Red Room Temperature Phosphorescence from Lignin

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.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Red Room Temperature Phosphorescence from Lignin ; day:07 ; month:01 ; year:2025 ; extent:8
Angewandte Chemie ; (07.01.2025) (gesamt 8)

Urheber
Guo, Hongda
Cheng, Huanjie
Liu, Ruixia
Chen, Xiaoxia
Wang, Luyao
Yang, Chenhui
Li, Shujun
Liu, Shouxin
Li, Jian
Pan, Qingjiang
James, Tony D.
Chen, Zhijun

DOI
10.1002/ange.202421112
URN
urn:nbn:de:101:1-2501081319589.324104937975
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
07.08.20252025, 09:31 MESZ

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Beteiligte

  • Guo, Hongda
  • Cheng, Huanjie
  • Liu, Ruixia
  • Chen, Xiaoxia
  • Wang, Luyao
  • Yang, Chenhui
  • Li, Shujun
  • Liu, Shouxin
  • Li, Jian
  • Pan, Qingjiang
  • James, Tony D.
  • Chen, Zhijun

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