Fig. 11From: Zingiber officinale rhizome extracts mediated ni nanoparticles and its promising biomedical and environmental applicationsCrystal violet dye might be degraded by a photocatalytic process. Nickel nanoparticles undergo oxidation and generate electrons and holes when exposed to UV light. Free electrons and holes could convert oxygen into free radicals. The crystal violet dye was oxidized by the reactive oxygen-free radical. Created with BioRender.comBack to article page