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Designing Microflowreactors for Photocatalysis Using Sonochemistry: A Systematic Review Article

2019-09-12

Abstract

Use of sonication for designing and fabricating reactors, especially the deposition of catalysts inside a microreactor, is a modern approach. There are many reports that prove that a microreactor is a better setup compared with batch reactors for carrying out catalytic reactions. Microreactors have better energy efficiency, reaction rate, safety, a much finer degree of process control, better molecular diffusion, and heat-transfer properties compared with the conventional batch reactor. The use of microreactors for photocatalytic reactions is also being considered to be the appropriate reactor configuration because of its improved irradiation profile, better light penetration through the entire reactor depth, and higher spatial illumination homogeneity. Ultrasound has been used efficiently for the synthesis of materials, degradation of organic compounds, and fuel production, among other applications. The recent increase in energy demands, as well as the stringent environmental stress due to pollution, have resulted in the need to develop green chemistry-based processes to generate and remove contaminants in a more environmentally friendly and cost-effective manner. It is possible to carry out the synthesis and deposition of catalysts inside the reactor using the ultrasound-promoted method in the microfluidic system. In addition, the synergistic effect generated by photocatalysis and sonochemistry in a microreactor can be used for the production of different chemicals, which have high value in the pharmaceutical and chemical industries. The current review highlights the use of both photocatalysis and sonochemistry for developing microreactors and their applications.

Swaraj Rashmi Pradhan, Ramón Fernando Colmenares-Quintero, and Juan Carlos Colmenares Quintero. Molecules (201924, 3315; doi:10.3390/molecules24183315 Open Access!!!

HTML Version: https://​www​.mdpi​.com/1420 – 3049/​24/​18/​3315/​htm

PDF Version: https://​www​.mdpi​.com/1420 – 3049/​24/​18/​3315/​pdf

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