Journal
SOLVENT EXTRACTION AND ION EXCHANGE
Volume 35, Issue 2, Pages 91-103Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07366299.2017.1287509
Keywords
Adsorption; desorption; rare earth; graphene oxide
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Funding
- Swedish Research Council (VR)
- Swedish Governmental Agency for Innovation Systems (VINNOVA)
- Erasmus Mundus program (EM-WELCOME)
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Graphene oxide (GO) was synthesized and used as a coagulant of rare earth elements (REEs) from aqueous solution. Stability and adsorption capacities were exhibited for target REEs such as La(III), Nd(III), Gd(III), and Y(III). The parameters influencing the adsorption capacity of the target species including contact time, pH, initial concentration, and temperature were optimized. The adsorption kinetics and thermodynamics were studied. The method showed quantitative recovery (99%) upon desorption using HNO3 acid (0.1 M) after a short contact time (15 min).
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