TY - JOUR ID - TI - Synthesis ZnO Heterostructured Photocatalyst Simulated Solar Irradiation for Carbamazepine Elimination in Aqueous Solution AU - Khalid K. Abbas AU - Ahmed M.H. Abdulkadhim Al-Ghaban AU - Eman H. Rdewi PY - 2022 VL - 40 IS - 6 [Material Engineering] SP - 901 EP - 910 JO - Engineering and Technology Journal مجلة الهندسة والتكنولوجيا SN - 16816900 24120758 AB - In this study, zinc oxide nanoparticles (ZnO NPs) were produced to photodegrade harmful carbamazepine compounds (CBZ) in water under simulated solar light. The ZnO photocatalyst was prepared in aqueous media using the sol-gel technique with zinc chloride and NaOH as precursors. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Field Emission Scanning Electron Microscopy (FE-SEM), and ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) were used to characterize the ZnO NPs powder. According to the XRD result, ZnO nanoparticles showed a hexagonal symmetry shape with a 13 nm particle size value. The absorption bands of ZnO nanoparticles were identified using FT-IR spectra peaking. The ZnO nanoparticles produced in this work have a spherical shape, as seen in the FE-SEM picture, with a bandgap of about 3.6 eV, which was determined using the UV-Vis DRS data. The prepared Zinc Oxide heterostructured photocatalyst utilized excellent performance in reducing the Carbamazepine compound with an efficiency of 90%. This study took into account pH solution, catalyst loading, kinetic studies, TOC removal, regeneration, and reusability. The synthesized ZnO successfully removed the Carbamazepine medicine at pH=4. With an R-square of 0.99855, the produced photocatalyst fits well into the pseudo-second-order model. The ZnO heterostructured nano photocatalyst retained its outstanding performance after numerous usage cycles. For these observations, the Zinc Oxide heterostructured photocatalyst for Carbamazepine reduction is a promising photocatalyst

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