Sonochemical Synthesis of Zr-based metal-organic cages and their adsorption performance towards Tartrazine

Fast ultrasound-assisted processes were utilized for the first time, to achieve the successful synthesis of two highly crystalline Zr-based metal-organic cages, namely ZrT-1 and ZrT-1-OH. Varying temperature and power level, the desired product was obtained after 5-8 minutes as crystalline particles with cubic shape (ca.2-8 μm). Furthermore, ultrasound-assisted synthesized ZrT-1 and ZrT-1-OH demonstrated exceptional performance for tartrazine adsorption. Under optimal conditions, their maximum adsorption capacities were determined to be 238.6 mg/g and 225.3 mg/g, respectively.