Authors:
Guo Zhijun Lanzhou University Lanzhou Radiochemistry Laboratory, College of Chemistry and Chemical Engineering 730000 P.R. China

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Yan Zhaoyun Lanzhou University Lanzhou Radiochemistry Laboratory, College of Chemistry and Chemical Engineering 730000 P.R. China

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Tao Zuyi Lanzhou University Lanzhou Radiochemistry Laboratory, College of Chemistry and Chemical Engineering 730000 P.R. China

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Abstract  

The sorption of UO22+ on TiO2 was studied as a function of pH and ionic strength at moderate concentration (10-4-10-5mol/l) in the presence and absence of fulvic acid (FA, 20 mg/l). It was found that the sorption rates in the presence and absence of FA are fast and similar, slowly and similarly increased with increasing pH from 2 to 10. The sorption in the absence of FA increased with increasing ionic strength while, in the presence of FA it decreased. FA caused a relative enhancement in the sorption at pH<6. The sorptions in the presence and absence of FA at constant pH followed the linear sorption isotherm, and the distribution coefficients found are of the order of 10 to 103 ml/g.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)