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|Title:||Superhydrophobic to hydrophilic transition of multi-walled carbon nanotubes induced by Na+ ion irradiation|
Ion beam irradiation
|Abstract:||Multi-walled carbon nanotubes (MWCNT) having diameter in the range of 5�30 nm were coated on silicon wafer using spray coating technique. The coated film was irradiated with 5 keV Na+ at a fluence of 1 � 1016 ions�cm?2. A large-scale welding is observed in the post-irradiated nanotube assembly under scanning electron microscope. We have studied dynamic wetting properties of the nanotubes. While the pristine MWCNT shows superhydrophobic nature, the irradiated MWCNT turns into hydrophilic. Our simulation based on iradina and experimental evidences show defect formation in MWCNT due to ion irradiation. We have invoked mechanism based on defect mediated adsorption of water, which plays major role for transition from superhydrophobic to hydrophilic. � 2017 Elsevier B.V.|
|Appears in Collections:||Research Publications|
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