Photocatalytic degradation of azure B under visible light irradiation by reduced graphene oxide–NiS composite
A composite of reduced graphene oxide (RGO) and nickel sulfide (NiS) was prepared via mechanochemical method and further characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and energy dispersive analysis of X-rays (EDAX). NiS was prepared via precipitation method...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Society of Chemists and Technologists of Macedonia
2019-05-01
|
| Series: | Macedonian Journal of Chemistry and Chemical Engineering |
| Subjects: | |
| Online Access: | https://mjcce.org.mk/index.php/MJCCE/article/view/1622 |
| Summary: | A composite of reduced graphene oxide (RGO) and nickel sulfide (NiS) was prepared via mechanochemical method and further characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and energy dispersive analysis of X-rays (EDAX). NiS was prepared via precipitation method, and RGO was prepared via reduction of graphene oxide. The photocatalytic performances of as prepared RGO/NiS composite, RGO and NiS were evaluated using azure B model system. The composite exhibited good photocatalytic activity as compared to NiS as well as RGO. The optimum conditions obtained for the photocatalytic degradation of azure B were the following: pH = 8.0, [Azure B] = 2.0 × 10–5 M, amount of composite = 0.10 g, and light intensity = 50.0 mW·cm–2. The rate of degradation of azure B with the composite was found to be 1.79 × 10–4s–1. |
|---|---|
| ISSN: | 1857-5552 1857-5625 |