Supercapacitor and Photocatalytic Applications of Hydrothermally Synthesized of Polydymite Nanoparticles

Abstract

The hydrothermal technique for producing polydymite nanoparticles (Ni3S4 NPs) for photocatalytic and supercapacitor utilization is the main emphasis in present work. The microstructural and electrochemical characterizations were conducted to determine the performance parameters of supercapacitor such as specific capacitance, efficiency, energy density and power density values using cyclic voltammetric (CV) and electrochemical impedance spectroscopic (EIS) techniques. The electrochemical characteristics of Ni3S4 NPs were studied using a TMS electrode in a 2 M KOH solution. This showed a specific capacitance value of 524 F g–1 at a current density of 1 A g–1. The Ni3S4 NPs showed good photocatalytic activities for the photodegradation of fast blue dye, the Ni3S4 NPs exhibits a 75.6% colour loss rate following the exposure for 120 min to UV radiation.