Continuous Solvothermal Synthesis of Metal-Organic Framework (Cu-BTC) Nanoparticles Using a Microstructured Mixer Equipped with Double-Tube, Swirl, and Contraction Flow Channels

Abstract

A microstructured mixer, equipped with double-tube, swirl, and contraction flow channels, is proposed for the stable and continuous solvothermal synthesis of metal-organic framework (MOF) particles. The synthesis of Cu-BTC nanoparticles from copper nitrate and benzene 1,3,5-tricarboxylic acid ethanol solutions was conducted across temperatures ranging from 283 to 523 K. This study investigated the effects of temperature, flow rate, and mixing sequence on product yield and particle diameter. Comparative analysis of the results helped in highlighting the advantages of this mixer in preventing preheating of the starting solution and subsequent clogging.

Keywords

• MOF
• Cu-BTC
• Nanoparticle
• Continuous production
• Micromixer
• Clogging prevention