BiFeO3 perovskite as an efficient photocatalyst synthesised by soft chemical route. (24th August 2021)

• Record Type: Journal Article
• Authors: Verma, Manish Kumar; Kumar, Atendra; Das, Tapas; Kumar, Vinod; Singh, Shruti; Rai, Vishnu Shankar; Prajapati, Dinesh; Sonwani, Ravi Kumar; Sahoo, Kedar; Mandal, K.D.
• Is Part Of: Materials technology. Volume 36:Number 10(2021)
• Page Start: 594
• Page End: 602
• Publication Date: 2021-08-24
• Subjects: Soft chemical route -- cyclic voltammetry -- microstructural study -- XPS; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2020.1782061
• Languages: English
• ISSNs: 1066-7857

Abstract

ABSTRACT: Bismuth ferrite nanostructure, BiFeO3, (BFO) belonging to perovskite family, was synthesised by a chemical route sintering temperature at 800°C for 6 h. The crystalline phase of the materials was investigated by X-ray diffraction (XRD). The morphology and particle size of the BFO samples were determined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis, respectively. The SEM images displayed the bimodal structure with the average grain size was found to be 0.6–3.7 µm. TEM observation confirmed the nanocrystalline nature of the particle having the size in the range of 50 ± 20 nm. We have been studied the charge storage capability and impedance of the BFO using cyclic voltammetry and electrochemical impedance spectroscopy, respectively. The prepared material demonstrates pseudocapacitive nature with a charge transfer resistance of 33 Ω. The synthesised material showed that the optical band gap value (Eg ) of BiFeO3 varies between 2.2 eV.