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ISSN electronic edition: 1336-9075
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Innovative high-performance supercapacitor and photocatalytic degradable metal sulphide thin film NiS2:Er2S3:Cr2S3

Mahwash Mahar Gul, Khuram Shahzad Ahmad, Andrew G. Thomas, and Ammar M. Tighezza

Materials and Environmental Chemistry Lab, Lab E-21, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan



Received: 10 January 2024  Accepted: 19 February 2024


This investigation is designed to synthesise and analyse thin film NiS2:Er2S3:Cr2S3 accomplished by the use of diethyldithiocarbamate ligand. Various characterisation techniques were done. Crystallite size via X-ray diffraction analysis was 38 nm; while, the band gap value was 2.6 electronvolts. Distinct geometrical structures were observed by the scanning electron microscope. Er 4d, S 2p, Ni 2p, and Cr 2p were the observed core peaks for the main elements in the composite as detected through X-ray photoelectron spectroscopy. Cyclic voltammetry was done to assess the electrochemical performance, which indicated a noteworthy performance as supercapacitor energy storage electrode with 576.5 Fg−1 specific capacitance. A good cycle stability of the thin film was also observed, positioning it as a highly promising option for various energy storage applications. A persuasive examination was done to investigate the photocatalytic capabilities, with the ability to successfully remove a several environmental pollutants. Pesticide fluopyram was degraded up to 96% with 0.0549 min−1 rate constant.

Keywords: Supercapacitor; Energy storage; Electrochemical; Cyclic voltammetry; Photocatalytic degradation

Full paper is available at

DOI: 10.1007/s11696-024-03375-9


Chemical Papers 78 (7) 4143–4155 (2024)

Thursday, June 13, 2024

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