Degradation of Lignin by Infrared Free Electron Laser.

ABSTRACT: Lignin monomers have attracted attention as functional materials for various industrial uses. However, it is challenging to obtain these monomers by degrading polymerized lignin due to the rigid ether linkage between the aromatic rings. Here, we propose a novel approach based on molecular vibrational excitation using infrared free electron laser (IR-FEL) for the degradation of lignin. The IR-FEL is an accelerator-based pico-second pulse laser, and commercially available powdered lignin was irradiated by the IR-FEL under atmospheric conditions. Synchrotron-radiation infrared microspectroscopy analysis showed that the absorption intensities at 1050 cm^-1, 1140 cm^-1, and 3400 cm^-1 were largely decreased alongside decolorization. Electrospray ionization mass chr

SUBMITTER: Kawasaki T 

PROVIDER: S-EPMC9227113 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature