Photo-electrochemical ability of iron oxide nanoflowers fabricated via electrochemical anodization

• Published in: Chemical physics letters Vol. 741; p. 137088
• Main Authors: Mir, Jaffar Farooq, Rubab, S, Shah, MA
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 16.02.2020
• Subjects: Anodization; Iron oxide nanoflowers; Photo electrode; Photocurrent density; Photoelectrochemical; Photo electrode; Photocurrent density; Anodization; Photoelectrochemical; Iron oxide nanoflowers
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2020.137088

[Display omitted] •Synthesis of Iron oxide nanoflowers at room temperature via electrochemical anodization technique.•Effect of NH4F and H2O Concentration in electrolyte on the morphology was discussed.•Possible mechanism on the basis of current-time behaviour has been discussed.•Structural, morphological and absorption properties has been studied.•Iron oxide nanoflowers as a potential candidate for photo electrode material. We report flower-like morphology of iron oxide with nanosheets underneath it, on employing anodization technique at room temperature. FESEM was employed to verify the morphology. X-ray diffraction and Raman spectroscopy showed that all the fabricated nanostructures consist of magnetite and hematite phase. Moreover, the resulting Iron oxide nanoflowers were studied for light absorption using diffuse reflectance spectroscopy, showed the band gap of ~2.09 eV. Photocurrent density of as-fabricated iron oxide nanoflowers were studied using electrochemical analyser and was found to be ~0.35 mA cm−2 which reveals their potential to be used as sunlight-driven photoelectrode material.