Chelating agent assisted BiFeO3 nanostructured material for visible light induced photocatalytic degradation of methylene blue dye

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS Journal of Sol-Gel Science and Technology Pub Date : 2024-12-10 DOI:10.1007/s10971-024-06644-x

Nilesh N. Mharsale, Swarada G. More, Manoj A. More, Sarika D. Shinde, Ganesh E. Patil, Sanjay R. Gadakh

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Abstract

Bismuth Ferrite (BiFeO₃) nanostructured materials were synthesized by sol-gel method using Ethylenediaminetetraacetic acid (EDTA) and glycine (GL) as chelating agents at different synthesis conditions. The synthesized BiFeO₃ (BFO) material was characterized by using Scanning electron microscopy (SEM), X-ray powder diffractometry (XRD), UV visible spectroscopy and Fourier infrared spectroscopy technique (FTIR) for investigating the structural and optical properties. The presence of chelating agents (EDTA and GL) influences the crystallite size, morphology and degradation efficiency of BFO. Analysis by scanning electron microscopy revealed morphological changes of BFO from nanoparticles to multilayered nanosheet-like structures after changing the chelating agent. The XRD pattern indicated the triclinic crystal system of BFO with the co-existence of mixed phases. The average crystallite size measured using Scherrer’s formula for BFO (EDTA) and BFO (GL) was found to be 43 nm and 35 nm respectively. The UV-visible analysis showed that the band gap energy for BFO (EDTA) was 1.86 eV and for BFO (GL) was 2.0 eV. The structural, morphological and optical properties as well as photocatalytic activity were found to be affected by the change in chelating agents. The photocatalytic properties of prepared samples were evaluated by the degradation of methylene blue dye under visible light irradiation. The degradation efficiencies of BFO (EDTA) were found to be 71.42% and 76.66% for catalyst masses of 0.05 g and 0.1 g respectively, whereas BFO (GL) exhibited lower degradation efficiencies of 48.05% and 62.33% for the same masses respectively. These results demonstrate that EDTA significantly enhances the photocatalytic activity of BFO, likely due to improved electron transfer and increased surface reactivity, which means the use of EDTA as a chelating agent for the sol-gel synthesis of BFO makes it a more efficient photocatalyst.

Graphical abstract

Synthesis, characterization, and photocatalytic results of BiFeO₃.

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.