Preparation Of New Light-collecting Photochemical Microreactor By 3D Printing

Photochemical reaction is a very effective way to synthesize fine chemicals,but due to factors such as low reaction efficiency,it has not yet become the main synthetic method in organic synthesis.With the emergence of new concepts of photocatalysis and photophysics,photochemical synthesis has become a research field with much attention.As an important platform for photochemical reaction,the performance of photochemical reactor directly limits the efficiency of photochemical reaction.In recent years,with the introduction of continuous-flow microreaction technology,photochemical microreactors have become a research hotspot in academic and industrial research.In this thesis,we use 3D printing technology to prepare a new light-collecting photochemical microreactor,and propose the concept of light-collecting channel.The design of the light collection channel makes the microreactor not only suitable for photochemical reaction systems excited by different wavelengths,but also can easily replace and recover the dye,and realize the reuse of the microreactor.This idea successfully overcomes the problems of narrow applicability and non-reusability of general light-collecting photochemical microreactors,which effectively reduces costs and is environmentally friendly.The application of 3D printing technology also greatly simplifies the microreactor manufacturing process.Subsequently,we adopted an internal numbering strategy to increase the number of channels,and prepared a multi-channel photochemical microreactor to achieve the array of the microreactor and increase the throughput of microreactor.During the experiment,we optimized the structure of the light-collecting channel and the reaction channel of the microreactor through numerical simulation and experimental verification.Based on the optimized structure,the performance of the microreactor was verified by experimental results and data analysis.Finally,we proved that this light-collecting photochemical microreactor can effectively improve the utilization efficiency of light energy and promote the progress of photochemical reactions,which has great application prospects.