Synthesis and structural characterization of a novel Zn(II) metal organic complex (Zn-MOC) and elimination of highly consumed antibiotic; tetracycline from aqueous solution by their nanostructures photocatalyst under visible light

Nanostructures of [Zn(meso-[5,10,15,20-tetrakis(4-cyanophenyl)porphyrin))(H2O)]center dot 3DMF (Zn-MOC) were synthesized using two various strategy: Laying and sonochemical. Products were characterized by scanning electron microscopy (SEM), powder X-ray diffraction (PXRD), and FT-IR spectroscopy. Single-crystal X-ray analyses (SCXA) on Zn-MOC show that Zn atoms are 5-coordinated. Intermolecular interactions of Zn-MOC were surveyed by Hirschfeld Surface Analyses (HSA). The role of various factors including power of ultrasonic, reaction time, concentration of reactants, and temperature were studied on Zn-MOC. Nanostructures were fabricated and their photocatalyst behavior as the photodegradation one of the most commonly used antibiotics such as tetracycline (TC) in the aqueous solution were investigated. Response Surface Methodology (RSM), was used to optimize the parameters affecting the photodegradation. The maximum degradation efficiency (95.5%) was observed under the optimal conditions ([TC](0) = 5.0 mgL(-1), Catalyst dose = 1.0 gL(-1), pH = 7.3 and irradiation time = 50 min). Intermediate species were identified using LC-MS technique and the possible mechanism of photodegradation was evaluated based on this analysis. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

The nanostructures of [Zn(meso-[5,10,15,20-tetrakis(4-cyanophenyl)porphyrin))(H2O)]center dot 3DMF (Zn-MOC) were synthesized using two different strategies and characterized using various analytical techniques. The photocatalytic behavior of the nanostructures in degrading tetracycline antibiotics in aqueous solution was investigated, with optimal conditions identified for maximum degradation efficiency. LC-MS technique was used to identify intermediate species and evaluate the mechanism of photodegradation.