Atrazine reclamation from an aqueous environment using a ruthenium-based metal-organic framework

The current research describes the synthesis, characterization, and application of a newly developed metal organic framework grounded on ruthenium (Ru-MOF) for the elimination of hazardous chemicals atrazine (AZ) from water. The zeta potential, N₂ adsorption/desorption, SEM, TEM, XPS, and FTIR Spectroscopy were used to analyze the Ru-MOF. Ru-MOF has a high surface area of 1058.62 m².g⁻¹ and micropores with a pore volume of 0.74 cm³.g⁻¹ were produced by the characterization analyses. Additionally, it was discovered that atrazine adsorption produced good results at pH 4 and an adsorbent mass of 0.8 g per liter of solution. The greatest successful fit with the equilibrium facts was provided by the Langmuir model isothermally and Pseudo-Second-Order kinetically at 298 K, with a maximum adsorption capacity of 382.7 mg.g⁻¹. A spontaneous endothermic process was validated using the thermodynamic characteristics. The results of kinetic investigations, which were fitted to a pseudo-second-order model, displayed that equilibrium was got after 90 min. In terms of adsorption kinetics, the experimental results can be represented by the linear driving force model. Additionally, the projected adsorption data of the model agree with the results of the experiment. Box Behnken design study may also show the ideal circumstances for greater atrazine elimination by Ru-MOF. Hydrophobic, π–π interactions and pore filling processes that take place at the surfaces may be used to govern the adsorption mechanisms. When the adsorption capacity was compared to the literature review, it was determined that the Ru-MOF had the best adsorption capacity out of all the preceding adsorbents. Check the adsorbent's regeneration as it demonstrated good efficiency for five cycles, which was deemed a significant cost-saving benefit.