Catalytic Transformation of Nitroarenes to Amines over BaSrTiO (0 < x < 1) Perovskites in Water.

This work is focused on the application of lanthanide-free perovskite BaSrTiO (0 < x < 1) in valorization of toxic pollutants as 4-nitrophenol (4-NPh). The series of perovskites were fabricated by facile, one-step solid-state preparation method and characterized via various techniques: elemental analysis (Inductively Coupled Plasma Optical Emission Spectrometry, ICP-OES), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and dielectric properties (impedance spectroscopy, IS). The methods confirmed the assumed composition, structure and high purity of the materials.

Evaluation of Rhodamine B Photocatalytic Degradation over BaTiO-MnO Ceramic Materials.

Ferroelectric ceramics (BaTiO_MnO) with different Mn admixtures were prepared using solid-state synthesis. Elemental analysis, powder X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, and impedance spectroscopy confirmed that the BaTiO and MnO coexisted in the ceramics. In addition, the high purity and homogeneity of the element distributions in the ceramic samples were confirmed.

Mg Doping Effects on the Structural and Dielectric Properties of CaCuTiO Ceramics Obtained by Mechanochemical Synthesis.

In this study, ceramic CaCuTiO (CCTO) and CaCuMgTiO solid solutions in which 0.1 ≤ x ≤ 0.5 were prepared by the mechanochemical method, realized by a high-energy ball milling technique.

Immittance Studies of BiFeTiO Ceramics.

Results of studies focusing on the electric behavior of BiFeTiO (BFTO) ceramics are reported. BFTO ceramics were fabricated by solid state reaction methods. The simple oxides BiO, TiO, and FeO were used as starting materials.