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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Abdel-Mageed, Ali M.
Leibniz Institute for Catalysis
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2022Structural, optical and photocatalytic properties of <scp>Sr</scp>‐doped and <scp>Ca</scp>‐doped <scp>BiFeO<sub>3</sub></scp> compounds prepared by <scp>Pechini</scp> methodcitations
- 2019Synthesis, structural and morphological characterizations of nano-Ru-based perovskites/RGO composites
- 2019Synthesis, structural and morphological characterizations of nano-Ru-based perovskites/RGO compositescitations
- 2016Operando investigations of particle size and support effects during the selective CO methanation over oxide supported Ru nanoparticles in idealized and realistic H2 feed gases
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article
Structural, optical and photocatalytic properties of <scp>Sr</scp>‐doped and <scp>Ca</scp>‐doped <scp>BiFeO<sub>3</sub></scp> compounds prepared by <scp>Pechini</scp> method
Abstract
<jats:title>Abstract</jats:title><jats:sec><jats:title>BACKGROUND</jats:title><jats:p>BiFeO<jats:sub>3</jats:sub> is an important new visible‐light photocatalyst for the removal of organic pollutants, the efficacy of which is related to its narrow band gap energy (2.2 eV) and excellent chemical stability. In this work, the effects of Sr and Ca doping on the structural and photocatalytic properties of BiFeO<jats:sub>3</jats:sub> were investigated.</jats:p></jats:sec><jats:sec><jats:title>RESULTS</jats:title><jats:p>X‐ray diffraction results revealed the formation of a rhombohedral structure (<jats:italic>R3c</jats:italic>), as well as the successful incorporation of Sr<jats:sup>2+</jats:sup> and Ca<jats:sup>2+</jats:sup> ions into the BFO structure. The nanometric size of the specimens was in the range 23–55 nm. The percentage of structural phases in the obtained compounds was calculated by Rietveld analysis. Scanning electron microscopy results showed changes in the morphology and grain sizes. The band gap values of the ceramics display a gradual reduction when the dopant concentration is increased. The surface analysis by X‐ray photoelectron spectroscopy revealed, for all compounds, the characteristic peaks of Fe and Bi, as well as Sr and Ca in the doped samples.</jats:p></jats:sec><jats:sec><jats:title>CONCLUSION</jats:title><jats:p>The photocatalytic activity of the prepared photocatalyst was evaluated by the removal of methylene blue and 4‐chlorophenol. The doped samples showed higher photocatalytic activity compared to the undoped BiFeO<jats:sub>3</jats:sub> sample, attributed to the enhanced visible light absorption, the synergistic effects of the BiFeO<jats:sub>3</jats:sub> and Bi<jats:sub>2</jats:sub>Fe<jats:sub>4</jats:sub>O<jats:sub>9</jats:sub> phases, as well as the successful separation of photogenerated electrons and holes induced by Sr and Ca doping. © 2022 Society of Chemical Industry (SCI).</jats:p></jats:sec>