Photocatalytic degradation of azure B under visible light irradiation by reduced graphene oxide–NiS composite
| Autor: | Ruchi Chaudhary, Suresh C Ameta, Rakshit Ameta |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Macedonian Journal of Chemistry and Chemical Engineering, Vol 38, Iss 1, Pp 107-114 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1857-5552 1857-5625 |
| DOI: | 10.20450/mjcce.2019.1622 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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