In this investigation, nanostructured holmium oxide was fabricated through a new and simple way employing trisodium citrate as capping agent. The efficacy of some synthesis parameters was examined to reach optimum condition. Outcomes of this research illustrate that morphology and dimension of the holmium oxide could be substantially influenced via these parameters. The as-produced holmium oxide nanostructure was characterized by FT-IR, FESEM, EDS and XRD. According to the obtained outcomes, it was found that with the aid of this new approach can be synthesized homogeneous nanostructured holmium oxide. The photocatalyst yield of as-fabricated holmium oxide was also examined by elimination of the organic pollutant under visible light irradiation.
