Study on adsorption properties of water hyacinth-derived biochar for uranium (VI)

The adsorption capacity of the water hyacinth-derived biochar on U(VI) was investigated in this study. The as-prepared sample was characterized by methods of SEM, XRD, XPS, FT-IR and BET. Functional groups on the biochar surface could undergo complexation with U(VI). Effects of adsorption dose, temp...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2020-06, Vol.324 (3), p.1317-1327
Main Authors: Xu, Zimu, Xing, Yexin, Ren, Anran, Ma, Doudou, Li, Yunxia, Hu, Shuheng
Format: Article
Language:English
Subjects:
Adsorption
Analysis
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Functional groups
Green technology
Hadrons
Heavy Ions
Inorganic Chemistry
Ions
Kinetic equations
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Uranium
Water
Water hyacinths
X ray photoelectron spectroscopy
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Summary:The adsorption capacity of the water hyacinth-derived biochar on U(VI) was investigated in this study. The as-prepared sample was characterized by methods of SEM, XRD, XPS, FT-IR and BET. Functional groups on the biochar surface could undergo complexation with U(VI). Effects of adsorption dose, temperature, contact time, solution pH and ionic strength were studied by static batch experiments. Results show that the adsorption could be better fitted by the pseudo-second-order kinetic equation and Langmuir model. The solution pH has a great impact on the U(VI) adsorption, while the ionic strength exerts no significant effect.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-020-07160-2