Preparation of magnetic biomass-carbon aerogel and its application for adsorption of uranium(VI)
- 1. University of South China, Hengyang, Hunan (China). School of Chemistry and Chemical Engineering
- 2. Hunan Key Laboratory for the Design and Application of Actinide Complexes, Hengyang (China)
- 3. Hunan Province Engineering Research Center of Radioactive Control Technology in Uranium Mining and Metallurgy, and Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment Technology, University of South China, Hengyang (China)
Description
Magnetic carbon aerogels were prepared from inexpensive and readily available winter melon to adsorb U(VI). The morphology, structure, magnetism, characteristic functional groups and chemical bonds of magnetic carbon aerogels were characterized by TEM, SEM, XRD, BET, VSM, FT-IR, XPS. Under the condition of 303 K and pH 6, magnetic carbon aerogel reached adsorption equilibrium within 120 min, with the adsorption capacity of 230.3 mg g-1, much higher than that of carbon aerogel (77.9 mg g-1), which is the function of Fe-O. The good magnetism of magnetic carbon aerogels allows it to be easily separated from the solution by applying magnetic field. The adsorption isotherm data accord with Langmuir isothermal model. Adsorption is a spontaneous and endothermic process. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 326
- Journal Issue
- 2
- Journal Page Range
- p. 1307-1321
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 52021737
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ADSORPTION; BIOMASS; CARBON; GELS; MAGNETIZATION; URANIUM IONS
- Descriptors DEC
- CHARGED PARTICLES; COLLOIDS; DISPERSIONS; ELEMENTS; ENERGY SOURCES; IONS; NONMETALS; RENEWABLE ENERGY SOURCES; SORPTION
Optional Information
- Notes
- 54 refs.