Abstract
Lignin is a significant byproduct from the pulp and paper industry. However, the conversion of lignin to a resource with added value is plagued by expensive processing. Here we report that the syringyl units (S) of sodium lignosulfonate (LS) exhibit phosphorescence in water with a lifetime of ∼2 ms and the lifetime can be prolonged up to ∼618 ms by encapsulation in Ca3(PO4)2 due to the formation of H-type dimers of the S units (LS@Ca3(PO4)2). Motivated by this, we develop afterglow paper through the in situ generation of LS@Ca3(PO4)2 in the paper matrix. The afterglow emission of the paper is sensitive to H2O2, enabling its application as a sensor for liquid/vapor H2O2. Moreover, the afterglow paper is shown to be suitable for use in anti-counterfeiting applications, enabling the development of a more sustainable pulp and paper industry.
Original language | English |
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Article number | 100867 |
Journal | Cell Reports Physical Science |
Volume | 3 |
Issue number | 5 |
Early online date | 22 Apr 2022 |
DOIs | |
Publication status | Published - 18 May 2022 |
Keywords
- afterglow paper
- lignin
- RTP
- syringyl units
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Materials Science(all)
- Chemistry(all)
- Energy(all)
- Engineering(all)