One-step solid-state synthesis of Mx-ZnBi2O4–Bi2O3 (Mx= Fe, Co, Ni, Eu, and Ho) nanocomposites and catalytic production of 3,4-dihydropyrimidin-2-(1H)-ones |
Amene Mirzazadeh1, Alireza Hakimyfard1, Nemat Tahmasebi1, Leila Kafi -Ahmadi2, Shahin Khademinia3 |
1Department of Physics, Faculty of Science , Jundi-Shapur University of Technology , Dezful , Iran 2Department of Inorganic Chemistry, Faculty of Chemistry , Urmia University , Urmia , Iran 3Department of Inorganic Chemistry, Faculty of Chemistry , Semnan University , Semnan , Iran |
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Received: January 18, 2023; Revised: April 15, 2023 Accepted: May 16, 2023. Published online: June 7, 2023. |
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ABSTRACT |
This paper presented the synthesis of Mx-ZnBi2O4–Bi2O3 (Mx= Fe, Co, Ni, Eu, and Ho) nanomaterials by a one-pot facile solid-state method at 650 ˚C for 10 h. Rietveld analysis data displayed the formation of ZnBi2O4–Bi2O3 composite in which ZnBi2O4 was crystallized as a main phase in orthorhombic crystal system with Pmmm space group. The investigation of optical properties indicated that doping the metal ions into the ZnBi2O4–Bi2O3 nanocomposite decreased the band-gap energy amount. Results indicated that the synthesized samples displayed paramagnetic behavior without any preferred magnetization direction. However, the data indicated that Co3+-doped ZnBi2O4 showed highest magnetization value. In addition, cyclic voltammetry (CV) data and low EIS values revealed a pseudocapacitor behavior of the synthesized samples. Biginelli reaction to synthesize heterocyclic DHPMs compounds was applied to evaluate the catalytic performance of the samples. Results indicated that the synthesis yields of DHPMs at optimum condition were 92% and 96% for undoped and Eu-doped ZnBi2O4–Bi2O3, respectively. |
Key words:
ZnBi2O4· Solid state · Nanocomposite · Electrochemical property · Biginelli |
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