Synthesis and application of sulfonated graphene oxide for the adsorption of uranium(VI) from aqueous solutions
| Autor: | Zhi-ming Dong, Zhi-bin Zhang, Yun-hai Liu, Xiao-hong Cao, Pan-feng Wang, Yan-fang Qiu, Ying Dai, Zhanggao Le, Bao Gao |
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| Rok vydání: | 2016 |
| Předmět: |
Health
Toxicology and Mutagenesis Inorganic chemistry Oxide 02 engineering and technology 010501 environmental sciences 01 natural sciences Endothermic process Analytical Chemistry law.invention chemistry.chemical_compound symbols.namesake Adsorption law Radiology Nuclear Medicine and imaging Spectroscopy 0105 earth and related environmental sciences Aqueous solution Chemistry Graphene Public Health Environmental and Occupational Health Langmuir adsorption model Sorption 021001 nanoscience & nanotechnology Pollution Nuclear Energy and Engineering Ionic strength symbols 0210 nano-technology |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 310:547-557 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-016-4813-6 |
| Popis: | In this article, we report a facile one-pot method to prepare sulfonated graphene oxide (GOS) via vapor–solid transfer reaction of graphene oxide (GO). The synthesized GOS were characterized and investigated as an adsorbent for the adsorption of U(VI) from aqueous solutions. The results indicated that the adsorption of U(VI) was strongly dependent on pH and independent of ionic strength. The adsorption process followed the pseudo-second-order kinetics and the adsorption isotherm agreed well with the Langmuir model, having a maximum adsorption capacity of 309.09 mg g−1. Thermodynamic parameters indicated that the adsorption reaction was an endothermic and spontaneous process. |
| Databáze: | OpenAIRE |
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