Red Room Temperature Phosphorescence from Lignin

Materials with red room-temperature phosphorescence (RTP) derived from sustainable resources are crucial but rarely reported. Here, we produced red RTP materials from lignin. Lignin was covalently modified with Upy (1-(6-isocyanatohexyl)-3-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl) urea) to obtain Lig-Upy. The Upy in the Lig-Upy promoted the interaction between the aromatic units of lignin and reduced energy gaps of these molecules. As a result, Lig-Upy exhibited red RTP centered at 625 nm with a lifetime of 24.2 ms. Moreover, the hydrogen bonding interactions in Lig-Upy varied when embedded into different matrices, such as polyvinyl alcohol (PVA) or sodium montmorillonite (MTM), inducing a change in RTP wavelength and lifetime. Utilizing these properties, Lig-Upy was used as building blocks for producing materials exhibiting time-dependent phosphorescent colors (TDPCs). Such TDPCs materials have exhibited great potential for visual decorations, information encryption and anti-counterfeiting logos for medicine bottles.

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Publication Details

Journal
Angewandte Chemie International Edition
Published
2024-12-24
DOI
https://doi.org/10.1002/anie.202421112
Citations
21
Primary Topic
Catalytic Cross-Coupling Reactions
Type
article
Field-Weighted Citation Impact
5.25

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article

Red Room Temperature Phosphorescence from Lignin

Hongda Guo, Shouxin Liu, Chenhui Yang, Tony D. James et al.
21 citations
Angewandte Chemie International Edition
Catalytic Cross-Coupling Reactions
5.25
article

Red Room Temperature Phosphorescence from Lignin

Hongda Guo, Shouxin Liu, Chenhui Yang, Tony D. James, Qing‐Jiang Pan, Ruixia Liu, Jian Li, Zhijun Chen, Shujun Li, Hairong Cheng, Xiaoxia Chen, Luyao Wang
article en
21 citations

Abstract

Materials with red room-temperature phosphorescence (RTP) derived from sustainable resources are crucial but rarely reported. Here, we produced red RTP materials from lignin. Lignin was covalently modified with Upy (1-(6-isocyanatohexyl)-3-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl) urea) to obtain Lig-Upy. The Upy in the Lig-Upy promoted the interaction between the aromatic units of lignin and reduced energy gaps of these molecules. As a result, Lig-Upy exhibited red RTP centered at 625 nm with a lifetime of 24.2 ms. Moreover, the hydrogen bonding interactions in Lig-Upy varied when embedded into different matrices, such as polyvinyl alcohol (PVA) or sodium montmorillonite (MTM), inducing a change in RTP wavelength and lifetime. Utilizing these properties, Lig-Upy was used as building blocks for producing materials exhibiting time-dependent phosphorescent colors (TDPCs). Such TDPCs materials have exhibited great potential for visual decorations, information encryption and anti-counterfeiting logos for medicine bottles.

Angewandte Chemie International EditionVol. 64(10)
Northeast Forestry University (CN), University of Bath (GB), Heilongjiang University (CN), Henan Normal University (CN)
Henan Normal University, National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities
Responsible consumption and production
Openalex Percentile: Top 3%
Catalytic Cross-Coupling Reactions
5.25
DOIOpen Access PDFOpenAlex
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