Adsorptive removal of crystal violet from aqueous solution by ultrasonic-assisted synthesized zirconium-2,6-naphthalenedicarboxylate metal-organic framework

Zirconium-2,6-naphthalenedicarboxylate metal-organic framework (Zr-NDC MOF) was prepared using ultrasound-assisted synthesis and tested for the adsorptive removal of crystal violet (CV) dye from aqueous solution. The pristine Zr-NDC characterized powder X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, energy-dispersive spectroscopy, Fourier-transform infrared, elemental dynamic light scattering techniques. maximum percentage CV found to be 99.45% with an initial concentration 10 mg L-1. kinetics adsorption isotherm models were used investigate solution Zr-NDC. Langmuir model (R2 = 0.9880) describes onto equilibrium capacity (454.2 g-1) achieved having 100 follow pseudo-second-order 0.9960) a rate constant 6.52 × 10-4 g mg-1 min-1. effect various parameters such as concentration, contact time, pH solution, MOF dose on investigated. study proved that is promising adsorbent in