Combustion synthesis, characterization, and photodegradation performance of La2-xBixCuO4
Document Type
Article
Publication Date
4-1-2023
Abstract
Quaternary metal oxide system of the type, La2-xBixCuO4, where x = 0, 0.01, 0.03, 0.06, 0.08 have been syn-thesized by the combustion method. The crystalline phases and purity of nanostructures were confirmed by X-ray diffraction, which showed that they crystallized in the orthorhombic system of Bamb space group. Furthermore, they tend to adopt the quadratic system upon the incorporation of Bi atom into the lattices of the compound. A vibrational study shows the disappearance of absorption band around 680 cm-1 due to crystallographic system transformation. Morphological characterization by scanning electron microscopy (SEM) indicated that the mi-crographs are composed of nanometric crystallite particles with porous microstructure. The photocatalytic property of these materials was evaluated by monitoring the degradation of Malachite green under sunlight and the disappearance of the band characteristic of malachite green around 620 nm occurred after 240 min. The efficiency of La2-xBixCuO4 is 64, 68, 75, 89, and 83% for the nanostructures for x = 0, 0.01, 0.03, 0.06, 0.08, respectively.
Keywords
Cuprate, Combustion synthesis, Photocatalysis, Malachite green
Divisions
nanotechnology
Funders
Tunisian Ministry of Higher Education and Scientific Research (LR16CNRSM02)
Publication Title
Solid State Communications
Volume
364
Publisher
Pergamon-Elsevier Science Ltd
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND