Thulium Oxide Nanopowders Obtained by Precipitation

Abstract

The aim of this work was to investigate the influence of precipitation parameters on the morphology of obtained thulium oxide powders. Tm2O3 precursor powders were synthesized by precipitation method using 0.1–0.25M water solutions of thulium nitrate and 1.5M ammonium hydrogen carbonate water solution as a precipitation agent. The processes were conducted at different temperatures (25–50°C). The result showed that the morphology of the obtained thulium oxide (Tm2O3) powders depends both on the molar concentration of thulium nitrate and the temperature of precipitation. Small, round, loosely agglomerated Tm2O3 nanoparticles were obtained after air calcination of precursor precipitated at room temperature with the use of 0.1M thulium nitrate solution.

Paramagnetic ultrasmall Ho2O3 and Tm2O3 nanoparticles: characterization of r2 values and in vivo T2 MR images at a 3.0 T MR field

“…All peaks after TGA could be assigned with (hkl) Miller indices according to bodycentered cubic Ho 2 O 3 and Tm 2 O 3 . 53,54 The estimated lattice constants after TGA were 10.609 and 10.482 Å for Ho 2 O 3 and Tm 2 O 3 nanoparticles, respectively, which are in good agreement with the reported values of 10.6186 and 10.49 Å, 53,54 respectively.…”

Thulium Oxide Nanoparticles: A new candidate for image-guided radiotherapy

“…Thulium oxide is less frequently studied; however there are some noted applications of thulium oxide in x-ray devices, phosphors, atomic reactors, medicine, and semiconductors (Sidorowicz et al 2016). Thulium oxide nanoparticles in particular, can be also used in the fabrication of an electrochemical glucose biosensors (Zhang et al 2011).…”