a e-mail: email@example.com
Carbon nanotubes (CNTs) discovered over the past fifteen years are very interesting materials because of their structural, mechanical, chemical and electronic properties. However, their poor dispersion after synthesis constitutes a real obstacle to their use in varied fields. To respond to a topical issue, we proposed a new concept based on the use of natural active substances such a saponins; biosurfactant extracted from the tree Sapindus Mukorossiand humic acids. The results showed that for a concentration of 1.5 mg/l of saponin and 5 mg/l of humic acids, the stable suspensions were obtained; the zeta potential measurements have justified these results.
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