Perovskite LaFeO3/montmorillonite nanocomposites (LaFeO3/MMT) have been successfully prepared via assembling LaFeO3 nanoparticles on the surface of montmorillonite with citric acid assisted sol-gel method. The results indicated that the uniform LaFeO3 nanoparticles were densely deposited onto the surface of montmorillonite, mainly ranging in diameter from 10 nm to 15 nm. The photocatalytic acti...

Using reduced graphene oxide (rGO) as a template and high temperature sol-gel chemistry, we have prepared LaFeO3 nanoparticles (NPs). The 15 nm LaFeO3 NPs have a bandgap of 1.86 eV and the LaFeO3-rGO can function as an efficient catalyst for degradation of methylene blue (MB) or Rhodamine B (RhB) under visible-light irradiation with the electron transfer from the dye to hole dominating the oxid...

Oxidation of bisphenol-A (BPA) was investigated using a sonophoto Fenton-like hybrid process under visible light irradiation in the presence of iron-containing perovskite LaFeO3 catalysts. For this purpose, firstly the perovskite catalyst (LaFeO3) was prepared by the sol-gel method and calcined at different temperatures (500, 700, and 800 ◦C). The prepared catalysts were characterized using XRD...

Multiferroic materials have attracted great interests but are rare in nature. In many transitional metal oxides, charge ordering and magnetic ordering coexist, so that a method of engineering charge-ordered materials into ferroelectric materials would lead to a large class of multiferroic materials. We propose a strategy for designing new ferroelectric or even multiferroic materials by insertin...

Micro- and nanocrystalline lanthanum-samarium ferrites La1-x Sm x FeO3 with orthorhombic perovskite structure were obtained by using both solid state reactions (x = 0.2, 0.4, 0.6 and 0.8) and sol-gel synthesis (x = 0.5) techniques. Obtained structural parameters of both series of La1-x Sm x FeO3 are in excellent agreement with the "pure" LaFeO3 and SmFeO3 compounds, thus proving formation of co...

Photocatalytic hydrogen (H2) production by water splitting provides an alternative to fossil fuels using clean and renewable energy, which gives important requirements about the efficiency of photocatalysts, co-catalysts, sacrificial agents. To achieve higher H2 efficiencies from splitting, study uses different metals such as yttrium (Y), praseodymium (Pr), magnesium (Mg), Indium (In), calcium ...

In this work, the optimization of Ni amount on LaFeO3 photocatalyst was studied in photocatalytic molecular hydrogen production from glucose aqueous solution under UV light irradiation. synthesized via combustion synthesis and different were dispersed surface through deposition method using NaBH4 as reducing agent. The prepared samples characterized with techniques: Raman spectroscopy, UltraVio...

The C spheres synthesized by a hydrothermal method were used as source, which was doped with LaFeO3 to obtain C-LaFeO3 composites different contents (5%, 10%, 15%, and 20%). effects of content on the structure, morphology, photoelectric properties investigated experimentally. results show that doping does not change crystal structure LaFeO3. proper amount improves photocatalytic electrochemical...

The widespread applications of electromagnetic (EM) waves in wireless communication and detection may lead to severe EM wave pollution, which drives the urgent need for absorbents. However, satisfactory impedance matching remains a challenge wide bandwidth absorption one-dimensional core-shell absorbers. To cope with this challenge, study, novel LaOCl/LaFeO3 nanofiber (NF) is designed successfu...

Spin-phonon coupling effects, as reflected in phonon frequency shifts between ferromagnetic (FM) and G-type antiferromagnetic (AFM) configurations in cubic CaMnO3, SrMnO3, BaMnO3, LaCrO3, LaFeO3 and La2(CrFe)O6, are investigated using density-functional methods [1]. We find that the phonon frequency shifts ∆ω = ωAFM − ωFM strongly depend on the U value when using the DFT+U method. We propose a ...