Structural Changes in Carbon Nanotube Based Filters Induced by Irradiation with Helium Ions.

Autor: Elsehly, E. M., Evseev, A. P., Vorobyeva, E. A., Balakshin, Yu. V., Chechenin, N. G.
Zdroj: Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; Dec2021 Supplement, Vol. 15 Issue 1, pS60-S65, 6p
Abstrakt: Current investigation shows that ion beam irradiation can improve the surface functionality of carbon nanotubes by creating disorder sites. He+ ions with an energy of 100 keV and a fluence of 1 × 1016 cm–2 irradiated filters made of pressed multi-walled carbon nanotubes. Removal of Ni(II) from aqueous solutions using pristine and ion irradiated multi-walled carbon nanotube filters was investigated as a function of pH, initial Ni(II) concentration, filter weight, and contact time. For a 10 ppm Ni(II) concentration, irradiated filters showed a 99% increase in Ni(II) removal performance, implying that ion irradiated filter is a better Ni(II) adsorbent from aqueous solutions than pristine one. Irradiated filters are highly hydrophilic, have high solution flux and high absorption ability. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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