Lignin oxidation by MnO 2 under the irradiation of blue light

Jinhuo Dai, Antonio F. Patti, Gavin N. Styles, Sepa Nanayakkara, Leone Spiccia, Francesco Arena, Cristina Italiano, Kei Saito

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Abstract

Traditionally, conventional heat has been required for a large proportion of the oxidation and degradation process to utilise lignin from biomass. A photocatalysis system which is considered as a novel and green strategy for chemical reactions has been applied and a photo-MnO 2 catalytic lignin oxidation method has been developed. In this study, we investigated a promising photocatalytic heterogeneous system for lignin oxidation. Recyclable MnO 2 which is readily available and blue light which is a hazardless light are used in this system. 1-Phenylethanol was used as a model compound to study the suitable conditions for this system. After optimizing the reaction conditions, organosolv lignin, kraft lignin, and alkali lignin were applied to this system and the successful oxidation of lignins and their further degradation were shown.

Original languageEnglish
Pages (from-to)2005-2014
Number of pages10
JournalGreen Chemistry
Volume21
Issue number8
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • Pyrolysis
  • catalytic fast
  • Biofuels

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