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Dispersive Behavior of Carbon Nanotubes in Aqueous Solution

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Abstract:

Carbon nanotubes (CNTs) were dispersed in aqueous solution with the inorganic compounds (H3O40PW12 and H3BO3) by ultrasonic agitation. The dependency relationship between the inorganic solution concentration and CNTs dispersity was investigated by spectrophotometry. The results show that H3O40PW12 and H3BO3 can promote CNTs dispersion in aqueous solution. CNTs disperse very well in the appropriate concentration. The optimal concentration of H3O40PW12 solution is 2mg/mL, and the optimal concentration of H3BO3 solution is 4mg/mL. CNTs static stability in H3BO3 solution is better than that in H3O40PW12. CNTs can still keep good dispersity in H3O40PW12 solution under high speed centrifugation. The strong adsorption effect between CNTs surface and inorganic compound induces the dispersive stability of CNTs in aqueous solution.

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Periodical:

Advanced Materials Research (Volume 744)

Pages:

293-296

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.744.293

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Online since:

August 2013

Authors:

Zhang Yue, Mei Yan Yu

Keywords:

Aqueous Solution, Carbon Nanotube (CN), Dispersion, Inorganic Compounds

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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