The Raman spectroscopy of CNTs have three main bands. The R.S.D band is very important to calculate the diameter of the tube as I know but in the case of the MWCNTs, haw can the diameter be calculated, referring to the inner or outer diameter?
Could this presentation help you? Luc Henrard. "Raman Spectroscopy of Carbon Nanotubes" - http://perso.fundp.ac.be/~lhenrard/Pdf/ECONOS.pdf
ZnO are insoluble in water. So the adsorption of ZnO onto CNTs is difficult.
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ethylene glycol monobutyl ether
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