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Surface modification of carbon whiskers by oxidation treatment

✍ Scribed by Masafumi Matsumoto; Toshikiyo Hashimoto; Katsuhide Murata; Shigeo Goto

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
570 KB
Volume
32
Category
Article
ISSN
0008-6223

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✦ Synopsis

To

modify the surface characters, carbon whiskers were oxidized with carbon dioxide. Adsorption isotherms were determined by using three kinds of adsorbates: nitrogen, n-butane, and trichloroethylene (TCE). Granular activated carbon was used as the standards of adsorbents. The surface chemical structures were analysed by using NaHCOs, Na2C0,, and NaOH. After CO: oxidation treatment of carbon whiskers, micropore structures of pore size distribution, having a sharp peak at a radius of 4 x lo-" m were developed, but acidities of acidific functional group were not increased. The oxidized carbon whiskers were better than the granular activated carbon for adsorption of TCE from aqueous solution.

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