it can be expected ...... CNTs always show the shifting in the graphitic band after any treatment like fictionalization or doping...Its depends on the treatemnts..

You might see a small shift. However, depending on the resolution of your instrument, it might not be observable. You are more likely to see significant changes in the radial breathing modes (RBM) of the CNT.

Thank you Mark sir for your Valuable answer.

You are quite welcome.