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- Title
Microwave sintering for rapid treatment of simulated Nd<sup>3+</sup> and Sr<sup>2+</sup> radioactive contaminated soil: exploring the influence of Nd:Sr mass ratio and mechanism.
- Authors
Mao, Xueli; Xu, Hechao; Liao, Xin; Bu, Fankang; Tang, Jinrong; Yi, Facheng
- Abstract
This study achieves the successful immobilization of simulated alpha- and beta-emitting radionuclides (Nd3+ and Sr2+, respectively) by incorporating them into a glass matrix through Nd2O3/SrSO4 (Nd/Sr). Varying mixture concentrations (5–30 wt% with mass ratios Nd:Sr varied from 10:1 to 1:10) in simulated radioactive soils were subjected to microwave sintering at 1500 °C for 0.5 h. Comprehensive assessments, including X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, scanning electron microscopy (SEM), and energy dispersive X-ray spectrometry (EDS), confirm the vitrification process's efficacy. The vitrified sample exhibits an amorphous structure, smooth surface, and homogeneously distributed elements, highlighting microwave sintering as a promising method for the effective disposal of radioactive-contaminated soil.
- Subjects
MICROWAVE sintering; SOIL pollution; SCANNING electron microscopy; X-ray diffraction; FOURIER transforms
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2024, Vol 333, Issue 5, p2389
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-024-09443-4