期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 32, 期 17, 页码 22481-22492出版社
SPRINGER
DOI: 10.1007/s10854-021-06734-4
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- Research Deanship of the University of Ha'il-Saudi Arabia [RG-20 073]
The synthesis of La0.8Nd0.1Sr0.1MnO3 perovskite using the citrate gel method was studied, revealing a rhombohedral structure and sponge-like morphology. The band gap energy and optical properties were investigated using Density-Functional Theory (DFT) calculations, with a high photoabsorption property observed. The photocatalytic activity of La0.8Nd0.1Sr0.1MnO3 was evaluated, showing high degradation efficiency under UV irradiation conditions.
La0.8Nd0.1Sr0.1MnO3 perovskite was synthesized using the citrate gel method. The crystal structure was studied by X-ray diffraction. The Rietveld refinement reveals a single R-3C rhombohedral structure. The morphological properties were investigated by a scanning electron microscopy, connected to an energy-dispersive X-ray detector for mapping and elements composition, showing a sponge-like structure behavior of agglomerated particles. The band gap energy and the optical properties were studied theoretically by Density-Functional Theory (DFT) calculations. It showed that La0.8Nd0.1Sr0.1MnO3 exhibited a high photoabsorption property with band gap energy of approximate to 2.5 eV. The methyl orange (MO) degradation properties were studied by measuring time-dependent UV-Visible absorption of the dye solution. The photocatalytic activity was evaluated at different times under visible light and ambient temperature conditions for La0.8Nd0.1Sr0.1MnO3 solution. A high degradation rate of 80% in 120 min under UV irradiation conditions was observed. It indicated that La0.8Nd0.1Sr0.1MnO3 presents high photocatalytic efficiency and could be a good candidate for MO degradation.
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