基于时间分辨光波谱技术的维生素 C
与 9,10-蒽醌光诱导反应机制研究

doi:10.3969/j.issn.1007-5461.2025.03.001

量子电子学报 ›› 2025, Vol. 42 ›› Issue (3): 295-303.doi: 10.3969/j.issn.1007-5461.2025.03.001

• 光谱 • 下一篇

基于时间分辨光波谱技术的维生素 C 与 9,10-蒽醌光诱导反应机制研究

魏亚雄,扶婷婷,刘毅,许新胜

1 安徽师范大学物理与电子信息学院, 安徽芜湖 241002; 2 光电信息材料功能调控与应用安徽省重点实验室, 安徽芜湖 241002

收稿日期:2023-12-22 修回日期:2024-01-09 出版日期:2025-05-28 发布日期:2025-05-28
通讯作者: E-mail: Davidl@mail.ustc.edu.cn; xxsheng@mail.ahnu.edu.cn E-mail:E-mail: Davidl@mail.ustc.edu.cn; xxsheng@mail.ahnu.edu.cn
作者简介:魏亚雄 ( 1989 - ), 河北石家庄人, 博士, 讲师, 硕士生导师, 主要从事时间分辨光波谱技术开发、光敏损伤反应动力学和光子上转换等方面的研究。E-mail: Davidl@mail.ustc.edu.cn
基金资助:
国家自然科学基金项目 (22203004, 21927814), 芜湖市应用基础研究项目 (2022jc13)

Mechanism of vitamin C and 9,10⁃anthraquinone photoinduced reaction based on time⁃resolved photoluminescence spectroscopy technology

WEI Yaxiong 1,2*, FU Tingting 1,2 , LIU Yi 1,2 , XU Xinsheng1,2*

1 School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China; 2 Anhui Key Laboratory for Control and Applications of Optoelectronic Information Materials, Wuhu 241002, China

Received:2023-12-22 Revised:2024-01-09 Published:2025-05-28 Online:2025-05-28

摘要/Abstract

摘要： 利用时间分辨电子顺磁共振波谱和瞬态吸收光谱技术, 在基于壬烷基酚聚氧乙烯醚、丁二酸二 (−2-乙基) 已酯磺酸钠、十二烷基硫酸钠 (SDS) 和十六烷基三甲基溴化铵 (CTAB) 等不同类型活性剂制备的乙二醇-水胶束溶液中, 研究了抗氧化剂维生素C (VC) 与处于激发三重态的9,10-蒽醌 (AQ) 之间的光诱导反应。光波谱研究结果表明, 在均相和胶束溶液中VC与 AQ的反应机理均为氢原子转移。通过对比不同胶束溶液中AQ与VC之间的双分子反应速率, 发现胶束表面电荷层的电荷类型对反应速率具有决定性影响, SDS胶束的阴离子外壳会通过静电排斥VC阴离子导致反应速率降低, 而CTAB胶束的阳离子外壳会通过静电吸引VC阴离子从而大大加快反应速率。

关键词: 光谱学, 光诱导氢原子转移, 时间分辨电子顺磁共振, 胶束效应, 维生素C, 蒽醌

Abstract: The photoinduced reactions between antioxidant vitamin C (VC) and 9,10-anthraquinone (AQ) in excited triplet state were studied using time-resolved electron paramagnetic resonance spectroscopy and transient absorption spectroscopy techniques in different ethylene glycol-water micelle solutions prepared with different kinds of surfactants, such as nonylphenol polyoxyethylene ether, sodium di (−2-ethylhexyl) succinate sulfonate, sodium dodecyl sulfate (SDS), and cetyltrimethylammonium bromide (CTAB). The results indicate that the reaction mechanism between VC and AQ in homogeneous and micelle solutions is essentially hydrogen atom transfer. By comparing the bimolecular reaction rates between AQ and VC in different micelle solutions, it is found that the charge type of the surface charge layer of the micelles has a decisive impact on the reaction rate. Specifically, the anionic shell of SDS micelles will reduce the reaction rate by electrostatic repulsion of VC anions, while the cationic shell of CTAB micelles will greatly accelerate the reaction rate by electrostatic attraction of VC anions.

Key words: spectroscopy, photoinduced hydrogen atom transfer, time-resolved electron paramagnetic resonance, micelle effect, vitamin C, anthraquinone

中图分类号:

魏亚雄, 扶婷婷, 刘毅, 许新胜, . 基于时间分辨光波谱技术的维生素 C 与 9,10-蒽醌光诱导反应机制研究[J]. 量子电子学报, 2025, 42(3): 295-303.

WEI Yaxiong , FU Tingting , , LIU Yi , , XU Xinsheng, . Mechanism of vitamin C and 9,10⁃anthraquinone photoinduced reaction based on time⁃resolved photoluminescence spectroscopy technology[J]. Chinese Journal of Quantum Electronics, 2025, 42(3): 295-303.

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基于时间分辨光波谱技术的维生素 C 与 9,10-蒽醌光诱导反应机制研究

Mechanism of vitamin C and 9,10⁃anthraquinone photoinduced reaction based on time⁃resolved photoluminescence spectroscopy technology

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