Abstract

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.

Keywords

coniferyl alcohol;lignin;metastable induced electron spectroscopy;nanoparticle;silver;sinapyl alcohol;ultraviolet photoelectron spectroscopy;X-Ray photoelectron spectroscopy;atomic force microscopy;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL BF - Biotechnical Faculty
UDC: 665.947.4:543.428.4
COBISS: 67289347 Link will open in a new window
ISSN: 0024-1067
Views: 758
Downloads: 160
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Other data

Secondary language: Slovenian
Secondary title: Tvorba srebrovih nanodelcev na ligninu in njegovih dveh prekurzorjih
Secondary abstract: Za preučevanje interakcije srebra z ligninom ter z njegovima naravnima prekurzorjema koniferil alkoholom in sinapil alkoholom smo uporabili metastabilno elektronsko spektroskopijo, ultravijolično fotoelektronsko spektroskopijo (He I in He II), rentgensko fotoelektronsko spektroskopijo in mikroskopijo na atomsko silo. V vseh treh primerih nismo ugotovili kemijske interakcije med adsorbiranim srebrom in organskim substratom. Kljub temu pa smo v vseh treh primerih po stiku z zrakom detektirali nanodelce srebra. Na podlagi teh opažanj smo predlagali proces tvorbe srebrovih nanodelcev med razgradnjo organskih snovi, ki je podoben predhodno ugotovljenemu katalitskemu razkroju cinamil alkohola z vodo v prisotnosti atomov srebra.
Secondary keywords: les;koniferil alkohol;lignin;metastabilna elektronska spektroskopija;nanodelci;srebro;sinapil alkohol;ultravijolična fotoelektronska spektroskopija;rentgenska fotoelektronska spektroskopija;mikroskopija na atomsko silo;
Type (COBISS): Article
Pages: str. 59-72
Volume: ǂLetn. ǂ70
Issue: ǂšt. ǂ1
Chronology: 2021
DOI: 10.26614/les-wood.2021.v70n01a03
ID: 13059383