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Research Article

Modulating hydrothermal condition to achieve carbon dots-zeolite composites with multicolor afterglow

Jiali Wen1, Zhifeng Zeng1, Bolun Wang2, Junyu Hong1, Yingyuan Chen1, Jianyu Zhang3, Jiyang Li2( ), Jiuxing Jiang1,4( )
MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China
Guangdong Provincial Key Laboratory of Optical Chemicals, XinHuaYue Group, Maoming 525000, China
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Abstract

Responsive luminescence materials with prolonged lifetime and multicolor emission have drawn great attention due to their attractive optical property and potential applications. Herein, two responsive carbon dots (CDs) based composites: CD1@MCM-22P and CD2@ZSM-12 were achieved by a one-step hydrothermal method. By adjusting the hydrothermal condition, CD1@MCM-22P owns temperature-dependent afterglow, while CD2@ZSM-12 is equipped with excitation-dependent room-temperature phosphorescence. The photoluminescence mechanisms of CD1@MCM-22P and CD2@ZSM-12 were investigated and proposed, and the composites were applied in multi-mode anti-counterfeiting. This work provides an insight as well as a feasible method for the development of multi-emissive CDs@zeolite composite.

Graphical Abstract

Two carbon dots (CDs) based zeolitic composites: CD1@MCM-22P and CD2@ZSM-12 were obtained through a one-step hydrothermal method. CD1@MCM-22P owns temperature-dependent room-temperature phosphorescence/thermally activated delayed fluorescence (RTP/TADF) convertible afterglow, while CD2@ZSM-12 is equipped with excitation-dependent RTP.

Keywords

carbon dotszeolitic matricesresponsive photoluminescenceroom-temperature phosphorescencethermally activated delayed fluorescence

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Nano Research
Volume 16 Issue 5,
May 2023
Pages 7761-7769
DOI: 10.1007/s12274-023-5410-y

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Cite this article:
Wen J, Zeng Z, Wang B, et al. Modulating hydrothermal condition to achieve carbon dots-zeolite composites with multicolor afterglow. Nano Research, 2023, 16(5): 7761-7769. https://doi.org/10.1007/s12274-023-5410-y
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Carbon quantum dots

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Received: 19 October 2022
Revised: 12 December 2022
Accepted: 15 December 2022
Published: 21 January 2023
© Tsinghua University Press 2023