Synthesis of lanthanum fluoride nanocrystals and modification of their surface

Article abstract of DOI:10.1134/S1070363211020010

The LaF₃ nanoparticles were synthesized in the presence of citric acid and glycine. The products were characterized by X-ray phase analysis, transmission electron microscopy, dynamic light scattering, and infrared spectroscopy. In the presence of organic acids the synthesis was shown to result in a decrease in size of the formed particles. The IR spectroscopic studies revealed that citric acid and glycine acted as modifiers of the surface of LaF₃ particles forming a chemical bond with the surface ions La³⁺. A suggestion was advanced on the structure of the grafted surface layer. The features of the colloidal behavior of the systems were investigated.