Mechanochemically Synthesized Solid Solutions La1-xCexFeO3+x/2 for Activation of Peroxydisulfate in Catalytical Reaction for Tetracycline Degradation

被引:2
|
作者
Tsvetkov, Martin [1 ]
Encheva, Elzhana [1 ,2 ]
Petrova, Stefani [1 ]
Spassova, Ivanka [3 ]
Milanova, Maria [1 ]
机构
[1] Univ Sofia, Fac Chem & Pharm, Dept Inorgan Chem, Sofia 1164, Bulgaria
[2] Bulgarian Acad Sci, Inst Phys Chem, Sofia 1113, Bulgaria
[3] Inst Gen & Inorgan Chem, Acad G Bonchev, Sofia 1113, Bulgaria
关键词
mechanochemical synthesis; lanthanum orthoferrite; Ce(IV) modification; persulfate activation; tetracycline chloride decomposition; MAGNETIC-PROPERTIES; OPTICAL-PROPERTIES; LAFEO3; OXIDATION; PEROXYMONOSULFATE; PHOTOCATALYSIS; NANOPARTICLES; COMBUSTION; PERSULFATE; CATALYSTS;
D O I
10.3390/cryst13050769
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The synthesis of orthoferrites of the type La1-xCexFeO3+x/2, x = 0.00, 0.01, 0.03, 0.05, and 0.07, by applying a simple and effective mechanochemical transformation from the constituent oxides is presented. Physicochemical methods such as powder X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-Vis spectroscopy, and Brunauer-Emmett-Teller (BET) adsorption were applied to gain information about the effect of Ce4+ content on the structural, textural, and optical properties of the samples. The catalytic activity of the samples for water decontamination was determined in a photo-Fenton-like activation of persulfate for removal of tetracycline hydrochloride as model pollutant. The presence of persulfate, PDS, considerably increased the removal efficiency under visible light illumination.
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页数:16
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