Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization
As one of the three major components of woody biomass, lignin is a kind of natural organic polymer and the only abundant natural renewable resource with aromatic nucleus. Chemical catalysis induced depolymerization is an important and effective approach for lignin utilization. In particular, photoca...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-04-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025722000383 |
| _version_ | 1797867414344433664 |
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| author | Kejia Wu Minglong Cao Qiang Zeng Xuehui Li |
| author_facet | Kejia Wu Minglong Cao Qiang Zeng Xuehui Li |
| author_sort | Kejia Wu |
| collection | DOAJ |
| description | As one of the three major components of woody biomass, lignin is a kind of natural organic polymer and the only abundant natural renewable resource with aromatic nucleus. Chemical catalysis induced depolymerization is an important and effective approach for lignin utilization. In particular, photocatalysis and electrocatalysis show great potential in accurately activating C–O/C–C bonds, which is a critical point of selective cleavage of lignin. In this contribution, we focus on radical and (photo)electron transfer induced reaction mechanisms of the photo(electro)catalytic depolymerization of lignin. Primarily, the general situation of Carbon-centered radicals and active oxygen species mediated lignin conversion has been discussed. Then the mechanisms for (photo)electron transfer mediated lignin depolymerization have been summarized. At the end of this review, the challenges and opportunities of photo(electro)catalysis in the applications of lignin valorization have been forecasted. |
| first_indexed | 2024-04-09T23:39:49Z |
| format | Article |
| id | doaj.art-cbcbad625df8437396da6d63cd66e252 |
| institution | Directory Open Access Journal |
| issn | 2468-0257 |
| language | English |
| last_indexed | 2024-04-09T23:39:49Z |
| publishDate | 2023-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj.art-cbcbad625df8437396da6d63cd66e2522023-03-19T04:38:15ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572023-04-0182383405Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerizationKejia Wu0Minglong Cao1Qiang Zeng2Xuehui Li3School of Chemistry and Chemical Engineering, State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, 510640, ChinaSchool of Chemistry and Chemical Engineering, State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, 510640, ChinaCorresponding authors.; School of Chemistry and Chemical Engineering, State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, 510640, ChinaCorresponding authors.; School of Chemistry and Chemical Engineering, State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, 510640, ChinaAs one of the three major components of woody biomass, lignin is a kind of natural organic polymer and the only abundant natural renewable resource with aromatic nucleus. Chemical catalysis induced depolymerization is an important and effective approach for lignin utilization. In particular, photocatalysis and electrocatalysis show great potential in accurately activating C–O/C–C bonds, which is a critical point of selective cleavage of lignin. In this contribution, we focus on radical and (photo)electron transfer induced reaction mechanisms of the photo(electro)catalytic depolymerization of lignin. Primarily, the general situation of Carbon-centered radicals and active oxygen species mediated lignin conversion has been discussed. Then the mechanisms for (photo)electron transfer mediated lignin depolymerization have been summarized. At the end of this review, the challenges and opportunities of photo(electro)catalysis in the applications of lignin valorization have been forecasted.http://www.sciencedirect.com/science/article/pii/S2468025722000383LigninPhotocatalysisElectrocatalysisDepolymerizationReaction mechanism |
| spellingShingle | Kejia Wu Minglong Cao Qiang Zeng Xuehui Li Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization Green Energy & Environment Lignin Photocatalysis Electrocatalysis Depolymerization Reaction mechanism |
| title | Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization |
| title_full | Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization |
| title_fullStr | Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization |
| title_full_unstemmed | Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization |
| title_short | Radical and (photo)electron transfer induced mechanisms for lignin photo- and electro-catalytic depolymerization |
| title_sort | radical and photo electron transfer induced mechanisms for lignin photo and electro catalytic depolymerization |
| topic | Lignin Photocatalysis Electrocatalysis Depolymerization Reaction mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2468025722000383 |
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