Abstract
Recent years, metal oxide semiconductor photoelectrochemical (PEC) and photocatalytic technology is a compassionate of eco-friendly methods that has displayed significant consideration in the environmental and energy fields. Ni-doped ZrO2 has studied several studies but its PEC water splitting and organic pollutant dye degradation have not been exploited yet. Hence, in the present study, we prepared the Ni-doped ZrO2 (0.1, 0.3 and 0.5 mol %) photocatalyst using a simple hydrothermal technique and studied their PEC water splitting and methyl (MB) blue organic pollutant dye degradation under visible light irradiation. Compared with pure ZrO2 photocatalyst, the Ni-doped photocatalysts displayed extra-prolonged light response and greater separation rate of photo-generated charge carrier’s. The optimized doped (0.3 mol %) photocatalyst showed higher photocurrent (~89 times) density and lesser charge resistance over pure photocatalyst. Moreover, the optimized doped photocatalyst showed 90.2% degradation of methyl blue dye under 100 min of visible light irradiation.
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