electron microscopy

ECOLOGICAL RISKS OF CHROMIUM CONTAMINATION IN UKRAINIAN SOILS AFFECTED BY MILITARY ACTIVITY: SEM-EDS AND EPMA ANALYSIS

The contamination of soil with heavy metals as a result of military activity presents a significant and multifaceted environmental challenge. Chromium, in particular, is introduced into the environment through various military-related processes, such as the use of ammunition, explosives, fuels, and other military equipment. Once released, chromium can persist in the environment, especially in soil, where it exists primarily in two oxidation states: trivalent chromium (Cr(III)) and hexavalent chromium (Cr(VI)).

Structural Properties of Polythiophene Doped with FeCl3

Polythiophene is chemically synthesized and doped with FeCl3 for 2.5, 5 and 10 h. For structural investigation all samples have been characterized using different techniques. The results of elemental analysis show that with the increase of doping duration the Fe content increases while the S content decreases. FTIR spectrum reveals the complex formation between FeCl3 and polythiophene. UV-Visible results have been used to calculate band gap energy.