Published January 2022 | Version v1
Journal article Metadata-only

Effect of high-dose γ-ray irradiation on the structural stability and U(VI) adsorption ability of bentonite

Creators

  • 1. Chengdu University of Technology, Chengdu, Sichuan (China). Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province
  • 2. Nuclear Power Institute of China, Chengdu, Sichuan (China)
  • 3. China Nuclear Power Engineering Co., Ltd., Shenzhen (China)

Description

Bentonite was irradiated with 60Co γ-rays at a dose rate of 10 kGy/h to achieve irradiation doses of 1, 2, 3 MGy and was characterized to evaluate its stability before and after irradiation and understand the radiation damage mechanism. The structure of the bentonite was slightly affected by high doses of irradiation, and the U(VI) adsorption capacity of the irradiated bentonite was reduced compared to that of raw bentonite. Overall, this study provides insights into the negative effects of high-dose γ-ray irradiation on the stability and adsorption capacity of bentonite, which has safety implications for the storage of radioactive waste. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
331
Journal Issue
1
Journal Page Range
p. 339-352
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
53025639
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY;
Descriptors DEI
ADSORPTION; BENTONITE; DOSE RATES; GAMMA RADIATION; IRRADIATION; RADIOACTIVE WASTE STORAGE; RADIOLYSIS; URANIUM
Descriptors DEC
ACTINIDES; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CLAYS; DECOMPOSITION; ELECTROMAGNETIC RADIATION; ELEMENTS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; IONIZING RADIATIONS; MANAGEMENT; MATERIALS; METALS; MINERALS; RADIATION EFFECTS; RADIATIONS; RADIOACTIVE WASTE MANAGEMENT; SILICATE MINERALS; SORPTION; STORAGE; WASTE MANAGEMENT; WASTE STORAGE

Optional Information

Notes
46 refs.