Synthesis, Characterization, Magnetic Properties, and Applications of La0.85Ce0.15FeO3 Perovskite in Heavy Metal Pb2+ Removal

被引：14
作者：
Arman, M. M. [1 ]
机构：
[1] Cairo Univ, Mat Sci Lab 1, Fac Sci, Dept Phys, Giza, Egypt
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2022年 / 35卷 / 05期
关键词：
Perovskites; La0; 85Ce0; 15FeO3; Nanoparticles; The removal efficiency; LAFEO3; MERCURY; CU(II); NANOPARTICLES; ADSORPTION; PB(II); WATER; IONS;
D O I：
10.1007/s10948-022-06168-x
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Perovskite La0.85Ce0.15FeO3 was synthesized with crystallite size 23 nm by flash combustion technique. The obtained sample was characterized by various techniques like X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and Brunauer-Emmett-Teller (BET) surface area. The morphology of the sample illustrated the porous nature of the sample due to the preparation technique and the valence exchange between Ce3+ and Ce4+ which produces oxygen vacancies. The magnetic coupling between 3d and 4f orbitals is the origin of the antiferromagnetic behavior of the sample. La0.85Ce0.15FeO3 is a good adsorbent for heavy metal lead ions (Pb2+) from the wastewater. The effects of pH value and the contact time on the removal efficiency were studied. The maximum removal efficiency of Pb2+ is 99% by nano perovskite Ce-doped LaFeO3. The maximum removal efficiency of Pb2+ is 42% at contact time 6 h. The Langmuir and Freundlich isotherms were used to understand the adsorption mechanism. Langmuir isotherm confirmed a monolayer adsorption of heavy metal Pb2+ onto La0.85Ce0.15FeO3 nano perovskite.
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收藏
页码：1241 / 1249
页数：9
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