Journal
SOLVENT EXTRACTION AND ION EXCHANGE
Volume 35, Issue 6, Pages 450-459Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07366299.2017.1354580
Keywords
Chelex 100; scandium; activated carbon; carbon nanotubes; graphene oxide
Categories
Funding
- National Centre for Research and Development, Poland [PBS3/A9/28/2015]
Ask authors/readers for more resources
The sorption behavior of Sc(III) on different materials including activated carbon (AC), carbon nanotubes (CNTs), graphene oxide (GO), and the chelating resin Chelex 100 was investigated. In general, the sorption of scandium increases with increasing pH. For pH in the range from 2.5 to 5.5, the sorption of Sc(III) onto CNTs, GO, and Chelex 100 is quantitative, whereas a significantly lower amount of scandium ions was retained on AC. The specific amount of Sc(III) adsorbed at pH 2 attained 2.1, 2.9, 36.5, and 37.9mg g(-1) for AC-COOH, Chelex 100, GO, and CNTs-COOH, respectively. At pH 4, a similar value was obtained for oxidized AC (2.2mg g(-1)), whereas the specific amount adsorbed significantly increased for Chelex (23.4mg g(-1)). The highest values were obtained for GO (39.7mg g(-1)) and oxidized CNTs (42.5mg g(-1)). Better kinetic retention was observed at pH 2 for CNTs and GO, whereas at pH 4 the kinetic behavior of Chelex 100, GO, and CNTs toward Sc(III) was comparable.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available