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- W4220657611 endingPage "153136" @default.
- W4220657611 startingPage "153136" @default.
- W4220657611 abstract "The efficient treatment of uranium (U(VI)) is a challenging issue regarding radioactive wastewater management. As a byproduct of kitchen waste, fish scales with a unique collagen-hydroxyapatite structure have recently been studied in various fields. Only a few reports have focused on the preparation of temperature-tuned fish-scale biochar, especially with a two-dimensional homogeneous porous structure, for radioactive wastewater management. Herein, a novel homogeneous porous activated biochar (AB) with fish scales as precursors was prepared by temperature control, and then ABs presented an adsorption capacity for U(VI) as high as 291.98 mg/g. Meanwhile, the effect of factors (pH, ionic strength, contact time, etc.) were comprehensively investigated. Thermodynamic parameters demonstrated that the adsorption of U(VI) was a spontaneous and endothermic process, and the chemisorption governed the adsorption process. Significantly, AB-750 with a greater specific surface area of 1074.73 m2 g−1 and higher surface roughness, was more suitable for the efficient capture of U(VI). The desorption and reusability studies also suggested that AB-750 was a promising candidate for long-term use. As illustrated with the spectral analysis, the carboxyl/amino groups on AB-750 were the main functional groups for the immobilization of U(VI). Thus, this work opened a new pathway for the preparation and application of fish-scale biochar for the efficient extraction of U(VI)." @default.
- W4220657611 created "2022-04-03" @default.
- W4220657611 creator A5006588050 @default.
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- W4220657611 creator A5045839676 @default.
- W4220657611 creator A5084129553 @default.
- W4220657611 date "2022-07-01" @default.
- W4220657611 modified "2023-10-13" @default.
- W4220657611 title "Temperature-tuned fish-scale biochar with two-dimensional homogeneous porous structure: A promising uranium extractant" @default.
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- W4220657611 doi "https://doi.org/10.1016/j.apsusc.2022.153136" @default.
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