Synthesis and feasibility studies of doping U at Ti site of YTiO as a radioactive waste immobilization matrix.

In pursuit of clean and green nuclear energy one of the major challenges is to effectively immobilize the nuclear waste. In this context ABO type pyrochlore owing to its structural flexibility, ability to accommodate ions at both A/B-sites and high radiation tolerance has demonstrated excellent capability to store highly radioactive actinide ions. To fill the major gap area of actinide doping at the B site we have taken up the challenge of doping uranium ions at the Ti site of YTiO type pyrochlore.

γ-Resistant Microporous CAU-1 MOF for Selective Remediation of Thorium.

A simple solvothermal method was used to synthesize a metal-organic framework (MOF) with an Al metal entity, viz., CAU-1 NH. The synthesized MOF was characterized using different techniques like X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy (SEM), field emission SEM (FE-SEM), transmission electron microscopy, small-angle X-ray scattering, positron annihilation lifetime spectroscopy, and X-ray photoelectron spectroscopy.