A sorbent of expanded rice husk powder for removal of uranyl ion from aqueous solution
| Autor: | You-Li Zong, Song-Tao Huang, Yongde Zhang, Ming-Hua Ou, Jian Zhou, Jing Wang, Xuegang Luo |
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| Rok vydání: | 2016 |
| Předmět: |
Sorbent
Materials science Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010403 inorganic & nuclear chemistry 01 natural sciences Husk symbols.namesake chemistry.chemical_compound Adsorption Materials Chemistry Physical and Theoretical Chemistry Aqueous solution Metals and Alloys Langmuir adsorption model Uranium 021001 nanoscience & nanotechnology Condensed Matter Physics Uranyl 0104 chemical sciences chemistry symbols 0210 nano-technology Saturation (chemistry) Nuclear chemistry |
| Zdroj: | Rare Metals. 35:425-432 |
| ISSN: | 1867-7185 1001-0521 |
| DOI: | 10.1007/s12598-016-0715-6 |
| Popis: | A novel sorbent for the removal of uranyl ion was prepared by expanded rice husk powder. Batch adsorption experiments were performed on factors of pH, temperature, initial uranyl ion concentration, adsorbent dosage and contact time to evaluate the adsorption capacity. The results show that the saturation adsorption capacity is 5.7 mg·g−1 using expanded rice husk powder treating uranyl ion aqueous solution (80 mg·L−1) for 24 h at 25 °C with initial pH 3. Adsorption process could be well described by Langmuir isotherm model. The adsorption kinetic data are fitted well with pseudo-second-order model. The results obtained show that expanded rice husk adsorbent is a promising adsorbent for the removal of uranium from aqueous solutions. |
| Databáze: | OpenAIRE |
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