High stability and recyclable cellulose-based fluorescent paper derived from waste bagasse for anti-counterfeiting

Abstract

Developing uorescent paper-based materials with recyclable, environmental friendly, excellent stable and uniform performances are still an urgent challenge at present. Herein, a simple, green, and high-e ciency method for the fabrication of high stability and recyclable cellulose-based uorescent paper from waste bagasse via Hantzsch reaction is proposed. Compared to the pristine paper, the surface modi cation showed little effect on the morphology, mechanical properties, thermal performance and appearance. Meanwhile, the good writing and printing ability of the paper still remained. The prepared paper showed excellent uorescence performance, which is very stable even treated with acidic, alkaline, and different solvents for 24 h. It can be processed into different security patterns. What's more, this strategy could be extended by using other compositions with aldehyde groups. Considering their functional and recyclable features, as well as the convenient and e cient fabrication process, our uorescent papers hold great potential to be applied in many elds such as anti-counterfeiting.