| Abstrakt: |
The rapidly expanding industrial sector frequently generates hazardous waste for the environment. Semiconductor materials can be employed to remove contaminants in the photocatalyst process. In this paper, sulfur-doped ZnO (at 1%–5% S) has been prepared using matoa leaf extract as a biostabilizer. The synthesized sample was characterized using XRD, FESEM, EDX, UV–vis, and spectroscopy to study its crystallinity, morphology, elemental composition, absorption, and functional group. XRD analysis confirmed a wurtzite hexagonal-shaped crystal with a high purity of ZnO without other phases. Dopant S does not significantly affect the size of the crystal. Nanoflakes of ZnO have changed to nanospheres as dopant S increases. The S dopants reveal broadening absorption peaks with narrow bandgap energy from 2.82–3.08 eV. Sulfur-doped ZnO successfully degrades 4-nitrophenol by 98.79% after illumination under UV light for 120 min. Therefore, S-doped ZnO green synthesis has a great opportunity to be applied to degrade pollutants found in the aquatic environment. |
