Published October 2024 | Version v1
Journal article Metadata-only

Co-immobilization of strontium and cesium in Sr-feldspar-pollucite composite phase ceramics derived from geopolymer by microwave sintering

Creators

  • 1. Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment, Hunan, Hengyang (China)
  • 2. University of South China, Hunan (China). School of Resource Environment and Safety Engineering
  • 3. University of South China, Hunan, Hengyang (China). College of Mechanical Engineering

Description

The ceramic products derived from cesium-strontium co-doped geopolymers ((Cs, Sr)-GP) have been synthesized by microwave sintering to realize the co-immobilization of Cs and Sr. Results show that (Cs, Sr)-GP with various Cs/Sr ratios (2-4) form Sr-feldspar-pollucite composite ceramic, the formation temperatures of monoclinic Sr-feldspar decrease from 1000 ℃ (for Sr-GP) to 800 ℃ (for (Cs, Sr)-GP) with Cs addition. The ceramic product heat treated from the (4Cs, Sr)-GP at 1000 ℃ has a high crystalline and optimal leaching resistance, is considered as an ideal host to immobilization the real fission products containing Cs and Sr. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
333
Journal Issue
10
Journal Page Range
p. 4983-4993
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
55095273
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
FELDSPARS; JOINTS; POLLUCITE; RADIOISOTOPES; SINTERING; SOLIDIFICATION; STRONTIUM
Descriptors DEC
ALKALINE EARTH METALS; ELEMENTS; FABRICATION; ISOTOPES; METALS; MINERALS; PHASE TRANSFORMATIONS; SILICATE MINERALS

Optional Information

Notes
40 refs.