Preparation of Carbon Dots from Cellulose Using Ionic Liquid under Mild Condition 


Vol. 21,  No. 8, pp. 1643-1648, Aug.  2020
10.1007/s12221-020-9934-4


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  Abstract

This research focused on the preparation of carbon dots (CDs) using cellulose hydrolysis in ionic liquid (IL) at a low temperature of 65 oC without additional treatments. The morphologies of the CDs were observed by TEM. The chemical structures and the optical properties were characterized by XPS, FT-IR, UV-vis and PL spectroscopies. As the cellulose was incubated longer in the IL, the size of the CDs was reduced. Besides, the core of the CD was simultaneously nitrogen-doped more with graphitic N, resulting in the increase of the quantum yield up to ~33 %. For the easier application of the CD in solid state, the CD embedded cellulose film was simply prepared via the one-pot dissolution. The prepared cellulose film showed excellent photoluminescence behaviors as well as the superior transparency of over 97 % in the visible light region.

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  Cite this article

[IEEE Style]

J. Woo, H. Kim, Y. Song, "Preparation of Carbon Dots from Cellulose Using Ionic Liquid under Mild Condition," Fibers and Polymers, vol. 21, no. 8, pp. 1643-1648, 2020. DOI: 10.1007/s12221-020-9934-4.

[ACM Style]

Jeongyeon Woo, Hyungsup Kim, and Younghan Song. 2020. Preparation of Carbon Dots from Cellulose Using Ionic Liquid under Mild Condition. Fibers and Polymers, 21, 8, (2020), 1643-1648. DOI: 10.1007/s12221-020-9934-4.

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