Synthesis and characterization of visible-light-driven La-doped p-n BiOCl/ZnO heterojunction photocatalyst: mechanism investigation of 3-Cholorophenol degradation
| Autor: | Ali İmran Vaizoğullar |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Photoluminescence
Materials science 010405 organic chemistry Scanning electron microscope Doping General Chemistry 010402 general chemistry Photochemistry 01 natural sciences 0104 chemical sciences X-ray photoelectron spectroscopy Photocatalysis Diffuse reflection Powder diffraction Visible spectrum |
| Zdroj: | Research on Chemical Intermediates. 47:2701-2718 |
| ISSN: | 1568-5675 0922-6168 |
| DOI: | 10.1007/s11164-021-04438-2 |
| Popis: | Herein, ZnO, BiOCl, lantanium-doped ZnO, BiOCl and BiOCl/ZnO catalysts were prepared using facile precipitation. Samples were characterized by scanning electron microscopy (SEM–EDS), Brunauer–Emmet–Teller (BET), UV–vis diffuse reflectance (UV–vis DRS), photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD), and photoluminescence (PL) techniques. Lanthanum has apparently changed the peak of pure ZnO and BiOCl. The defect at the fermi level to investigate photocatalysis was supported by PL. Photocatalytic activity of the prepared catalysis was investigated using 3-cholorophenol (3-CP) under visible light irradiation. La-doped BiOCl/ZnO catalysis showed higher photocatalytic activity. Results were attributed to the inhibition of charges (electrons/holes). Photo-generated holes and superoxide ( $${\mathrm{h}}^{+}, {\mathrm{O}}_{2}^{\bullet-})$$ radicals were main active species during the radical scavenging activity of 3-CP. |
| Databáze: | OpenAIRE |
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