Formation of silver nanoparticles on lignin and two of its precursors
Tvorba srebrovih nanodelcev na ligninu in njegovih dveh prekurzorjih
Keywords:Coniferyl Alcohol, Lignin, Metastable Induced Electron Spectroscopy, Nanoparticle, Silver, Sinapyl Alcohol, Ultraviolet Photoelectron Spectroscopy, X-Ray Photoelectron Spectroscopy, Atomic Force Microscopy
Metastable Induced Electron Spectroscopy, Ultraviolet Photoelectron Spectroscopy (He I and He II), X-ray Photoelectron Spectroscopy, and Atomic Force Microscopy were employed to study the interaction of silver with lignin as well as with two of its natural precursors, coniferyl alcohol and sinapyl alcohol. For all three of them, no chemical interaction between the adsorbed silver and the organic substrate was found before contact with air. Nevertheless, silver nanoparticles were found in all three cases after contact with air. Thus, a process of silver nanoparticle formation during the decomposition of the organic molecules is suggested, similar to the previously found catalytic decomposition of cinnamyl alcohol by water in the presence of silver atoms.
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Copyright (c) 2021 Sebastian Dahle, Lienhard Wegewitz , Wolfgang Viöl, Wolfgang Maus-Friedrichs
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