Photochemical evolution of hydrogen peroxide on lignins

Eva Miglbauer , Maciej Gryszel , Eric Głowacki

Abstract

Means of sustainable on-demand hydrogen peroxide production are sought after for numerous industrial, agricultural, and environmental applications. Herein we present the capacity of lignin and lignin sulfonate to behave as photocatalysts that upon irradiation reduce oxygen to hydrogen peroxide. Water-soluble lignin sulfonate acts as a homogeneous photocatalyst in solution, while lignin in thin-film form behaves as a heterogenous photocatalyst. In both cases, the photochemical cycle is closed via the oxidation of electron donors in solution, a process which competes with the autooxidation of lignin. Therefore, lignins can be destructively photooxidized to produce hydrogen peroxide as well as photochemically oxidizing low-oxidation potential species. These findings enable new photochemistry applications with abundant biopolymers and inform the growing body of knowledge on photochemical evolution of hydrogen peroxide.
Author Eva Miglbauer - Uniwersytet Linköping
Eva Miglbauer,,
-
, Maciej Gryszel (FC / DOC)
Maciej Gryszel,,
- Department Of Organic Chemistry
, Eric Głowacki (FC / CPCT)
Eric Głowacki,,
- Chair Of Polymer Chemistry And Technology
Journal seriesGreen Chemistry, ISSN 1463-9262, e-ISSN 1463-9270
Issue year2020
Vol22
No3
Pages673-677
Publication size in sheets0.5
ASJC Classification2304 Environmental Chemistry; 2310 Pollution
DOIDOI:10.1039/C9GC04324A
URL https://pubs.rsc.org/en/content/articlelanding/2020/gc/c9gc04324a#!divAbstract
Languageen angielski
File
c9gc04324a.pdf 946.76 KB
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 05-08-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.815; WoS Impact Factor: 2018 = 9.405 (2) - 2018=9.593 (5)
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