CaFeO3-? perovskite nanomaterial has been synthesized by sol-gel method. Rietveld analysis of the X-Ray diffraction (XRD) data sample revealed orthorhombic structure (space group pcmn). Field emission scanning electron microscope (FE-SEM) showed agglomerations various particles. Mössbauer measurement that value ? is 0.262 and Fe oxidation states are Fe3+ in octahedral Fe4+ tetrahedral coordinat...

This work presents the development of a quinoxaline and rhodamine conjugate system that acts as colorimetric chemosensor for hydrogen sulfate (HSO4?) ions in methanol media. sensor has been characterized both theoretically experimentally. The detection limits HSO4? are small 0.71 µM 3.8 absorption emission experiments, respectively. effectiveness probe recognizing gel solid phase is evaluated w...

Geometrical frustration of the Fe ions in LuFe2O4 leads to intricate charge and magnetic order and a strong magnetoelectric coupling. Using resonant x-ray diffraction at the Fe K edge, the anomalous scattering factors of both Fe sites are deduced from the (h/3 k/3 l/2) reflections. The chemical shift between the two types of Fe ions equals 4.0(1) eV corresponding to full charge separation into ...

Inorganic ions, coenzymes, amino acids, and saccharides could co-exist with toxic environmental chemicals, such as polycyclic aromatic hydrocarbons (PAHs), in the cell. The presence of these co-existing chemicals can modulate the toxicity of the PAHs. One of the genotoxic effects by PAHs is light-induced cleavage, or photocleavage, of DNA. The effect of inorganic ions I-, Na+, Ca2+, Mg2+, Fe3+,...