In ‘Fluorescent Fluid in 3D‐Printed Microreactors for the Acceleration of Photocatalytic Reactions,’ Chinese researchers from Dalian University of Technology are finding new ways to create photocatalytic reactions, but realize improvements must be made in creating tools for applications such as harnessing light and other energy. 3D printing can play a part in so many different fields because it allows individuals to create tools, components, or devices they may need to complete experiments and ultimately, processes.
Here, authors Lijing Zhang, Zhigang Zhu, Bofan Liu, Chong Li, Yongxian Yu, Shengyang Tao, and Tingju Li are further exploring methods to regulate light wavelengths as well as creating better standardization in microreactors—using 3D printing techniques to make a microreactor that can hold fluorescent fluid to harness and then convert light.
As is so often the case in science, the researchers work from the basic concept of how light affects organisms in nature, providing them with the impetus to grow through photosynthesis. The authors point out that humans have been working to harness light since they figured out it was a possibility with the use of photoreactors, and accompanying technology. With microreactors, they can make the process of harnessing light more efficient, creating a shorter ‘light path.’
To create the desired photochemical reactions, the authors realize that light with the correct type of wavelength is required—and not easy to come by.
“Some light sources with particular wavelength are costly or hard to obtain, which severely restricts the progress of many photochemical reactions,” state the researchers.
Luminophores can be a good alternative, however. These fluorescent dyes or quantum dots allow for less expensive ways to harness light, although the emission profile must match ‘to the maximum absorption of the photocatalyst or photosensitizer used in target photochemical reaction.’ Distribution of the ‘light-converting media’ must be controllable in the 3D space, and it should also offer flexibility in matching reactions to maximize use. For this project, the authors created a general‐used fluorescent fluid photochemical microreactor (FFPM) with both a fluorescent light channel and a reaction channel. The authors point out that these two channels are critical to the FFPM—with its most outstanding feature being that it can translate wavelengths as needed for the reaction.
“With the aid of computer‐aided design, 3D printing can conveniently fabricate the FFPMs with light channels and reaction channels of different structures. After the microreactor was fabricated, fluids containing fluorescent dyes were injected into the light channel to perform the functions of light harvest and wavelength conversion, resulted in a complete FFPM.”
Harnessing not just light, but also the benefits of 3D printing, the authors were able to enjoy self-sustainability in creating microreactors, along with speed in production and affordability; in fact, 3D printing one photoreactor costs under $5.
“For most commonly used solvents, such as water, toluene, isopropanol, ethanol, and acetonitrile, the photosensitive resin can work continuously for about 4 days. Thus, our FFPM can be applied to various photochemical reactions in different solvents,” stated the researchers.
“This strategy will find extensive application in photochemical mechanism study and valuable chemical compounds production for its operational convenience and flexibility, such as pharmaceuticals, pesticides, and fine chemicals.”
3D printing is commonly connected with a wide range of endeavors targeting energy, allowing not only for the creation of innovative devices but also a variety of different containers and microreactors. Scientists, researchers, and chemists have used 3D printing to manage highly reactive reagents, miniaturization and microfluidics, continuous flow reactors, and more.
Find out more about how 3D printing is assisting in work with photocatalytic reactions here. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com.[Source / Images: Fluorescent Fluid in 3D‐Printed Microreactors for the Acceleration of Photocatalytic Reactions]
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