Details
| Original language | English |
|---|---|
| Pages (from-to) | 117-121 |
| Number of pages | 5 |
| Journal | Radiochimica acta |
| Volume | 78 |
| Issue number | 1 |
| Publication status | Published - 1997 |
Abstract
In HDPy-bentonite, highest sorption (Rd ∼ 4000 ml · g-1) was observed in samples with an alkylammonium ion application of 2 times of the cation exchange capacity (CEC), when bidistilled water was used as solvent. In the case of synthetic ground water (SOW), lower distribution ratios (Rd-values) were obtained. Great similarity between the sorption and desorption data was found with bidistilled water suggesting reversible sorption processes. Using SGW the sorption was found to be only partially reversible. According to XRD-measurements, the d001-values of the organo-bentonites increased from 1.48 nm to 4.55 nm in correspondence to the enhanced HDPy+ content of the samples. The observed shifting of the reflections indicates the formation of superstructured silicate layers.
Keywords
- Alkylammonium ions, Ion exchange, Organo-clays, Radioiodide, Sorption
ASJC Scopus subject areas
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Radiochimica acta, Vol. 78, No. 1, 1997, p. 117-121.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Sorption Characteristics of Radioiodide on Organophilic Bentonite
AU - Bors, J.
AU - Gorny, A.
AU - Dultz, St
N1 - Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - In HDPy-bentonite, highest sorption (Rd ∼ 4000 ml · g-1) was observed in samples with an alkylammonium ion application of 2 times of the cation exchange capacity (CEC), when bidistilled water was used as solvent. In the case of synthetic ground water (SOW), lower distribution ratios (Rd-values) were obtained. Great similarity between the sorption and desorption data was found with bidistilled water suggesting reversible sorption processes. Using SGW the sorption was found to be only partially reversible. According to XRD-measurements, the d001-values of the organo-bentonites increased from 1.48 nm to 4.55 nm in correspondence to the enhanced HDPy+ content of the samples. The observed shifting of the reflections indicates the formation of superstructured silicate layers.
AB - In HDPy-bentonite, highest sorption (Rd ∼ 4000 ml · g-1) was observed in samples with an alkylammonium ion application of 2 times of the cation exchange capacity (CEC), when bidistilled water was used as solvent. In the case of synthetic ground water (SOW), lower distribution ratios (Rd-values) were obtained. Great similarity between the sorption and desorption data was found with bidistilled water suggesting reversible sorption processes. Using SGW the sorption was found to be only partially reversible. According to XRD-measurements, the d001-values of the organo-bentonites increased from 1.48 nm to 4.55 nm in correspondence to the enhanced HDPy+ content of the samples. The observed shifting of the reflections indicates the formation of superstructured silicate layers.
KW - Alkylammonium ions
KW - Ion exchange
KW - Organo-clays
KW - Radioiodide
KW - Sorption
UR - http://www.scopus.com/inward/record.url?scp=0041394664&partnerID=8YFLogxK
U2 - 10.1524/ract.1997.78.special-issue.117
DO - 10.1524/ract.1997.78.special-issue.117
M3 - Article
AN - SCOPUS:0041394664
VL - 78
SP - 117
EP - 121
JO - Radiochimica acta
JF - Radiochimica acta
SN - 0033-8230
IS - 1
ER -