Hi

Very interesting question, I think you need to convert the biomass to graphite and then from graphite you can prepare CNTs

Thanks

Please have a look at these useful links.

https://www.researchgate.net/publication/272792052_Catalyst-Free_Synthesis_of_Multiwalled_Carbon_Nanotubes_via_Microwave-Induced_Processing_of_Biomass

https://www.researchgate.net/publication/276433469_ChemInform_Abstract_Biomass-Derived_Porous_Carbon_Materials_Synthesis_and_Catalytic_Applications

https://www.researchgate.net/publication/216253430_Synthesis_of_multiwalled_carbon_nanotubes_from_bamboo_charcoal_and_the_roles_of_minerals_on_their_growth

Article Catalyst-Free Synthesis of Multiwalled Carbon Nanotubes via ...

Article ChemInform Abstract: Biomass‐Derived Porous Carbon Materials...

Article Synthesis of multiwalled carbon nanotubes from bamboo charco...

Dear Hassan,

Please check these PDF attachments also.

Good luck

Thanks Ahmed for your answer

Thanks Arvind for your answer