Preparation of broad-spectrum UV blocking carbon dots for the application of sunscreen absorbent

doi:10.7503/cjcu20240313

Chem. J. Chinese Universities

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Preparation of broad-spectrum UV blocking carbon dots for the application of sunscreen absorbent

CHEN Qidan^1,2, CHEN Guanji^1,2, YOU Shanmei¹, ZANG Xinyao¹, YANG Bai^2,3

1. School of Life Sciences, College of Zhuhai Science and Technology, Zhuhai 519041, China;
2. Zhuhai Institute, Jilin University, Zhuhai 519041, China;
3. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China

Received:2024-06-28 Revised:2024-08-01 Online:2024-08-02 Published:2024-08-02
Contact: YANG Bai E-mail:byangchem@jlu.edu.cn
Supported by:
Supported by the Guangdong Special Foundation for the Major Program of Higher Education, China(No.2020ZDZX2036), the Zhuhai Basic and Applied Basic Research Foundation, China(No.ZH22017003200015PWC), and the Three Levels of Talent Project of Zhuhai College of Science and Technology.

Abstract

Abstract: Sunscreen absorbent is the basic ultraviolet (UV) blocking additives that absorb UV rays, which is the active ingredient in sunscreen products. However, traditional sunscreen absorbents are known as organic and inorganic chemicals which have problems such as unknown toxicity for human health and environment, instability, poor water solubility, and a narrow range of UV absorption, the study of eco-friendly broad-spectrum sunscreen absorbent materials is important for the application of sunscreen products. In recent years, carbon dots have shown good properties in the application of UV absorbents due to their chemistry stability, eco-friendly, excellent UV absorption efficiency. In the study, two kinds of carbon dots were prepared from dopamine hydrochloride and o-phenylenediamine, citric acid and urea independently by simple one-pot hydrothermal synthesis method, purified by column chromatography and then characterized by XPS, TEM, XRD, FTIR, UV-Vis, and fluorescence spectra. The results showed that carbon dots as a broad-spectrum UV absorbent material was developed with excellent absorption efficiency in both UVA and UVB of the optimized ratio of the prepared carbon dots by 1 :1.5 (w :w). In addition, the application of the UV blocking photoprotection calligraphy ink by a certain proportion of carbon dots components as UV absorbent was investigated, and the UV blocking photoprotection stability was tested in a certain period (120 h), which indicating that the application of the broad-spectrum carbon dots UV absorbent is high-efficiency, stable, and carbon dots has potential as ideal photostable broad-spectrum UV absorbent additives use for sunscreen products.

Key words: Carbon dots, broad-spectrum UV protection, sunscreen absorber

CLC Number:

O657.3

TrendMD:

CHEN Qidan, CHEN Guanji, YOU Shanmei, ZANG Xinyao, YANG Bai. Preparation of broad-spectrum UV blocking carbon dots for the application of sunscreen absorbent[J]. Chem. J. Chinese Universities, doi: 10.7503/cjcu20240313.

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Preparation of broad-spectrum UV blocking carbon dots for the application of sunscreen absorbent

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