Published 1997
| Version v1
Journal article
UO22+ sorption on bentonite
- 1. Instituto Nacional de Investigaciones Nucleares, Mexico City (Mexico)
- 2. Universidad Nacional Autonoma de Mexico, Mexico City (Mexico). Inst. de Fisica
- 3. Universidad Autonoma Metropolitana, Mexico City (Mexico)
Description
The capacity of bentonite and purified bentonite to remove UO22+ ions from aqueous solutions has been investigated. The UO22+ uptake in these clays was determined for 0.2 and 0.002M uranyl nitrate solutions. It was found that under these conditions (0.2M) the maximum UO22+ uptake was 1.010±0.070 meq UO22+/g of bentonite and 0.787±0.020 meq UO22+/g of purified bentonite. In purified bentonite UO22+ sorption is irreversible up to 50 hours as no desorption was observed. Such is not the case in the natural bentonite. X-ray diffraction, thermal analyses, and transmission electron microscopy were used to characterize the solids. The uranium content was determined by neutron activation analysis. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 218
- Journal Issue
- 1
- Journal Page Range
- p. 65-69.
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 28046394
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- AQUEOUS SOLUTIONS; BENTONITE; IMAGES; NEUTRON ACTIVATION ANALYSIS; SORPTION; TRANSMISSION ELECTRON MICROSCOPY; URANIUM OXIDES; X-RAY DIFFRACTION
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTIVATION ANALYSIS; CHALCOGENIDES; CHEMICAL ANALYSIS; CLAYS; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; HOMOGENEOUS MIXTURES; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MATERIALS; MICROSCOPY; MINERALS; MIXTURES; NONDESTRUCTIVE ANALYSIS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; SILICATE MINERALS; SOLUTIONS; URANIUM COMPOUNDS
Optional Information
- Notes
- 6 refs.