Photocatalytic degradation of azure B under visible light irradiation by reduced graphene oxide–NiS composite

Authors

  • Ruchi Chaudhary Department of Chemistry, PAHER University, Udaipur
  • Suresh C Ameta Department of Chemistry, PAHER University, Udaipur
  • Rakshit Ameta Department of Chemistry, PAHER University, Udaipur - 313024 (Raj.)

DOI:

https://doi.org/10.20450/mjcce.2019.1622

Keywords:

reduced graphene oxide, nickel sulphide, azure B, photocatalytic degradation

Abstract

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.

Author Biographies

Ruchi Chaudhary, Department of Chemistry, PAHER University, Udaipur

Research Scholar, Department of Chemistry

Suresh C Ameta, Department of Chemistry, PAHER University, Udaipur

Dean, Faculty of Science

Rakshit Ameta, Department of Chemistry, PAHER University, Udaipur - 313024 (Raj.)

Associate Professor and Head, Department of Chemistry

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Published

2019-05-30

How to Cite

Chaudhary, R., Ameta, S. C., & Ameta, R. (2019). Photocatalytic degradation of azure B under visible light irradiation by reduced graphene oxide–NiS composite. Macedonian Journal of Chemistry and Chemical Engineering, 38(1), 107–114. https://doi.org/10.20450/mjcce.2019.1622

Issue

Vol. 38 No. 1 (2019)

Section

Photochemistry

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