Microwave-assisted synthesis of Ce-doped ZnO/CNT composite with enhanced photo-catalytic activity
Source abstract
Abstract
Abstract This manuscript reports a successful additive free and fast energy-efficient microwave-assisted synthesis of nanocrystalline Ce-doped ZnO/CNT composite without calcinations. The structure and morphology of nanocrystalline Ce-doped ZnO/CNT was investigated by X-ray Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), Fourier Transform Infrared Spectroscopy (FT-IR), UV–visible and Photoluminescence (PL) spectroscopy. The XRD results indicate that all of the samples are free of any impurity phase and crystallize only in the hexagonal structure. The synthesized Ce-doped ZnO/CNT composite achieved 96.4% photo-catalytic efficiency for methylene blue (MB) dye degradation under UV irradiation whereas the efficiency was only 34.6% for pure ZnO nanoparticles. Ce doping and insertion of CNTs into ZnO matrix enhanced the photo-catalytic activity of the composite by reducing the charge recombination. The experimental photodegradation data were well fitted to first-order, parabolic diffusion and modified Freundlich models. The results suggest that Ce-doped ZnO/CNT composite prepared by microwave irradiation method has a potential application in photo-catalysis which leads to the removal of harmful organic pollutant from the environment.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · ZnO doping and properties · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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