Photochemical microfluidic synthesis of vitamin D<sub>3</sub> by improved light sources with photoluminescent substrates

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

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

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Photochemical microfluidic synthesis of vitamin D₃ by improved light sources with photoluminescent substrates
- Chinese Journal of Chemical Engineering Vol. 29, Issue 1, Pages: 204-211(2021)
- Affiliations：
  
  The State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology,Beijing,China,100029
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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by improved light sources with photoluminescent substrates[J]. 中国化学工程学报, 2021, 29(1): 204-211.
DOI：

by improved light sources with photoluminescent substrates[J]. 中国化学工程学报, 2021, 29(1): 204-211. DOI：

摘要

Abstract

This study presents a novel technique for the controllable preparation of photoluminescent substrates to enhance the photochemical microfluidic synthesis of vitamin D

. 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.

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

DOI：

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