Formation of Nanodiamonds during Pyrolysis of Butanosolv Lignin.

ABSTRACT: The preparation of artificial diamonds has a long history driven by decreased costs compared to naturally occurring diamonds and ethical issues. However, fabrication of diamonds in the laboratory from readily available biomass has not been extensively investigated. This work demonstrates a convenient method for producing nanodiamonds from biopolymer lignin at ambient pressure. Lignin was extracted from Douglas Fir sawdust using a butanosolv pretreatment and was pyrolyzed in N₂ at 1000 °C, followed by a second thermal treatment in 5% H₂/Ar at 1050 °C, both at ambient pressure. This led to the formation of nanodiamonds embedded in an amorphous carbon substrate. The changes occurring at various stages of the pyrolysis process were monitored by scanning electron microscop

SUBMITTER: Feng Y 

PROVIDER: S-EPMC11394345 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature