The visible light-active nanocomposite with the photocatalytic capability was facile one-pot solvothermal method successfully synthesized. X-ray diffraction (XRD), Thermogravimetry and Derivative Thermogravimetry (TG-DTG), Scanning Electron Microscopy with Energy Dispersive X-ray Analysis (SEM-EDX), Diffuse Reflectance Spectroscopy (UV-Vis DRS), and Fourier Transform Infra-Red (FT-IR) analysis were employed to characterize the synthetized BaTiZrO3, MIL-100(Fe), and the MIL-100(Fe)/BaTiZrO samples. As a result of the Scherrer equations, the size of grains for MIL-100(Fe), BaTiZrO, and MIL-100(Fe)/BaTiZrO was estimated to be 40.81, 12.00, and 22.70 nm, respectively. MIL-100(Fe), BaTiZrO, and MIL-100(Fe)/BaTiZrO samples showed bandgap values of 1.77, 3.02, and 2.56 determined from their absorption edge wavelengths. In the photodegraded solutions, chemical oxygen demand (COD) data and tetracycline (TC) absorbencies were used to obtain the rate constants of 0.032 min and 0.030 min, respectively. This corresponds to t-values of 27.7 min and 21.7 min, respectively, for the degradation and mineralization of TC molecules during photodegradation process.
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