Photochemical microfluidic synthesis of vitamin D3 by improved light sources with photoluminescent substrates

doi:10.1016/j.cjche.2020.07.016

中国化学工程学报 ›› 2021, Vol. 29 ›› Issue (1): 204-211.DOI: 10.1016/j.cjche.2020.07.016

• Catalysis, Kinetics and Reaction Engineering • 上一篇下一篇

Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates

Wenhao Niu, Yuanzhi Zheng, Ying Li, Le Du, Wei Liu

The State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China

收稿日期:2020-03-15 修回日期:2020-07-02 出版日期:2021-01-28 发布日期:2021-04-02
通讯作者: Le Du, Wei Liu
基金资助:
We gratefully acknowledge the support of the National Natural Science Foundation of China (21978008, 21606008), the State Key Laboratory of Chemical Engineering (SKL-ChE-17A02), the Fundamental Research Funds for the Central Universities (JD2017).

Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates

Wenhao Niu, Yuanzhi Zheng, Ying Li, Le Du, Wei Liu

The State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China

Received:2020-03-15 Revised:2020-07-02 Online:2021-01-28 Published:2021-04-02
Contact: Le Du, Wei Liu
Supported by:
We gratefully acknowledge the support of the National Natural Science Foundation of China (21978008, 21606008), the State Key Laboratory of Chemical Engineering (SKL-ChE-17A02), the Fundamental Research Funds for the Central Universities (JD2017).

摘要/Abstract

摘要： This study presents a novel technique for the controllable preparation of photoluminescent substrates to enhance the photochemical microfluidic synthesis of vitamin D₃. The dip-coating method to prepare the substrates was experimentally optimized, and the corresponding emission behaviors were systematically investigated. The substrates were successfully used to enhance the ultraviolet B (UVB) emission of a low-power light source (e.g., an 8 W lamp), whose UVB emission intensity was increased by approximately 11 times. By virtue of the novel light source, the productivity of a single set of photochemical microreactor with a 12-meter-long channel (0.6 mm i.d.) was increased to 1.83 kg·a^-1, which was 42% higher than that of a 100 W lamp, and no cooling devices were used. The method is simple and has great potential to replace traditional medium-pressure mercury lamps for UVB-irradiated photochemical reactions.

关键词: Microfluidics, Photochemistry, Composites, UVB emission, Vitamin D₃

Abstract: This study presents a novel technique for the controllable preparation of photoluminescent substrates to enhance the photochemical microfluidic synthesis of vitamin D₃. The dip-coating method to prepare the substrates was experimentally optimized, and the corresponding emission behaviors were systematically investigated. The substrates were successfully used to enhance the ultraviolet B (UVB) emission of a low-power light source (e.g., an 8 W lamp), whose UVB emission intensity was increased by approximately 11 times. By virtue of the novel light source, the productivity of a single set of photochemical microreactor with a 12-meter-long channel (0.6 mm i.d.) was increased to 1.83 kg·a^-1, which was 42% higher than that of a 100 W lamp, and no cooling devices were used. The method is simple and has great potential to replace traditional medium-pressure mercury lamps for UVB-irradiated photochemical reactions.

Key words: Microfluidics, Photochemistry, Composites, UVB emission, Vitamin D₃

Wenhao Niu, Yuanzhi Zheng, Ying Li, Le Du, Wei Liu. Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates[J]. 中国化学工程学报, 2021, 29(1): 204-211.

Wenhao Niu, Yuanzhi Zheng, Ying Li, Le Du, Wei Liu. Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 204-211.

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Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates

Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates

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