Adsorption Characteristics of Uranyl Ions on Carboxymethylated Polyethyleneimine (CM-PEI) / Activated Carbon Composites
- Resource Type
- Authors
- Ke Chon Choi; Ji Man Kim; Yongju Jung; Hyung Ik Lee; Soo-Jin Park; Seok Kim
- Source
- Solid State Phenomena. :1257-1260
- Subject
- Materials science
Composite number
Inorganic chemistry
Langmuir adsorption model
Condensed Matter Physics
Uranyl
Atomic and Molecular Physics, and Optics
Ion
symbols.namesake
chemistry.chemical_compound
Nanopore
Adsorption
chemistry
symbols
medicine
General Materials Science
Sorption isotherm
Activated carbon
medicine.drug
- Language
- ISSN
- 1662-9779
We present the adsorption characteristics of uranyl ions on a new and innovative composite which was composed of a carboxymethylated polyethyleneimine (CM-PEI) and an activated carbon (F400) with a nanopore less than 2 nm in diameter. In this study, we examined the adsorption phenomena of uranyl ions on the CM-PEI/F400 composite and evaluated the adsorption data using various isotherm models. It was found that the adsorption of uranyl ions on the CM-PEI/F400 composite obeys the Langmuir isotherm model. In addition, it was observed that pH of solutions had great influence on the adsorption capacity of uranyl ions on the CM-PEI/F400 composite. Specially, the adsorption capacity of uranyl ions was linearly increased with an increase of pH at pH > 3.0.