Preparation of pure TiO2 sorption material

Autor(en)

I. Spendlikova, J. Raindl, M. Nemec, P. Steier, P. Micolova

Abstrakt

Determination of ^236U/238U

at natural ratios using accelerator mass spectrometry (AMS) requires

overall purity of each step in the sample preparation procedures which

are complex and include various chemicals. Therefore, the simplification

of the procedures is desirable and can be done by implementing other

effective separation materials. Among the prospective sorption

materials, hydrated titanium dioxides showed promising properties for

uranium extraction from various water samples. This paper shows the

preparation of several titanium based sorption materials using an

organic precursor and their characterization with several techniques in

order to analyse crystal structure (XRPD, SEM, HRTEM, SAED) and residues

of organic compounds (TG analysis and IR spectroscopy) and to quantify

their sorption properties towards uranium. The practical sorption

capacity of one of the prepared materials was as high as 260 mg of

uranium per gram. AMS measurements showed that it is possible to prepare

sufficiently pure titanium dioxides for the determination of ²³⁶U/²³⁸U ratio.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Czech Technical University in Prague (CTU)

Journal

Journal of Radioanalytical and Nuclear Chemistry

Band

300

Seiten

1151-1158

Anzahl der Seiten

8

ISSN

0236-5731

DOI

https://doi.org/10.1007/s10967-014-3061-x

Publikationsdatum

06-2014

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik, 104020 Radiochemie

Schlagwörter

ASJC Scopus Sachgebiete

Public Health, Environmental and Occupational Health, Analytical Chemistry, Pollution, Radiology Nuclear Medicine and imaging, Spectroscopy, Health, Toxicology and Mutagenesis, Nuclear Energy and Engineering

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/preparation-of-pure-tio2-sorption-material(2d976661-afe9-4e9e-a69b-9b903daf0929).html