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Liatsou Ioanna Christodoulou Eleni Pashalidis Ioannis 《Journal of Radioanalytical and Nuclear Chemistry》2018,317(2):1065-1070
Journal of Radioanalytical and Nuclear Chemistry - The present study deals with the preparation of oxidized biochar fibres derived from Luffa cylindrica sponges and the subsequent adsorption of... 相似文献
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Ioannou Katerina Hadjiyiannis Pantelis Liatsou Ioanna Pashalidis Ioannis 《Journal of Radioanalytical and Nuclear Chemistry》2019,320(2):425-432
The removal of U(VI) by biochar fibers from aqueous solutions has been investigated prior and after MnO2 surface-deposition. The removal efficiency has been studied as a function of pH, U(VI) concentration, ionic strength, temperature and contact time. The fibers morphology and surface complexes were analyzed by SEM–EDX and FTIR, respectively. Evaluation of the experimental data indicates that the composite presents extraordinary adsorption capacity (qmax = 3.8 mmol g−1, 904 mg g−1), which is attributed to the formation of inner-sphere surface complexes, and that the adsorption reaction is a relatively fast, endothermic and entropy-driven process.
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