Abstract
A series of La-doped ZnO (La/ZnO) nanofibers were prepared by electrospinning-calcination technology and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), ultraviolet–visible (UV–Vis) absorption spectroscopy and specific surface area analysis. The effect of numerous operational parameters involving calcination temperature, La doping amount, La-doped ZnO concentration and initial Rhodamine B (Rh B) concentration on photocatalytic efficiency of the composite has been analyzed by using Rh B for degradation under the illumination of visible light. Under optimum conditions, ZnO doped with 1.5 at.% La achieved 94.31% Rh B degradation after 510 min of visible light illumination. The kinetic data of La/ZnO catalyst for Rh B photodegradation fitted the Langmuir-Hinshelwood first-order (LHFO) kinetic model well.
| Original language | English |
|---|---|
| Article number | 100004 |
| Journal | Advanced Powder Materials |
| Volume | 1 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 2022 |
Keywords
- Electrospinning
- La-doped ZnO nanofibers
- Photocatalytic decomposition
- Photodegradation kinetics
- Rhodamine B
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