Volume 136, Issue 25 47555
Article

Synthesis of carbon quantum dots to fabricate ultraviolet-shielding poly(vinylidene fluoride) films

Li Dong

Li Dong

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

University of Science and Technology of China, Hefei 230026, China

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Zhengrong Xiong

Zhengrong Xiong

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

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Xiangdong Liu

Xiangdong Liu

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

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Dekun Sheng

Corresponding Author

Dekun Sheng

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Correspondence to: D. Sheng ([email protected]) and Y. Yang ([email protected])Search for more papers by this author
Yan Zhou

Yan Zhou

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

University of Science and Technology of China, Hefei 230026, China

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Yuming Yang

Corresponding Author

Yuming Yang

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

University of Science and Technology of China, Hefei 230026, China

Correspondence to: D. Sheng ([email protected]) and Y. Yang ([email protected])Search for more papers by this author
First published: 12 March 2019
Citations: 33

ABSTRACT

The paper presents a simple and effective approach to fabricating a poly(vinylidene fluoride) (PVDF) film with excellent ultraviolet (UV) shielding performance. Carbon quantum dots (CQDs) with a highly UV absorbing property were made via a hydrothermal reaction and were then added to a poly(vinyl alcohol) (PVA) solution. The PVDF membrane pretreated with an alkaline solution was immersed in the prepared CQD/PVA solution to coat a UV-shielding layer on the film surface. Fourier transform infrared spectroscopy, X-ray photoelectron spectrometry, X-ray diffraction, transmission electron microscopy, and UV–visible spectrophotometry were applied to study the structure, morphology, and optical performance of the CQD particles. The stability and UV-shielding performance of the obtained PVDF-OH@CQDs/PVA composite film were further investigated. The results showed that the CQD particles with diameter of 18 nm could be well dispersed in solution. Additionally, the CQDs had fairly high UV absorbance, and the PVDF-OH@CQDs/PVA composite film could shield the UV light completely. The method described in this paper is a promising one for fabricating UV-shielding composite films. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47555.

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