Enhanced Photocatalytic Activity Using Near Visible Light of ZnO Nanorods by Doping with Mn2+ Ions
نویسندگان
چکیده
ZnO is a promising photocatalyst for photocatalytic oxidation of organic compounds under the influence sunlight that provides clean energy and decomposes sustainable pollutants substances. found to have non-toxic properties, long-term stability, high carrier mobility, low cost biocompatibility. However, some disadvantages limit its use in photocatalysis. Due wide bandgap, can only be activated UV illumination. On other hand, photo-excited electron-hole pairs recombine quickly on surface, suppress properties. To improve properties performance, doping with transition metals was used optical ZnO. Among metal ions, Manganese (Mn) commonly tune optical, electrical, diameter, height, number nanorods (NRs) per unit area. Introduction Mn into could enhance activity due increase defect sites effectively decreased recombination free electrons holes. This study successfully synthesized nanorod arrays generated glass substrates different concentrations (0, 0.5, 1, 1.5 2%) at 100 °C by simple hydrothermal method. investigate structure, morphology ultraviolet-visible spectroscopy (UV-Vis), X-ray diffraction (XRD) scanning electron microscopy (SEM) were conducted. With range ≤ 2% mol, band gap reduced slightly, most optimized concentration 0.5%. Overall, this work shows effective way ZnO’s visible region reducing reduction size material or denaturation certain non-metals.
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ژورنال
عنوان ژورنال: VNU Journal of Science: Mathematics - Physics
سال: 2021
ISSN: ['2588-1124', '2615-9341']
DOI: https://doi.org/10.25073/2588-1124/vnumap.4626