Comparison of radon adsorption properties under dynamic radon exhalation condition and characteristics of three biochar

An innovative phytic acid modified reed straw-derived hydrochar composite (PA-C-RBC) was prepared by using inexpensive reed straw and non-toxic phytic acid for the removal of uranium(VI) from aqueous environment. Several characterization results showed that PA-C-RBC was rough and porous with a large number of hydroxyl, carboxyl, and phosphate groups. The uranium(VI) adsorption process by PA-C-RBC conformed to pseudo-second-order kinetic and Langmuir models, and the theoretical maximal adsorption capacity could attain 418.78 mg/g at pH 5.0. PA-C-RBC had 72.66 % of selectivity and 6772.99 mL/g of distribution coefficient for U(VI). Due to the strong chelating between the hydroxyl and phosphate groups on PA-C-RBC and U(VI), PA-C-RBC had excellent adsorption selectivity. These finding highlighted a high potential for removing U(VI) from aqueous solutions.

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Comparison of radon adsorption properties under dynamic radon exhalation condition and characteristics of three biochar

Cited by 2 publications

References 20 publications

Study of the influence of pore structure on the radon emission characteristics of terrestrial sedimentary shales after high temperature action

Study of the influence of pore structure on the radon emission characteristics of terrestrial sedimentary shales after high temperature action

Incorporation of phytic acid into reed straw-derived hydrochar for highly efficient and selective adsorption of uranium(VI)

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